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 elas…