25213-24-5 / 9002-89-5

CAS Nr.:

25213-24-5 / 9002-89-5

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EINECS Name:

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EINECS Nr.:

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Polyvinylalkohol (PVA)

Synonym:

Polyvinylalkohol (PVA)

Polyvinyl alcohol (PVA), known by its CAS numbers 25213-24-5 and 9002-89-5, is a versatile synthetic polymer with a wide range of applications across various industries. This text explores three to four different applications of polyvinyl alcohol and its key properties.

Properties of Polyvinyl Alcohol

Polyvinyl alcohol is a water-soluble polymer that can be produced in various grades depending on its degree of polymerization and hydrolysis. It is typically a white to pale yellow, odorless powder or a clear, viscous liquid. Key properties of PVA include high tensile strength, flexibility, and biodegradability. It is non-toxic and has excellent film-forming properties.

Applications of Polyvinyl Alcohol

Polyvinyl alcohol is widely used in the paper and packaging industry. It serves as a coating agent to improve the surface smoothness, printability, and barrier properties of paper and cardboard. PVA coatings provide a glossy finish and enhance ink adhesion, making them suitable for high-quality printing applications. Additionally, PVA is used in paper adhesives and as a binder in paper products.

In the textile industry, polyvinyl alcohol is used as a sizing agent to improve the weaving efficiency and strength of yarns. It enhances the fabric's resistance to abrasion and wrinkling, making it suitable for applications in clothing, home textiles, and industrial fabrics. PVA is also used in textile printing as a thickener for dye pastes and to improve the color fastness of fabrics.

Polyvinyl alcohol finds applications in the construction industry as an additive in cement and mortar formulations. It acts as a dispersant and improves the workability and adhesion of these materials. PVA-based additives help reduce shrinkage and cracking in concrete, thereby increasing the durability and longevity of building structures.

PVA is a key ingredient in the production of water-based adhesives and binders. It is used in woodworking, packaging, and bookbinding industries due to its strong adhesive properties and ease of use. PVA adhesives are non-toxic and provide a strong bond on porous and non-porous substrates, making them versatile for various applications.

Polyvinyl alcohol (PVA) (CAS No. 25213-24-5 / 9002-89-5) is a valuable synthetic polymer with diverse applications in paper coatings, textiles, construction materials, and adhesives. Its excellent film-forming properties, water solubility, and biodegradability make it environmentally friendly and suitable for a wide range of industrial applications. The versatile uses of polyvinyl alcohol highlight its importance as a key material in enhancing product performance and quality across different sectors.