腈纶废丝/硬脂酸相变纤维的制备及性能研究  

Preparation and Properties of Polyacrylonitrile Fiber/Stearic Acid Composites as Phase Change Fibers

作　　者：郭静[1] 相恒学[1] 王倩倩[1] 尚祖明[1] 

机构地区：[1]大连工业大学化工与材料学院,大连116034

出　　处：《材料导报》2011年第6期77-79,共3页Materials Reports

基　　金：辽宁省教育厅重点实验室项目(LS2010010)

摘　　要：以硬脂酸(SA)为相变储能物质,腈纶废丝(PAN)为聚合物基体,采用湿法纺丝法制备了PAN/SA相变纤维。研究表明,相变纤维中PAN与SA大分子依靠分子间作用力结合在一起;SA在纤维基体中分布均匀,无相分离现象;PAN/SA相变纤维的相变焓达到48.84J/g,且DSC热循环显示纤维具有较好的热稳定性;PAN/SA相变纤维相对于PAN纤维具有良好的保温性;PAN/SA相变纤维在110℃热空气中迅速干燥的力学性能优于常温处理的力学性能。With stearic acid（SA） as phase change material, waste polyacrylonitrile fibre（PAN） as framework material, polyacrylonitrile fiber/stearic acid（PAN/SA） phase change fibers were prepared by wet spinning process. The results indicate that PAN and SA in PAN/SA composites are combined by intermolecular forces, and SA is homogeneous distribution in the PAN matrix. The latent heat storage capacity of PAN/SA fiber reaches 48. 84J/g,and it also shows good thermal stability in thermal cycling. Compared with PAN fiber, PAN/SA fiber has good thermal insulation properties. The mechanical property of PAN/SA fiber dried at 110℃ hot air is better than that dried at room temperature.

关 键 词：腈纶废丝 硬脂酸 相变纤维 储能 

分 类 号：TQ34[化学工程—化纤工业]