文献类型：期刊文献

中文题名：生物基本征型阻燃环氧树脂的制备及其性能研究

英文题名：Preparation and Performance of Bio-based Intrinsic Flame-retarding Epoxy Resin

作者：潘政[1] 李卓[1] 薄采颖[1] 冯国东[1] 杨晓慧[1] 胡立红[1]

第一作者：潘政

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,江苏林业资源高效加工利用协同创新中心,江苏南京210042

年份：2022

卷号：42

期号：1

起止页码：71-78

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2020】；CSCD:【CSCD2021_2022】；

基金：国家重点研发计划资助项目(2019YFB1503804)。

语种：中文

中文关键词：生物基材料;环氧树脂;本征型阻燃;二苯甲酮

外文关键词：biomaterials;epoxy resin;intrinsic flame retardance;benzophenone

分类号：TQ35

摘要：以香草酸、间二苯酚和表氯醇为原料,采用简单两步法合成了环氧单体1,3,3’-三环氧乙烷-2’-甲氧基-二苯甲酮(DEBP),并进一步和4,4-二氨基二苯砜(DDS)加热混合固化制得对应的环氧树脂DEBP/DDS,与常用的双酚A型环氧树脂(DGEBA)的DDS固化进行对比。研究结果表明:DEBP单体具有比DGEBA单体更高的固化活性。DEBP/DDS环氧树脂的玻璃化转变温度为183℃,也高于DGEBA/DDS树脂。DEBP/DDS环氧树脂机械性能更为优越,弯曲模量和弯曲强度分别为2437.8和98.6 MPa,拉伸模量和拉伸强度分别为2523.4和71.1 MPa,均高于DGEBA/DDS环氧树脂。DEBP/DDS环氧树脂表现出更好的阻燃性能,在800℃的残炭量达到了35%,极限氧指数(LOI)达到34%,垂直燃烧等级为UL-94 V-0,总释放热仅为17.8 kJ/g。在不引进任何阻燃元素的情况下,由生物基原料合成了有很大潜力的本征型阻燃环氧树脂。
The epoxy monomer 1,3,3’-tri-oxirane-2’-methoxy-benzophenone(DEBP)was synthesized with vanillic acid,m-diphenol,epichlorohydrin and so on as raw materials by simple two-step method.And DEBP was structurally characterized and determined via FT-IR,and was then mixed with 4,4'-diaminodiphenylsulfone(DDS),followed by heating and curing to obtain DEBP/DDS epoxy resin.For comparative purpose,commercially used diglycidyl ether of bisphenol A(DGEBA)was cured with the identical curing agent was used as a control.The results showed that DEBP monomer had higher curing activity than that of DGEBA monomer.The glass transition temperature of DEBP/DDS epoxy resin was 183℃,which was higher than that of DGEBA/DDS.The DEBP/DDS epoxy resin outperformed DGEBA/DDS epoxy resin in terms of flexural and tensile properties.The flexural modulus and strength of DEBP/DDS epoxy resin were measured as 2437.8 and 98.6 MPa and the tensile modulus and strength of DEBP/DDS were 2523.4 and 71.1 MPa.The cured DEBP/DDS also demonstrated excellent flame retardant property.The char residue at 800℃reached 35%,the limiting oxygen index(LOI)was 34%,the UL 94 level was V-0 and the total heat release was measured as 17.8 kJ/g.This research suggested that without indroducing any flame retardant element,an intrinsic flame-retarding epoxy resin was synthesized with bio materials.