桐油基非离子型自乳化水性环氧固化剂的制备及性能  

Preparation and Properties of Non-ionic Self-emulsified Waterborne Epoxy Curing Agents Derived from Tung Oil

作　　者：杨小华[1] 丁海阳[1] 李守海[1] 许利娜[1] 林雅玫 李梅[1] YANG Xiaohua;DING Haiyang;LI Shouhai;XU Lina;LIN Yamei;LI Mei(Institute of Chemical Industry of Forest Products,CAF,National Engineering Lab. for Biomass Chemical Utilization, Key Lab.of Chemical Engineering of Forest Products,National Forestry and Grassland Administration, Key Lab.of Biomass Energy and Material,Jiangsu Province,Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China)

机构地区：[1]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,国家林业和草原局林产化学工程重点实验室,江苏省生物质能源与材料重点实验室,江苏省林业资源高效加工利用协同创新中心,江苏南京210042

出　　处：《林产化学与工业》2020年第3期92-98,共7页Chemistry and Industry of Forest Products

基　　金：江苏省自然科学基金面上项目(BK20171131);中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2020ZE004)。

摘　　要：桐马酸酐(TMA)先与三乙烯四胺经酰胺化反应制得桐油基聚酰胺固化剂(TMAPA),TMAPA再与聚乙二醇二缩水甘油醚经开环加成、多聚甲醛封端部分伯胺后得桐油基非离子型水性环氧固化剂(TMAWCA),利用红外光谱和1H NMR表征了中间产物和目标产物的结构。结果表明:TMAWCA的结构参数与设计的分子结构基本吻合,其具有乳化疏水性液体环氧树脂的功能,疏水性双酚F型环氧树脂NPEF-170与TMAWCA复配体系,在m(NPEF-170)∶m(TMAWCA)=1.5∶2条件下,选择25℃/4 h+60℃/4 h+80℃/2 h固化温度进行固化,NPEF-170/TMAWCA体系漆膜性能较佳:漆膜的附着力达1级、柔韧性达1 mm、铅笔硬度达H、抗冲击强度达50 kg/cm、耐水性>7 d,水接触角为85°。The adduct of eleostearic acid methyl ester and maleic anhydride(TMA),was carried out the amidation reaction with triethylenetetra mine were performed to achieve polyamide curing agent derived from tung oil(TMAPA).Then,ring-opening addition of TMAPA with polyethylene glycol diglycidyl ether,followed by termination reaction between paraformaldehyde and primary amine,by which non-ionic waterborne epoxy curing agents derived from tung oil(TMAWCA)was obtained.The chemical structure of the intermediates and the targeted products were confirmed by Fourier transform infrared spectroscopy(FT-IR)and proton nuclear magnetic resonance(1H NMR).The result showed that the targeted products could emulsify hydrophobic liquid epoxy resin.It was found that the overall properties were best when the mass ratio of hydrophobic bisphenol F epoxy resin NPEF-170 and TMAWCA was 1.5∶2 and the curing temperature was 25℃/4 h+60℃/4 h+80℃/2 h.The properties of the two-component film of NPEF-170/TMAWCA were as follows:adhesion level 1,flexibility 1 mm,pencil hardness H,impact resistance 50 kg/cm,water resistance>7 d,and water contact angle 85°.

关 键 词：桐马酸酐 酰胺化反应 非离子型 水性环氧固化剂 合成 性能 

分 类 号：TQ35[化学工程]