Wanwei PVA 2088

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.

Modification of inorganic cementitious materials such as cement with polymer emulsion has been widely used. Since the water in the emulsion will immediately react with the cement after mixing the two and finally solidify, a two-component form is used in most cases. , measure and mix each component in proportion at the construction site. This brings inconvenience to the storage, transportation and construction of materials. The emergence of re-dispersible emulsion powder has changed the above phenomenon. Redispersible latex powder is a micron-sized thermoplastic resin powder obtained by spray-drying a polymer emulsion to remove water. It can be reduced to an emulsion after adding water.Due to this characteristic, it is widely used in single-component JS waterproof coatings, polystyrene board bonding mortars for building insulation, flexible surface protection mortars, polystyrene particle insulation coatings, ceramic tile adhesives, self-leveling mortars, dry-mix mortars, etc. It is widely used in fields that require modification of inorganic cementitious materials.   RDP is a polymer powder produced by spray drying of polymer emulsion. Polymer emulsions are mostly oil-in-water systems in which thermoplastic polymers with a solid content of about 50% are evenly distributed in water with fine particles (0.1-10 μm). After losing water, the polymer particles first form dense spheres and accumulate on the surface. Under the action of energy, discrete polymer particles form a continuous polymer body. To produce redispersible latex powder by the spray drying method, a layer of PVA protective film is added to the surface of the polymer in advance. Due to the existence of the protective film, the dry powders cannot merge. In order to prevent the rubber powder from agglomerating, some fine mineral powders are also added. , such as clay, etc. However, when redispersible latex powder is mixed with alkaline substances such as cement and water, the PVA(PVA 088-35 & PVA 2088)will be saponified and adsorbed by the quartz in the sand and removed. The rubber powder that has lost its protective film can eventually form a continuous water-insoluble polymer. membrane.   The particle size of the rubber powder (5-250 μm) is much larger than the particle size of the polymer dispersed phase in the emulsion (0.1-10 μm), indicating that the latex particles will agglomerate during the spray drying process. In order to reduce the tendency of polymer powder to agglomerate during long-term storage, inert fluid materials such as clay, talc, silica and other fine particles are usually added to the dry powder as anti-stick fillers. The filler is determined according to the type of polymer and its glass transition temperature. The dosage is generally 8%-30% of the dry polymer powder, which is the main source of ash in redispersible latex powder. After redispersible latex powder is redispersed, the diameter of the latex particles becomes about (0.1-10μm).   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 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,PVA 088-35 & PVA 2088) and Vinyl Acetate–ethylene Copolymer Emulsion(VAE) with strong recognition and excellent plant facilities of international standards.