不同的微胶囊浓度等变量条件对微胶囊形貌和织物的保温效果分析毕业设计.doc

摘 要 相变材料是近年来研究最为广泛，最具有应用前景的储能材料之一。如何对固液相变材料进行有效的封装，提高其稳定性，是阻碍其规模化应用的主要问题。 本文以硬脂丁酸酯为芯材,苯乙烯_马来酸酐共聚物(SMA)为乳化剂,以单体甲苯2,4-二异氰酸酯（TDI)、异佛尔酮二异氰酸酯(IPDI)、醚聚多元醇(分子量为500和1000）为反应性单体,采用界面聚合法制备聚氨酯壳体微胶囊相变材料。通过光学显微镜、称重法对所制备微胶囊的表面形貌、热稳定性和化学结构作了表征和分析。将相变材料微胶囊通过浸轧法整理于织物的表面，实现纺织品蓄热调温功能。通过光学显微镜、热温度计法对所制备微胶囊的表面形貌、整理织物效果进行测试。实验结果表明：TDI和醚聚多元醇(分子量为500)为单体制备的微胶囊的稳定性、整理到织物上的效果明显较好；同一反应单体在不同温度下下制备的微胶囊效果也有巨大的差异，太高的温度和过低的温度所制备的微胶囊的效果都不好。 关键词:微胶囊,聚氨酯,相变材料,多醚聚元醇,界面聚合，蓄热调温，织物 ABSTRACT The phase change material is one of the most widely studied in recent years, the most promising energy storage materials. How solid-liquid phase change materials for effective package to improve its stability, is a major problem hinder large-scale applications. In this paper, stearin butyrate as core material _ styrene maleic anhydride copolymer (SMA) as emulsifier monomer 2,4-toluene diisocyanate (TDI), isophorone diisocyanate (IPDI), more poly ether polyol (molecular weight of 500 and 1000) as a reactive monomer, by interfacial polymerization micro polyurethane housing micro-encapsulated phase change material. By an optical microscope, the surface morphology of the prepared microcapsules, thermal and chemical structures were characterized and analyzed by gravimetric method. The phase change material microcapsules finishing by padding the fabric surface, realize textile regenerative thermostat function. By optical microscopy, surface morphology hot thermometer method microcapsules prepared, tested the effect of the finished fabric. The results showed that: TDI and polyether polyol poly (molecular weight 500) as stabilizing monomer microcapsules prepared, organized into a significantly better effect on the fabric; microcapsules same reaction at different temperatures monomer prepared the effect is a huge difference, too high temperature and low temperature prepared microcapsules effect is not good. KEY WORDS： microcapsules, polyurethane, phase change materials, polyether polyol polymer, interfacial polymerization, re