摘要
以八甲基环四硅氧烷(D4)或六甲基环三硅氧烷(DMC)、乙烯基双封头剂、乙烯基环体、六甲基二硅氧烷等为原料,四甲基氢氧化铵为催化剂合成了摩尔质量和乙烯基含量不同的乙烯基硅油;以高含氢硅油、含氢双封头剂、D4合成实验所需的含氢硅油;以白炭黑为填料通过密炼等工序制备了医用高透明液体注射硅橡胶。结果表明,若制备高透明度的医用液体硅胶需要比表面积大于300 m2/g的气相白炭黑为填料,用干法比湿法处理白炭黑效果好且符合FDA等医用要求,当铂金质量分数为(2.0~2.5)×10-5,抑制剂质量分数为0.10%~0.16%时,能够满足液体注射成型硅橡胶的加工性能和成型周期性。
Use D4 or dimethylcyclic siloxane DMC,vinyl di-blocking agent,ringy vinyl,hexamethyl-disiloxane as raw materials,tetramethyl hydroxyl ammonium as catalyst,we synthesized a vinyl silicone oil.Use H-oil,hydrogen blocking silicone oil,hexamethyl-disiloxane,D4 to synthesized the needed hydrogen silicone oil.Use silica as filler,through grinding and packaging process,a high transparency and high strength liquid injection silicone rubber used for medicine was produced.The results showed that to fabricate a high transparency and strength liquid injection silicone the gas white silica of 300m^2/g as filler was needed.Dry silica treatment instead of wet silica treatment can lead to better performance and environment compliance and can satisfy the special request of food grade and iatrical grade silicone rubber.When the Pt catalyst mass percent was(2.0～2.5)×10^(-5) ppm and desactivators mass percent was 0.10%～0.16%,the processing performance of silicone rubber and molding period were good.
出处
《弹性体》
CAS
2006年第6期21-25,共5页
China Elastomerics
关键词
医用硅橡胶
加成型
液体注射成型
生物相容性
iatrical grade silicone rubber
addition cure
liquid injection
biology consistency
作者简介
许永现(1973-),男,安徽宿州人,高级工程师,主要从事加成型固体、液体硅橡胶产品的研发和生产工作.
