基于淀粉液化APF树脂的固化动力学研究  

Curing Kinetics of APF Resin Based on Liquified Amylum

作　　者：刘雪纯 王凯伦 甘卫星 陈绪高 张晨晨 LIU Xue-chun;WANG Kai-lun;GAN Wei-xing;CHEN Xu-gao;ZHANG Chen-chen(School of Resources,Environment and Materials,Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学资源环境与材料学院

出　　处：《林产工业》2018年第11期6-10,共5页China Forest Products Industry

基　　金：国家科技支撑计划项目(2015BAD14B03);广西科技重大专项(桂科AA17204067);国家自然科学基金项目(31360158)

摘　　要：采用非等温差热分析法(DSC)对液化淀粉改性酚醛树脂(APF)的固化行为及固化动力学进行了研究。由Kissinger和Ozawa等方法计算得到固化反应的表观活化能(E_a)、反应级数(n)及频率因子(A),进而建立了APF树脂的固化反应动力学模型。结果表明,相比PF树脂,APF树脂的固化反应起始温度(T_i)由99.4℃增至100.3℃,峰值温度(T_p)由127.8℃降至122.1℃,终止温度(T_f)由150.2℃降至146.3℃,表观活化能(E_a)由96.94 kJ/mol降至87.94 kJ/mol。APF树脂的贮存稳定性更好,并可在较低的固化温度下固化,固化反应更容易进行。APF树脂的固化反应动力学模型为da/dt=9.56#10^(10 e-87940/RTP)^1-ah^(0.9385)。The curing behavior and curing kinetics of modified phenolic resin based on liquified amylum(APF)were studied by differential scanning calorimetry(DSC).The curing kinetic parameters such as apparent activation energy(Ea),reaction order(n)and frequency factor(A)were calculated using Kissinger and Ozawa methods.Furthermore,the curing kinetic model of APF resin was established.Compared with PF resin,the curing initial temperature(Ti)was increased from 99.4℃to 100.3℃,the peak temperature(Tp)was reduced from 127.8℃to 122.1℃,the curing final temperature(Tf)was reduced from 150.2℃to 146.3℃,and the apparent activation energy(Ea)was reduced from 96.94 kJ/mol to 87.94 kJ/mol.The results showed that APF resin with better storage stability could be cured easily under a lower temperature than PF resin.The curing reaction kinetic model of APF resin was da/dt=9.56#10^10e^-87940/RT^1-ah^0.09385.

关 键 词：APF树脂 DSC 固化动力学 

分 类 号：TQ32[化学工程—合成树脂塑料工业]