Inorganic Chemicals Industry >
Effect of aerogel doping on thermal insulation performance of glass fiber felt
Received date: 2023-01-10
Online published: 2023-11-16
Silica aerogel was added into glass fiber felt by the sol-gel method.The structure of material was characterized by SEM，XRD and FT-IR.The influence of the incorporation of aerogel on thermal insulation performance of glass fiber felt was studied.It was shown that the addition of aerogel increased the compression strength of the material while retaining a certain compressibility and flexibility，which was more conducive to the sealing and heat insulation of the material.The specific surface area of the materials was increased after the incorporation of aerogel，and the thermal conductivity of material was decreased.The temperature rise curve of the back surface of material after the incorporation of aerogel was obviously slowed.The back surface temperature of material was lower than that before the incorporation of aerogel at 89 ℃ when the heat transfer time was 250 s，and lower at 51 ℃ when the heat transfer time was 1 800 s.After the glass fiber felt was mixed with silica aerogel，due to its high compression strength，high heat sink，and low thermal conductivity，it had the ability of efficient thermal insulation in the transient thermal insulation environment.
GUO Jianye , WANG Dong , SU Lijun , LI Wenjing . Effect of aerogel doping on thermal insulation performance of glass fiber felt[J]. Inorganic Chemicals Industry, 2023 , 55(11) : 53 -57 . DOI: 10.19964/j.issn.1006-4990.2023-0027
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