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Research articles

ScienceAsia 46 (2020): 169-177 |doi: 10.2306/scienceasia1513-1874.2020.023

Fabrication of PVC/MWNTs-g-C16 composites with high solar-thermal conversion performance for anti-icing and deicing

Xiaoning Shena, Lihuan Yuana, Zhen Weia, Yujun Qinb,*, Yapei Wangb, Zhi-Xin Guob,*, Lili Genga

ABSTRACT:     In this study, an easy method is presented to prepare a polymer based multi-walled carbon nanotube (MWNT) composite. First, MWNTs grafted to n-hexadecyl bromide (MWNTs-g-C16) were prepared using an esterifica-tion reaction of carboxylate salt on the MWNTs’ surface and a bromine group consisting of n-hexadecyl bromide in the presence of a phase-transfer reagent in water. Subsequently, a composite material of PVC/MWNTs-g-C16 was prepared by melt blending with a series of dissolvable MWNTs-g-C16 aided by heat stabilizers and lubricants. Thermogravimetric analysis of the MWNTs-g-C16 showed a weight percentage of attached alkyl chains as high as 35.77 wt%, and a TEM image proved that the soluble MWNTs-g-C16 were well dispersed randomly in a matrix of polyvinyl chloride (PVC). Solar-thermal conversion performances of the PVC/MWNTs-g-C16 composites were studied, and the composites exhibited excellent light absorption properties. This property is attributed to the optical absorption characteristics of MWNTs. The PVC/MWNTs-g-C16 composite material exhibits excellent mechanical properties, and could be used as solar collectors or as solar anti-icing and deicing materials.

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a Department of Applied Chemistry, College of Science, Hebei North University, Zhangjiakou, China
b Department of Chemistry, Renmin University of China, Beijing 100872 China

* Corresponding author, E-mail: yjqin@ruc.edu.cn, gzhixin@ruc.edu.cn

Received 14 Jan 2020, Accepted 17 Mar 2020