国内外对位芳纶产品结构及性能对比分析研究  

Comparative Analysis and Research on the Structure and Performance of Aramid Fiber Products

作　　者：马福民 佘家全 梁劲松 严翔[3] 刘克杰 彭涛 姜猛进[3] MA Fu-min;SHE Jia-quan;LIANG Jin-song;YAN Xiang;LIU Ke-jie;PENG Tao;JIANG Meng-jin(The Fourth Military Representative Office of Xi'an Bureau of National Naval Equipment in Chengdu,Chengdu 610100,China;The Second Military Representative Office of the Rocket Force Armament Department in Chengdu,Chengdu 610101,China;College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,China;Sichuan Key Laboratory of High-tech Organic Fiber,Chengdu 610041,China)

机构地区：[1]海装西安局海装西安局驻成都地区第四代表室,四川成都610100 [2]火箭军装备部驻成都地区第二军事代表室,四川成都610101 [3]四川大学高分子科学与工程学院,四川成都610065 [4]高技术有机纤维四川省重点实验室,四川成都610041

出　　处：《塑料工业》2020年第11期94-99,共6页China Plastics Industry

基　　金：2019年四川省重大专项(2019ZDZX0016)。

摘　　要：收集了目前国内外常见对位芳纶及共聚改性产品Kevlar29、Technora、Armos、芳纶Ⅱ和芳纶Ⅲ。采用傅里叶红外光谱仪、X射线衍射仪、扫描电镜等对纤维的化学结构、聚集态结构、形貌结构进行表征,并采用纤维强度仪、热失重仪等对这些产品的力学性能和热性能进行了表征。结果证明,Technora中存在3,4-二胺基二苯醚结构,Armos和芳纶Ⅲ中存在苯并咪唑结构。Kevlar29和芳纶Ⅱ的结晶度相对较高,Armos和芳纶Ⅲ的取向度较高。五种纤维的截面都是比较标准的圆形,其中Armos和芳纶Ⅲ的单纤直径较大。Armos和芳纶Ⅲ两种杂环芳纶的力学性能最好,国产芳纶系列力学性能均高于国外同种产品。Kevlar29和芳纶Ⅱ的热分解温度较高,而Armos和芳纶Ⅲ的残炭率较高。This study collected the commercial para aramid and its modified products,Kevlar29,Technora,Armos,Aramid Ⅱ and Aramid Ⅲ.The chemical structure,aggregation structure and morphological structure of the fiber were investigated by Fourier infrared spectrometer,X-ray diffractometer and scanning electron microscope,and the mechanical and thermal properties of these products were characterized by fiber strength meter and thermogravimeter.The results prove that 3,4-2 amino diphenyl ether structure exists in Technora and Armos and Aramid Ⅲ have benzimidazole structures in their molecules.Kevlar29 and Aramid Ⅱ have relatively high crystallinity and Armos and aramid Ⅲ have relatively perfect orientation structure.These five kinds of fibers all have round shape cross sections.The diameters of Armos and Aramid Ⅲ are larger than those of others.Armos and Aramid Ⅲ have better mechanical properties than other aramid fibers.Kevlar29 and Aramid Ⅱ have higher thermal decomposition temperature than other modified aramid fibers,but Armos and aramid Ⅲ have the higher rate of carbon residue than other aramid fibers.

关 键 词：对位芳纶 聚集态结构 力学性能 热稳定性 

分 类 号：TQ34272[化学工程—化纤工业]