Design and Preparation of Flame Retardant and Hydrophobic Melamine Foam

doi:10.19894/j.issn.1000-0518.230356

Chinese Journal of Applied Chemistry ›› 2024, Vol. 41 ›› Issue (4): 538-546.DOI: 10.19894/j.issn.1000-0518.230356

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Design and Preparation of Flame Retardant and Hydrophobic Melamine Foam

Hai-Gang SHI, Yan-Ni GUO

Department of Chemistry，Changzhi University，Changzhi 046011，China

Received:2023-11-10 Accepted:2024-03-12 Published:2024-04-01 Online:2024-04-28
Supported by:
the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(2022L508)

Abstract

Abstract:

With the soft melamine foam as the base material and methyl trichlorosilane as the modifier， melamine modified foam containing two-dimensional polysiloxane coating and three-dimensional porous network framework structure was successfully prepared by chemical vapor deposition. This unique structure gave melamine modified foam excellent hydrophobic， oil-water separation， oil absorption and flame-retardant properties. The water contact angle， oil absorption， oxygen index reached 114（°）， 155.6 g/g and 38.5% and the heat release rate， peak heat release rate and total heat release decreased by 57.4%， 59.5% and 31.1%， respectively. The design and preparation of melamine modified foam with unique structure， excellent hydrophobic and flame-retardant properties provide a new way for the design of multifunctional oil-water separation materials and the solution of oil pollution problems in the future.

Key words: Melamine foam, Polysiloxane coating, Hydrophobic, Flame-retardant properties

CLC Number:

O631

Hai-Gang SHI, Yan-Ni GUO. Design and Preparation of Flame Retardant and Hydrophobic Melamine Foam[J]. Chinese Journal of Applied Chemistry, 2024, 41(4): 538-546.

Figures/Tables 6

Fig.1 Preparation process of melamine modified foam

Fig.2 FT-IR （A） and XPS （B） spectra of MF and Si-MF foam；（C） XPS high resolution spectra of Si2p region of Si-MF foam

Fig.3 SEM diagram of MF （A， B） and Si-MF （C， D） foam；（E-I） Mapping diagram of Si-MF foam

Fig.4 Water contact angle of （A） MF and （B） Si-MF foam；（C） Interaction mechanism between MF foam and methyl trichlorosilane

Fig.5 Selective oil absorption process of Si-MF foam for （A-C） heptane-water mixed system and （D-F） dimethyl sulfoxide-water mixed system

Fig.6 Oil absorption （A-C） and low fire combustion process （D-F） of Si-MF foam； Heat release rate and total heat release curves （G， H） in the microcalorimetry （MCC） test of MF and Si-MF foams

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Design and Preparation of Flame Retardant and Hydrophobic Melamine Foam

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