Research progress in modification and functionalization of bio⁃based aerogels

doi:10.19491/j.issn.1001-9278.2024.02.014

Abstract

Abstract:

This paper introduced the main methods of bio⁃based aerogels in flame retardant and hydrophobic properties as well as other functionalization modification and also reviewed the progress of the application of modified bio⁃based aerogel in the fields of flame retardancy， environmental remediation， energy storage， and biomedicine. Finally， the scientific and technological problems in the process of the development of bio⁃based aerogels and the development prospect of the functionalized bio⁃based aerogels were analyzed.

Key words: bio?based, aerogel, flame retardancy, hydrophobicity, thermal insulation, energy storage material

CLC Number:

TQ321

TONG Yaxuan, GAO Hainan, CHEN Liping, WENG Yunxuan. Research progress in modification and functionalization of bio⁃based aerogels[J]. China Plastics, 2024, 38(2): 87-94.

Figures/Tables 10

Fig.1. Characteristics of hydrophobic modifications

Fig.2. Molecular formula of commonly used hydrophobic agent

Fig.3. Schematic diagram of the hierarchical hybrid interfaces between BC nanofibers and PMSQ coatings［12］

Fig.4. Classification of flame retardant modifiers

Fig.5. Schematic diagram synthesis of the CE/CSA aerogels［43］

Fig.6. Self⁃cleaning function of superhydrophobic fabrics［47］

样品	热导率/W·mK^-1	使用寿命/年	性能
聚苯乙烯泡沫	0.045	30	强度差、易老化
聚氨酯泡沫	0.024	15	稳定性差
纳米纤维素气凝胶	0.020	20	性能稳定

Tab.1. Comparison of the performance of conventional insulation materials and aerogel

Fig.7. Temperature⁃time profiles of house models（a） and houses with and without gel lining（b）［48］

Fig.8. Schematic diagram of the interface evaporator［51］

Fig.9. Photos of hemoglobin binding capacity of car bonized mushroom aerogels， gelatin sponge， and gauze at different detecting time［54］

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