芳纶Ⅲ沉析纤维的制备及结构与性能研究  

Study on the Preparation,Structure,and Properties of Heterocyclic AramidⅢFibrids

作　　者：周万立 杨宽 王衡 何鑫业 ZHOU Wanli;YANG Kuan;WANG Heng;HE Xinye(China Bluestar Chengrand Chemical Co.,Ltd.,Chengdu,Sichuan Province,610041;China Bluestar Chengrand Co.,Ltd.,Chengdu,Sichuan Province,610041;High-Tech Organic Fibers Key Lab of Sichuan Province,Chengdu,Sichuan Province,610041)

机构地区：[1]中蓝晨光化工有限公司,四川成都610041 [2]中蓝晨光化工研究设计院有限公司,四川成都610041 [3]高技术有机纤维四川省重点实验室,四川成都610041

出　　处：《中国造纸》2025年第1期69-76,共8页China Pulp & Paper

摘　　要：将芳纶Ⅲ聚合物溶液注入高速搅拌的凝固浴中制备芳纶Ⅲ沉析纤维,并采用湿法抄纸技术制备了芳纶Ⅲ原纸,研究了杂环单体含量、聚合物相对分子质量等因素对聚合物溶液存储稳定性、沉析纤维结构及形貌、芳纶Ⅲ原纸力学性能的影响。结果表明,杂环单体含量高于30%才能制备稳定的芳纶Ⅲ聚合物溶液,高于40%时制备的沉析纤维具有较大的长径比,适宜抄纸;聚合物相对分子质量对沉析纤维的形貌有较大的影响,芳纶Ⅲ聚合物溶液表观黏度宜控制为10000~20000 cP,比浓对数黏度为2.4~5.5 dL/g,得到的沉析纤维具有较高长径比和比表面积,进一步制备的芳纶Ⅲ原纸力学性能优异。The heterocyclic aramidⅢfrbrid was prepared by injecting heterocyclic aramidⅢpolymerization solution into the solidfication bath with high speed stirring.The heterocyclic aramidⅢraw papers were further prepared via wet papermaking process.The effects of heterocyclic monomer content and polymer relative molecular weight on the storage stability of the heterocyclic aramidⅢpolymerization solution,the structure and morphology of the heterocyclic aramidⅢfibrids were studied.The effects on the mechanical properties of the heterocyclic aramidⅢraw papers were discussed.The results showed that the stable heterocyclic aramidⅢpolymerization solution could be prepared only when the heterocyclic monomer content was higher than 30%,and the fibrids prepared with heterocyclic monomer content higher than 40%had a larger ratio of length to diameter,which was suitable for papermaking.The polymer relative molecular weight had a great influence on the appearance of the fibrids.The fibrids prepared by the heterocyclic aramidⅢpolymerization solution with apparent viscosity in 10000~20000 cP,and the specific concentration logarithmic viscosity of 2.4~5.5 dL/g,had a higher ratio of length to diameter and specific surface area,and the further prepared heterocyclic aramidⅢraw papers had excellent mechanical properties.

关 键 词：杂环芳纶 芳纶Ⅲ沉析纤维 芳纶纸 形貌 

分 类 号：TS722[轻工技术与工程—制浆造纸工程]