PVB diaphragm (PVB film) is the core component of laminated glass. The level of localization in the domestic market needs to be improved.

PVB diaphragm, also known as PVB film and PVB interlayer film, refers to a translucent diaphragm made of PVB (polyvinyl butyral POLYVINL). PVB diaphragm has the advantages of good toughness, high elasticity, high impact strength, high mechanical strength, strong adhesion, good light transmittance, strong weather resistance, and good heat resistance. It is one of the…