Cellulose Acetate Butyrate Characteristics, Applications and Selection Guide

2025-04-02

Table of Contents

1. Introduction

Overview of the properties and application fields of cellulose acetate butyrate (CAB).

2. What is Cellulose Acetate Butyrate?

Introduce the chemical structure, preparation method and main properties of CAB.

3. Main Properties of Cellulose Acetate Butyrate

Detailed description of the physical properties, chemical stability and environmental friendliness of CAB.

4. Cellulose Acetate Butyrate Uses

Discuss the application of CAB in coatings, printing inks, nail care, varnishes and other fields.

5. What are the Different Types of Cellulose Acetate Butyrate? How Do I Choose?

Compare the models and properties of iSuoChem and Eastman CAB products.

6. Does My Project Really Need Cellulose Acetate Butyrate? What are Its Advantages?

Analyze the advantages of CAB resin and its applicable scenarios.

7. How to Choose the Right Cellulose Acetate Butyrate Product

Provide practical suggestions for selecting CAB products, including performance parameters and supplier selection.

8. FAQ

Answers to common questions about CAB, including safety, technical support and price advantages.

9. Conclusion

Summarizes the characteristics and application prospects of CAB, and emphasizes its importance as a modern industrial material.

1. Introduction

Cellulose Acetate Butyrate (CAB) is an important cellulose derivative that is widely used in many industrial fields due to its unique chemical structure and physical properties. CAB is usually a white powder with excellent solubility, flexibility and weather resistance, making it an ideal material for coatings, printing inks, nail care and varnishes. This article will explore the characteristics, application scenarios and how to choose the right Cellulose Acetate Butyrate product according to your needs.

2. What is CAB Cellulose Acetate Butyrate?

Cellulose Acetate Butyrate is a polymer material made from cellulose through acetylation and butyrylation reactions. Its molecular structure contains acetyl, butyryl and hydroxyl groups, and the content of these groups determines the performance of CAB. For example, an increase in the acetyl content increases the melting point and tensile strength of the material, while an increase in the butyryl content reduces the density and expands the solubility range.

Cellulose Acetate Butyrate has excellent moisture resistance, UV resistance, flexibility and transparency, and also has good electrical insulation properties. These properties make it perform well in coatings, inks and varnishes. 314.

Cellulose Acetate Butyrate granule

3. Main properties of cellulose acetate butyrate

1. Physical properties: Cellulose Acetate Butyrate is usually a white powder with a density of 1.2-1.26 g/mL and a melting point range of 155°C to 240°C. Its refractive index is 1.475, with good transparency and optical properties.

2. Chemical stability: Cellulose Acetate Butyrate has good solubility in a variety of solvents and good compatibility with resins and high-boiling plasticizers. Its chemical corrosion resistance and weather resistance make it suitable for outdoor applications.

3. Eco-friendly: As a bio-based material, Cellulose Acetate Butyrate is degradable and has little impact on the environment, which meets the needs of sustainable development.

4. Cellulose acetate butyrate uses

1. Coatings: Cellulose Acetate Butyrate is widely used in automotive coatings, which can accelerate solvent evaporation, shorten drying time, and enhance the wear resistance and color stability of the coating. For example, Eastman CAB-381-0.5 can be used in automotive plastic coatings and wood coatings, which has the characteristics of improving leveling and increasing brightness. Currently, iSuoChem can provide completely equivalent models.

2. Printing inks: Cellulose Acetate Butyrate is added to inks as a leveling agent to improve leveling, eliminate paint film shrinkage, and enhance the adhesion and gloss of inks14.

3. Nail care: The application of Cellulose Acetate Butyrate in nail polish provides excellent flexibility and weather resistance, making nail polish more durable and beautiful3.

4. Varnish: Cellulose Acetate Butyrate can enhance adhesion, gloss and gloss retention when added to varnish, making the coating have extremely high gloss and wear resistance14.

5. Other application areas

CAB Cellulose Acetate Butyrate Manufacturer

5. What are the different types of Cellulose Acetate Butyrate CAB? How do I choose?

Code	Cellulose Acetate Butyrate Properties	Equivalent Brand
iSuoChem CAB-381-0.1	Low solution viscosity, good solubility, suitable for wood, metal, plastic coatings, reducing shrinkage, shortening drying time, improving pigment control and inter-coating adhesion	EASTMAN
iSuoChem CAB-381-0.5	Good solubility, higher viscosity, increased toughness, suitable for automotive basecoat, improves leveling and drying performance, improves orientation of flake metal pigments	EASTMAN
iSuoChem CAB-381-2	Good solubility, higher viscosity, suitable for high viscosity coatings, enhanced wear resistance and color stability, increased toughness, suitable for automotive basecoats, improved orientation of flake metal pigments	EASTMAN
iSuoChem CAB-381-20	Good solubility, high viscosity, suitable for high viscosity coatings, enhanced wear resistance and color stability, large rheology modification, enhanced wear resistance and color stability	EASTMAN
iSuoChem CAB-551-0.01	Excellent compatibility, low viscosity, suitable for UV curing coatings, improving hardness and construction performance	EASTMAN
iSuoChem CAB-551-0.2	Excellent compatibility, low viscosity, suitable for high solid coatings, improving construction performance	EASTMAN
iSuoChem CAB-531-1	Higher butyryl content, improved compatibility, suitable for high butyryl content coatings, improved compatibility and pigment wetting	EASTMAN

6. Does my project really need Cellulose Acetate Butyrate CAB resin? What are its advantages?

iSuoChem CAB Resin series is favored by the market for replacing Eastman CAB full series products. iSuoChem not only has the same product advantages as Eastman, such as pigment control, adhesion, toughness and construction performance, but is also suitable for industrial applications with high performance requirements.

With outstanding performance in solution transparency and price, iSuoChem CAB full series is more suitable for projects that need to control production costs and have high transparency requirements.

7. How to choose the right cellulose acetate butyrate product

1. Choose according to application requirements: Different applications have different performance requirements for Cellulose Acetate Butyrate. For example, automotive coatings require high weather resistance and wear resistance, while printing inks require good leveling and adhesion314.

2. Consider performance parameters: When selecting Cellulose Acetate Butyrate products, pay attention to parameters such as acetyl and butyryl content, molecular weight, solubility, etc. For example, Eastman CAB-381-2 has high viscosity and excellent flexibility, which is suitable for metal coatings and plastic coatings. iSuoChem CAB 381-2 can provide equivalent performance.

3. Suppliers and prices: There are multiple suppliers on the market that provide CAB products, with different prices and specifications. For example, the packaging specification of Eastman CAB-381-0.5 is 20KG/bag, which is suitable for occasions with low construction viscosity. iSuoChem CAB 381-0.5 can provide equivalent packaging.

8. FAQ

Here are some frequently asked questions about WPC decking:

Q: What is cellulose acetate butyrate used for?

A: Eastman cellulose acetate butyrate is mixed cellulose esters containing acetate and butyrate functional groups. They are commonly used as binders and additives in coating applications for a variety of substrates, including plastics, textiles, metal, and wood.

Q: Is cellulose acetate butyrate safe?

A: Yes. Cellulose acetate butyrate is a biodegradable and environmentally friendly material. Therefore, it must be environmentally friendly and safe.

Q: Do you provide technical guidance?

A: Yes. We have professional pre-sales, after-sales and technical engineers who can provide technical guidance on applications.

Q: Do you have price advantages?

A: Compared with Eastman, our cab cellulose acetate butyrate price has a great advantage.

Q: What are the main brands in the market?

A: Currently, the main international brand in the market is Eastman. iSuoChem can produce and sell all of Eastman's existing CAB products.

Q: What are the appearance of cellulose acetate butyrate?

A: We have white coarse cellulose acetate butyrate granule and fine powder.

Q: Why should we choose you instead of Eastman?

We have professional sales staff who can help you with pre-sales consultation, sample confirmation(Advanced sample managerment), follow-up of bulk production, export by sea and land, and customs declaration/clearance. Our price is very competitive. After it is dissolved, you can see that our transparency of cellulose acetate butyrate solubility is very high compared to Eastman. Please ask for a comparison test video from us.

9. Conclusion

Cellulose acetate butyrate has shown broad application prospects in the fields of coatings, printing inks, nail care and varnishes. Its excellent physical properties, chemical stability and environmental friendliness make it an important material in modern industry. By understanding the characteristics and application scenarios of CAB, users can choose suitable products according to specific needs and give full play to its performance advantages.

#cellulose acetate butyrate granule #Cellulose Acetate Butyrate for coatings #what is cellulose acetate butyrate

How Does Polyamide Resin Work in Coatings and Inks?

2025-04-02

Polyamide resins are widely used in the coatings and inks industry, significantly enhancing product performance, durability, and adhesion.

Polyamide resins are synthetic polymers formed by the condensation of polyamines and dicarboxylic acids. They exhibit excellent chemical resistance, high thermal stability, and strong adhesion to various substrates. Below, we will explore the role of polyamide resins in coatings and inks in detail, supported by some real applications by our customers.

Polyamide Resin for coatings

Main Properties of Polyamide Resins

Polyamide resins possess several properties that make them particularly suitable for coatings and ink formulations:Strong Adhesion(long-lasting adhesion is critical), Chemical Resistance(This ensures that coatings and inks maintain their integrity even when exposed to corrosive substances.), Durability(These resins significantly improve the durability of coatings and inks. They withstand wear, abrasion, and environmental factors), Flexibility(Polyamide resins enhance the flexibility of coatings, making them resistant to cracking or peeling under pressure.)

Product Applications in Coatings

In coatings, polyamide resins act as adhesives, binding pigments and other components together while forming a continuous film. They improve corrosion resistance, enhance gloss, and increase wear resistance. Polyamide-based coatings are commonly used in high-performance applications such as marine coatings, automotive topcoats, building coatings and industrial protective coatings.

Customers' Examples:

Marine Coatings: Our marine coatings manufacturers developed a new anti-corrosion coating using polyamide resins, significantly improving the durability of ship hulls in seawater and reducing maintenance costs.

Automotive Coatings: Our automotive manufacturer customer incorporated polyamide resins into the coatings for its premium models, ensuring the paint remained glossy and intact under extreme weather conditions.

Product Applications in Inks

In ink formulations, polyamide resins primarily serve as binders, firmly holding pigment particles together and ensuring strong adhesion to substrates like paper, plastic, or metal. This high adhesion is particularly evident in inks used for printing on non-porous surfaces, such as packaging materials or industrial labels.

Polyamide resins also enhance the ink's resistance to staining, fading, and abrasion, which is essential for the long-term clarity and quality of printed materials. They are compatible with various pigments and additives, making them versatile for different ink formulations, including flexographic and offset printing.

Polyamide Resin for inks

Customers' Examples：

Packaging Inks: Our packaging customers developed a new food packaging ink using polyamide resins, significantly improving the durability and vibrancy of printed designs.

Industrial Labels: Some industrial label manufacturers improved its ink formulation with polyamide resins, ensuring labels remained legible under high temperatures and humidity.

Environmental Benefits

In recent years, the coatings and inks industry has seen growing demand for eco-friendly solutions. Polyamide resins can be formulated into low-VOC (volatile organic compound) products, making them a more sustainable choice for many applications.

Customers' Examples：

Eco-Friendly Coatings: Some European coatings manufacturers launched a low-VOC coating based on polyamide resins, earning multiple environmental certifications and successfully entering the high-end construction market.

As we all know that polyamide resins play an important role in enhancing the performance of coatings and inks. Their excellent adhesion, chemical resistance, durability, and flexibility make them the better choice for high-performance applications across many industries.

#Polyamide Resin for coatings #Polyamide Resin for inks #Polyamide Resin for paints

Polyvinyl butyral for coatings

2025-04-02

Artile Topic: (PVB resin) Polyvinyl butyral for Coatings/Paints

Polyvinyl butyral (PVB resin) is polyvinyl butyral resin. It not only has good bonding properties, but also has excellent film-forming properties and wear resistance. So iSuoChem Polyvinyl butyral is widely used in the coating industry.

Polyvinyl butyral is a solvent-based resin. It is synthesized by acetal reaction of polyvinyl alcohol (PVA) and butyraldehyde under the action of a catalyst. It is non-corrosive and has good solubility, light resistance, water resistance, heat resistance, cold resistance, oil resistance, wear resistance and corrosion resistance. This adhesive resin is non-toxic, odorless and environmentally friendly. So Polyvinyl butyral is favored by many countries that have high requirements for the environmental protection level of coatings.

Next, I will list some conventional coating application areas. At high temperatures, polyvinyl butyral can also perform well in other related coating industry applications.

1. Wood coatings: Polyvinyl butyral can be treated as surface treatment agent for plywood, hardboard, or primer for insulating materials.

2. Metal coatings: After mixing PVB with other natural resins, synthetic resins, drying oils, etc., it can improve the impact resistance, flexibility and density of thermosetting resins.

3. Concrete coating: When polyvinyl butyral solution is used as a primer, it can improve the durability of water-based paint films.

4. Waterproof coating: Polyvinyl butyral resin is used as a waterproof coating for fabrics, tents, coats, instrument bags, etc. Good results can be obtained by adding polyvinyl butyral to waterproof coatings.

5. Glossy surface protective coating: Polyvinyl butyral films show strong elongation at room temperature and can maintain this property at low temperatures, so the unique properties of polyvinyl butyral resin can be used to prepare films with excellent softness and elasticity.

6. Vacuum deposition coating: PVB solution has good adhesion to plastic surfaces, paper and metal surfaces, so it can be used as a vacuum deposition coating. For example, vacuum aluminum plating and adhesives for processed surfaces.

With the continuous development of the coating industry and the continuous improvement of environmental protection requirements, the application of polyvinyl butyral resin will be more extensive and in-depth.

#Polyvinyl butyral for coatings #Polyvinyl butyral for paints #PVB resin for paints

Cellulose Acetate Butyrate in the plastics industry answers to your most concerned application questions

2025-04-02

CAB resin, full name Cellulose Acetate Butyrate, is not only popular in the coating and ink industries, but also has a place in the plastics industry.

1. Basic properties of Cellulose Acetate Butyrate

Cellulose Acetate Butyrate is made from cellulose by esterification with acetic acid and butyrate. This resin has excellent transparency, weather resistance and processing properties. Its chemical structure gives it good oil resistance, water resistance and chemical resistance, and it is also compatible with a variety of plastics and additives. These characteristics make CAB resin have a wide range of application prospects in the plastics industry.

2. Application of Cellulose Acetate Butyrate in Plastic Products

2.1 Transparent Plastic Products

CAB resin has extremely high transparency, almost comparable to glass. Therefore, it is often used to manufacture plastic products that require high transparency, such as eyeglass frames, optical lenses, transparent packaging boxes, etc. These products are not only beautiful in appearance, but also effectively protect the internal items from the influence of the external environment.

2.2 Weather-resistant plastic products

Due to its excellent weather resistance, CAB resin is often used in the manufacture of outdoor plastic products. For example, outdoor furniture, auto parts, building decoration materials, etc. These products can still maintain good performance and appearance in the environment of long-term exposure to sunlight, rain and wind and sand.

2.3 Chemical-resistant plastic products

The chemical resistance of CAB resin makes it perform well in the manufacture of plastic products that need to contact chemicals. For example, laboratory utensils, chemical containers, pipes and valves, etc. These products will not corrode or deform due to contact with chemicals during use, ensuring the safety and reliability of use.

2.4 Plasticity plastic products

CAB resin has good plasticity and can be made into plastic products of various shapes through various processing methods such as injection molding, extrusion, and blow molding. For example, toys, daily necessities, electronic equipment housings, etc. These products are not only beautiful in appearance, but also meet the needs of different users.

3. Advantages of Cellulose Acetate Butyrate

3.1 Environmental protection

CAB resin is a biodegradable material and is environmentally friendly. With the increasing awareness of environmental protection, more and more plastic products are beginning to use CAB resin to reduce pollution to the environment.

3.2 Processing performance

CAB resin has excellent processing performance and can be processed at a lower temperature to save energy. At the same time, it has good fluidity and is easy to mold, and can produce high-quality plastic products.

3.3 Versatility

CAB resin can not only be used alone, but also blended with other plastic materials to improve its performance. For example, blending with polycarbonate (PC) can improve its impact resistance, and blending with polypropylene (PP) can improve its heat resistance.

In general, Cellulose Acetate Butyrate has a very good performance in the plastics industry.

#Cellulose Acetate Butyrate for plastics #CAB resin for plastics

EVA and Polyvinyl Alcohol Chemical and Physical Properties Analysis

2025-03-28

🔬 At a molar fraction of 5% vinyl acetate, the mechanical properties of EVA (ethylene vinyl acetate copolymers) become very similar to those of soft PVC.EVA is flexible in its own right, which gives it a number of advantages, such as the disadvantage of avoiding the migration of plasticizers, which is the main reason for the gradual replacement of PVC.

💪 These copolymers have a higher modulus and better processing properties than typical elastomers and do not require vulcanization considerations. Polyvinyl alcohol can be obtained by hydrolysis of polyvinyl acetate. Poly(vinyl alcohol) is an atactic cubic polymer but does not disrupt the lattice structure due to the small hydroxyl groups. Therefore, ester bases that are not sufficiently hydrolyzed reduce crystallinity and the number of intermolecular hydrogen bonds.

💧 Highly hydrolyzed poly(vinyl acetate) (containing fewer unhydrolyzed ester groups) has a higher crystallinity. As the degree of hydrolysis increases, the molecules become easily crystallized. If these molecules are not sufficiently dispersed before dissolution, hydrogen bonding will cause them to associate with each other. In order to achieve hydrolysis levels above 98%, manufacturers need to operate at a low temperature of 96°C to ensure that the larger molecules have sufficient thermal energy to dissolve.

Website: www.elephchem.com

Whatsapp: (+)86 13851435272

E-mail: admin@elephchem.com

#Ethylene Vinyl Acetate #Dairen EVA #Sinopec EVA #EVA China Suppliers #EVA Chemicals Retailer #Industrial EVA

EVOH Application and Performance Analysis of Excellent Gas Barrier Material

2025-03-28

EVOH (ethylene vinyl acetate copolymer) is a polymer with excellent gas barrier properties and is commonly used in food packaging, medical products, and protective materials for automotive and electronic products. Due to the high molar fraction of vinyl acetate, EVOH exhibits excellent gas barrier properties, especially for oxygen and nitrogen, and is therefore often used in food packaging to extend the shelf life of products.

The gas barrier properties of EVOH stem from its highly crystalline structure, which allows the molecular chains to be arranged more tightly, reducing the path of gas molecules through the material. In order to improve the properties of EVOH, different degrees of hydrolysis are often used to adjust the degree of crystallinity. The higher the degree of hydrolysis, the higher the crystallinity of EVOH and the consequent increase in barrier properties. Therefore, the degree of hydrolysis of EVOH must be strictly controlled during the production process to ensure that the material has ideal gas barrier properties. In China, EVOH products (EW-3201 and EW-3801) produced by Sinopec are highly recognized.

EVOH also offers significant advantages over other plastics in terms of chemical resistance, high temperature resistance and transparency. Its excellent processability allows it to be used directly in multilayer composites without the need for complex post-treatment operations during production, thus enhancing the functionality and economy of the final product.

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#EVOH EW-3201 #EVOH Sinopec #EVAL C109B #EVOH China Suppliers #EVASIN EV-4405F #EVASIN 4451F #EVA F171B #EVA F101B #High Barrier Film

Innovative Applications of PVB resin in Modern Industries

2025-03-28

PVB resin, a versatile and highly adaptable material, has found its way into a myriad of applications across various industries. Its unique properties, such as transparency, durability, and adhesion, make it an indispensable component in modern manufacturing and technology.

PVB resin is widely used as an interlayer material in the production of safety glass. This type of glass boasts exceptional transparency and high impact resistance, making it ideal for applications in the aerospace and automotive sectors. Whether it’s for airplane windows or car windshields, PVB resin-based safety glass ensures both clarity and durability, providing an extra layer of protection in high-stakes environments.

In the realm of protective coatings, PVB resin plays a crucial role in manufacturing anti-corrosion and anti-rust paints. These coatings are known for their strong adhesion, excellent water resistance, and ability to withstand harsh weather conditions. Additionally, PVB resin is used to create metal primers and cold-resistant paints, ensuring that structures and machinery remain intact and functional even in extreme environments.

PVB resin is a key ingredient in the production of vibrant decorative films, which can serve as an alternative to traditional ceramic decals. These films are not only visually appealing but also highly durable. In the PVB resin industry, it is also used to create molding compounds that can replace metals like steel and lead. Furthermore, PVB resin-based adhesives are widely employed for bonding materials such as wood, ceramics, metals, plastics, leather, and laminated composites, showcasing its versatility.

The textile industry benefits from PVB resin in the form of fabric treatment agents and yarn tubes, which enhance the quality and durability of textiles. In the food industry, PVB resin is used to produce non-toxic packaging materials, ensuring the safety and integrity of food products. Its non-toxic nature makes it an ideal choice for packaging sensitive items like tea and cigarettes, where odor retention is a concern.

In the paper industry, PVB resin is utilized as a paper treatment agent, improving the strength and quality of paper products. Additionally, it is used to create anti-shrinkage agents, stiffening agents, and other waterproof materials, further expanding its utility in industrial applications.

PVB resin’s solubility in alcohols and non-toxic nature make it a preferred choice in the printing industry. It is compatible with various printing techniques, including flexography, gravure, letterpress, screen printing, and heat transfer printing. Its ability to produce odor-free prints makes it suitable for packaging sensitive items like tea and cigarettes. Moreover, its cationic properties allow it to adhere strongly to glass surfaces, making it particularly effective for glass decoration through screen printing.

From enhancing the safety of vehicles and aircraft to revolutionizing the printing and packaging industries, PVB resin has proven to be a material of immense value. Its adaptability, combined with its eco-friendly and non-toxic characteristics, ensures that it will continue to play a pivotal role in shaping the future of technology and industry. As research and innovation progress, we can only expect to see even more groundbreaking applications of this remarkable material.

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#Polyvinyl Butyral Film #PVB For Laminated Glass #Polyvinyl Butyral resin #PVB Manufacturer #CCP PVB B-06HX #Changchun PVB B-20HX #PVB For Solar Cell #PVB For Photovoltaic Industry #PVB For Ceramic Industry

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Recycling of Polyvinyl Butyral resin

2025-03-28

In recent years, with the accelerated pace of urbanization in my country and the continuous growth of automobile sales, there has been a strong demand for PVB laminated glass. At the same time, with the development of technology, PVB Film has been researched and developed, and the application market has been further developed. In this development process, we must not only pay attention to new technological innovation, but also overcome the technical difficulties in the process of PVB waste collection and recycling, so as to achieve the environmental friendliness and maximize the economic benefits of the PVB industry. At present, the recycling of PVB resin mainly includes physical recycling method, chemical recycling method and energy recovery method.

Physical recycling is to put the discarded PVB through a series of physical treatment processes, such as separation, purification, cleaning, etc., and at the same time, add certain additives as required for reuse. This method can effectively utilize PVB materials and greatly reduce environmental pollution. For example, the PVB solid waste and scraps discarded in the market are recycled, and after sorting, cleaning, drying, and crushing processes, plasticizers, tougheners, three-salt stabilizers and other additives are added, and waterproof membranes for construction are produced through high-speed mixing, mastication, tableting and other processes. Through experimental research, it has been found that the waterproof membrane has good mechanical properties, convenient processing, and a wide operating temperature range, and has broad market prospects in the construction field.

The chemical recycling method uses light, heat, radiation, and chemical reagents to degrade PVB polymer into low-molecular single or hydrocarbon substances. At the same time, the cracked raw materials can be reused. Common cracking methods include hydrolysis, alcoholysis, thermal cracking, hydrocracking, catalytic cracking, etc. However, the current technology of this deep chemical recovery method is not very mature, the technology cost is high, and the economic benefits are low. Currently, the most commonly used method is to process waste PVB to obtain pure polymer resins and additives. Supercritical separation technology is used to separate the additives and resin in colorless PVB.

Energy recovery is the process of extracting energy from waste plastic, typically used as fuel or to generate steam to generate electricity. Because PVB polymer contains a large amount of hydrocarbons, it is flammable. Although the energy recovery method is one of the methods for recycling PVB waste, it is not commonly used due to its high cost.

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Whatsapp: (+)86 13851435272
E-mail: admin@elephchem.com

#Polyvinyl Butyral Film #PVB For Laminated Glass #Polyvinyl Butyral resin #PVB Manufacturer #CCP PVB B-06HX #Changchun PVB B-20HX #PVB For Solar Cell #PVB For Photovoltaic Industry

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Production Process of Aluminum Nitride Powder via Carbothermal Reduction Method

2025-03-28

Aluminum nitride (AlN) is a high-performance material with high thermal conductivity (320 W·m⁻¹·K⁻¹), excellent electrical insulation (>10¹⁴ Ω·cm), and strong mechanical properties. Its low dielectric constant (8.0 at 1 MHz) and minimal dielectric loss (tanδ = 10⁻⁴) make it ideal for electronics.

Key applications include:

Power device packaging

High thermal conductivity AlN ceramic substrates

Electrostatic chucks' material for semiconductor processing

Excellent insulation ceramic components ( ceramic heaters,ceramic nozzles)

AlN combines thermal management, electrical resistance, and durability for advanced industrial use.

AlN ceramics are sintered from AlN powder, and high-quality AlN powder is a prerequisite for achieving high-performance AlN ceramics. The preparation of AlN powder significantly impacts the sintering, forming, and thermal conductivity of the final product. Industrially, there are three main methods for producing AlN powder: direct nitridation, self-propagating high-temperature synthesis (SHS), and carbothermal reduction.

1. Principle of the Carbothermal Reduction Method

The carbothermal reduction method typically uses aluminum compounds (such as alumina or aluminum hydroxide) and excess elemental carbon or organic carbon as raw materials. These are reacted in a nitrogen (N₂) or ammonia (NH₃) atmosphere at high temperatures. The product is then decarburized in an oxidizing atmosphere at 500–700°C to obtain AlN powder. This method yields powder with low oxygen content, high purity, narrow particle size distribution, and regular particle morphology.

The reaction mechanism can be summarized as follows:

①Reduction of alumina: Carbon reduces alumina to form intermediate products such as Al(g) and Al₂O(g).

②Nitridation: Aluminum reacts with nitrogen to form AlN.

The reaction mechanism of carbothermal reduction can be categorized into gas-solid and solid-solid reactions. Experimental observations of aluminum vapor emission peaks support the formation of gaseous aluminum intermediates under specific conditions. The gas-solid reaction explains mass loss during the process and the mass transfer involved in whisker growth. Meanwhile, the solid-solid reaction mechanism accounts for the morphological continuity between the product and precursor, as well as the formation of intermediate compounds such as Al-O-C and Al-C-N during the conversion of Al₂O₃. This mechanism is more widely accepted.

The AlN powder manufacturing process mainly includes ball milling and mixing, nitridation synthesis, low-temperature decarburization, and AlN crushing/recovery.

2. Process Characteristics of Carbothermal Reduction

The carbothermal reduction method offers advantages such as abundant raw materials, simple processing, and suitability for large-scale production. The synthesized powder exhibits high sphericity, purity, fine particle size, narrow size distribution, and good dispersibility, making it the primary industrial method for AlN powder production. Compared to direct nitridation and SHS, carbothermal reduction yields better sphericity and higher purity AlN powder .

About Xiamen Juci Technology Co., Ltd.

Xiamen Juci Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of high-performance ceramic materials. The company is committed to providing high-quality aluminum nitride series products and solutions for industries such as electronics, semiconductors, and aerospace, earning widespread trust from customers with its exceptional quality and service.

Media Contact:
Xiamen Juci Technology Co., Ltd.

Phone: +86 592 7080230
Email: miki_huang@chinajuci.com
Website: www.jucialnglobal.com

#ceramic nozzles #higher purity AlN powder #ceramic heaters #Electrostatic chucks' material #Excellent insulation ceramic #High thermal conductivity AlN ceramic substrates

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What is the purpose of IMTP Metal saddle ring?

2025-03-21

Purpose of a IMTP Metal Saddle Ring

IMTP Metal Saddle Rings are primarily used in packed towers for the following purposes:

Gas Absorption

Removing specific components from gas streams (e.g., CO₂, H₂S, SO₂ removal in flue gas desulfurization).

Distillation

Separating liquid mixtures based on their boiling points (e.g., in the petrochemical industry).

Stripping

Removing volatile components from liquids (e.g., stripping ammonia from wastewater).

Heat Transfer

Enhancing heat exchange efficiency in cooling towers or heat exchangers.

Chemical Reactions

Improving contact between reactants in catalytic or reactive distillation processes.

Wastewater Treatment

Removing pollutants such as VOCs (volatile organic compounds) or ammonia from water.

#metal saddle ring #IMTP metal saddle ring #saddle ring #304 metal saddle ring #316L metal saddle ring #Metal Intalox Saddle Ring Tower Packing supplier

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