PVA BP 24

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PVA BP 24

  • Supply and demand status of polyvinyl alcohol (PVA) industry
    Mar 14, 2023
    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
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  • What are the applications of PVA in agriculture?
    Aug 20, 2020
      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.  
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  • Application of Polyvinyl Alcohol(PVA) in films
    Aug 08, 2020
    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    
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  • Application of PVA in paper industry
    Aug 02, 2020
    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  
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  • PVA is safe and environmentally friendly.
    Feb 26, 2020
    Polyvinyl alcohol (PVA) is generally considered safe and environmentally friendly. It is non-toxic, biodegradable, and does not release harmful substances during use or decomposition. PVA is derived from renewable resources, such as petroleum or natural gas, and it can be produced with minimal environmental impact.   PVA's biodegradability means that it can break down naturally over time, reducing its potential impact on ecosystems. However, its rate of biodegradation depends on various factors such as temperature, humidity, and microbial activity in the environment. In general, PVA is considered to degrade at a moderate rate compared to some other materials.   Polyvinyl alcohol is not considered a microplastic. Microplastics are typically tiny plastic particles measuring less than 5 mm in size and are often created from the breakdown of larger plastic materials or the direct release of small plastic particles. PVA, on the other hand, is a water-soluble synthetic polymer derived from polyvinyl acetate through a hydrolysis process. When PVA is exposed to water or moisture, it dissolves completely, unlike microplastics that persist in the environment.   In summary, PVA is generally considered a safe and climate-friendly material due to its biodegradability, low toxicity, and minimal environmental impact during production. However, as with any material, responsible use and proper disposal practices are essential to ensure its environmental sustainability.   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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  • How to make PVA dissolve faster?
    Feb 18, 2020
    To make PVA dissolve faster, you can try the following methods:   Increase the water temperature: Warmer water helps to accelerate the dissolution of PVA. Heat the water to a moderate temperature, but avoid using boiling water as it may denature the PVA.   Stir or agitate the solution: Stirring or agitating the PVA solution can enhance the dissolution process by increasing the contact between the PVA particles and water. Use a stirring rod or mixer to create turbulence in the solution.   Use smaller PVA particles: If your PVA is in the form of solid particles or granules, consider grinding or crushing them into smaller particles before adding them to the water. Smaller particles have a larger surface area, which facilitates faster dissolution.   Use water with a lower pH: Lowering the pH of the water slightly can help to improve the solubility of PVA. However, avoid using strongly acidic solutions, as they may degrade the PVA.   Increase the water-to-PVA ratio: Using a higher volume of water in proportion to the amount of PVA can aid in faster dissolution. This allows for better dispersion and interaction between PVA and water molecules.   Remember to follow the specific instructions provided by the manufacturer for the particular PVA product you are using, as they may have specific recommendations for optimal dissolution.   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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  • Degradation of the polymer PVA
    Jan 21, 2020
    Polyvinyl alcohol (PVA) is a polymer that undergoes degradation under certain conditions. The degradation of PVA can occur through various mechanisms, including physical, chemical, and biological processes.   Physical degradation: PVA can degrade through mechanical forces such as abrasion, shearing, or exposure to extreme temperatures. These physical processes can lead to the breakdown of the polymer chains and a reduction in its molecular weight.   Chemical degradation: PVA is susceptible to chemical degradation when exposed to certain chemicals, including strong acids or bases, oxidizing agents, and UV radiation. These agents can break the chemical bonds within the polymer structure, resulting in the fragmentation of PVA molecules.   Biological degradation: PVA is generally considered biodegradable, meaning it can be broken down by microorganisms present in the environment. Certain bacteria and fungi have enzymes capable of degrading PVA, converting it into simpler compounds such as water, carbon dioxide, and biomass.   The rate of PVA degradation depends on various factors, including the molecular weight and structure of the polymer, the environmental conditions, and the presence of degrading agents. In general, PVA is known to degrade slowly, especially in dry environments and at low temperatures. However, the degradation rate can be enhanced by controlling these factors or by using specific catalysts or enzymes designed for PVA degradation.   It's important to note that the specific degradation behavior of PVA can vary depending on the formulation and additives used, as well as the intended application. Therefore, it is recommended to consult the manufacturer's guidelines and conduct specific tests to understand the degradation characteristics of PVA in a given context.   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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