Preparation and performance of novel form-stable composite phase change materials based on polyethylene glycol/White Carbon Black assisted by super-ultrasound-assisted

被引：58

作者：

Zhang, Xiaoguang ^{[1
]}

Huang, Zhaohui ^{[1
]}

Ma, Bin ^{[1
]}

Wen, Ruilong ^{[1
]}

Min, Xin ^{[1
]}

Huang, Yaoting ^{[2
]}

Yin, Zhaoyu ^{[1
]}

Liu, Yangai ^{[1
]}

Fang, Minghao ^{[1
]}

Wu, Xiaowen ^{[1
]}

机构：

[1] China Univ Geosci, Natl Lab Mineral Mat, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Sch Mat Sci & Technol, Beijing 100083, Peoples R China

[2] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

来源：

THERMOCHIMICA ACTA | 2016年 / 638卷

关键词：

Phase change materials; Polyethylene glycol; White Carbon Black; Super-ultrasound-assisted; THERMAL-ENERGY STORAGE; PEG COMPOSITE; TEMPERATURE; PCM; CONDUCTIVITY; VERMICULITE;

D O I：

10.1016/j.tca.2016.06.012

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study, novel polyethylene glycol (PEG)/White Carbon Black (WCB) form-stable composite phase changes materials (FS-CPCMs) were prepared by super-ultrasound-assisted, which obviously decreases the reaction time. Test results showed that PEG does not easily leak from the fluffy network structure of WCB during solid-liquid phase transition. Results obtained from XRD and FTIR demonstrated that no new chemical bond is formed between PEG4000 and WCB. Results obtained from DSC and TGA analyses showed that FS-CPCMs exhibit excellent thermal stability and good form-stable performance. The phase change enthalpy of FS-CPCMs reached up to 101.1J/g, and the melting and solidifying times of FS-CPCMs were 34.43% and 30.51% less than that of pure PEG, respectively. The thermal conductivity data showed that WCB acted as the support material is very effective for enhancing the thermal conductivity of the FS-CPCMs. The FS-CPCMs thus prepared were safe, environmentally friendly, and cost-effective; hence, they can be used as potential building materials for the applications of thermal energy storage. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：35 / 43

页数：9

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