基于微波辅助合成相变储能微胶囊的PE调温纤维的纺制  

Melt Spinning of Polyethylene Thermo-regulated Fiber Based on Phase-change Energy Storage Microcapsules Prepared by Microwave-assisted Method

作　　者：王固霞[1] 丁娜 丘管先 徐卫兵 郭生伟[2] WANG Gu-xia;DING Na;QIU Guan-xian;XU Wei-bing;GUO Sheng-wei(School of Chemistry & Chemical Engineering,North Minzu University,Yinchuan 750021,China;School of Materials Science & Engineering,North Minzu University,Yinchuan 750021,China;School of Chemistry & Chemical Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]北方民族大学化学与化工学院,宁夏银川750021 [2]北方民族大学材料科学与工程学院,宁夏银川750021 [3]合肥工业大学化学与化工学院,安徽合肥230009

出　　处：《塑料工业》2019年第2期147-152,共6页China Plastics Industry

基　　金：宁夏自然科学基金重点项目(NZ16084);宁夏重点研发计划项目(引才专项:2018BEB04036);中央高校基本科研业务费专项资金(20171305);国家级大学生创新创业训练计划项目(201711407025)

摘　　要：以脲醛树脂为壁材、月桂醇为芯材,采用微波辅助原位包覆聚合反应制备了脲醛树脂/月桂醇相变储能微胶囊(UF/LA-PCESMs),将其与聚乙烯基体混合、造粒,通过熔融纺丝法制得了聚乙烯储能调温纤维(UF/LAPCESMs-PE),并进行了形貌、热性能和力学性能表征。结果表明:随UF/LA-PCESMs含量的增加,纤维的储能潜热稳步增加,实验范围内最高可达74. 52 J/g。在热失重实验中,纤维最大失重速率温度随UF/LA-PCESMs含量增加向高温移动,热稳定性良好。抗张强度随UF/LA-PCESMs含量增加而下降,但在实验范围内(最高为20%)仍可满足常规纤维使用要求。SEM照片显示,UF/LA-PCESMs较好地分布于PE基体中,其结构保留较为完整。Taking urea-formaldehyde resin as wall material and lauryl alcohol as core material,poly(urea-formaldehyde )/lauryl alcohol phase-change energy storage microcapsules(UF/LA-PCESMs)were prepared by microwave-assisted in-situ encapsulation polymerization.And polyethylene energy storage thermo-regulated fibers(UF/LA-PCESMs-PE fibers)were obtained by the process of blending(UF/LA PCESMs and PE),granulating and melt spinning.The morphology,thermal and mechanical properties were characterized,respectively.The results show that the latent heat of UF/LA-PCESMs-PE fibers increases steadily with the increase of UF/LA-PCESMs contents and could achieve 74.52 J/g.The maximum weight loss rate of fibers could move to high temperature with the increase of UF/LA-PCESMs contents.This indicates that UF/LA-PCESMs could improve the thermal stability of PE fibers.The tensile strength decreases with the increase of UF/LA-PCESMs contents.However,the mechanical properties of UF/LA-PCESMs-PE fibers could still satisfy with the requirements of textile(UF/LA-PCESMs contents range from 0 to 20 wt%).The results of SEM show that UF/LA-PCESMs are well distributed in PE matrix and the structure remains intact.

关 键 词：微波聚合 脲醛树脂/月桂醇微胶囊 调温纤维 熔融纺丝 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]