
第42卷第3期 2012年3月
涂料工业
PAINT & COATINGS INDUSTRY
相变储能调温内墙涂料的研制
崔锦峰,马永强,郭军红,杨保平,周应萍,张鹏飞(兰州理工大学,兰州730050)
Vol.42No.3 Mar.2012
摘要:以三聚氰胺-甲醛(MF)树脂为壁材,硬脂酸丁酯-正十四醇混合物为相变芯材制备了微胶囊相变材料与一定比例的成膜物质混合制得相变储能调温内墙涂料。采用SEM、DSC、FT-IR等测试仪器分别对微胶囊形态、益性能、化学成分进行了表征:采用自制模型对影响涂料的储能调温效果的因素进行了分析。结果表明:所得微胶囊呈粒状、热稳定性好、相变潜热高:微胶囊的芯壁比为1.2:1、涂层厚度为1.0mm时,所制涂料储能调温效果最佳。
关键词:微胶囊相变材料;储能;内墙涂料
中图分类号:TQ635.55
文献标识码:A
文章编号:02534312(2012)03000104
Development of Energy Storage and Temperature
Adjustment Interior Wall Coatings
Cui Jinfeng,Ma Yongqiang,Guo Junhong,Yang Baoping,Zhou Yingping,Zhang Pengfei
(Lanzhou Unieersity of Technology, Lanzhou 730050, China)
Abstract: The microcapsules phase change material was prepared by using melamine formaldehyde res-in as the shell material and the mixture of n butyl stearate and n tetradecyl alcohol as the phase change core material, which was then mixed with film forming bind to prepare the energy storage and temperature adjustment interior wall coatings.The surface morphology,thermal properties and chemical composition of the microcapsules were investigated by using SEM, DSC and FT -IR.By using a self -made tester, factors which could affect the energy storage and temperature adjustment were analyzed. When the prepared micro-capsules were featured by particle shape, heat stability and high latent heat, the core - shell ratio microcap-sule of was 1.2:1, the film thickness 1.0 mm, the results showed that, the energy storage and temperature adjustment performance of the coatings was the best.
Key Words: microcapsules phase change material; energy storage; interior wall coatings
建筑物在使用期间,需要不断消耗大量的能源,约占人类能源消耗的30%~40%,而其中绝大部分用于采暖和空调]。面且,随着人口的增长,建筑高能耗也必成增长趋势,会给能源供应带来更大压力。建筑储能系统的发展成为解决间题的方案之一[2]
相变材料(PCMs)是一种利用相变潜势吸收、储存和释放热能的材料3]。采用微胶囊技术对相变材料进行封装,制成稳定的微胶囊相变材料(MCPCM)固体微粒,这种微粒可以在很窄的温度范围内吸收/释放相变潜热,具有较为显著的储热调温功能4-5]。将微胶囊相变材料应用于建筑领域,可降低室内空气温度波动的频率,保持温度在一个较长的时期内与所需的温度接近,增加人体舒适度(),同时达到节能目的。
FangXiaoming等[7]对硬脂酸丁酯-十二醇-改性蒙脱土复合相变材料在建筑储能方面进行了应用研究,发现该复合材料相变潜热大,稳定性好,具有适合建筑储能的相变温度,
作者简介:准锦峰(1964一),男,副教投,研完方向为高分子或膜材料。
可降低建筑能耗,减少室内温度变化。苏峻峰等*对所制备的相变储热微胶囊的储热调温效果进行了评价,结果表明:相变材料的储能过程具有可逆性和连续性,节能效果达到15.6%。
本研究以三聚氰胺=甲醛(MF)树脂为避材、通过原位聚合法包置硬脂酸丁酯-正十四醇混合物制备了微胶囊相变材料,配以自制硅溶胶-苯丙无机/有机复合乳液、助剂和颜填料制得相变储能调温内墙涂料,与一般市售内培涂料进行比较,对其相变储能调温效果进行了研究。
实验部分 1.1主要试剂
苯乙烯-马来酸酐共聚树脂(SMA):美国孟山都公司:硬脂酸丁酯:工业级,扬州富华化工有限公司:复合乳液:自制: 37%甲醛水溶液、正十四醇、三聚氰胺、乳化剂0P=10、柠檬
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