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腰果酚二醚曼尼希碱固化剂的合成及其相分离现象研究     被引量:2

Synthesis and Phase Separation Phenomena of Cardanol Diethers-Mannich Base Curing Agent

文献类型:期刊文献

中文题名:腰果酚二醚曼尼希碱固化剂的合成及其相分离现象研究

英文题名:Synthesis and Phase Separation Phenomena of Cardanol Diethers-Mannich Base Curing Agent

作者:宋健[1] 李梅[1,2] 李守海[1,2] 黄坤[1] 夏建陵[1,2]

第一作者:宋健

机构:[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,江苏南京210042;[2]中国林业科学研究院林业新技术研究所,北京100091

年份:2016

卷号:36

期号:5

起止页码:61-67

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:【CSCD2015_2016】;

基金:“十二五”国家科技支撑计划资助(2014BAD17B00);中国林科院林业新技术所基本科研业务费专项资金(CAFINT2015C04);江苏省生物质能源与材料重点实验室开放基金(JSBEM-S-201508)

语种:中文

中文关键词:腰果酚;相分离;固化剂;环氧树脂;酚醛胺;Mannich反应

外文关键词:cardanol; phase separation; curing agent; epoxy resin; phenol-aldehyde amine; Mannich reaction

分类号:TQ35

摘要:腰果酚(CD)和1,3-二溴丙烷经Williamson醚化反应得到一种腰果酚二醚化合物(CDE),然后以CDE、多聚甲醛和二乙烯三胺为原料,经Mannich反应制备得到一种浅色的腰果酚二醚曼尼希碱固化剂(MBCDE)。通过傅里叶红外光谱(FT-IR)和核磁共振氢谱(^1H NMR)表征了产物的化学结构,并与氨乙基哌嗪(AEP)进行对比研究其相关性能。通过热重分析(TGA)、扫描电镜(SEM)和力学性能测试研究了两种固化剂与双酚A环氧树脂(DGEBA)固化材料的相关性能。结果表明:MBCDE/DGEBA的最大分解温度为351.6℃,具有良好的热稳定性。AEP/DGEBA环氧固化物的冲击强度为3.641 J/m,而添加80%的MBCDE后固化物的冲击强度则为5.155 J/m,提高了41.6%。SEM分析结果表明MBCDE固化材料中存在相分离。
The cardanol diethers( CDE) was obtained from Williamson etherification of cardanol( CD) and 1,3-dibromopropane.Then the cardanol diethers-Mannich baseas curing agent( MBCDE) for epoxy resins was prepared from the Mannich reaction of CDE, paraformadehyde and diethylenetriamine. The chemical structure was confirmed by FT-IR and^1H NMR.N-Aminoethylpiperazine( AEP) was chose as a control to investigate the toughening properties of MBCDE. Thermogravimetric analysis( TGA),scanning electronic microscopy( SEM) and mechanical properties of the cured epoxies were also conducted to investigate the properties of the bisphenol A epoxy resin( DGEBA) cured by two curing agents. The TGA results showed that the maximum decomposition temperature of MBCDE was 351. 6 ℃ and the sample had good thermal stability. The impact strength of cured AEP/DGEBA was 3. 641 J/m,while the cured 80% MBCDE sample had an impact strength of 5. 155 J/m,which was improved by 41. 6%. SEM results indicated that there was phase seperation in the cured materials contained MBCDE.

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