甲基硅油生产工艺改进及异味去除

Improvement on Technology and Removal of Peculiar Smell of Dimethylsilicone Fluid

以二甲基混合环体和十甲基四硅氧烷为原料 ,四甲基氢氧化铵为催化剂 ,在 90～ 12 0℃间采用程序控温的办法 ,合成出甲基硅油。将转化率由平均 6 5 %提高到了 80 %以上。对产生异味的原因作了分析 ,并提出了解决方法。

s:Dimethyisilicone fluid was pepared from mixed methylcyclosiloxane and the oligomer of terminal-methyl polydimethylsiloxane,with tetramethyl ammonium bydroxide as catalyst,by means of program-controlled temperature at 90～120 ℃.The yield of dimethylsilicone fluid was increased from 65% to 80%.The reason for the peculiar small emerged during the production of dimethylsilicone fluid was analyzed,and the process of removal of peculiar smell was put forward.