Thermal Performance of Polymer Foams with Dual-distributed Cells: A Finite Element Calculation

doi:10.19894/j.issn.1000-0518.200349

Chinese Journal of Applied Chemistry ›› 2021, Vol. 38 ›› Issue (8): 961-968.DOI: 10.19894/j.issn.1000-0518.200349

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Thermal Performance of Polymer Foams with Dual-distributed Cells: A Finite Element Calculation

ZHANG Ting¹, DING Ming-Ming², HU Wei^1,3*, SHI Tong-Fei^2*

¹College of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
²State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
³College of Chemistry, Northeast Normal University, Changchun 130024, China

Received:2020-11-23 Revised:2021-01-29 Published:2021-08-01 Online:2021-10-01

Abstract

Abstract: The influence of cell structure on the thermal properties of polymer foam with dual-distribution has been calculated by the finite element method. The change of material heat flux under different porosities is studied, and the relationship between the thermal conductivity and bubble distribution/porosity is obtained. The results show that the heat preservation performance of dual-distribution cell structure material is better than that of single-distribution cell structure material, especially when the porosity is between 30% and 70%. Secondly, with the increase of porosity and the proportion of large cell area, the thermal insulation performance of the material is enhanced. Finally, for the triple distribution cell structure material with the same porosity, with the increase of the proportion of big cell area, the thermal insulation performance of the material is enhanced.

Key words: Polymer foam, Dual-distribution, Thermal performance, Finite element method

CLC Number:

O642

ZHANG Ting, DING Ming-Ming, HU Wei, SHI Tong-Fei. Thermal Performance of Polymer Foams with Dual-distributed Cells: A Finite Element Calculation[J]. Chinese Journal of Applied Chemistry, 2021, 38(8): 961-968.

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Thermal Performance of Polymer Foams with Dual-distributed Cells: A Finite Element Calculation

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