PET/SiO_2纳米复合纤维的力学性能和微观结构
Mechanical Properties and Microstructure of PET/SiO_2 Nanocomposites Fiber

张献 ¹ 田兴友 ¹ 郑瑾 ¹ 姚霞银 ¹ 刘文涛 ² 崔平 ¹ ^* 李勇 ¹

文摘	考察了纳米SiO_2对P肌纤维力学性能的影响,并采用WAXD、FT-IR、DSC、双折射等手段对纤维的微观结构进行了表征.研究表明,纳米SiO_2的加入提高了PET纤维的力学性能,且PET/SiO_2纳米复合纤维在结晶度略有降低的情况下,非晶区取向度明显提高.非晶区取向度的提高是PET/SiO_2纤维力学性能提高的根本原因.
其他语种文摘	The influence of SiO_2 nanoparticles on the mechanical properties of PET fiber was investigated and the structure was studied using the methods of WAXD, DSC, FT-IR, Birefringence measurements, etc. The results show that mechanical properties of PET fiber are improved through SiO_2 incorporation. The amorphous orientation factor of PET/SiO_2(PETS) fiber is higher than that of pure PET (PETO) fiber, while the crystallinity is slightly lower than PETO fiber. It is suggested that the increase of amorphous orientation factor contributes to the improvement of mechanical properties of PET fiber. The results of FT-IR indicate that incorporation of nano-SiO_2 improves the orientation degree of PET resin by in-situ polymerization, and macromolecular chains are easier to parallel orient during spin-draw processing, which contributes to the increase of amorphous orientation of PETS fiber. Thus, mechanical properties of PETS fiber are improved.
来源	高分子材料科学与工程 ,2009,25(4):55-57 【核心库】
关键词	纳米复合纤维 ; 聚对苯二甲酸乙二酯 ; 模量 ; 非晶区取向度
地址	1. 中国科学院固体物理研究所, 中科院材料物理重点实验室, 安徽, 合肥, 230031 2. 郑州大学材料科学与工程学院, 河南, 郑州, 450052
语种	中文
文献类型	研究性论文
ISSN	1000-7555
学科	一般工业技术
基金	国家科技支撑计划项目 ; 浙江省宁波市自然科学基金 ; 浙江省宁波市科技攻关项目
文献收藏号	CSCD:3583000