水合盐相变微胶囊的制备及在调温织物中的应用
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摘要
以Na_2HPO_4·12H_2O为芯材,尿素-甲醛树脂为壁材,采用原位聚合法制备无机芯相变微胶囊。借助生物显微镜、差示扫描量热仪(DSC)研究了相变微胶囊的表面形貌和储热性能。采用涂层整理工艺将其用于制备调温织物,并对整理织物的调温性能进行测试。结果表明:所得微胶囊呈规则圆球形,相变温度为51.83℃,相变潜热为27.82 J/g;与未整理织物相比,整理织物的降温速率明显减缓,当涂层整理液中相变微胶囊质量分数为15%时,整理织物的保温性能最佳。
Phase-change microencapsules(PCME) were prepared using Na_2HPO_4·12H_2O as core material and urea-formaldehyde resin as the wall materials through the in-situ polymerization method. The surfaces morphology and thermal storage capacity were investigated by biomicroscope and differential scanning calorimetry(DSC). Thermo-regulating fabric was prepared by coating cotton fabrics with PCME containing coating agent and its thermo-regulating property was tested. The results indicated that the microencapsules were spherical shape with energy storage capacity of 27.82 J/g under 51.83 ℃. The temperature changing rate of the thermo-regulating fabric distinctly slowed down compared with the unfinished fabric. When the PCME concentration was 15%, the thermo-regulating fabric obtained the best thermo-regulating capacity.
Phase-change microencapsules(PCME) were prepared using Na_2HPO_4·12H_2O as core material and urea-formaldehyde resin as the wall materials through the in-situ polymerization method. The surfaces morphology and thermal storage capacity were investigated by biomicroscope and differential scanning calorimetry(DSC). Thermo-regulating fabric was prepared by coating cotton fabrics with PCME containing coating agent and its thermo-regulating property was tested. The results indicated that the microencapsules were spherical shape with energy storage capacity of 27.82 J/g under 51.83 ℃. The temperature changing rate of the thermo-regulating fabric distinctly slowed down compared with the unfinished fabric. When the PCME concentration was 15%, the thermo-regulating fabric obtained the best thermo-regulating capacity.
引文
[1]庞方丽,王瑞,刘星,等.相变微胶囊及其在蓄热调温织物上应用的研究进展[J].天津工业大学学报,2014,33(3):24-28.
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[4]黄金,王婷玉.无机芯微胶囊相变储能材料制备、表征及其热物性研究[J].功能材料,2013,44(12):1 758-1 762.
[5]孙铮,汪媛,纪俊玲.石蜡相变微胶囊及其调温织物的性能研究[J].印染助剂,2013,30(1):5-7.
[2]闰飞,陆大年.织物整理用相变微胶囊的制备[J].印染助剂,2011,28(1):32-34.
[3]刘向,魏菊,于海飞,等.石蜡相变微胶囊及蓄热调温织物的制备及性能研究[J].天津工业大学学报,2010,29(5):383-386.
[4]黄金,王婷玉.无机芯微胶囊相变储能材料制备、表征及其热物性研究[J].功能材料,2013,44(12):1 758-1 762.
[5]孙铮,汪媛,纪俊玲.石蜡相变微胶囊及其调温织物的性能研究[J].印染助剂,2013,30(1):5-7.