纺织高校基础科学学报2025，Vol.38Issue(5)：9-16,8.DOI:10.13338/j.issn.1006-8341.2025.05.002
PLA/SiO2/TiO2双层复合膜辐射制冷性能研究
Research on the radiative cooling performance of PLA/SiO2/TiO2 double layer composite membranes
摘要
Abstract
In order to develop double-sided polylactic acid(PLA)-based radiative cooling nonwoven materials,PLA fibers containing silicon dioxide(SiO2)and titanium dioxide(TiO2)were prepared by wet spinning and electrospinning,respectively.A double-layer composite membrane consisting of wet spun PLA based fibers(front side)and electrospun PLA based fibers(back side)was con-structed,and its morphology,chemical structure,hydrophilicity-hydrophobicity,and radiative cooling performance were studied.The results show that wet spun PLA based fibers exhibit a porous structure,while electrospun PLA/SiO2/TiO2 fibers have significantly finer diameters than other fibers.The water contact angle on both sides of the composite membrane constructed from two types of fibers increases,while the self-cleaning ability of the composite membrane surface is im-proved.Through radiative cooling effect testing,it is found that the front side of the composite film has good infrared emission ability,while the back side has strong solar reflection ability.Com-pared with traditional leather samples,the outdoor cooling of the composite membrane is close to 10 ℃,and the indoor cooling is close to 7 ℃.关键词
聚乳酸/复合膜/辐射制冷/溶液纺丝Key words
polylactic acid/composite membrane/radiative cooling/solution spinning分类
轻工业引用本文复制引用
刘润政,韩宗晟,黄晓卫,宁新,明津法..PLA/SiO2/TiO2双层复合膜辐射制冷性能研究[J].纺织高校基础科学学报,2025,38(5):9-16,8.基金项目
生物多糖纤维成形与生态纺织国家重点实验室课题(RZ2000003348,ZDKT202109) （RZ2000003348,ZDKT202109）
企业合作项目(RH2200000615) （RH2200000615）
