对位芳纶沉析纤维性能研究  

Study on the performances of the Para-aramid fibrid

作　　者：江明[1] 张美云[1] 陆赵情[1] 杨斌[1] 刘俊华[1] 

机构地区：[1]陕西科技大学陕西省造纸技术及特种纸品开发重点实验室,西安710021

出　　处：《功能材料》2014年第8期8075-8078,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)重大资助项目(2012AA03A208);陕西省科技统筹创新工程计划资助项目(2011ktcg01-19);陕西省工业攻关资助项目(2011K08-08)

摘　　要：采用SEM、AFM、FT-IR、XRD和TGA对新型芳纶材料对位芳纶沉析纤维的表面形貌、化学结构、结晶程度和热学特性4个方面进行了分析检测,为研究对位芳纶沉析纤维的结构性能奠定实验基础,有利于其作为复合增强材料的广泛应用。结果表明,对位芳纶沉析纤维是非粒状且尺寸较小,外形上既像纤维又像薄膜,表面粗糙,形态柔顺;纤维具有仲酰胺结构特征;纤维结晶度为28.55%,非晶化的成分较多,且晶粒尺寸较小;纤维初始分解温度为490℃,TG10%为550℃,分子链结构稳定,热学性能优异。The surface morphology,chemical structure,degree of crystallinity and thermal properties of Para-aramid fibrid were studied by using SEM,AFM,FT-IR,XRD and TGA.This paper was used to offer an experimental foundation for promoting its extensive use as one kind of composite reinforced materials.Results indicated that Para-aramid fibrid was non-granular and small-sized,it had a fiber or film looking,roughness surface, supple shape.The fiber had a secondary amide structure,and its crystallinity was 28.55percent.As a result,it contained amounts of amorphous compositions,and the crystalline size in fibers was tiny.The initial decomposition temperature of fiber was 490℃,TG10% was 550 ℃,thus demonstrated its stable molecular chain structure and excellent thermal properties.

关 键 词：对位芳纶 沉析纤维 结构 性能 

分 类 号：TQ342[化学工程—化纤工业]