TLCP含量对TLCP/PF复合体系固化反应动力学的影响  

Effects of TLCP Contents on Curing Kinetic of TLCP/PF Blends

作　　者：党晓东[1] 韦春[1] 徐伟华[1] 苏乐[1] 

机构地区：[1]桂林理工大学材料科学与工程学院有色金属及材料加工新技术教育部重点实验室,广西桂林541004

出　　处：《塑料科技》2012年第8期31-34,共4页Plastics Science and Technology

基　　金：国家自然科学基金(51163003);广西自然科学基金(2010GXNSFA013030;2012GXNSFBA053153;2012GXNSFBA053155);广西科技厅项目(09-007-02-19)资助

摘　　要：采用非等温DSC方法研究了不同升温速率下热致性液晶聚酯酰亚胺(TLCP)/酚醛树脂(PF)复合体系的固化行为,利用3种现象学模型(Ozawa及Kissinger简单模型、Kissinger-Akahira-Sunose(KAS)等转化模型)分析对比了TLCP/PF复合体系及纯PF体系的固化反应动力学,研究了不同含量的TLCP对TLCP/PF复合体系固化反应动力学的影响。结果表明:采用Ozawa和Kissinger 2种方法计算得到的TLCP/PF复合体系的固化反应活化能(Ea)结果一致;TLCP的加入一定程度上影响了PF的固化反应,改变了PF的Ea;当TLCP的质量分数为3%时,Ea最小。The curing behaviors of thermotropic liquid crystalline polyester-imide（TLCP）/phenol formaldehyde resin（PF） blends was studied by non-isothermal DSC method. The curing kinetics of TLCP/PF blends and pure PF resins were compared and the effects of TLCP contents on the curing kinetics were investigated by three phenomenological models（including Ozawa and Kissinger simple models and Kissinger-Akahira-Sunose （KAS） isoconversional method）. The results show that： the activation energy （Ea） datas of the TLCP/PF blends calculate by Kissinger consistent with Ozawa models. The curing reaction of PF is affected and the Ea is changed with the addition of TLCP. When TLCP content is 3%, the Ea of TLCP/PF blends is minimum.

关 键 词：热致性液晶聚酯酰亚胺 酚醛树脂 固化动力学 等转化模型 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]