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The role of redispersible emulsion powder in dry mixed mortar

2024-11-25

The redispersible emulsion powder is first physically mixed with other inorganic cementing materials (such as cement, hydrated lime, etc.) and various aggregates and additives to make dry mixed mortar. When the dry mixed mortar is mixed with water, under the action of hydrophilic protective colloid (polyvinyl alcohol) and mechanical shear force, the rubber powder particles are dispersed into the water, and affect the rheology, constructability, compressive bending strength and tensile bond strength of the mortar.

 

Ceramic tile binder is the cement-based bonding material of ceramic tile, which can be used to paste natural stone such as ceramic tile, polished brick and granite. The addition of redispersible emulsion powder can extend the working time and adjust the time of the newly mixed mortar, improve the water retention performance and anti-hanging performance; Improve the bonding property, deformation resistance and aging resistance of hardened mortar.

 

External wall insulation system has been applied in the field of the world, and its installation on the external wall of the building mainly saves the energy consumption of the building 40%-70%. Dry mix mortar modified with redispersing emulsion powder is used to bond polystyrene board to the wall while protecting the polystyrene board. For protective mortars as well as cement-based decorative mortars, polymer adhesive powder provides good adhesion, impact resistance, low water absorption and high flexibility even in harsh environments.

 

After film formation, the emulsion and redispersed emulsion powder can form high tensile strength and bond strength on different materials, and they are combined with cement as the second binder in the mortar, and the cement and polymer play the corresponding special features respectively, so that the performance of the mortar can be improved.

 

Even if the type of emulsion powder copolymer is the same, due to the different production processes of different manufacturers, the properties of latex powder are different, and its properties in the corresponding mortar should be considered comprehensively when selecting rubber powder. With the increase of the national promotion of the use of dry mixed mortar, the demand for redispersible emulsion powder is showing a rapid growth momentum, which is bound to usher in a new peak of use.

 

Website: www.elephchem.com

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ElephChem Holding Limited, professional market expert in Polyvinyl Alcohol(PVA) and Vinyl Acetate–ethylene Copolymer Emulsion(VAE) with strong recognition and excellent plant facilities of international standards.

What are the main differences between anionic and cationic polyacrylamide?

2024-11-22

Anionic and cationic polyacrylamide are two types of polyacrylamide polymers with different charge properties. Here are the main differences between them:

 

1. Charge properties: The key distinction lies in their charge characteristics. Anionic polyacrylamide has a negative charge due to the presence of anionic groups (such as carboxylate or sulfate groups), while cationic polyacrylamide has a positive charge resulting from cationic groups (such as amino or quaternary ammonium groups).

 

2. Applications: The specific charge properties of each type make them suitable for different applications. Anionic polyacrylamide is commonly used as a flocculant in processes like wastewater treatment, mining, and papermaking. It helps in the settling of suspended particles by neutralizing the charges and forming larger flocs. Cationic polyacrylamide, on the other hand, is often employed as a coagulant in water treatment, where it destabilizes the negatively charged particles and allows them to clump together for easier removal.

 

3. Compatibility: Anionic polyacrylamide is compatible with other anionic substances and has good performance when used alongside other anionic flocculants. It maintains its charge stability and effectiveness in the presence of anions. Conversely, cationic polyacrylamide works well with cationic substances and performs optimally under cationic conditions.

 

4. Environmental considerations: The choice between anionic and cationic polyacrylamide may also depend on environmental considerations. In some cases, anionic polyacrylamide may have a lower environmental impact because the negatively charged flocs formed have reduced potential toxicity to aquatic organisms. However, both types should be used with caution and according to environmental regulations.

 

5. Handling considerations: Due to their opposite charges, anionic and cationic polyacrylamide should be stored and handled separately to avoid undesired reactions or neutralization of their charged properties. Proper labeling and safe storage practices should be followed.

 

It's important to note that anionic and cationic polyacrylamide are just two of the many variants of polyacrylamide available, each with specific properties suitable for applications.

Examples Of The Diverse Applications Of PA6 Products

2024-11-21

Automotive parts: PA6 is also known as nylon 6, polyamide 6. It is often used for making engine covers, air intake manifolds, fuel tank components, door handles, and other interior and exterior parts of cars, trucks, and buses. PA6 can withstand high temperatures and pressure, as well as vibration and impact, without losing its strength or dimensional stability. PA6 can also reduce weight and noise compared to metal or thermoset counterparts.

Nylon 6 Natural Granules

Consumer goods: PA6 is found in many everyday items, such as toothbrushes, hair brushes, razors, kitchen utensils, sports equipment, and electronic devices. PA6 can provide a smooth surface, good grip, and resistance to chemicals and wear, ensuring a long-lasting and comfortable use. Nylon 6 Pellets can also be colored or textured to suit different designs and preferences.

Nylon 6 Natural Granules

Industrial components: PA6 is a common material for making gears, bearings, rollers, conveyor belts, pipes, valves, and other machinery parts. PA6 can offer low friction, low noise, and high load capacity, as well as resistance to oils, greases, and acids. Polyamide 6 chips can also tolerate high-speed and high-precision operations, potentially replacing metal or ceramic materials that are heavier and costlier.

What Are the Raw Materials of Polyamide 6?

2024-11-21

Polyamide 6, also known as Nylon 6, is a versatile thermoplastic material widely used in industries ranging from automotive and electronics to textiles and consumer goods. But what exactly are the raw materials that go into making Polyamide 6, and why is it such a popular choice? Understanding the raw material composition of Polyamide 6 can shed light on its exceptional performance characteristics, such as high strength, durability, and resistance to wear and heat.

The Primary Raw Material: Caprolactam

The production of Polyamide 6 begins with caprolactam, a cyclic amide that serves as the core raw material. Caprolactam undergoes a polymerization process, where the individual molecules link together to form long polymer chains, creating the synthetic polymer known as Polyamide 6. Once polymerized, the resulting product can be processed into various forms, such as polyamide 6 resin, polyamide 6 granules, or polyamide 6 pellets, depending on the intended application.

Polyamide 6 Resin, Granules, and Pellets

The transformation of caprolactam into Polyamide 6 involves several steps, and the final material is usually processed into polyamide 6 pellets, polyamide 6 granules, or polyamide 6 resin. These forms are the building blocks for manufacturing a wide range of products.

  • Polyamide 6 resin is typically the raw, unprocessed material that is used to create granules or pellets. It can be further modified or blended with additives depending on specific performance requirements.
  • Polyamide 6 granules are slightly larger than pellets and are often used in applications where a uniform, controlled melting process is essential for optimal performance.
  • Polyamide 6 pellets are smaller, uniform granules that are easy to transport and handle, making them the most commonly used form for injection molding and extrusion processes.

The specific form used will depend on the application, but all three types—pellets, granules, and resin—are integral to creating the high-performance components Polyamide 6 is known for.

 

High Viscosity Nylon 6 Granules

 

Why Polyamide 6 Is a Preferred Choice

Polyamide 6 is chosen for its excellent combination of properties, such as high tensile strength, resistance to abrasion, and thermal stability. It is used in automotive parts, electrical components, and textiles because it offers a high degree of flexibility, chemical resistance, and dimensional stability. The versatility of Polyamide 6 makes it a go-to material for manufacturers looking to produce durable, high-quality products.

Bravo-Han Engineering Plastic Pellets: High Quality and Exceptional Service

When it comes to sourcing polyamide 6 pellets for your manufacturing needs, Bravo-Han Engineering Plastic Pellets stands out as a reliable supplier. We pride ourselves not only on the high quality of our polyamide 6 resin and pellets but also on our exceptional customer service.

Our polyamide 6 granules are produced to meet the highest standards, ensuring consistency and performance across every batch. With Bravo-Han, you can expect fast delivery times, customized solutions to meet your specific requirements, and excellent technical support from our team of experts. Whether you are in need of polyamide 6 pellets for automotive, electronics, or industrial applications, Bravo-Han provides the materials you need, backed by unparalleled service.

In summary, the raw materials of Polyamide 6, such as caprolactam, are carefully transformed into polyamide 6 resin, polyamide 6 granules, and polyamide 6 pellets through a complex and precise process. By choosing Bravo-Han Engineering Plastic Pellets, you not only receive premium materials but also benefit from our customer-centric approach that ensures your success. Reach out today to see how we can support your next project!

What are the preparation processes of polyacrylamide?

2024-11-20

Polyacrylamide (PAM) can be prepared via different methods, depending on the desired application and the desired properties of the polymer. Here are two common methods for the preparation of polyacrylamide:

 

1. Free Radical Polymerization:

   - Monomer Selection: Acrylamide (CH2=CHCONH2) is typically used as the main monomer for polyacrylamide synthesis.

   - Initiator Selection: Free radical initiators, such as ammonium persulfate (APS) or potassium persulfate (KPS), are commonly used to initiate the polymerization reaction.

   - Crosslinking Agent (Optional): If a crosslinked polyacrylamide hydrogel is desired, a crosslinking agent such as N,N'-methylenebisacrylamide (BIS) can be added to the monomer solution in a controlled amount.

   - Polymerization Process: Typically, the monomer, initiator, and crosslinking agent (if applicable) are dissolved in an appropriate solvent, such as water, and then subjected to polymerization. This can be done by heating the solution under controlled conditions or by using a suitable catalyst.

   - Purification and Drying: After the polymerization is complete, the resulting polyacrylamide can be purified and dried to obtain the final product.

 

2. Solution Polymerization:

   - Monomer Dissolution: Acrylamide monomer is dissolved in a suitable solvent, such as water, to form a monomer solution.

   - Initiator Addition: An initiator, such as APS or KPS, is added to the monomer solution.

   - Polymerization Process: The monomer solution is then heated under controlled conditions to initiate the polymerization reaction. This typically involves maintaining the temperature at a specific range for a certain duration.

   - Purification and Drying: The resulting polyacrylamide solution is often subjected to purification steps, such as filtration or precipitation, to remove impurities. Finally, the purified polyacrylamide can be dried to obtain the desired product.

 

Both of these methods can be used to prepare linear or crosslinked polyacrylamide depending on the specific requirements of the application. It is important to note that handling acrylamide and its monomers should be done with caution, as it is a toxic compound. Proper safety measures and guidelines must be followed during the process.

How Can PDCPD New Materials Improve Your Product Durability?

2024-11-13

PDCPD (Polydicyclopentadiene) is a type of thermoset plastic that offers excellent mechanical properties, high impact resistance, and exceptional durability. It is widely used in the production of various components across industries. The unique characteristics of PDCPD can significantly enhance the durability and overall performance of your.

One of the key factors contributing to the enhanced durability of products made from PDCPD is its resistance to corrosion, chemicals, and UV radiation. PDCPD components can withstand harsh environmental conditions, making them suitable for outdoor applications or industries where exposure to chemicals and other corrosive substances is common.

Furthermore, PDCPD exhibits remarkable dimensional stability, meaning it maintains its shape and size under different temperature variations. This property ensures that PDCPD components retain their structural integrity, even in extreme conditions.

In addition to its physical properties, PDCPD is highly moldable. This allows for complex and precise designs, resulting in components with tight tolerances and excellent surface finish. The moldability of PDCPD not only enhances the aesthetic appeal of your products but also contributes to their long-lasting durability.

Overall, incorporating PDCPD new materials into your product manufacturing process can significantly improve the durability, longevity, and performance of your final products. Whether it is for automotive, construction, or other industrial applications, PDCPD offers a reliable solution to enhance the durability of your components.

 

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What Are the Environmental Benefits of Using PDCPD New Materials?

2024-11-13

Using PDCPD (Polydicyclopentadiene) as a new material offers several environmental benefits compared to traditional materials. Some of the key environmental advantages include:

  1. Lower Carbon Footprint: PDCPD production typically involves lower energy consumption and fewer greenhouse gas emissions compared to other plastics. Carbon emissions are reduced during the production process, making it a more eco-friendly option.

  2. Reduced Waste: PDCPD is a thermosetting plastic, meaning it can be molded and shaped into final products with minimal material waste. This characteristic allows for efficient use of the material and reduces the amount of discarded or leftover material in the manufacturing process.

  3. Recyclability: PDCPD is recyclable through various processes, including mechanical recycling and pyrolysis. By recycling PDCPD waste or end-of-life products, valuable resources can be recovered. This contributes to the circular economy and reduces the demand for virgin materials.

  4. Enhanced Durability: PDCPD exhibits excellent impact resistance, chemical resistance, and dimensional stability. These properties make finished products more durable and long-lasting, reducing the need for frequent replacements. Increased product lifespan helps conserve resources and reduces waste generation.

  5. Lightweight Construction: PDCPD offers a high strength-to-weight ratio, which makes it an attractive alternative to heavier materials such as metals. Its lightweight nature can contribute to fuel efficiency in industries like automotive and transportation, reducing energy consumption and carbon emissions.

  6. Corrosion Resistance: PDCPD is resistant to corrosion from chemicals, water, and other environmental factors. This resistance reduces the need for protective coatings or treatments, minimizing the use of chemical agents that can harm the environment during application and disposal.

  7. Reduced VOC Emissions: PDCPD does not typically contain harmful volatile organic compounds (VOCs) that can contribute to air pollution and health hazards. It can be used in applications where low VOC emissions are crucial, such as in the production of automotive components and consumer goods.

    In summary, using PDCPD as a new material offers environmental benefits such as lower carbon footprint, reduced waste generation, recyclability, enhanced durability, lightweight construction, corrosion resistance, and reduced VOC emissions. These advantages contribute to a more sustainable and eco-friendly approach to material usage and processes.

Advanced Styrene NPMI MAH Copolymer for Enhanced Plastic Stability

2024-11-13

In today's fast-paced industrial landscape, the demand for advanced materials that offer superior performance and durability is ever-growing. Plastics, particularly in sectors such as automotive, electronics, and construction, are expected to meet stringent stability, heat resistance, and processing requirements. One such solution that stands out is the Styrene-NPMI-MAH Copolymer manufactured by Yangchen Tech, a cutting-edge material known for its exceptional performance as a heat-resistant modifier for ABS (Acrylonitrile Butadiene Styrene) and PVC (Polyvinyl Chloride) plastics.

 

In this blog, we’ll delve into the unique properties and benefits of Styrene-NPMI-MAH Copolymer and explore how it contributes to enhancing the stability and performance of plastics.

 

Styrene-NPMI-MAH Copolymer

 

Basic Infomation of Styrene-NPMI-MAH Copolymer manufactured by Yangchen Tech

 

Test Item Test Standards Test Data
Molecular weight and distribution GPC Mw=12~16*104.PDI=2.0~3.0
Glass transition temperature/℃ DSC 160~210℃(Adjustable)
Initial decomposition temperature/℃ TGA 395-405℃
Density  ASTM-D792 1.00~1.15g/cm3
Appearance NG Off-white powder

 

1. Exceptional Heat Resistance

 

Plastics, especially ABS, are widely used in industries where mechanical performance and heat resistance are crucial. However, standard ABS has limitations when it comes to high-temperature applications. The introduction of Styrene-NPMI-MAH Copolymer as a heat-resistant modifier effectively addresses this issue. The maleic anhydride (MAH) and N-phenylmaleimide (NPMI) components contribute to the copolymer's superior thermal stability, allowing modified ABS to maintain its mechanical properties even at elevated temperatures. This enhanced heat resistance makes it ideal for applications such as automotive parts, electrical enclosures, and household appliances.

 

2. Improved Adhesion and Compatibility

 

One of the standout features of the Styrene-NPMI-MAH Copolymer is its ability to improve compatibility between different polymer matrices. The maleic anhydride groups present in the copolymer exhibit excellent adhesion properties, making it suitable for blending with other plastics like PVC and even elastomers. This compatibility leads to improved interfacial adhesion, which is critical in composite materials where different polymers are combined to achieve a desired balance of properties. The result is a more robust, cohesive material with enhanced mechanical stability.

 

3. Enhanced Chemical Resistance

 

In industries where plastics are exposed to harsh chemicals or environmental stressors, chemical resistance is a critical factor. The Styrene-NPMI-MAH Copolymer contributes to improved resistance against chemicals and solvents, ensuring that the modified plastic retains its integrity and performance over time. This feature is particularly beneficial for applications in chemical processing plants, automotive fuel systems, and construction materials where long-term exposure to chemicals can degrade standard plastic materials.

 

4. Superior Mechanical Strength

 

In addition to heat and chemical resistance, the Styrene-NPMI-MAH Copolymer enhances the mechanical properties of plastics. It improves the tensile strength, impact resistance, and dimensional stability of modified ABS and PVC, making them suitable for applications where durability and structural integrity are paramount. Products made from these modified plastics can withstand mechanical stresses without compromising performance, which is especially important in high-impact applications such as automotive components and industrial equipment.

 

5. Versatile Applications

 

Thanks to its multifunctional properties, Styrene-NPMI-MAH Copolymer finds applications across a wide range of industries. Some key areas include:

 

- Automotive: Used in parts that require heat resistance and mechanical strength, such as under-the-hood components and interior fittings.

- Electronics: Ideal for electronic housings that need high thermal stability and chemical resistance.

- Construction: Applied in durable building materials, where both heat resistance and long-term stability are critical.

- Appliances: Utilized in manufacturing household appliances that face thermal cycling and mechanical wear.

 

As industries continue to demand more durable, heat-resistant, and chemically stable materials, the Styrene-NPMI-MAH Copolymer stands out as a premium solution. Its ability to enhance the thermal, chemical, and mechanical properties of plastics such as ABS and PVC makes it an indispensable material in numerous applications. From automotive parts to electronics and construction, this copolymer significantly improves plastic stability, ensuring products that are not only longer-lasting but also capable of withstanding demanding conditions.

 

If you're looking to enhance the performance of your plastic products, consider the advanced properties of Styrene-NPMI-MAH Copolymer manufactured by Yangchen Tech for unmatched stability and reliability.

Applications of Styrene-N-Phenylmaleimide-Maleic anhydride Copolymer in improving plastic performance.

2024-11-13

Styrene-N-Phenylmaleimide-Maleic anhydride copolymer (SMA)  manufactured by Yangcen Tech is a versatile material used as a heat-resistant modifier to enhance the performance of various plastics. Here are some of its key applications:

 

 

Styrene-N-Phenylmaleimide-Maleic anhydride copolymer

 

Basic Physical Properties 

 

N-phenylmaleimide terpolymer (NSM 1 #)

Test Item

Test Standard

Test Data

Molecular weight and distribution

GPC

Mw=60-110KPd=2.3-2.9

Glass transition temperature/℃

DSC

197.3-198.2℃

Initial decomposition temperature/℃

TGA

395-405℃

Density

ASTM-D792

1.18-1.30g/cm3

Apparent

——

white or light yellow powders

 

 

NSM Heat Resistant Agent Modification Data

 

 

 

Component composites

Vicat softening temperature/℃

(Yangchen Tech's Products )

Vicat softening temperature/℃

( JAPAN Products)

NSM/ABS=0:100

103.7

103.7

NSM/ABS =10:90

111.3

111.5

NSM/ABS =20:80

118.5

116.9

NSM/ABS =30:70

126.2

125.3

 

1. Improvement of Thermal Stability:

  • Enhanced Heat Resistance: SMA copolymers significantly improve the heat resistance of plastics like ABS (Acrylonitrile Butadiene Styrene) and polystyrene. This makes the modified plastics suitable for applications requiring higher operating temperatures without deforming or losing mechanical properties.
  • Reduced Thermal Degradation: The copolymer structure, especially the phenylmaleimide component, enhances the material's resistance to thermal oxidation, reducing degradation under high temperatures.

 

2. Mechanical Property Enhancement:

  • Increased Rigidity: SMA copolymers improve the stiffness and rigidity of plastic materials, making them suitable for applications where dimensional stability is crucial under heat.
  • Enhanced Surface Hardness: The addition of SMA copolymer can lead to better surface hardness, making the plastic more resistant to scratches and wear, which is important for applications like automotive parts and electronic housings.

 

3. Improved Processability:

  • Better Flow Properties: The copolymer can improve the melt flow characteristics of plastics, which is beneficial during the injection molding process. This leads to better mold filling, reduced cycle times, and improved surface finish of the final product.
  • Compatibility with Other Polymers: SMA copolymers are compatible with a wide range of other polymers, allowing for the modification of various plastic blends without negatively affecting their processability.

 

4. Flame Retardancy:

  • Improved Flame Resistance: The copolymer enhances the flame retardancy of plastics, making them more suitable for use in electrical and electronic applications, automotive interiors, and other environments where fire safety is a concern.

 

5. Chemical Resistance:

  • Enhanced Resistance to Chemicals: Plastics modified with SMA copolymer exhibit better resistance to chemicals such as acids, alkalis, and solvents. This makes them more suitable for use in harsh chemical environments or in applications like chemical storage containers.

 

6. Applications in Automotive Industry:

  • Under-the-Hood Components: SMA-modified plastics are used in automotive parts that are exposed to high temperatures, such as under-the-hood components, where they provide the necessary thermal stability and mechanical strength.
  • Interior and Exterior Parts: The copolymer's ability to improve surface hardness and thermal stability makes it ideal for automotive interior and exterior applications, such as dashboards, panels, and trims.

 

7. Applications in Electronics:

  • Electronic Housings: The enhanced heat resistance and mechanical properties of SMA-modified plastics make them suitable for use in electronic housings, where they protect sensitive components from heat and mechanical stress.
  • Connectors and Sockets: The improved thermal stability and rigidity are beneficial in the production of connectors, sockets, and other electronic components that must maintain their performance under elevated temperatures.

 

Styrene-N-Phenylmaleimide-Maleic anhydride copolymer manufactured by Yangchen Tech is an effective heat-resistant modifier that enhances the performance of plastics in demanding applications across various industries. Welcome Inquiry!

Enhancing PVC Performance with PVC Heat Resistant Modifier from Yangchen Tech

2024-11-13

PVC is one of the most versatile and widely used plastics in the world, known for its durability, chemical resistance, and affordability. However, like many polymers, PVC's performance can be limited by its sensitivity to heat, which can affect its stability, processing properties, and overall durability in high-temperature applications. This is where heat-resistant modifiers, such as PVC heat-resistant modifier, come into play.

 

What is PVC Heat Resistant Modifier Powder?

 

PVC heat resistant modifier powder

 

 

Technical Indicators

 

 

PVC heat resistant modifier(NSA)

No.

Test items

Indicator requirements

1

Appearance

White powder

2

Glass transition temp.

130~160

3

Initial decomposition temp.,℃

395~405

4

Molecular weight and distribution(×104 

Mw=12~16

5

VOC content(105℃,30MIN)

≤0.5%

6

Vicat softening point temperature

110℃

7

Density,ghttps://www.yangchentech.comcm3

1.0~1.15

 

Applications of PVC Heat Resistant Modifier

 

  1. Enhanced Temperature Resistance

The PVC heat-resistant modifier powder, manufactured by Yangchen Tech, is a specialized copolymer developed through the copolymerization of N-phenylpyrazialimide monomer with other high-performance monomers. This innovative formulation gives PVC a uniform glass transition temperature and high compatibility with PVC and other resins, making it an ideal additive for improving the heat resistance and overall performance of these materials.