PMMA/EP IPNs的固化反应研究  

Study on the Curing Reaction of PMMA/EP IPNs

作　　者：季家友[1] 徐慢[1] 王亮[1] 祝云[1] 

机构地区：[1]武汉工程大学材料科学与工程学院,武汉430070

出　　处：《武汉理工大学学报》2014年第4期41-43,共3页Journal of Wuhan University of Technology

基　　金：国家自然科学基金青年基金(213005105);湖北省自然科学基金面上项目(2013CFB319);武汉市科技攻关项目(2013010501010138);湖北省科技厅省级科技项目(2013HB12);武汉工程大学青年科学基金(Q201301)

摘　　要：利用顺序互穿法制备了聚甲基丙烯酸甲酯(PMMA)/环氧(EP)互穿网络聚合物(IPNs)。通过差示扫描量热法(DSC)研究了PMMA/EP IPNs的固化反应动力学,用红外光谱法进一步确定了固化反应条件。结果发现,PMMA的加入会延缓EP的固化,固化表观活化能由EP的53.2kJ/mol上升到PMMA/EP IPNs的61.5kJ/mol;在固化工艺条件为45℃/18h+85℃/3h+130℃/3h时,PMMA/EP IPNs体系固化反应完全,能够满足固化工艺要求。Poly（methyl methacrylate）/epoxy interpenetrating polymer networks （IPNs） was prepared by sequential method. The curing kinetics of PMMA/EP IPNs was investigated by differential scanning calorimeter. The appropriate curing process was further determined by infrared spectrum. The results showed that the addition of PMMA delayed the EP curing, and the apparent activation energy was reduced from 53. 2 kJ/mol for EP to 61.5 kJ/mol for PMMA/EP IPNs. This PMMA/EP IPNs can cured perfectly under the curing condition of 45℃/18 h＋85 ℃/3 h＋130 ℃/3 h.

关 键 词：聚甲基丙烯酸甲酯 互穿网络聚合物 固化反应 

分 类 号：TQ326.53[化学工程—合成树脂塑料工业]