Polyvinyl butyral is a product of the condensation of polyvinyl alcohol and butyraldehyde under acid catalysis. Because the PVB molecule contains long branch chains, it has good flexibility, low glass transition temperature, and high tensile strength and impact strength. PVB has excellent transparency, good solubility, good light resistance, water resistance, heat resistance, cold resistance and film-forming properties. It contains functional groups that can carry out various reactions such as saponification of acetyl groups, acetification of hydroxyl groups, sulfonation, etc. It has high adhesion with materials such as glass and metal (especially aluminum). Therefore, it has been widely used in the fields of manufacturing laminated safety glass, adhesives, ceramic decals, aluminum foil paper, electrical materials, fiberglass products, fabric treatment agents, etc., and has become an indispensable synthetic resin material.

Heat proof pvb is a newly developed product of our company. It adopts the international leading Nano Heat proof medium and adds Heat proof function to the explosion-proof and sound insulation functions of the traditional intermediate film. Features: 1. Infrared blocking rate 85%-99%, longer heat proof; 2. 99% ultraviolet blocking rate, sun protection, to avoid aging of interior parts or furniture; 3. 80% visible light transmittance, fully satisfying the light transmission requirements of automobile front and building glass; 4. Safety explosion-proof and anti-penetration; 5. Sound insulation and noise prevention; 6. High cost performance, longer heat insulation