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所属单位：材料科学与技术学院

发表刊物：FIBERS AND POLYMERS

关键字：Vacuum insulation panel (VIP) Pore size Thermal conductivity Service life

摘要：Vacuum insulation panel (VIP), which is composed of an evacuated core material encapsulated in an envelope and supplemented with a desiccant, is a high performance thermal insulation material. In this paper, thermos-physical properties of chopped fiber, centrifugal-spinneret-blow (CSB) fiber, flame-spinneret-blow (FSB) fiber and hybrid (CSB: FSB=1:1) fiber as fillers of vacuum insulation panel are explored. The results show that the increase of pore size can improve thermal insulation property; fibers distribute in 2-D structure, which can reduce the heat conduction, leads to reduce the thermal conductivity. VIP with chopped fiber has the best thermal insulation, and thermal conductivity is 1.4 mW/m.K. Due to difference of core materials, thermal insulation characteristics of VIP can be divided into three distinct regions based on the internal pressure range, i.e., (I)>= 12000 Pa region, (II) 80-12000 Pa region, (III) <= 80 Pa region. It also finds that service life of VIP can be improved by the reducing the pore size of core materials. VIP with different core materials shows different degradation and the degradation rate of VIP with FSB core material is minimum.

ISSN号：1229-9197

是否译文：否

发表时间：2018-05-01

合写作者：徐滕州,Yang, Yong,Chen, Zhou,Zhang, Junxiong,曹瑞武,Liu, Yang

通讯作者：陈照峰,Yang, Yong,陈照峰