摘要
通过沉析法制备芳纶1313沉析纤维,采用纤维长度测试、TGA、XRD和SEM等测试方法对沉析纤维的形貌结构和性能进行表征,用脱水时间表征芳纶1313沉析纤维与短切纤维在抄纸过程中的脱水性能,并对纸张的力学性能及电绝缘性能进行研究。结果表明:随着芳纶1313沉析纤维分子量的增加,其纤维平均长度增大,纸张的抗张强度、断裂伸长率及撕裂度都增强,电绝缘性能提升。沉析纤维为非结晶结构,随着分子量增加,能形成膜状结构,其热稳定性增加,但比短切纤维的热稳定性稍差。
An aramid 1313 fibrid was prepared by precipitation method,and its morphology structure and properties were characterized by fiber length test,thermogravimetric analysis(TGA),X-Ray diffraction(XRD),scanning electrical microscopy(SEM).The dewaterability of aramid 1313 fibrids and chopped fibers in the papermaking process was evaluated by dewatering time,and the mechanical properties and electrical insulation properties of the paper were studied.The results show that with the increase of molecular weight of aramid 1313 fibrid,the average length of fibrids increases,and the tensile strength,elongation at break,tearability,and insulating properties of the paper increase.The fibrid is non-crystalline structure.With the increase of molecular weight,it becomes to film structure,and the thermostability increases.However,the thermostability of chopped meta-aramid fiber is still higher than that of aramid 1313 fibrids.
作者
杨军
杨清
宋欢
丁娉
王进
陈磊
王宜
胡健
YANG Jun;YANG Qing;SONG Huan;DING Ping;WANG Jin;CHEN Lei;WANG Yi;HU Jian(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412007,China;South China University of Technology,Guangzhou 510640,China)
出处
《绝缘材料》
CAS
北大核心
2021年第4期26-30,共5页
Insulating Materials
