喷丝板脱模剂的合成工艺  

Synthesis technology of injection mold release agent

作　　者：杨俊玲[1] 徐明明[1] 齐东来[1] 

机构地区：[1]天津工业大学环境与化学工程学院,天津300387

出　　处：《天津工业大学学报》2017年第2期42-47,共6页Journal of Tiangong University

基　　金：国家自然科学基金资助项目(21202117)

摘　　要：为获得绿色环保的喷丝板脱模剂,以环己烷代替传统工艺中的苯作为溶剂,以二甲基硅油、含氢硅油和苯基硅油为原料,合成喷丝板脱模剂,研究了喷丝板脱模剂的最佳合成工艺,并测试其应用性能,同时用傅里叶红外光谱仪及核磁共振仪对喷丝板脱模剂的结构进行表征.结果表明:环己烷与催化反应原料有很好的相容性,可替代传统工艺中毒性较大的苯作为绿色环保型溶剂;喷丝板脱模剂的最佳合成工艺条件为温度265℃,时间3 h,催化剂用量为0.2 g,二甲基硅油90 mL,苯基硅油20 mL,含氢硅油3 mL,环己烷50 mL;所合成的喷丝板脱模剂热失重率为3.11%(<5%),闪点330℃,成膜时间20 s以下,实际保板时间72 h,雾化效果好,高温下成膜迅速,可较好地应用于实际生产中.To ensure green environmental protection, by using cyclohexane as the reaction solvent to replace the ben-zene in the traditional process and dimethyl silicone oil, hydrogen-containing silicone oil and phenyl silicone oil as raw material, the injection mold release agent was synthesized, and the optimum synthesis conditions were studied. The application performance of the injection mold release agent synthesized under the optimum conditions was tested. At the same time, the structure of the injection mold release agent was characterized by IR and NMR. The results show that cyclohexane has good compatibility with raw materials of catalytic reaction, it is a kind of green environmental protection solvent which can replace toxic benzene in the traditional process. The optimum synthesis conditions of the injection mold release agent is reaction temperature is 265 ℃, reaction time is 3 h, the amount of catalyst is 0.2 g, dimethyl silicone oil is 90 mL, phenyl silicone oil is 20 mL, hydrogen containing silicone oil is 3 mL, cyclohexane is 50 mL. The heat loss rate of the injection mold release agent obtained is 3.11 %not greater than 5%, the flash point is 330 ℃, the film forming time is below 20 s , the cover plate time is 72 h, and it has good atomization effect and can form film quickly at high temperature. Therefore the injection mold release agent can be well used in the actual production.

关 键 词：二曱基硅油 喷丝板脱模剂 合成工艺 

分 类 号：TQ264.1[化学工程—有机化工]