EVA film is a thermosetting and sticky film, mainly used in the middle of laminated glass. It has the characteristics of high transparency, high adhesion, good durability and easy storage. High transparency allows light to penetrate better, reducing light energy loss and improving photoelectric conversion efficiency. High adhesion, able to firmly bond various materials, effectively ensuring the stability between components. Good durability, able to resist high temperature, moisture, ultraviolet rays and other environmental factors, ensuring long-term use. Easy to store, it can be stored at room temperature and is not affected by humidity and water absorption. Low melting point, easy to flow, suitable for lamination process of various glass, such as patterned glass, tempered glass, curved glass, etc. Strong sound insulation effect. Compared with PVB film, EVA film has stronger sound insulation effect, especially for high-frequency sound. Due to various excellent properties, EVA film is widely used in current components and various optical products, especially playing an important role in the packaging of solar photovoltaic modules.Solar photovoltaic module packaging, EVA film is used to fix solar cells and provide insulation protection, optical coupling, and provide moderate mechanical strength and heat conduction paths. In recent years, with the rise and development of the global photovoltaic industry, the market demand for EVA has increased year by year, which has broad market prospects. There is also great room for improvement in the domestic EVA film market. Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com ElephChem Holding Limited, professional market expert in
Properties and applications of EVA film
PVA dissolution methods
PVA 1. Temperature rise dissolution method The temperature rise dissolution method is one of the most commonly used methods for dissolving PVA. Add PVA powder 2. Dissolution by auxiliary agent In addition to directly adding PVA to water for dissolution, the solubility and stability of PVA can also be improved by adding auxiliary agents. Common auxiliary agents include acetone, methanol, ethanol, phenol, etc. These auxiliary agents can form hydrogen bonds or other interaction forces with PVA, thereby improving solubility. The addition of auxiliary agents can also shorten the dissolution time of PVA. 3. Slow cooling and dissolution The slow cooling method is a special PVA dissolution method, which is suitable for the preparation of polymers, micro-nano particles, films, fibers and other materials. The basic principle of the slow cooling method is to add PVA powder into water, heat it to dissolve it, and then slowly cool it down to make the PVA molecules self-assemble to form nanoparticles, nanofibers or films. The slow cooling rate has an important influence on the self-assembly process of PVA. Generally speaking, the slower the slow cooling rate, the more complete the structure of the PVA self-assembly. The slow cooling method is mainly suitable for the preparation of micro-nano materials. 4. Gas phase dissolution The gas phase method is a relatively new PVA dissolution method. In this method, the PVA solid enters the atmosphere through the dissolution hopper. By controlling the temperature, pressure and atmosphere composition, the PVA solid is directly evaporated into gaseous molecules, and then transported to other equipment through a transmission pipe for reaction or solidification to form a corresponding block. Unlike the traditional dissolution method, the gas phase method can prevent the PVA molecules from being affected by water decomposition, thereby maintaining the integrity and quality of the material. Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com ElephChem Holding Limited, professional market expert in Polyvinyl Alcohol
PVB interlayer film
PVB Safety glass produced using all-resin PVB film has superior optical properties, higher light transmittance and lower haze, making the finished glass more transparent. For example, if multiple layers of PVB are used to make laminated glass, the advantages of all-resin PVB will be It will be more obvious. Secondly, the yellowing value of the film is very low and the film is whiter, so that the finished glass will not turn yellow and is suitable for ultra-white laminated glass. The all-resin film is more durable and can withstand the sun and rain. It will not cause degumming, bubbles, aging and other undesirable phenomena after long-term use. PVB interlayer film is widely used in construction, automobile, photovoltaic and other industries. PVB interlayer films produced with special formulas are also widely used in aerospace, military and high-tech industries, such as aircraft, aerospace products, military instruments, solar cells and solar receivers. It is currently the best adhesive material for manufacturing laminated and safety glass in the world. It is also widely used in construction fields such as building curtain walls, tents, showcases, bank counters, prison viewing windows, steel furnace screens and various bulletproof glass. Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com ElephChem Holding Limited, professional market expert in
The role of redispersible emulsion powder in dry mixed mortar
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 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 Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com ElephChem Holding Limited, professional market expert in
What are the main differences between anionic and cationic polyacrylamide?
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
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.
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.
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?
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.
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?
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?
PDCPD 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 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 Want to know more, please click:http:https://www.cattelanpdcpd.comhttps://www.cattelanpdcpd.com www.cattelanpdcpd.com