摘要
采用特殊的表面修饰技术,制备了纳米级分散的乙二醇-TiO2溶胶,并用离心沉降的方法研究了表面修饰对TiO2表面性质的影响。通过双螺杆共混挤出制备了聚酰胺-6/纳米TiO2复合物,用SEM研究了复合物的微细两相结构。研究了复合物的可纺性,成功制备了含有纳米TiO2的功能性聚酰胺-6纤维,并对其功能性进行了研究。研究发现:与纳米TiO2复合后,PA6纤维的力学性能有所提高,复合物中纳米单元尺寸为64.2nm,功能性纤维中纳米单元尺寸为68.4nm,纤维的法向比辐射率(远红外辐射率)达86%。
With special surface modification techniques, ethyl glycol sol with nanometer sized titanium dioxide (nmTiO_2) was prepared. Effect of surface modification on the surface properties of nmTiO_2 was studied through centrifugation. Composites of PA6/nmTiO_2 were prepared and their spinnability was studied. Functional polyamide-6 filaments were manufactured then. Microstructure of composites was studied through scanning electron microscope (SEM). The result shows that nanoparticles compounded in the composites and fibers, with average diameters of (64.5) nm (composite) and (68.4) nm (fiber), are dispersed in the matrices homogeneously. Far-infrared radiativity of functional fibers approaches to (86%), and mechanical properties are improved obviously.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2004年第6期214-217,共4页
Polymer Materials Science & Engineering
基金
国家"863计划"纳米专项(2002AA302616)
上海市纳米专项(0219nm039)
中国石化项目(J200029)
2002跨世纪人才计划联合资助
关键词
纳米二氧化钛
聚酰胺-6
表面修饰
可纺性
远红外辐射
nanometer sized titanium dioxide
polyamide-6
surface modification
spinnability
far-infrared radiation
