防X射线稀土/聚丙烯复合纤维的制备及性能研究  

Preparation and Properties of X-ray Shielding Rare Earth/Polypropylene Composite Fibers

作　　者：谷春燕[1] 孙宽[1] 张玉芳[1] 贾清秀[1] Gu Chunyan Sun Kuan Zhang Yufang Jia Qingxiu(Beijing Institute of Fashion Technology, Beijing 100029, China)

机构地区：[1]北京服装学院,北京100029

出　　处：《稀有金属材料与工程》2017年第9期2633-2638,共6页Rare Metal Materials and Engineering

基　　金：国家自然科学基金面上项目(51273005);北京市教委市属高校创新能力提升计划项目(TJSHG201510012014);北京市教委科技发展计划重点项目暨北京自然科学基金资助重点项目(KZ201110012016);北京市教委青年拔尖人才项目(CIT&TCD201404023)

摘　　要：通过密炼机将纳米稀土和聚丙烯(PP)共混,然后对共混物进行熔融纺丝,采用红外、差示扫描量热、X射线衍射、扫描电子显微镜测试等手段对所得纤维进行结构性能表征,并将短纤维层压作防辐射测试。实验结果表明,氧化镧质量分数在60%以内,其在聚丙烯基体中呈纳米级不均匀分散;随着氧化镧加入量的增加,铅当量也相应增加,稀土/聚丙烯复合防护纤维具有较好的X射线防护功能。Rare earth/Polypropylene（PP） shielding fibers filled with different contents of rare-earth have been prepared by melt spinning. The fibers were characterized by the Fourier-transformed infrared spectroscopy（FT-IR）,differential scanning calorimetry（DSC）,X-ray diffraction spectroscopy（XRD）,and scanning electron micrographs（SEM）. Short fibers were compression-molded for the test of lead equivalent. The results show that when the rare earth content is less than 60 wt%,rare earth can be dispersed in the PP matrix with nano-scale,and X-ray shielding performance of the fibers is enhanced with the increase of content of rare-earth.

关 键 词：稀土 防X射线 纤维 铅当量 

分 类 号：TQ342.94[化学工程—化纤工业]