Polyvinyl Alcohol Adhesive

The full name of PVB is polyvinyl butyral, or PVB resin for short. It contains a lot of hydroxyl (OH) groups, which can produce bridging reactions with some thermosetting resins to improve chemical resistance and coating film hardness. PVB molecules contain long branched chains and have good flexibility, excellent transparency, strong adhesion, good light resistance, heat resistance, cold resistance, water resistance, film-forming properties, solubility, miscibility, high tensile strength and impact resistance, etc. It is widely used in the fields of manufacturing laminated safety glass, coatings, adhesives, ceramic film decals, vacuum aluminum foil paper, electrical materials, fiberglass products, fabric treatment agents and engineering plastics. It is a synthetic resin material with broad development and utilization prospects. There are three main synthesis methods for producing PVB in the industry: one-step method, dissolution method and precipitation method. The following will introduce these three process methods and their advantages and disadvantages in the production process one by one.   The one-step method refers to a generation process in which the hydrolysis of polyvinyl acetate (PVAC) and the acetal reaction of the generated PVB are carried out simultaneously. It is represented by the production process of Solutia Company (the chemical division of Monsanto Company was split to form Solutia Company, which has now been acquired by Eastman Company). Vinyl acetate is bulk polymerized to form a methanol solution of polyvinyl acetate, and HCI is added for alcoholysis. The PVA generated by alcoholysis is suspended in a mixed solvent of ethanol and ethyl acetate, and butyraldehyde and HCI are added for acetal reaction. At the reflux temperature, react for 8 to 10 hours. As the reaction proceeds,  Polyvinyl Alcohol PVA is completely dissolved and a uniform PVB solution is finally formed. Then add alkali to adjust the pH to 6. After reaching the specified acetal rate, it precipitates in water. After washing, neutralizing and drying, the finished PVB product can be obtained.   The dissolution method is to make PVA into a methanol suspension, add HCI and butyraldehyde to perform a condensation reaction. As the reaction proceeds, PVA gradually dissolves to form a uniform solution. After reaching the specified acetal ratio, it precipitates in water. After washing, neutralizing and drying, the finished PVB product can be obtained. The acetal rate of the PVB resin produced by this method can reach more than 86%, and the condensation distribution is uniform.   The precipitation method requires first dissolving PVA in water (85-90°C), then filtering the solution, pressing it into an acetal kettle, adding hydrochloric acid and butyraldehyde, and adding butyraldehyde in two batches to start homogeneous condensation. When the reaction reaches a certain level, PVB particles are precipitated from the solution and suspended in the mother liquor, which is a heterogeneous condensation reaction. When the condensation is completed, the material is put into a water washing kettle, washed with water, and alkali is added for stabilization, then filtered and dried to obtain powdered PVB.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com

 Polyvinyl Alcohol (PVA), as a water-soluble synthetic polymer, offers excellent adhesive properties, making it an ideal choice for a wide range of applications. One key advantage of PVA is its ability to form a strong bond between different materials, including wood, paper, and fabrics. This attribute makes PVA Adhesive highly suitable for woodworking projects, where a strong and durable bond is required.   For woodworkers, Polyvinyl Alcohol for Woodworking opens up new possibilities. Its water-soluble nature allows for easy application and cleanup, while providing a strong bond between wood surfaces. Whether it's joining pieces of furniture, laminating wooden panels, or creating intricate woodcraft, PVA-based adhesives ensure a reliable and long-lasting bond.   In the paper-making industry, the demand for efficient and high-quality adhesive solutions is crucial. Polyvinyl Alcohol Glue for Paper Making offers excellent performance characteristics, boosting both the efficiency and quality of the production process. When applied as a coating on paper, PVA adhesive ensures improved strength, dimensional stability, and printability. Additionally, it provides excellent resistance to moisture, heat, and chemicals, enhancing the overall durability of paper products.   The versatility of PVA extends to the manufacturing of Polyvinyl Alcohol Film. This transparent, flexible film exhibits excellent adhesive properties, making it an essential component for various industries. From packaging materials to labels, PVA Film ensures secure adhesion while maintaining the integrity and appearance of the product.   Polyvinyl Alcohol (PVA 100-27H & PVA 1799H), with its unique properties, enhances the performance of adhesive products in numerous applications. Whether it's in woodworking, paper making, or other industries, PVA-based adhesives offer strong bonds, improved durability, and ease of use. As a supplier of PVA products, we can provide tailored solutions to meet the specific requirements of your adhesive applications.   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) is a versatile and widely used water-soluble synthetic polymer. Although commonly for its applications in the adhesive and film industries, PVA has gained significant recognition in the field of agriculture. Its unique properties make it an invaluable asset for various agricultural practices, contributing to improved crop yields, efficient water usage, and enhanced soil quality.   PVA-based adhesives are utilized as a coating agent for seeds, helping to enhance adherence, provide controlled release of nutrients, and protect against pests and diseases. By using PVA as a binder for beneficial bioactive substances, such as growth promoters and pesticides, farmers can achieve precise and targeted delivery, reducing environmental impact and optimizing plant protection efficiency.   Unstable soils, prone to erosion, can negatively impact crop growth and nutrient retention. PVA emulsions or films are applied to soil surfaces to control soil erosion by stabilizing the soil structure. This protective layer acts as a barrier, reducing water runoff, preventing soil compaction, and minimizing nutrient leaching. PVA film also serves as an effective weed control measure, suppressing weed growth and competition.   Water scarcity is an ongoing concern in agriculture. PVA's water-soluble nature allows for the controlled release of water and nutrients to plants, ensuring proper hydration while minimizing wastage. PVA-based Mulch films are widely used to retain soil moisture, regulate soil temperature, and prevent weed growth. Additionally, these films are biodegradable, leaving no harmful residues behind.   PVA (PVA 088-35 & PVA 2088)  hydrogel formulations are beneficial in increasing water holding capacity and providing a reservoir of water for plant roots. This hydrogel application can improve seed germination, enhance rooting, and support the establishment of seedlings in arid or dry regions. The hydrogel's ability to retain moisture and nutrients promotes vigorous plant growth, leading to better crop development and increased yields.   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), also known as PVOH, is a versatile polymer that is widely tested in various industries. In the field of packaging, PVA is popular for its unique properties and advantages. Main uses in the packaging industry include PVA packaging film and PVA packaging adhesive   Polyvinyl Alcohol Adhesive, derived from PVA, offers exceptional bonding strength and adhesion properties. This makes it an ideal choice for packaging applications that require secure seals and strong bonds. Whether it's paper-to-paper, film-to-film, or film-to-paper adhesion, PVA adhesive provides reliable and long-lasting performance, ensuring the integrity of the packaged contents. PVA (PVA 098-04 & PVA 0498) is a water-soluble synthetic polymer, which means it easily dissolves in water without leaving any harmful residues. Water-solubility is a valuable feature in packaging solutions, particularly for products such as detergents, agricultural chemicals, and single-use packaging. When exposed to water, PVA-based packaging dissolves, facilitating convenient and eco-friendly disposal methods, and reducing waste accumulation. Polyvinyl Alcohol offers excellent barrier properties when used as a coating or film in packaging materials. It provides an effective barrier against oxygen, moisture, and UV radiation, safeguarding the packaged contents from external factors that could impact their quality or shelf life. PVA coatings are commonly used in food packaging, pharmaceuticals, and electronics, ensuring product stability, freshness, and protection. PVA is a highly versatile polymer, compatible with a wide range of substances and materials. It can be easily blended or combined with other polymers, additives, or fillers to enhance specific properties or meet unique packaging requirements. Whether it's improving mechanical strength, flexibility, or thermal stability, PVA can be tailored to suit diverse packaging applications, offering customized solutions for various industries.   Its adhesive properties, water solubility, and exceptional barrier properties make it a preferred choice in industries that prioritize product integrity, environmentally friendly disposal, and versatile packaging options. Furthermore, the compatibility and customization options provided by PVA ensure its applicability across a wide range of packaging applications. As sustainable practices and consumer demands continue to shape the packaging industry, Polyvinyl Alcohol remains an essential component in meeting these evolving needs efficiently and effectively.   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) adhesive is a versatile and widely used product in industries. Its unique properties make it an excellent choice for applications such as paints and coatings, paper making, textiles, and more.   PVA (PVA 088-07 & PVA 0888) adhesive has gained popularity in the paints and coatings industry due to its exceptional bonding properties. It provides strong adhesion to various surfaces, including wood, metal, and plastics, making it ideal for both interior and exterior applications. PVA adhesive offers excellent water resistance, flexibility, and durability, ensuring long-lasting results. Its ease of use and low odor make it a preferred choice for professional painters and DIY enthusiasts alike.   The paper making industry relies heavily on PVA adhesive for its superior binding capabilities. PVA adhesive enables the production of high-quality paper products by providing excellent adhesion between fibers. It improves paper strength, enhances printability, and reduces paper breakage during processing. Additionally, PVA offers good water solubility, which is essential for the controlled dissolution of paper in recycling processes.   In the textile industry, PVA adhesive plays a vital role in various applications, such as fabric finishing, laminating, and bonding. PVA adhesive provides a strong bond between different types of fabrics, ensuring secure seams and preventing fraying. It enhances the fabric's overall stability and durability, making it suitable for applications requiring resistance to washing, dry cleaning, and repetitive mechanical stress.   As a water-soluble polymer, PVA offers numerous advantages over other types of adhesives. Its water solubility allows for easy cleanup, reducing the need for harsh chemicals during application and removal. PVA adhesive can be easily diluted to achieve desired viscosity, making it suitable for a wide range of applications. Its non-toxic nature and low environmental impact further contribute to its appeal as a sustainable adhesive option. Polyvinyl Alcohol adhesive stands out as a reliable and versatile choice across various industries. Its exceptional bonding properties, water resistance, flexibility, and ease of use make it a preferred adhesive for paints and coatings, paper making, textiles, and more. Whether it's enhancing the quality of paper products, improving the durability of textiles, or providing a reliable bond in various applications, It continues to be an indispensable tool for industry professionals. Consider incorporating PVA adhesive into your manufacturing processes to benefit from its numerous advantages.   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.

Redispersible emulsion powder is a modified emulsion powder obtained by spray drying of a binary or ternary copolymer of vinyl acetate and tertiary vinyl carbonate -VeoVa or ethylene or acrylic ester, which has good redispersibility and is re-dispersed into emulsion when it is in contact with water, and its chemical properties are exactly the same as the initial emulsion. After mixing with the water in the mortar, it emulsifies and disperses in the water to form a stable polymerization emulsion. After dispersing in water, the water evaporates, forming a polymer film in the mortar after drying, improving the performance of the mortar. Different dispersible latex powders have different effects on the dry mortar. 1. Improve the impact resistance, durability and wear resistance of mortar The rubber powder particles fill the cavity of the mortar, the densification of the mortar is increased, and the wear resistance is improved. Under the action of external forces will produce relaxation and not be destroyed. The polymer film can exist in the mortar system for a long time.   2. Improve the bonding strength and cohesion of mortar As an organic binder, dispersible emulsion powders provide high tensile strength and bonding strength on different substrates. It plays a very important role in the adhesion between mortar and organic materials (molded plates, extruded plates) and smooth surface substrates. The film-forming polymer rubber powder is distributed in the whole mortar system as a reinforcing material to increase the cohesion of the mortar.   3. Improve the mortar's weatherability, freeze-thaw resistance and prevent mortar crackingThe RDP emulsion powder is a thermoplastic resin adhesive powder with good flexibility, which can make the mortar cope with the external cold and hot environment changes and effectively prevent the mortar from cracking due to the change in temperature difference.   4. Improve the hydrophobicity of mortar and reduce water absorptionThe RDP emulsion powder forms a film in the mortar cavity and surface, and the polymer resin film will not disperse twice after encountering water, preventing the invasion of water and improving the impermeability. Enhanced dispersible adhesive powder with hydrophobic effect has better hydrophobic effect.   5. Improve the bending strength and flexural strength of mortar The polymer film formed by dispersible emulsion powder has good flexibility. The film is formed in the gap and surface of cement mortar particles to form a flexible connection, so that the brittle cement mortar becomes elastic. The mortar added with dispersible emulsion powder has much better tensile and flexural properties than ordinary mortar.   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.