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Proper storage of VAE Emulsion (Vinyl Acetate-Ethylene Copolymer Emulsion) is crucial to maintain its stability and performance over time. Here are some general guidelines for the storage of VAE Copolymer Emulsion:   1.Temperature and Environment: Store VAE emulsion in a cool, dry place. Avoid exposure to extreme temperatures and humidity, as these factors can impact the stability of Vinyl Acetate-Ethylene Copolymer Emulsion. Keep the storage area well-ventilated to prevent the buildup of heat and humidity.   2.Sealed Containers: Store ElephChem VAE emulsion in sealed containers to prevent water evaporation and contamination. Emulsions are water-based, and exposure to air can lead to changes in viscosity and other properties. Ensure that containers are tightly sealed after each use to minimize exposure to air.   3.Protection from Freezing: Protect ElephChem VAE emulsion from freezing. Freezing can lead to irreversible changes in the VAE emulsion's structure and result in a loss of performance. If the VAE emulsion has been exposed to freezing temperatures, it is advisable to thoroughly mix and test it before use.   4.Avoid Exposure to Sunlight: Shield VAE emulsion from direct sunlight. Ultraviolet (UV) radiation can potentially degrade the polymer and affect the performance of the emulsion.   5.Handling Precautions: Follow proper handling procedures to avoid contamination. Use clean equipment and tools when transferring or dispensing Vinyl Acetate-Ethylene Copolymer Emulsion. If possible, use a first-in, first-out (FIFO) system to ensure that older batches are used before newer ones.   6.Avoid Mixing with Incompatible Substances: Do not mix ElephChem VAE emulsion with incompatible substances. This includes avoiding contact with solvents or chemicals that may adversely affect Vinyl Acetate-Ethylene Copolymer Emulsion's stability.   7.Regular Inspection: Periodically inspect stored ElephChem VAE emulsion for any signs of separation, coagulation, or other abnormalities. If any issues are identified, investigate the cause and take corrective action as needed.   8.Manufacturer-ElephChem's Recommendations: Always refer to the specific recommendations provided by the manufacturer for the storage and handling of the particular ElephChem VAE copolymer emulsion you are using. Different formulations may have specific requirements. Following these storage guidelines helps ensure that ElephChem VAE Copolymer Emulsion maintains its intended properties and performance throughout its shelf life. Always consult the product's technical data sheet or the manufacturer-ElephChem's guidelines for the most accurate and specific storage recommendations.

ElephChem Polyvinyl alcohol (PVA) is a water-soluble synthetic polymer with a wide range of applications, including as a component in adhesives, coatings, and as a film-forming agent. Proper storage of polyvinyl alcohol is important to maintain its quality and usability. Here are some general guidelines for the storage of ElephChem Polyvinyl alcohol (PVA):1.Temperature and Humidity:Store polyvinyl alcohol in a cool, dry place. Exposure to high temperatures and humidity can lead to changes in the physical properties of the material, such as increased moisture absorption.Avoid storage in areas prone to temperature fluctuations. 2.Sealed Containers:Keep polyvinyl alcohol in sealed containers to prevent moisture absorption. PVA is water-soluble, and exposure to moisture can affect its performance.Use airtight containers or bags to protect the material from environmental conditions.   3.Protection from Light:Store ElephChem Polyvinyl alcohol (PVA) away from direct sunlight and other sources of UV light. Prolonged exposure to light can cause degradation of the polymer. 4.Avoid Contamination:Keep ElephChem Polyvinyl alcohol (PVA) away from contaminants such as dust, dirt, and chemicals that may affect its properties.Use clean utensils and tools when handling and transferring PVA to prevent contamination.   5. Handling Precautions:Follow proper handling procedures to avoid introducing impurities during the storage and use of polyvinyl alcohol.Wear appropriate personal protective equipment, such as gloves and safety glasses, when handling the material.   6.First In, First Out (FIFO):Follow a FIFO system to ensure that older batches of ElephChem Polyvinyl alcohol (PVA) are used first. This helps prevent the material from sitting in storage for extended periods, reducing the risk of degradation.   7.Check for Changes:Periodically inspect stored ElephChem polyvinyl alcohol for any signs of discoloration, clumping, or changes in texture. If any abnormalities are observed, it's essential to investigate the cause and assess the material's suitability for use. Periodically inspect ElephChem PVA for any signs of discoloration, clumping, or changes in texture.  If any abnormalities are observed, it's essential to investigate the cause and assess the material's suitability for use.Always refer to the specific manufacturer-ElephChem's guidelines and recommendations for the storage of the particular grade or type of polyvinyl alcohol you are using. Different formulations may have varying storage requirements. Proper storage practices contribute to the longevity and effectiveness of polyvinyl alcohol in various applications.  

Polyvinyl alcohol (PVA) is a water-soluble high polymer produced by the polymerization and hydrolysis of vinyl acetate (VAC). It exhibits excellent chemical stability and possesses properties such as good insulation, film-forming ability, gas barrier performance, water solubility, adhesion, interfacial chemistry, solvent resistance, and thermal stability.   ElephChem PVA products can be classified based on different degrees of polymerization: low degree of polymerization (DP < 1000), medium degree of polymerization (1000 < DP < 2000), and high degree of polymerization (DP > 2000).   ElephChem PVA products can also be categorized according to different degrees of hydrolysis: low hydrolysis (< 80) ,for example PVA 2088, partial hydrolysis (79-89),such as PVA 2488, PVA 0588, medium hydrolysis (91-98), and complete hydrolysis (98-99).

ElephChem Polyvinyl Alcohol (PVA) is generally considered a type of synthetic polymer rather than a plastic. While it shares some properties with plastics, such as being flexible and water-resistant, PVA is classified as a polymer due to its unique chemical structure and behavior.   ElephChem PVA is derived from the polymerization of vinyl acetate, which is then hydrolyzed to remove the acetate groups and produce polyvinyl alcohol. The hydrolysis process converts some of the acetate groups (CH3COO-) into hydroxyl groups (OH-), resulting in a polymer chain with repeating vinyl alcohol units (CH2CHOH). The degree of hydrolysis determines the amount of hydroxyl groups present in the PVA molecule.   Modifications of ElephChem PVA can be done by chemically cross-linking the polymer chain to improve its mechanical and thermal properties. Cross-linking agents, such as borates or aldehydes, can be used to create covalent bonds between PVA chains, leading to a three-dimensional network structure. This cross-linked PVA, known as PVA hydrogel, exhibits enhanced strength, elasticity, and stability compared to non-cross-linked PVA. Such as PVOH 725, PVOH 735, etc.   Other modifications can involve blending PVA with other polymers or adding functional groups to the PVA backbone to impart specific properties or improve its compatibility with different materials or applications. These modifications allow PVA to be used in a wide range of industries, including adhesives, films, coatings, textiles, and packaging.

China is a major global producer of PVA (Polyvinyl alcohol). Since 1965, when Beijing Oriental Petrochemical Co., Ltd. (formerly Beijing Organic Chemical Factory) introduced technology from Japan and established the first set of calcium carbide acetylene method in China (changed to petroleum ethylene method in 1995), the production of PVA in China has steadily developed. According to statistics, in 2015, China's Polyvinyl Alcohol (PVA) production was approximately 700,000 tons, increasing to 802,000 tons in 2022, with a compound annual growth rate of 1.96% during this period. In terms of demand, the apparent consumption of PVA in China in 2022 was 639,600 tons, representing a year-on-year growth of 2.16%.