文献类型：期刊文献

中文题名：腰果酚基环氧磷酸酯对E-51/IPDA环氧树脂体系性能的影响

英文题名：Effects of Cardanol-based Epoxidized Phosphate on the Properties of E-51/IPDA Epoxy Resin System

作者：霍淑平[1,2] 陈健[1] 刘贵锋[1,2] 吴国民[1,2] 孔振武[1,2]

第一作者：霍淑平

机构：[1]中国林业科学研究院林业新技术研究所;[2]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室

年份：2017

卷号：37

期号：6

起止页码：28-34

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：中国林科院林业新技术所基本科研业务费专项资金(CAFINT2015C02);江苏省生物质能源与材料重点实验室基金项目(JSBEM-S-201705)

语种：中文

中文关键词：腰果酚;稀释剂;环氧树脂;固化反应;机械性能

外文关键词：cardanol; diluent; epoxy resin; curing reaction; mechanical property

分类号：TQ351

摘要：以天然腰果酚为原料制备了一种腰果酚基环氧磷酸酯(CGEP)稀释剂,并利用CGEP改性双酚A型环氧树脂(E-51)及异佛尔酮二胺(IPDA)固化体系。研究了CGEP用量对环氧树脂E-51的稀释效果及其固化物性能的影响,并采用扫描电镜(SEM)分析了固化物的断面微观形貌。结果表明:CGEP对环氧树脂E-51具有显著的稀释作用;CGEP参与固化交联反应后,环氧树脂固化物的机械性能明显提高,当CGEP添加量为E-51质量的15%时,固化物的冲击强度达到最大值22.06 kJ/m^2;当CGEP添加量为E-51质量的20%时,固化物的拉伸强度与弯曲强度分别达到最大值96.19和99.70 MPa。随着CGEP用量从0%增加到25%,固化物的玻璃化转变温度由144.82℃降至119.10℃,而氧指数(LOI)由19.0提高到23.0。SEM分析表明CGEP对环氧固化物具有显著的增韧效果。
A cardanol-based phosphate epoxidized （CGEP） was synthesized using cardanol as feedstock. The curing system of bisphenol A epoxy resin（ E-51 ） and isophorone diamine（IPDA） was modified by CGEP in different mass ratios. The influences of CGEP on the viscosity of E-51 and on the properties of cured epoxy resins were investigated. The microstructure of fracture surface of cured epoxy resins was characterized by scanning electron microscope （SEM）. It was found that CGEP has significantly diluted the E-51 and involved in the curing reaction of epoxy resin. When the content of CGEP was 15 wt% with respect to E-51, the impact strength of cured epoxy resins reached the maximum 22.06 kJ/m2. When the content of CGEP was 20 % with respect to E-51, the tensile strength and bending strength of cured epoxy resins reached the maximum 96. 19 MPa and 99.70 MPa, respectively. With the increase of the amount of CGEP from 0% to 25%, the glass transition temperature （ Ts ） of the cured product decreased from 144. 82℃to 119. 10 ℃, while the oxygen index increased from 19.0 to 23.0. SEM analysis showed thatthe toughness of cured epoxy resins improved obviously.