期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 111, 期 -, 页码 94-105出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2018.05.015
关键词
Boron nitride; Metal oxide; Flame retardant; Smoke release
资金
- National Natural Science Foundation of China [51573173]
- Fundamental Research Funds for the Central Universities [WK2320000041]
The potential prospect of hexagonal boron nitride (h-BN) in the fields of polymer composites is severely limited by undesirable exfoliation efficiency and chemical inertness. Herein, bio-based dopamine was employed toward exfoliating bulk h-BN with hydrogen bond action and imparting a highly-active surface. With assistance of polypodamine, SnO2 nanoparticles were in-situ synthesized and strengthened the interfacial interaction between h-BN and epoxy (EP) matrix. The integrated function of metal oxide/h-BN toward flame retardant and smoke suppression of polymer materials was firstly studied and obtained, in term of reduced peak heat release rate (decreased by 41.1%), lower total heat release (decreased by 30.1%), and suppressed total smoke production (decreased by 21.6%). In addition, the mechanism for enhancements on flame retardant and smoke suppression of EP composites was systematically investigated. Such a design route simultaneously achieves the exfoliation and functionalization of h-BN, thus offering an active platform for further functionalization modification.
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