Preparation and thermal-mechanical properties of physical and chemical dual-reinforced SiO2 aerogels

Wang Zhan; Jinhong Mo; Lingling Tang; Fan Shi; Le Chen; Lixia Li; Mingyi Chen; Qinghong Kong; Ru Zhou; Juncheng Jiang

doi:10.1016/j.jnoncrysol.2025.123462

Preparation and thermal-mechanical properties of physical and chemical dual-reinforced SiO₂ aerogels

Wang Zhan, Jinhong Mo, Lingling Tang, Fan Shi, Le Chen, Lixia Li, Mingyi Chen, Qinghong Kong, Ru Zhou, Juncheng Jiang

College of Safety Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Considering that the poor mechanical properties limit the application of SiO₂ aerogels in fire insulation, polyurethane sponges, and mica were used to enhance the mechanical properties of SiO₂ aerogels in this study. The effects of polyurethane sponges with different pore sizes and mica content on the thermal-mechanical properties of composite aerogels were investigated. The internal structure of the composite aerogels was analyzed by scanning electron microscopy. Moreover, the chemical structure and composition of the composite aerogels were characterized and analyzed. The results demonstrate that polyurethane sponges and mica can effectively enhance the mechanical properties of composite aerogels. However, the addition of mica increased the thermal conductivity. The experimental data will further expand the engineering application of SiO₂ aerogels.

Original language	English
Article number	123462
Journal	Journal of Non-Crystalline Solids
Volume	656
DOIs	https://doi.org/10.1016/j.jnoncrysol.2025.123462
State	Published - 15 May 2025

Keywords

Mica
Polyurethane
SiO aerogels
Thermal-mechanical properties

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10.1016/j.jnoncrysol.2025.123462

Cite this

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title = "Preparation and thermal-mechanical properties of physical and chemical dual-reinforced SiO2 aerogels",

abstract = "Considering that the poor mechanical properties limit the application of SiO2 aerogels in fire insulation, polyurethane sponges, and mica were used to enhance the mechanical properties of SiO2 aerogels in this study. The effects of polyurethane sponges with different pore sizes and mica content on the thermal-mechanical properties of composite aerogels were investigated. The internal structure of the composite aerogels was analyzed by scanning electron microscopy. Moreover, the chemical structure and composition of the composite aerogels were characterized and analyzed. The results demonstrate that polyurethane sponges and mica can effectively enhance the mechanical properties of composite aerogels. However, the addition of mica increased the thermal conductivity. The experimental data will further expand the engineering application of SiO2 aerogels.",

keywords = "Mica, Polyurethane, SiO aerogels, Thermal-mechanical properties",

author = "Wang Zhan and Jinhong Mo and Lingling Tang and Fan Shi and Le Chen and Lixia Li and Mingyi Chen and Qinghong Kong and Ru Zhou and Juncheng Jiang",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier B.V.",

year = "2025",

month = may,

day = "15",

doi = "10.1016/j.jnoncrysol.2025.123462",

language = "英语",

volume = "656",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Preparation and thermal-mechanical properties of physical and chemical dual-reinforced SiO2 aerogels

AU - Zhan, Wang

AU - Mo, Jinhong

AU - Tang, Lingling

AU - Shi, Fan

AU - Chen, Le

AU - Li, Lixia

AU - Chen, Mingyi

AU - Kong, Qinghong

AU - Zhou, Ru

AU - Jiang, Juncheng

PY - 2025/5/15

Y1 - 2025/5/15

N2 - Considering that the poor mechanical properties limit the application of SiO2 aerogels in fire insulation, polyurethane sponges, and mica were used to enhance the mechanical properties of SiO2 aerogels in this study. The effects of polyurethane sponges with different pore sizes and mica content on the thermal-mechanical properties of composite aerogels were investigated. The internal structure of the composite aerogels was analyzed by scanning electron microscopy. Moreover, the chemical structure and composition of the composite aerogels were characterized and analyzed. The results demonstrate that polyurethane sponges and mica can effectively enhance the mechanical properties of composite aerogels. However, the addition of mica increased the thermal conductivity. The experimental data will further expand the engineering application of SiO2 aerogels.

AB - Considering that the poor mechanical properties limit the application of SiO2 aerogels in fire insulation, polyurethane sponges, and mica were used to enhance the mechanical properties of SiO2 aerogels in this study. The effects of polyurethane sponges with different pore sizes and mica content on the thermal-mechanical properties of composite aerogels were investigated. The internal structure of the composite aerogels was analyzed by scanning electron microscopy. Moreover, the chemical structure and composition of the composite aerogels were characterized and analyzed. The results demonstrate that polyurethane sponges and mica can effectively enhance the mechanical properties of composite aerogels. However, the addition of mica increased the thermal conductivity. The experimental data will further expand the engineering application of SiO2 aerogels.

KW - Mica

KW - Polyurethane

KW - SiO aerogels

KW - Thermal-mechanical properties

UR - http://www.scopus.com/inward/record.url?scp=85219098450&partnerID=8YFLogxK

U2 - 10.1016/j.jnoncrysol.2025.123462

DO - 10.1016/j.jnoncrysol.2025.123462

M3 - 文章

AN - SCOPUS:85219098450

SN - 0022-3093

VL - 656

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

M1 - 123462

ER -

Preparation and thermal-mechanical properties of physical and chemical dual-reinforced SiO₂ aerogels

Abstract

Keywords

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