摘要
以二苯基硅二醇、甲苯二异氰酸酯和八氟戊醇为主要原料合成了一种含氟有机硅改性剂(FSM),将其与环氧树脂及固化剂混合制备环氧复合材料,这种材料具有机硅和有机氟的特性。通过热失重分析、接触角分析、表面元素分析、冲击强度分析,得出该复合材料中当含氟有机硅改性剂的含量达到20 phr时,最大热失重速率温度达到375℃,接触角达到120.8°;当含氟有机硅改性剂的含量达到15 phr时,冲击强度相比于纯环氧树脂上升了83%。同时该改性剂的分子结构中含有能与环氧树脂固化的活性基团,在与异佛尔酮二胺的复配使用中,既起到了改性剂的作用,又起到了固化剂的作用。
A fluorinated silicone modified agent was prepared via polymerization of diphenyl silicone glycol,toluene diisocyanate and octafluoro pentanol,and then was mixed with epoxy resin and curing agent,after that got epoxy composites. This material has characteristics of organic silicon and organic fluorine. The thermal gravimetric analysis,contact angle analysis,surface elemental analysis and impact strength analysis were used to study epoxy composites. It comes to the conclusion that when the content of fluorine containing silicone modified agent reaches 20 phr,the maximum heat loss rate temperature reaches 375 ℃ and the contact angle is 120. 8°. And the impact strength increases by 83% compared to the pure epoxy resin when the content of fluorine containing silicone modified agent reaches 15 phr. The molecular structure of the modifier contains the active groups which can cure epoxy resin,so it has effects of modifier and curing agent.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2015年第12期120-125,共6页
Polymer Materials Science & Engineering
基金
吉林省科技厅科技发展计划资助项目(20120319)
关键词
环氧树脂
含氟有机硅
热稳定性
疏水性
epoxy resin
fluorinated silicone
thermal stability properties
hydrophobic properties
