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  • What does polyvinyl alcohol do to the body?
    Jan 20, 2020
    Polyvinyl alcohol (PVA) is generally considered safe for use in various applications and has low toxicity. When consumed orally, PVA is not absorbed by the body and passes through the digestive system without being metabolized. It is essentially inert and does not have any nutritional value.   Since PVA is water-soluble, excessive ingestion of large amounts could potentially cause gastrointestinal discomfort, such as bloating or diarrhea. However, it is worth noting that PVA is not intended for consumption and is not a food ingredient.   In medical and pharmaceutical applications, Polyvinyl alcohol is used in various forms, including eye drops, contact lenses, and drug delivery systems. In these cases, PVA is designed to be safe for specific uses and is tested and regulated accordingly.   As with any substance, it is important to use PVA in accordance with its intended purpose and follow safety guidelines provided by manufacturers. If you have specific concerns or questions about the use of PVA or any other substance, it is recommended to consult with a healthcare professional.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com   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.
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  • The difference between polyvinyl acetate and polyvinyl alcohol
    Jan 17, 2020
    Polyvinyl acetate(C4H6O2)n and polyvinyl alcohol[CH2CH(OH)]n are both polymers derived from vinyl acetate. However, they have distinct properties and applications due to their different chemical structures and properties.                                                                 Polyvinyl acetate is a thermoplastic polymer composed of repeating vinyl acetate units. It is commonly known as white glue or wood glue and is widely used as an adhesive in various applications. Polyvinyl acetate is known for its excellent bonding properties, fast drying time, and strong adhesion to porous materials like wood and paper. It forms a flexible and transparent film when it dries, making it suitable for applications such as crafting, woodworking, and packaging.   Polyvinyl alcohol, on the other hand, is produced by the hydrolysis of polyvinyl acetate. This process replaces the acetate groups with alcohol groups, resulting in a water-soluble polymer. Polyvinyl alcohol is known for its high solubility in water and biodegradability, making it an environmentally friendly material. It is used in various industries for its adhesive, film-forming, and emulsifying properties.   Polyvinyl alcohol finds applications in the textile industry for sizing yarns, in the paper industry as a surface coating agent and binder, and in the production of water-soluble packaging materials. Due to its biodegradability, Polyvinyl alcohol is also used in applications such as agricultural films, detergents, and water treatment.   In summary, polyvinyl acetate is a thermoplastic adhesive with excellent bonding properties, while polyvinyl alcohol is a water-soluble polymer known for its biodegradability and film-forming characteristics.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com 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.
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  • Can polyvinyl alcohol be mixed with polyethylene wax emulsion?
    Jan 15, 2020
    Polyethylene wax emulsion and polyvinyl alcohol (PVA) are commonly used water-based additives in the paper industry. Can they be added together and used in the paper system?   Polyvinyl Alcohol (PVA): An organic compound, white plate-like, flocculent, or powdery solid with no odor. PVA has strong adhesion to cellulose and exhibits good film-forming properties, resulting in high film strength. In the paper industry, PVA is primarily used as a surface sizing agent, pigment binder, and refining machine additive. It improves the paper's abrasion resistance, fold resistance, tear strength, gloss, smoothness, and print adaptability.   Polyethylene wax emulsion is a non-ionic emulsion that is tasteless, non-corrosive, acid-resistant, alkali-resistant, hard water-resistant, highly water-soluble, and exhibits good stability. It can be diluted with water in any proportion without layering, creaming, or agglomerating. The emulsion has a long shelf life, high solid content, and good dispersibility.   Experimental evidence has shown that there is generally no chemical reaction between polyethylene wax emulsion and polyvinyl alcohol (PVA). PVA solutions are highly stable and belong to water-soluble inert polymers, which do not interact with most solvents except boronic acid compounds, and they do not react with almost all non-polar waxes or neutral organic compounds.   Therefore, in the paper system, polyethylene wax emulsion can be mixed and used with polyvinyl alcohol, and the performance is also very stable.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com 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.
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  • What is VAM material?
    Jan 13, 2020
    VAM stands for Vinyl Acetate Monomer. It is a key raw material used in the production of various polymers and copolymers. Vinyl acetate monomer is a clear liquid with a distinct odor. It is primarily derived from the reaction between acetylene and acetic acid.   VAM is widely used in the manufacturing of polyvinyl acetate emulsions, which find applications in adhesives, paints, coatings, and textiles. The copolymerization of VAM with other monomers, such as ethylene, creates ethylene-vinyl acetate (EVA) copolymers, which have excellent flexibility, adhesion properties, and low-temperature resistance. EVA is extensively used in various industries, including footwear, packaging, wire and cable insulation, and solar cell encapsulation, among others.   The versatility of VAM as a building block for different polymers and copolymers makes it a crucial material in the chemical industry. Its unique properties, such as good adhesion, film-forming capability, and chemical resistance, contribute to the wide range of applications it offers.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com 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.
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  • Is polyvinyl alcohol good for your skin?
    Jan 08, 2020
      Polyvinyl alcohol (PVA) is a synthetic polymer that is commonly used in various industries, including the cosmetics industry. It is known for its adhesive, film-forming, and emulsifying properties. While PVA can be found in some skincare products, its benefits for the skin are limited.   PVA does not possess inherent skincare benefits such as moisturization or anti-aging properties. However, it is often included in cosmetic formulations as a thickening or stabilizing agent. It can help create a smooth texture and enhance the spreadability of products on the skin.   Additionally, PVA is sometimes used in skincare masks and patches, where its film-forming properties create a barrier that can hold active ingredients against the skin, allowing for better absorption. This can be beneficial for certain targeted treatments, such as delivering hydrating or soothing ingredients to specific areas.   It's important to note that PVA is generally considered safe for topical use, but some individuals may be more sensitive to it than others. If you have sensitive skin or a history of allergic reactions, it's advisable to patch test products containing PVA before applying them to larger areas of the skin.   Overall, while polyvinyl alcohol can serve as a useful ingredient in cosmetic formulations, it does not offer significant direct benefits for the skin itself. The effectiveness of skincare products depends on the overall formulation, active ingredients, and their concentration, rather than a single ingredient like PVA.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com ElephChem Holding Limited, professional market expert in Polyvinyl Alcohol(PVA) and Vinyl Acetate–ethylene Copolymer Emulsion(VAE Emulsion) with strong recognition and excellent plant facilities of international standards.
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  • Is Polyvinyl Alcohol a form of plastic?
    Jan 03, 2020
    Polyvinyl alcohol (PVA) is technically considered a synthetic polymer rather than a plastic. While both plastics and PVA are derived from polymers, they have some differences in their properties and manufacturing processes.   Plastics are typically made from long chains of polymers that can be molded and shaped when heated. They often possess a range of mechanical properties, including flexibility, durability, and resistance to chemicals. Plastics are commonly used in various applications, such as packaging, construction, and consumer goods.   On the other hand, PVA is a water-soluble synthetic polymer derived from the polymerization of vinyl acetate. It is not as thermally stable or mechanically robust as most conventional plastics. PVA has unique properties, including excellent film-forming ability, adhesion, and biodegradability, which make it suitable for applications such as coatings, adhesives, and as a water-soluble packaging material in some cases.   While PVA and plastics both fall under the broader category of polymers, they have different characteristics and applications, with PVA being distinguished by its water solubility and specific properties.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com 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.
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  • Is Ethylene Vinyl Acetate(EVA) the same as Vinyl Acetate-Ethylene(VAE)
    Dec 30, 2019
    No, Ethylene Vinyl Acetate (EVA) is not the same as Vinyl Acetate-Ethylene (VAE). While both EVA and VAE are copolymers of ethylene and vinyl acetate, they have different structures and properties.   EVA is a copolymer of ethylene and vinyl acetate, where the vinyl acetate content typically ranges from 5% to 50% by weight. It is a flexible, rubbery material commonly used in various applications such as footwear, packaging, and solar cell encapsulation due to its excellent flexibility, low-temperature toughness, and UV resistance. VAE, on the other hand, refers to a different type of copolymer formed by the polymerization of vinyl acetate and ethylene. In VAE, the vinyl acetate content is generally higher than in EVA, typically ranging from 10% to 60% by weight. VAE is often used as a binder or adhesive in construction materials such as paints, coatings, adhesives, and textiles.   So, while both EVA and VAE are copolymers of ethylene and vinyl acetate, they have different compositions and applications.
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  • What is VAE made of?
    Dec 26, 2019
    VAE stands for Vinyl Acetate Ethylene emulsion. It is a type of emulsion polymer made by the copolymerization of vinyl acetate (VA) and ethylene monomers. The resulting copolymer is dispersed in water to form an emulsion.   The composition of VAE emulsion typically consists of: 1. Vinyl Acetate (VA): This monomer, also known as vinyl ethanoate, provides the adhesive and film-forming properties to the emulsion. 2. Ethylene: Ethylene is a gaseous monomer that is copolymerized with vinyl acetate to improve the strength, flexibility, and resistance properties of the resulting polymer. 3. Emulsifiers: Emulsifiers are used to stabilize the emulsion and prevent the coagulation or separation of the polymer particles in water. They help in the formation of a stable, uniform emulsion. 4. Water: Water is the main component of the emulsion, serving as the dispersion medium for the polymer particles.   ElephChem VAE emulsion is commonly used in various applications such as adhesives, coatings, textiles, paper coatings, and construction materials. Its properties, such as good adhesion, flexibility, and water resistance, make it suitable for a wide range of applications.
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  • What is VAE emulsion used for?
    Dec 17, 2019
    VAE emulsion refers to a vinyl acetate ethylene copolymer emulsion. It is a type of adhesive or binder that is widely used in various industries. Here are some common applications of VAE emulsion:   1.Adhesives: VAE emulsion is often used as a component in adhesives for bonding different materials together, such as wood, paper, textiles, and plastics. It provides good adhesion, flexibility, and water resistance.   2.Construction: VAE emulsion is used in the construction industry for applications such as tile adhesives, cement modifiers, and primers. It improves the bonding strength and durability of cementitious materials.   3.Paints and Coatings: VAE emulsion can be found in water-based paints and coatings. It acts as a binder, providing film formation, adhesion to the surface, and stability to the paint formulation.   4.Textiles: VAE emulsion is used in textile printing, especially for pigment printing. It helps to bind the pigment particles to the fabric, providing excellent color fastness and durability.   5.Paper and Packaging: VAE emulsion is utilized in paper coatings and packaging adhesives. It improves the surface smoothness, printability, and strength of paper products.   6.Nonwovens: VAE emulsion is used in the production of nonwoven fabrics for applications like diapers, wipes, and medical products. It acts as a binder to enhance strength and integrity.   Overall, VAE emulsion is a versatile material with various benefits, including good adhesion, flexibility, water resistance, and film-forming properties. Its applications span across industries where adhesion, bonding, and coating properties are required.
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  • Is PVA harmful to humans
    Dec 13, 2019
    Polyvinyl alcohol (PVA) is generally considered safe for humans when used as intended. It is a water-soluble polymer derived from the hydrolysis of polyvinyl acetate (PVAc) and has various applications in industries such as adhesives, coatings, textiles, and packaging.   PVA is non-toxic and does not cause any known harm to human health. It is widely used in the food industry as a thickener, stabilizer, and film-forming agent. However, it's important to note that specific formulations and additives used in PVA products might affect their safety, so it is always recommended to follow the manufacturer's instructions and guidelines when using any PVA-based products.   As with any substance, direct ingestion or excessive inhalation of PVA powder or prolonged and repeated skin contact could potentially cause irritation or allergic reactions in some individuals. It's advisable to handle PVA materials with care, follow good hygiene practices, and use appropriate personal protective equipment when necessary. If you have any specific concerns or questions about a particular PVA product or its safety, it's best to consult the PVA manufacturer or seek advice from relevant regulatory authorities or health professionals.    
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  • Polyvinyl alcohol (PVA) industry chain
    Dec 10, 2019
    The main raw material of polyvinyl alcohol (PVA) is vinyl acetate. PVA is made from vinyl acetate by polymerization and alcoholysis. Downstream, it is used to manufacture polyvinyl acetal, gasoline-resistant pipe and vinylon synthetic fiber, fabric treatment agent, emulsifier, paper coating, adhesive, etc., widely used in paper making, textile and construction fields.   Industrial chain diagram:
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