液晶环氧树脂对生物基腰果酚-糠醛树脂性能的影响  

Effects of Liquid Crystalline Epoxy Resin on the Properties of Bio-based Cardanol-furfural Resin

作　　者：张凯强 唐功文 闫志山 马林荣 黄鑫 ZHANG Kaiqiang, TANG Gongwen, YAN Zhishan, MA Linrong, HUANG Xin(The Institute of Seawater Desalination and Multipurpose Utilization, State Oceanic Administration, Tianjin 300192, China)

机构地区：[1]国家海洋局天津海水淡化与综合利用研究所,天津300192

出　　处：《林产化学与工业》2018年第4期41-46,共6页Chemistry and Industry of Forest Products

基　　金：中央级公益性科研院所基本科研业务费专项资金(K-JBYWF-2016-T18;K-JBYWF-2017-T17)

摘　　要：采用偏光显微镜、差示扫描量热仪、热重分析仪、扫描电镜以及力学性能测试仪研究了液晶环氧树脂对生物基腰果酚-糠醛树脂热性能及力学性能的影响,结果表明:联苯二酚二缩水甘油醚(BP)与对氨基苯氨基砜(SAA)经高温固化后可形成液晶(LC)相结构,将BP、SAA与腰果酚-糠醛树脂共混固化,BP与SAA生成的LC相可分散在生物基腰果酚-糠醛树脂基体中,改性树脂的热稳定性及力学性能显著提高。BP-SAA添加量为50%时,玻璃化转变温度由60.4℃提高到70.2℃,热分解温度由300.3℃提高至377.4℃;BP-SAA添加量为30%时,冲击强度达到最大值15 kJ/m2,为未改性的生物基腰果酚-糠醛树脂(4.5 kJ/m2)的3倍。By using polarized optical microscopy, differential scanning calorimetry, scanning electron microscopy and impact strength measurements,the effects of liquid crystalline on the morphologies, thermal properties and mechanical properties of the composite resins were studied. It was found that the synthesized 4,4-diglycidyloxybiphenyl （BP） and sulfanilamide （SAA） were used to generate novel liquid crystalline （LC） epoxy resins notably. The results revealed that the curing of the cardanol-furfural resins was accelerated and the thermal properties were considerably improved by adding the LC epoxy resins.When the addition of BP-SAA was 50%, the glass transition temperature increased from 60.4 ℃ to 70.2 ℃, and the thermal decomposition temperature increased from 300.3 ℃ to 377.4 ℃, respectively. When the addition of BP-SAA was 30%, the impact strength of the modified resins was 15 kJ/m 2 and about three-fold higher than that of the unmodified counterpart.

关 键 词：生物基 腰果酚-糠醛树脂 液晶环氧树脂 冲击强度 

分 类 号：TQ3[化学工程]