Effect of Thermal Pressing Temperature on the Crystalline Characteristics of Aramid Paper

摘要：

　　Para aramid fiber,named poly p-phenylene terephthanalamide phenylenediamine or PPTA.Because of the group of terephthalamide on the molecule structure separate from the benzene and come in to the π conjugate domino effect.The molecule chain present rigidity,the good linear structure formation.Thus it has high strength,high modulus,high temperature,acid-resistant,corrosion-resistant properties.The crystalline Characteristics of polymers have important influence on their physical and mechanical properties.So the crystalline properties of aramid fiber and PPTA paper-based materials were studied by XRD.The results show that the crystallinity of the para-aramid short-cut fiber is higher than the para-aramid fibrid.After wet forming,the more the thermal pressing temperature increased,the higher increasing of the crystallinity of paper.When the thermal pressing temperature was 220℃,the paper crystallinity was 81%,and the tensile strength is also increased.However,the temperature reaches 240℃,the crystallinity decreases,the performance of the paper is brittle,and the physical property is decreased.

关键词： thermal Pressing aramid fiber aramid Paper crystalline

作者: Tao Li Meiyun Zhang Yinghua Ma

作者单位: College of Industry and Energy,Shaanxi University of Science & Technology Xian,Shaanxi,710021,China College of Industry and Energy,Shaanxi University of Science & Technology Xian,Shaanxi,710021,China Department of Chemical Engineering,Shaanxi Institute of Technology Xian,Shaanxi,710302,China

会议类型: 国际会议

会议名称: 第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)

会议地点: 广州

会议语种:英文

页码: 1-6

在线出版日期: 2016-11-07（万方平台首次上网日期，不代表论文的发表时间）