Polyvinyl butyral resin (PVB) is the synthertic resin composed of PVA and butyl aldehyde with condensation. It could be solubie in methanol, ethanol, acetone, aromatic solvents. It has high transparency, good cold resistance and impact resistance, as well as the good adhesion with glass, ceramic, metal and so on.
|TIME AND INDEX||WWW-A-10||WWW-A-20||WWW-A-30||WWW-A-40||WWW-A-50||WWW-A-60||WWW-A-70|
|Appearance||White or slightly yellow power,no visible impurity|
|Viscosity,S(-1 viscometer method)||≤5||5~10||10~18||18~30||30~60||60~180||>180|
|Polyvingl butyrdsf,%||68~85 68~85 70~85|
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