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以苯基三甲氧基硅烷、二官能度硅氧烷、钛酸四丁酯(TBT)为原料,制备出一种高折射钛杂化苯基硅树脂(PPT),研究了TBT含量对硅树脂固化物性能的影响。研究结果表明:TBT含量增加,杂化硅树脂折射率增加,TBT含量为25%(wt,质量分数,下同)时,折射率可达1.686;TBT的引入对钛杂化硅树脂固化物电学性能与固化膜表面性能有一定影响,增加TBT含量,固化物介电常数增大,接触角减小;固化膜具有较好透过率,均大于76%;固化物具有良好的耐热性能,TBT含量为15%时,N2氛围800℃失重率可达82.9%。
A kind of high refractive titanium hybrid phenyl silicone resin (PPT) was prepared by using phenyltrimethoxysilane, difunctional siloxane and tetrabutyl titanate (TBT) as raw materials. The effects of TBT content on the content of silicone resin Effect of cured material properties. The results show that the refractive index of the hybrid silicon resin increases with the increase of TBT content, and the refractive index can reach 1.686 when TBT content is 25% (wt, mass fraction) The performance and the surface properties of the cured film have an impact, increasing the TBT content, the cured material dielectric constant increases, the contact angle decreases; cured film has a good transmittance, were greater than 76%; cured with good heat resistance, When the TBT content is 15%, the weight loss rate of N2 atmosphere at 800 ℃ can reach 82.9%.