新型耐高温高闪点导热油—1,3-二辛基1,1,3,3-四苯基二硅氧烷的合成  

Synthesis of 1,3-dioctyl-1,1,3,3-tetraphenyl disiloxane with high thermal stability and flash point

作　　者：刘天洋[1] 曹志伟[2] 樊星[2] 兰琼[2] 曹克[1] 黄亚文[1] 刘彤[1] 杨军校[1] 

机构地区：[1]西南科技大学材料科学与工程学院,绵阳621010 [2]中国工程物理研究院化工材料研究所,绵阳621010

出　　处：《化工新型材料》2014年第2期83-85,共3页New Chemical Materials

基　　金：工信部"高档数控机床与基础制造装备"科技重大专项课题资助(2011ZX04001-081)

摘　　要：通过二苯基二氯硅烷与辛基格氏试剂进行选择性反应,然后经过水解以及分子间脱水两步反应生成1,3-二辛基1,1,3,3-四苯基二硅氧烷(OPDS)。并利用NMR、MS、IR对其结构进行了表征。采用国家标准对介质油的耐热和耐燃性能进行测试,结果表明,所合成的OPDS沸点>580℃,闪点>280℃,燃点>300℃,显示出高于常见介质油的耐热和耐燃性能,在耐高温导热油应用领域具有显著的应用价值。1,3-bisoctyl-1,1,3,3-tetraphenyl disiloxane（OPDS） was synthesized by two steps of hydrolysis and dehy-dration reactions of a monofunctional disiloxane precursor which was prepared by a monosubstituting reaction of 1,1-di-phenyl-1,1-dichlorosilane with octyl grinard reagent. The structure of OPDS was characterized by NMR, MS and IR. Heat and flameresisting performance of OPDS was evaluated by standard methods. The results showed that its boiling point, flash point and flaming point were higher than 580℃, 280℃ and 300℃, respectively, demonstrating outstanding heat and flame resistance. Derivative transfer oils displaied significant application potential in high temperature uses.

关 键 词：硅氧烷 耐高温 高闪点 导热油 

分 类 号：O634.41[理学—高分子化学]