摘要
相变材料与纺织材料结合能有效调节人体体温,提高人体穿着舒适性,降低人体对室内空调系统调温的依赖性,从而减少能源消耗。为改进固-固相变材料的性能,研究结合聚氨酯(PU)和聚乙二醇(PEG),利用同轴静电纺丝技术制备皮芯型PU@PEG固-固相变材料。通过控制静电纺丝工艺参数,调控纳米纤维定向排列程度与结晶程度,使相变材料的力学性能增强。定向排列的PU@PEG相变材料相较于随机排列的材料,其弹性模量提升幅度达到38.01%,断裂应力提升幅度达到15.92%,熔融焓提高8.51%,整体上提升了相变材料的储能性能和应用耐久性。
Combining phase change materials with textile materials can effectively regulate body temperature,enhance comfort,and reduce the reliance on air conditioning systems for temperature adjustment,thereby reducing energy consumption.This study prepared a core-shell PU@PEG solid-solid phase change material by using coaxial electrospinning,combining polyurethane(PU)and polyethylene glycol(PEG).By controlling the electrospinning process parameters and adjusting the alignment and crystallinity of nanofibers,the mechanical properties of the phase change material were enhanced.Compared to randomly arranged materials,the oriented PU@PEG phase change material exhibits a significant improvement in elastic modulus(increased by over 38.01%),fracture stress(increased by over 15.92%),and melting enthalpy(increased by 8.51%).Overall,this enhancement contributes to improved energy storage performance and application durability of the phase change material.
作者
赵志鹏
李安琪
关晓宇
ZHAO Zhipeng;LI Anqi;GUAN Xiaoyu(China Textile Planning Research Association,Beijing 100020,China;School of Materials Design and Engineering,Beijing Institute of Fashion Technology,Beijing 100029,China)
出处
《北京服装学院学报(自然科学版)》
CAS
2024年第1期74-79,94,共7页
Journal of Beijing Institute of Fashion Technology:Natural Science Edition
基金
北京服装学院新进青年教师启动计划(BIFTXJ202220)
北京学者项目(RCQJ20303)
纺织之光应用基础研究计划(J202309)
北京服装学院高水平教师队伍建设专项资金(BIFT GCC202302)。
关键词
纳米纤维
相变材料
智能材料
取向结构
nanofiber
phase change material
smart material
oriented structure