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.
出处
《塑料科技》
CAS
北大核心
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
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
Thermotropic liquid crystalline polyester-imide
Phenol formaldehede resin
Curing kinetics
Isoconversional model
