Research progress on mechanical properties enhancement of SiO<sub>2</sub> aerogels

ZHAN Wang; SHI fan; LI Lixia; CHEN Le; CHEN Mingyi; KONG Qinghong; ZHANG Qingwu

doi:10.13801/j.cnki.fhclxb.20230420.001

Volume 40 Issue 9

Sep. 2023

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ZHAN Wang, SHI fan, LI Lixia, et al. Research progress on mechanical properties enhancement of SiO2 aerogels[J]. Acta Materiae Compositae Sinica, 2023, 40(9): 4958-4971. doi: 10.13801/j.cnki.fhclxb.20230420.001

Citation:

ZHAN Wang, SHI fan, LI Lixia, et al. Research progress on mechanical properties enhancement of SiO₂ aerogels[J]. Acta Materiae Compositae Sinica, 2023, 40(9): 4958-4971. doi: 10.13801/j.cnki.fhclxb.20230420.001

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Research progress on mechanical properties enhancement of SiO₂ aerogels

doi: 10.13801/j.cnki.fhclxb.20230420.001

1.
School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
2.
School of Electronic Science and Engineering, Nanjing University, Nanjing 211816, China
3.
College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, China

Funds: National Natural Science Foundation of China (52004131)；National Natural Science Foundation of China (52204213)；The Students Scientific Research Training Program of College of Emergency Management of Jiangsu University (JG-03-07)

Received Date: 2023-02-24
Accepted Date: 2023-04-08
Rev Recd Date: 2023-03-27

Available Online: 2023-04-21

Publish Date: 2023-09-15

Abstract

Abstract

With the rapid development of society, latent fire hazards have a great threat to social security. Fire prevention and control can be effectively carried out by using fire insulation materials. Aerogels have the characteristics of low density, low thermal conductivity, high porosity, and exhibit excellent fire insulation properties. SiO₂ aerogel is the typical representative of aerogel materials and widely used in many industries. However, SiO₂ aerogel still has the bottleneck problem of poor mechanical properties at present, resulting in greatly limits for the engineering application. Therefore, it is necessary to introduce reinforcements to make SiO₂ aerogel maintain its own excellent characteristics and enhance its mechanical properties. In this paper, the current research status of reinforced SiO₂ materials is briefly described, then the methods of improving mechanical properties by optimizing the process and adding nanomaterials, fibers, compacts in the preparation of silica aerogels are discussed and analyzed. Finally, this paper proposed the future research direction and development suggestions of SiO₂ aerogels .
- aerogel,
- fireproof and heat insulation,
- strength,
- process optimization,
- nanomaterial,
- fiber,
- SiO₂,
- mechanical properties
Long Abstrsct
Innovation Points

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References(102)

References

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