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A graphene@Cu-MOF hybrid synthesized by mechanical ball milling method and its flame retardancy and smoke suppression effect on EP.
Zhang, Ge; Wu, Weihong; Yao, Meng; Cui, Yumeng; Jiao, Yunhong; Qu, Hongqiang; Xu, Jianzhong.
Afiliación
  • Zhang G; The Flame Retardant Material and Processing Technology Engineering Research Center of Hebei Province, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
  • Wu W; College of Science, Agriculture University of Hebei, Baoding, 071000, China.
  • Yao M; The Flame Retardant Material and Processing Technology Engineering Research Center of Hebei Province, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
  • Cui Y; The Flame Retardant Material and Processing Technology Engineering Research Center of Hebei Province, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
  • Jiao Y; The Flame Retardant Material and Processing Technology Engineering Research Center of Hebei Province, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China. Electronic address: jiaoyunhong@126.com.
  • Qu H; The Flame Retardant Material and Processing Technology Engineering Research Center of Hebei Province, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China. Electronic address: hqqu@163.com.
  • Xu J; The Flame Retardant Material and Processing Technology Engineering Research Center of Hebei Province, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, China.
Chemosphere ; 346: 140521, 2024 Jan.
Article en En | MEDLINE | ID: mdl-37925028
ABSTRACT
The traditional method of preparing graphene will cause serious environmental pollution, and the combustion of polymer materials will seriously harm people's health. In this paper, a Cu-MOF-coated graphene composite flame retardant (G@Cu-MOF) rich in flame retardant elements such as B and N was synthesized through green mechanical ball milling method. Flame retardants reduce the threat to the environment and people's lives and property. After adding 6 wt% G@Cu-MOF, the peak heat release rate, total heat release rate, CO production and CO2 production of epoxy resin (EP) composite samples decreased by 55, 14, 59, and 55%, respectively. This type of Cu-MOF releases incombustible gases such as boron trifluoride (BF3) and ammonia (NH3) during combustion, diluting the concentration of combustible gases and producing copper borate in the condensed phase. Cu2+ is reduced to Cu, and boron compounds are converted into boron oxides. The thermal conductivity of graphene can reduce the temperature of the matrix, and has good flame retardancy. It synergistically acts with Cu-MOF to promote the formation of high-quality residual char, and can significantly inhibit the heat and smoke release of EP. It plays a role in flame retardancy and protecting the substrate from fire. This study provides a new approach for preparing graphene hybrid flame retardants through mechanical ball milling, in order to improve the flame retardancy of EP and suppress the release of smoke and toxic gases.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Retardadores de Llama / Grafito Límite: Humans Idioma: En Revista: Chemosphere Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Retardadores de Llama / Grafito Límite: Humans Idioma: En Revista: Chemosphere Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido