文献类型：期刊文献

中文题名：叠氮苯并咪唑偶联剂增强国产芳纶Ⅲ/聚三唑树脂复合材料界面

英文题名：Interfacial reinforcement of domestic aramid fiber Ⅲ/PTA composites using azide-containing benzimidazole coupling agent

作者：刘冬冬[1];扈艳红[1];张芳芳[1];顾渊博[1]

机构：[1]华东理工大学材料科学与工程学院特种功能高分子材料及相关技术教育部重点实验室,上海200237

年份：2017

卷号：34

期号：2

起止页码：336

中文期刊名：复合材料学报

外文期刊名：Acta Materiae Compositae Sinica

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

基金：特种功能高分子材料及相关技术教育部重点试验室(B类)开放基金上海市重点学科项目编号(B502)

语种：中文

中文关键词：国产芳纶Ⅲ;聚三唑树脂;苯并咪唑;叠氮;偶联剂;界面增强

外文关键词：domestic aramid fiberⅢ（DAF-Ⅲ）; polytriazole（PTA）; benzimidazole; azide group; coupling agent; interfacial properties

摘要：通过分子设计制备合成了含叠氮及苯并咪唑双官能团的偶联剂Azido-Benzimidazole(ABI),并考察了新型偶联剂对国产芳纶Ⅲ(DAF-Ⅲ)/聚三唑树脂(PTA)复合材料的界面增强作用。SEM、傅立叶变换衰减全反射红外光谱(ATR-FTIR)及XPS分析表明,ABI通过分子结构中的苯并咪唑基团与DAF-Ⅲ纤维形成分子间氢键,能够作用到DAF-Ⅲ上。FTIR及DSC分析表明,ABI中的叠氮基团与PTA树脂中的炔基发生反应,生成三唑环参与了PTA树脂的固化。经2.1wt%ABI处理后,DAF-Ⅲ/PTA树脂复合材料层间剪切强度(ILSS)和弯曲强度分别较未处理时提高了62.0%和43.7%。
A new type of coupling agent Azido-Benzimidazole（ABI）containing benzimidazole and azide groups was designed and prepared in this study.And ABI was added into the domestic aramid fiberⅢ（DAF-Ⅲ）/polytriazole（PTA）composites to reinforce their interfacial properties.The results of SEM,Attenuated Total internal Reflectance Fourier Transform Infrared Spectroscopy（ATR-FTIR）and XPS show that ABI can bond with the fiber by intermolecular hydrogen;FTIR and DSC results indicate that the azide group in ABI can react with alkynyl in PTA and take part in the curing process synchronously.The mechanical performances of DAF-Ⅲ/PTA composite are improved greatly after ABI modification.The Inter Laminar Shear Strength（ILSS）and flexural strength increase by 62.0% and 43.7%respectively after 2.1wt% ABI treatment compared with those of untreated composites.