Recently, the high-end automotive grade polyvinyl butyral resin masterbatch developed by Shanghai Petrochemical has been officially put into industrial production. This move will break the monopoly of high-end PVB resin manufacturing industry in China.
It is understood that PVB resin is formed by condensation reaction of polyvinyl alcohol (PVA) resin and n-butyraldehyde under acid catalysis. It is widely used in automotive safety glass, architectural safety glass, solar photovoltaic module packaging film, coating, primer, ink and other fields. , Large market demand, high added value.
However, at present, only a few companies in the world can produce high-quality PVB resin which can be used in automotive safety glass.With the development of China's automobile industry, the demand for automotive grade PVB interlayer film is increasing, while the domestic high-quality PVB resin film material yield is very low, heavily dependent on foreign imports.
In order to break the foreign monopoly market, the company's chemical department set up a professional R & D team to carry out joint research, and constantly optimize the scientific process, and gradually improve the technical indicators of PVB resin.After ten years of research and development experiments, high-end automotive grade PVB resin masterbatch finally come out. The new product of PVB resin produced by the masterbatch reached the international advanced level of the same kind of products on the technical indexes of transparency, light resistance, cold resistance, water resistance, film forming and impact resistance, etc. The melt index, yellowness index, etc. The indicators can also be comparable to the developed countries' products in the United States, Japan, and Europe.