CAS 63148-65-2 Polyvinyl butyral - Materials / Alfa Chemistry

NAVIGATION

Polyvinyl butyral

PRICE INQUIRY

Catalog Number

ACM63148652-6

CAS Number

63148-65-2

Product Name

Polyvinyl butyral

Category

Engineering Plastics; Polymers

Synonyms

Poly(2-propyl-m-dioxane-4,6-diylene)

Melting Point

165-185 °C

Density

1.08g/ml

Application

Polyvinyl Butyral (PVB) is a versatile synthetic resin primarily used as an interlayer material in safety glass due to its excellent optical clarity, weather resistance, and impact resistance. It bonds effectively with glass surfaces, providing rigidity combined with flexibility, which is crucial for maintaining structural integrity across a wide temperature range. Produced via the condensation reaction of polyvinyl alcohol and butyraldehyde in the presence of an acid catalyst, PVB contains functional groups that contribute to its unique properties, such as butyral, alcohol hydroxyl, and acetate. These groups, which are randomly distributed along its molecular chain, offer various customization possibilities depending on the desired application. Beyond safety glass, PVB's uses extend to special coatings for ceramics, providing cost-effectiveness and high color burn rates, and serving as an essential component in the coating industry to enhance adhesion and elasticity of coat films. Its role in adhesives includes forming high-performance structural and thermosetting bonds. Additionally, PVB is integral in the production of aluminum foil paper for packaging, owing to its waterproof properties and ability to improve adhesion. Other applications encompass specialty inks, waterproof fibers for fabrics, and potential utility in dental restorations and wound care products.

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