基于微波辅助合成相变储能微胶囊的PE调温纤维的纺制
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Melt Spinning of Polyethylene Thermo ̄regulated Fiber Based on Phase ̄change Energy Storage Microcapsules Prepared by Microwave ̄assisted Method
WANG Gu ̄xia1 ꎬ DINGGUO Sheng ̄wei2
3. School of Chemistry & Chemical Engineeringꎬ Hefei University of Technologyꎬ Hefei 230009ꎬ China)
Abstract: Taking urea ̄formaldehyde resin as wall material and lauryl alcohol as core materialꎬ 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 ) ꎬ granulating and melt spinning. The morphologyꎬ thermal and mechanical properties were characterizedꎬ 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. Howeverꎬ 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ꎻ 脲醛树脂 / 月桂醇微胶囊ꎻ 调温纤维ꎻ 熔融纺丝 doi: 10������ 3969 / j������ issn������ 1005-5770������ 2019������ 02������ 031 中图分类号: TQ320������ 5+ 2 文献标识码: A 文章编号: 1005-5770 (2019) 02-0147-06
(1. School of Chemistry & Chemical Engineeringꎬ North Minzu Universityꎬ Yinchuan 750021ꎬ Chinaꎻ 2. School of Materials Science & Engineeringꎬ North Minzu Universityꎬ Yinchuan 750021ꎬ Chinaꎻ
第 47 卷第 2 期 2019 年 2 月
塑料工业 CHINA PLASTICS INDUSTRY
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基于微波辅助合成相变储能微胶囊的 PE 调温纤维的纺制∗
王固霞1 ꎬ 丁 娜2 ꎬ 丘管先2 ꎬ 徐卫兵3 ꎬ 郭生伟2ꎬ∗∗
(1. 北方民族大学化学与化工学院ꎬ 宁夏 银川 750021ꎻ 2. 北方民族大学材料科学与工程学院ꎬ 宁夏 银川 750021ꎻ 3. 合肥工业大学化学与化工学院ꎬ 安徽 合肥 230009)
摘要: 以脲醛树脂为壁材、 月桂醇为芯材ꎬ 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) ꎬ 将其与聚 乙 烯 基 体 混 合、 造 粒ꎬ 通 过 熔 融 纺 丝 法 制 得 了 聚 乙 烯 储 能 调 温 纤 维 ( UF / LA ̄ PCESMs ̄PE) ꎬ 并进行了形貌、 热性能和力学性能表征ꎮ 结果表明: 随 UF / LA ̄PCESMs 含量的增加ꎬ 纤维的储能潜热 稳步增加ꎬ 实验范围内最高可达 74������ 52 J / gꎮ 在热失重实验中ꎬ 纤维最大失重速率温度随 UF / LA ̄PCESMs 含量增加向 高温移动ꎬ 热稳定性良好ꎮ 抗张强度随 UF / LA ̄PCESMs 含量增加而下降ꎬ 但在实验范围内 ( 最高为 20% ) 仍可满足 常规纤维使用要求ꎮ SEM 照片显示ꎬ UF / LA ̄PCESMs 较好地分布于 PE 基体中ꎬ 其结构保留较为完整ꎮ
WANG Gu ̄xia1 ꎬ DINGGUO Sheng ̄wei2
3. School of Chemistry & Chemical Engineeringꎬ Hefei University of Technologyꎬ Hefei 230009ꎬ China)
Abstract: Taking urea ̄formaldehyde resin as wall material and lauryl alcohol as core materialꎬ 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 ) ꎬ granulating and melt spinning. The morphologyꎬ thermal and mechanical properties were characterizedꎬ 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. Howeverꎬ 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ꎻ 脲醛树脂 / 月桂醇微胶囊ꎻ 调温纤维ꎻ 熔融纺丝 doi: 10������ 3969 / j������ issn������ 1005-5770������ 2019������ 02������ 031 中图分类号: TQ320������ 5+ 2 文献标识码: A 文章编号: 1005-5770 (2019) 02-0147-06
(1. School of Chemistry & Chemical Engineeringꎬ North Minzu Universityꎬ Yinchuan 750021ꎬ Chinaꎻ 2. School of Materials Science & Engineeringꎬ North Minzu Universityꎬ Yinchuan 750021ꎬ Chinaꎻ
第 47 卷第 2 期 2019 年 2 月
塑料工业 CHINA PLASTICS INDUSTRY
������147������
基于微波辅助合成相变储能微胶囊的 PE 调温纤维的纺制∗
王固霞1 ꎬ 丁 娜2 ꎬ 丘管先2 ꎬ 徐卫兵3 ꎬ 郭生伟2ꎬ∗∗
(1. 北方民族大学化学与化工学院ꎬ 宁夏 银川 750021ꎻ 2. 北方民族大学材料科学与工程学院ꎬ 宁夏 银川 750021ꎻ 3. 合肥工业大学化学与化工学院ꎬ 安徽 合肥 230009)
摘要: 以脲醛树脂为壁材、 月桂醇为芯材ꎬ 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) ꎬ 将其与聚 乙 烯 基 体 混 合、 造 粒ꎬ 通 过 熔 融 纺 丝 法 制 得 了 聚 乙 烯 储 能 调 温 纤 维 ( UF / LA ̄ PCESMs ̄PE) ꎬ 并进行了形貌、 热性能和力学性能表征ꎮ 结果表明: 随 UF / LA ̄PCESMs 含量的增加ꎬ 纤维的储能潜热 稳步增加ꎬ 实验范围内最高可达 74������ 52 J / gꎮ 在热失重实验中ꎬ 纤维最大失重速率温度随 UF / LA ̄PCESMs 含量增加向 高温移动ꎬ 热稳定性良好ꎮ 抗张强度随 UF / LA ̄PCESMs 含量增加而下降ꎬ 但在实验范围内 ( 最高为 20% ) 仍可满足 常规纤维使用要求ꎮ SEM 照片显示ꎬ UF / LA ̄PCESMs 较好地分布于 PE 基体中ꎬ 其结构保留较为完整ꎮ