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《Acta Materiae Compositae Sinica》 2017-01
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Optimization of preparation program for hexadecanol-palmitic acid-lauric acid/SiO_2 composite materials by response surface methodology based on heat & moisture comprehensive property

ZHANG Hao;HUANG Xinjie;ZONG Zhifang;TANG Gang;School of Civil Engineering and Architecture,Anhui University of Technology;  
Hexadecanol-palmitic acid-lauric acid/SiO_2 composite materials can be prepared by sol-gel method.The effect of absolute alcohol amount,deionized water amount and hexadecanol-palmitic acid-lauric acid amount on heat moisture comprehensive property of hexadecanol-palmitic acid-lauric acid/SiO_2 composites,and the preparation technology parameters for hexadecanol-palmitic acid-lauric acid/SiO_2 composite materials was optimized.The results show that primary and secondary sequence of factors is the effect of absolute alcohol amount is obviously more significant than that of hexadecanol-palmitic acid-lauric acid amount,and the effect of hexadecanol-palmitic acid-lauric acid amount more significant than that of deionized water amount.Within the ranges of parameters in this study,absolute alcohol amount(mole ratio to tetraethyl orthosilicate)is 9.11,deionized water amount is 5.21 and hexadecanol-palmitic acid-lauric acid amount is 0.52.Hexadecanol-palmitic acid-lauric acid/SiO_2 composite materials have the best heat-moisture comprehensive performance in the range of human comfort,i.e.average equilibrium moisture content is 0.102 0g/g in relative humidity 50%,phase change temperature is 26.81-28.52℃,phase change enthalpy is95.69J/g,and belong to micron organic phase change core materials/inorganic substrate composite materials.
【Key Words】: SiO2 phase change system composites response surface method temperature & humidity regulator optimization heat & moisture comprehensive property
【Fund】: 国家自然科学基金青年基金(51206002);; 高等学校优秀青年人才基金(2010SQRL034)
【CateGory Index】: TB332
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