Effects of nano-SiO2 on morphology, thermal energy storage, thermal stability, and combustion properties of electrospun lauric acid/PET ultrafine composite fibers as form-stable phase change materials

被引：147

作者：

Cai, Yibing ^{[1
,2
,3
]}

Ke, Huizhen ^{[1
]}

Dong, Ju ^{[1
]}

Wei, Qufu ^{[1
]}

Lin, Jiulong ^{[1
]}

Zhao, Yong ^{[3
]}

Song, Lei ^{[2
]}

Hu, Yuan ^{[2
]}

Huang, Fenglin ^{[1
]}

Gao, Weidong ^{[1
]}

Fong, Hao ^{[3
]}

机构：

[1] Jiangnan Univ, Minist Educ, Key Lab Ecotext, Wuxi 214122, Jiangsu, Peoples R China

[2] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230027, Anhui, Peoples R China

[3] S Dakota Sch Mines & Technol, Dept Chem, Rapid City, SD 57701 USA

来源：

APPLIED ENERGY | 2011年 / 88卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Form-stable phase change materials; Electrospinning; LA/PET composite fibers; Nano-SiO2; Morphology; Thermal energy storage; GLYCOL/CELLULOSE ACETATE COMPOSITE; CARBON-FIBERS; NANOFIBERS; POLYMER; FABRICATION; MEMBRANES; GRAPHITE; BLENDS; PCM;

D O I：

10.1016/j.apenergy.2010.12.071

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The ultrafine composite fibers consisting of lauric acid (LA). polyethylene terephthalate (PET), and silica nanoparticles (nano-SiO2) were prepared through the materials processing technique of electrospinning as an innovative type of form-stable phase change materials (PCMs). The effects of nano-SiO2 on morphology, thermal energy storage, thermal stability, and combustion properties of electrospun LA/PET/SiO2 composite fibers were studied. SEM images revealed that the LA/PET/SiO2 composite fibers with nano-SiO2 possessed desired morphologies with reduced average fiber diameters as compared to the LA/PET fibers without nano-SiO2. DSC measurements indicated that the amount of nano-SiO2 in the fibers had an influence on the crystallization of LA. and played an important role on the heat enthalpies of the composite fibers; while it had no appreciable effect on the phase change temperatures. TGA results suggested that the incorporation of nano-SiO2 increased the onset thermal degradation temperature, maximum weight loss temperature, and charred residue at 700 degrees C of the composite fibers, indicating the improved thermal stability of the fibers. MCC tests showed that the heat resistance effect and/or barrier property generated by nano-SiO2 resulted in an increase of initial combustion temperature and a decrease of the heat release rate for the electrospun ultrafine composite fibers. (c) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2106 / 2112

页数：7

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