摘要
用γ 氯丙基三乙氧基硅烷 (CPOS)、钠、硫及含硫化合物合成双 [3 (三乙氧基 )硅丙基 ]四硫化物 ,找出了最佳工艺条件 :m(CPOS)∶m(Na)∶m(Na2 S)∶m(S) =72∶(2 .5～ 3)∶15∶(15～ 18) ;温度控制在 75℃ ;回流 4h。w (S) =2 2 3% ,转化率达 96 %以上。经多家用户检验和使用 ,在橡胶中补强和粘合作用良好 。
Bis-[3-(triethoxy)silylpropyl]tetrasulfide was synthesized by use of r-chloropropyl-triethoxysilane (CPOS), sodium, sulfur and sulfide as main raw materials. The optimum process conditions were found: m(CPOS):m(Na):m(Na2S):m(S) = 72:(2.5-3):15:(15-18), temperature 75°C and reflux time 4h. Total sulfur of the product amounts to 22.3% and the conversion is about 96%. The users have proved that it has stable quality and good reinforcing and adhesion actions on rubber.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2001年第9期538-540,共3页
Fine Chemicals
基金
山东省科委科技发展计划课题(鲁科技字 [97]第 2 17号 )&&
