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Improvement of the Thermal Insulation Performance of Silica Aerogel by Proper Heat Treatment: Microporous Structures Changes and Pyrolysis Mechanism

A simple heat treatment method was used to optimize the three-dimensional network structure of the hydrophobic aerogel, and during the heat treatment process at 200–1000 °C, the thermal conductivity of the aerogel reached the lowest to 0.02240 W/m·K between 250 °C and 300 °C, which was mainly due to...

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Main Authors: Zhiyi Lun, Lunlun Gong, Zhongxin Zhang, Yurui Deng, Yong Zhou, Yuelei Pan, Xudong Cheng
Format: Artigo
Language:Inglês
Published: MDPI AG 2022-02-01
Series:Gels
Subjects:
thermal insulation performance
surface groups
heat treatment
pyrolysis
structural modeling
Online Access:https://www.mdpi.com/2310-2861/8/3/141
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