| abstract |
An interlayer is devised to facilitate handling of the interlayer while maintaining sound attenuation quality in multilayer glazing applications and other applications where noise suppression is desirable. The intermediate layer includes a thermoplastic polymer, a plasticizer, and fumed silica modified to impart hydrophobic properties. An intermediate layer incorporating such components has improved tensile modulus, moisture resistance, creep performance, anticorrosive effect, and glass adhesion, and is suitable for various applications including but not limited to acoustic applications. is there. The fumed silica is alkylated, contains 0.5% by weight carbon, and has an average aggregate length of 0.2-0.3 μm. The intermediate layer is a polymer sheet comprising a single or plural polymer sheets, wherein the plasticizer contains 10 to 70 parts per 100 parts of resin and 0.05 to 15 parts of fumed silica. [Selection figure] None |