| 月桂酸/PEG、分子筛复合相变材料的性能 |
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| 引用本文： | 郭静,范竞男,管福成,范丹. 月桂酸/PEG、分子筛复合相变材料的性能[J]. 大连工业大学学报, 2012, 0(6): 456-460 |
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| 作者姓名： | 郭静 范竞男 管福成 范丹 |
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| 作者单位： | 大连工业大学纺织与材料工程学院 |
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| 基金项目： | 辽宁省重点实验室项目(LS2010010) |
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| 摘 要： | 选用月桂酸与PEG4000为相变材料,分子筛为改性剂,利用正交试验法,采用熔融共混法制备复合的相变体材料,并对其进行保温性能、结晶形态、红外光谱的研究。月桂酸与PEG4000能够形成最低共熔物,分子筛的最佳用量为30mg/g;LA/PEG4000复合相变体具有良好的保温性能,保温时间在500s左右,相变温度在35℃左右,满足服用及建筑材料的需求;月桂酸与PEG4000各自结晶,相互抑制,导致复合相变体的晶体尺寸减小;月桂酸与PEG4000之间发生了一定的化学反应,生成的反应物提高了两者之间的相容性。
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| 关 键 词： | 月桂酸 聚乙二醇 复合相变体 分子筛 二元低共熔物 |
The performance of the PCM compounded by lauric acid,PEG and molecular sieve |
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| GUO Jing,FAN Jing-nan,GUAN Fu-cheng,FAN Dan. The performance of the PCM compounded by lauric acid,PEG and molecular sieve[J]. Journal of Dalian Dalian Polytechnic University, 2012, 0(6): 456-460 |
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| Authors: | GUO Jing FAN Jing-nan GUAN Fu-cheng FAN Dan |
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| Affiliation: | (School of Textile and Material Engineering,Dalian Polytechnic University,Dalian 116034,China) |
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| Abstract: | Orthogonal test method and melting method are used for the preparation of phase change material(PCM) composited of lauric acid, PEG and molecular sieve.The thermal insulation properties, crystal habit and Fourier transformation infrared spectroscope(F TIR) have been studied. The results indicated that a minimum eutectic things can be formed well by lauric acid and PEG4000, the best dosage of the molecular sieve is 30mg/g, the PCM compounded by lauric acid and PEG4000 has good thermal insulation properties, the soaking time is about 500s, phase-transition temperature is about 35℃, which is satisfied the requirements of the wearability and building.The self crystallization of lauric acid or PEG4000and restrain each other result in the decrease in size of the compound PCM′s crystal.Some chemical reaction between lauric acid and PEG4000improve their compatibility. |
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| Keywords: | lauric acid P EG composite PCM molecular sieve minimum eutectic things |
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