| abstract |
The invention relates to a special material for PVB film in the technical field of polymer materials and a preparation method and application thereof. The special material for PVB film includes the following components in parts by weight: polyvinyl butyral, 100 parts by weight, hydrophobic amorphous nano-silica, 1-20 parts by weight; plasticizer, 10-50 parts by weight parts by weight. The present invention makes the fumed silica have hydrophobicity through the blending of maleic anhydride-styrene alternating copolymer microspheres and fumed silica, and is uniformly dispersed in the polymer matrix. The special material for PVB film has better weather resistance and moisture resistance and thermal insulation performance, and is widely used in photovoltaic thin film solar cell modules, laminated glass, interlayer films, adhesives and the like. |