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作 者:刘亚洁[1,2] 马晓光[1,2] 陈智明[1,2] 陈佳玉[1,2]
机构地区:[1]天津工业大学纺织学院,天津300387 [2]天津市改性与功能纤维重点实验室,天津300387
出 处:《针织工业》2015年第12期38-43,共6页Knitting Industries
基 金:天津市科技支撑计划重点项目(11ZCKFS01900)
摘 要:采用纳米TiO_2和PVA改性变色储热微胶囊的壁材,即三聚氰胺-甲醛树脂,并以脂肪醇A、双酚A、热敏紫和分散红染料作为芯材,制得改性微胶囊。以破损率、成囊率、步冷步热曲线、SEM图和色差为测试指标,分别探讨了纳米TiO_2和PVA改性微胶囊的改性效果。结果表明,当壁材中纳米TiO_2的质量分数为2%、PVA的质量分数为2%时,两种改性微胶囊调温、储热性能较未改性微胶囊有很大改善,破损率也有所降低,在低温和高温间的变色效果良好,但成囊率稍有降低;两种改性微胶囊比较,PVA的综合改性效果比纳米TiO_2改性效果明显。The wall material of color change and heat storage microcapsules named melamine-formaldehyde resin was modified by nano TiO2 and PVA, and then with fatty alcohol A, bisphenol A, thermal sensitive purple and disperse red dye as core material, modified microcapsules were made. Taking damage rate, capsule rate, cooling and thermal curves , the SEM pictures and color difference as testing indices, the modified effect of microcapsules by nano TiO2 and PVA were discussed. The results show that when the content of nano TiO2 in the wall material is 2%, the content of PVA in the wall material is 2%, the temperature regulation and thermal storage performances of two modified microcapsules is better than that of unmodified microcapsules, and damage rate declines, and the effects of color change behavior is good at low or high temperature, but the damage rate decreases slightly; general modification effect of PVA is better than that of TiO2.
分 类 号:TS195.57[轻工技术与工程—纺织化学与染整工程]
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