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The global consumption structure of polyvinyl alcohol (PVA) is: polymerization assistants account for about 24%, polyvinyl butyral (PVB) accounts for about 15%, adhesives account for about 14%, textile pulp accounts for about 14%, and paper pulp Materials and coatings account for about 10%, and others 23%.   The consumption structure of polyvinyl alcohol (PVA) in China is: polymerization assistants account for about 38%, fabric slurries account for about 20%, adhesives account for about 12%, vinylon fibers account for about 11%, papermaking slurries and coatings account for about 8% %, architectural coatings account for about 5%, and others 6%. Polymerization aids, fabric sizing and adhesives are the main downstream consumer markets for polyvinyl alcohol.   In the first half of 2023, the supply and demand of China PVA products were in a weak balance, and prices were running at low levels. The advantages of China PVA variety in supporting a stable market share. With the introduction of new technologies, new processes, and new products, the continuous expansion of new application fields, and the gradual replacement of imported products, new development opportunities have been brought to the domestic polyvinyl alcohol and vinylon industry. However, as various companies increase their export efforts and adopt fierce competition at the low end, and with the adjustment of China's industrial structure, rising wages and other costs, and high environmental protection requirements, some downstream industries, such as the labor-intensive textile industry, have relocated to Southeast Asia, making domestic Demand growth momentum has slowed, foreign consumption has increased, and exports have increased. After more than ten years of competitive integration and optimization, the industry is showing a new pattern of optimized production capacity, increased concentration, stable market varieties, slow growth in market demand, high technical barriers, moderate competition, and innovation-driven development, reaching a new balance between supply and demand. Develop into a benign new business format.   With the rapid development of PVA downstream industries such as PVA optical film, PVB film, polymerization additives, soil improvement, paper adhesives, ceramic adhesives, environmental protection, medicine and cosmetics, the demand for special PVA products is very strong, and Anhui The special PVA products of leading enterprises in the industry represented by ElephChem have developed rapidly, and they have increased their research and development efforts on PVA fiber, PVB resin, PVB film, PVA optical film, redispersible rubber powder and other products. Special varieties of PVA and The production technology of downstream new material products is becoming increasingly mature, filling many gaps in the country. New PVA products are gradually being put on the market, and their market share is also constantly increasing. Common varieties have basically achieved import substitution, and the downstream consumption structure of the domestic PVA industry has been further expanded.

China is one of the world's largest PVA production countries, since 1965 Beijing Oriental Petrochemical Co., LTD. (the former Beijing Organic Chemical plant) from Japan to introduce technology to build China's first set of calcium carbide acetylene method (from calcium carbide acetylene method to petroleum ethylene method in 1995) PVA production plant, China's PVA production has developed steadily.   According to statistics, in 2015, China's polyvinyl alcohol (PVA) production was about 700,000 tons, increasing to 802,000 tons in 2022, with a compound annual growth rate of 1.96% during the period. In terms of demand, the apparent consumption of PVA in China in 2022 was 639,600 tons, an increase of 2.16%. Common types such as PVA 2488, PVA 2088 and PVA 0588 are in great demand in various fields.   Output and consumption

Polyvinyl alcohol (PVA) is a water-soluble polymer material that is widely used. The hydrogel prepared from it is a gel with water as the medium. It is a polymer network system that can maintain a certain shape and have a series of unique properties. In addition to the properties of general gels, PVA hydrogels also have the advantages of low toxicity, good mechanical properties (high elastic modulus and high mechanical strength), large water absorption and good biocompatibility.   They have a wide range of applications in the biomedical field. application. For example: drug sustained-release carriers and microcapsules; application in wound dressings; artificial organs and tissues; used in orthopedic surgery to repair or replace articular cartilage.   Preparation method of PVA hydrogel Physical cross-linking method: repeated freezing method, partial freezing and dehydration method. Chemical cross-linking method: chemical reagent cross-linking, radiation cross-linking.   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.

The widespread application of polyvinyl alcohol in various industries benefits from its many excellent properties, such as:   1. Solubility: PVA powder can be dissolved in water. The PVA resin with an alcoholysis degree of less than 95% can be dissolved in room temperature water, and another one with an alcoholysis degree of more than 99.5% can only be dissolved in hot water above 95℃.   2. Thermal stability: Polyvinyl alcohol softens when heated and does not change significantly below 40℃. Glass transition temperature: 75~85℃. It slowly changes color and becomes brittle when heated to above 100℃. Above 160℃, long-term heating will gradually color, dehydrate, etherify, and lose solubility; above 220℃, it will decompose to generate water, acetic acid, acetaldehyde, and crotonaldehyde; above 250℃, it will become containing conjugated double bonds polymer.   3. Chemical resistance: PVA is almost unaffected by weak acids, weak bases or organic solvents, and has high oil resistance.   4. Storage stability: PVA is a low-viscosity polymer, and its aqueous solution is very stable at room temperature. The aqueous solution will not deteriorate during storage.   5. Film-forming properties: Due to the high adhesion between PVA molecules, PVA is easy to form films. The formed film is colorless and transparent, has good mechanical strength, has a smooth surface without being sticky, and has good solvent resistance. The molecular film has good light transmittance, high moisture permeability, is uncharged, does not absorb dust, and has good printability.   6. Chemical properties: PVA is almost unaffected by weak acids, weak bases or organic solvents, and has high oil resistance. It can be regarded as a linear polymer with secondary hydroxyl groups. The hydroxyl group in the molecule has high activity and can carry out typical chemical reactions of low alcohols, such as esterification, etherification, acetalization, etc., and can also react with many inorganic compounds or organic compounds.   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.

The formulation and production process of vae emulsion waterproofing materials involve a variety of ingredients and steps.   Formulation: The main component of VAE emulsion is vinyl acetate copolymer, which provides adhesiveness, stability and elasticity, as well as emulsifier, defoamer, stabilizer and auxiliary agent. These ingredients help to form a stable emulsion state, increase its adhesion and durability, and depending on the specific application needs, additives such as thickeners and preservatives may be added.   Production process: The production process includes raw material preparation, mixing, heating, emulsification, pH adjustment and adding additives. First of all, the ethylene acetate copolymer and other raw materials are added to the reaction kettle, adding an appropriate amount of water to stir and mix, and then heating to a certain temperature to start the polymerization reaction, adding emulsifier through stirring and high-speed shear to form a stable emulsion, adjust the pH value according to the need, and finally add additives, packaging and sealing.    In addition, there are other ingredients such as polyurethane emulsion, thickener, dispersant, etc., used to improve the bond strength, durability, softness, wrinkle resistance and so on. These ingredients are widely used in different fields such as building materials, textile printing and dyeing, paper industry, coatings industry and adhesives.   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.   Related Products: VAE CW 40-705 VAE CW 40-707 VAE CW FH-Ⅱ

  Polyvinyl alcohol(PVA) plays several important roles in cosmetics, including:   Moisturizing effect. Pva absorbs moisture from the air to help keep skin hydrated and avoid dryness.   Lubricant. It reduces the friction between cosmetics and the skin, making cosmetics easier to apply.   Thickening agent. PVA can increase the viscosity of cosmetics, making it easier to adhere to the skin and extend the action time of cosmetics.   Emulsifier. The oily and water-based ingredients in cosmetics are effectively mixed together to form an emulsion-like product.   PVA also has a certain purification effect, can effectively clean the skin, while promoting the absorption of other beneficial ingredients, increase the permeability and effect of cosmetics. Pva is also used as a binder in cosmetics to help maintain product stability and extend shelf life. In general, the application of PVA in cosmetics aims to provide multiple effects such as moisturizing, lubricating, thickening, emulsifying and purifying, making cosmetics more suitable for skin use, while extending the service life of products.   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.

The aqueous solution of PVA has extremely strong adhesion to materials containing cellulose (such as paper, cloth, wood, etc.) and has the advantage of being safe and non-toxic. It can be used for cardboard lamination, corrugated cardboard bonding and office glue. Kraft bags used for packaging heavy items such as cement, fertilizers, grain, etc. also use PVA as an adhesive.   Urea-formaldehyde resin and phenolic resin modified with PVA can be used as adhesives for laminates and artificial panels.   PVA aqueous solution (by adding appropriate fillers and additives) can also be widely used to prepare adhesives required for printing and binding paper tubes, cartons and other paper links.   PVA condenses with formaldehyde, butyraldehyde, glyoxal or other aldehydes under acid catalysis to produce polyvinyl acetals (such as PVAF, PVB) with stronger water resistance, adhesion and mechanical strength. ) is widely used in construction, coatings, adhesives, safety glass interlayers and other fields. As the degree of polymerization of PVA increases, the viscosity of the acetal increases.   PVA is an excellent protective colloid and dispersant for the homopolymerization of vinyl acetate or copolymerization with other monomers to produce emulsions (white glue), and is crucial in the production of white glue. Generally, as the degree of polymerization of PVA increases, the viscosity of the produced emulsion increases. Partial alcoholysis polyvinyl alcohol (such as PVA 17-88, PVA 24-88) is often used in combination with fully alcoholysis polyvinyl alcohol(PVA 17-99). The use of partially alcoholytic PVA can increase the stability of the emulsion. Use Completely alcoholylated PVA can increase the water resistance of emulsions.   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.   PVA 2488 &088-50   PVA 1788 & 088-20   PVA 17-99 & 100-27    

The ethylene segment is introduced into the VAE emulsion molecule, which acts as a plasticizer and reduces the glass transition temperature and film-forming temperature, thus giving the VAE emulsion adhesive many excellent properties. 1. It has good initial tack, wet tack and fast curing speed. It can harden the conjunctiva in 5-10 minutes at room temperature. So it is stable in storage. 2. The cured adhesive film is colorless and transparent, flexible and not brittle, with good resilience and an elongation of up to 600%. 3.  Good water resistance, alkali resistance, wear resistance, creep resistance, freeze-thaw resistance. The performance of VAE film will not change even after being soaked in weak alkali and weak acid media for 1 year. 4. Good weather resistance, UV resistance, not easy to oxidize and age. 5. It is non-toxic, odorless and harmless, suitable for hygiene and food purposes. It can be used to produce hygiene materials, such as sanitary napkins, diapers, medical cloths, wipes, surgical caps and other disposable cloths and food packaging. 6. Good compatibility with other water-based adhesives. And it is easy to modify to obtain new properties. 7. Low surface force, suitable for bonding materials with low surface properties, such as PE, PP, PS, etc. 8. It has strong adaptability and excellent adhesion to a variety of materials, especially film products such as PVC, PET, PA, etc. 9. The dry adhesive film after the water has evaporated can be hot-melt sealed at a heat sealing temperature of 82-90°C. 10. It is easy to apply and clean glue, convenient and safe to use.   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.

  VAE (vinyl acetate-ethylene) emulsion is widely used in the textile industry for various applications. Some of the key applications of VAE emulsion in the textile industry include:   1. Textile binders: VAE emulsions are used as binders in textile printing and finishing processes. They provide excellent adhesion and cohesion properties, allowing the pigments and other additives to adhere to the fabric effectively.   2. Non-woven fabrics: VAE emulsions can be used as binders in the production of non-woven fabrics, such as spunbond, meltblown, and needle-punched fabrics. They enhance the strength, stability, and durability of the non-woven fabrics.   3. Carpet backing: VAE emulsions are commonly used as binders for carpet backing. They provide good adhesion between the carpet fibers and the backing material, ensuring the stability and longevity of the carpet.   4. Textile coatings: VAE emulsions can be applied as coatings on textiles to improve their performance properties. They can enhance the fabric's water repellency, stain resistance, and durability.   5. Textile laminates: VAE emulsions are used in the production of textile laminates. They are applied as adhesive layers between different fabric layers or between fabric and other materials to create laminate structures with desired properties.   6. Textile sizing: VAE emulsions can be used as a component of sizing formulations, which are applied to yarns or fabrics to improve their weaving or knitting performance. The VAE emulsion provides lubrication and film-forming properties, reducing yarn breakage during the weaving or knitting processes.   Overall, VAE emulsions offer versatile properties that make them suitable for various applications in the textile industry, providing enhanced performance, durability, and aesthetics to textile products.   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.  

  Polyvinyl alcohol (PVA) has several applications in agriculture, including:   1. Seed coating: PVA can be used as a seed coating material to enhance germination, improve seedling growth, and provide protection against pests and diseases.   2. Soil stabilizer: PVA can be added to soil to improve its structure and stability, especially in erosion-prone areas. It helps reduce soil erosion, increase water retention, and enhance soil fertility.   3. Mulching film: PVA films can be used as mulching materials to cover the soil around plants. This helps to conserve moisture, control weed growth, and maintain stable soil temperatures, leading to improved plant growth and higher crop yields.   4. Slow-release fertilizers: PVA can be incorporated into fertilizer formulations to create slow-release or controlled-release fertilizers. This allows nutrients to be released gradually over time, providing sustained nutrition to plants and minimizing nutrient leaching.   5. Crop protection: PVA can be used as a component in biodegradable agricultural films for crop protection purposes. These films can be used for insect barriers, weed control, and microbial resistance, reducing the reliance on conventional plastic films.   6. Hydrogel applications: PVA hydrogels have been utilized in agriculture for various purposes, such as water retention in drought-prone areas, as carriers for controlled release of agrochemicals, and as bio-based materials for seed germination and plant growth.   These applications demonstrate the versatility of PVA in agriculture, providing solutions for improving plant growth, conserving resources, and promoting sustainable farming practices.   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.  

Polyvinyl alcohol (PVA) has various applications in the film industry. Here are some of the common applications of PVA in films:   1. Water-soluble film: PVA can be used to produce water-soluble films that are used for packaging various products such as detergents, agrochemicals, and personal care products. These films dissolve in water, providing convenience and reducing waste.   2. Food packaging film: PVA can be used as a coating or component in food packaging films. It provides excellent oxygen barrier properties, moisture resistance, and aroma retention, helping to extend the shelf life of food products.   3. Biodegradable film: PVA can be used to produce biodegradable films that are environmentally friendly. These films can replace traditional plastic films in applications such as mulch films, agricultural films, and compostable packaging materials.   4. Drug delivery films: PVA films can be used as drug delivery systems in the pharmaceutical industry. These films can be loaded with active pharmaceutical ingredients and used for transdermal patches, oral dissolvable films, or other drug delivery applications.   5. Optical film: PVA can be used in the production of optical films for applications such as LCD displays and optical lenses. These films provide excellent optical clarity, high transparency, and low birefringence.   6. Photographic film: PVA has been widely used in the production of photographic films. It acts as a binder and protective coating, ensuring adhesion of the photo emulsion to the film base and providing surface protection.   Overall, PVA has versatile properties that make it suitable for a wide range of film applications, including water-soluble films, food packaging films, biodegradable films, drug delivery films, optical films, and photographic films.   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.   PVA 088-50 & PVA 24-88 Polyvinyl alcohol PVA 088-20 & PVA 17-88 Polyvinyl alcohol PVA 100-27 & PVA 1799 Polyvinyl alcohol    

Polyvinyl alcohol (PVA) is widely used in the paper industry due to its excellent film-forming and adhesive properties. PVA is typically used in the paper manufacturing process as a binder, coating agent, or surface sizing agent. Here are some common applications of PVA in the paper industry:   1.Surface Sizing: PVA is used as a surface sizing agent to improve the surface properties of paper, such as its smoothness, printability, and water resistance. It forms a thin film on the surface of the paper, reducing the penetration of liquids and improving the ink receptivity.   2. Binder for Coatings: PVA is used as a binder in the formulation of coatings applied to paper surfaces. It helps in binding pigments and other additives to the paper, enhancing the color retention, gloss, and overall performance of the coatings.   3. Adhesive for Paperboard: PVA is utilized as an adhesive in the production of paperboard and cardboard boxes. It provides excellent adhesion between the layers of paper, improving the overall strength and durability of the packaging materials.   4. Release Agent: PVA can be used as a release agent in the paper industry. It is applied to the surfaces of rollers and machinery to prevent sticking and improve the smooth flow of paper during the production process.   5. Fiber Treatment: PVA can be applied to paper fibers to improve their bonding properties and enhance the paper's strength and tear resistance.   It's important to note that the specific grade of PVA used in the paper industry may vary depending on the desired properties and requirements of the paper or paperboard being produced.   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. PVA 088-08 & 05-88   PVA 100-27 & 17-99   PVA 088-20 & 17-88