A green self-assembled organic supermolecule as an effective flame retardant for epoxy resin

27Citations
Citations of this article
18Readers
Mendeley users who have this article in their library.

Abstract

Toxicity and environmental issues have elicited research attention regarding the need to prepare a green flame retardant with high flame retardancy. Here, a supermolecular self-assembly technology was used to prepare nickel phytate as shell materials aggregated on aminated silica nanotemplates through electrostatic interactions as a green novel flame retardant (Ni@SiO2-PA). After incorporating the obtained core-shell structured Ni@SiO2-PA into epoxy resin (EP), the supermolecular shell effectively enhanced the adhesive property between the nanoparticles and the EP matrix. The thermal stability was improved, and the peak heat release rate decreased significantly after introducing the well-characterized Ni@SiO2-PA. The absorbance intensity of the toxic aromatic compounds also decreased. Moreover, the char yield of the EP composites was improved because of the synergetic coupled effects between the nickel phytate supermolecules and SiO2 nanotemplates. The possible fire-retardancy mechanism was hypothesized as follows. The crosslinking structure of the silica initially enabled the formation of a polymer network to prevent further decomposition. The N-P synergistic flame-retardancy system then generated a gas barrier and P-rich intumescent char. Besides, char-residue generation was catalyzed by introducing Ni2+, which isolated the heat and the exchange between oxygen and the matrix. Overall, this study proposes a novel green flame retardant that may enable significant improvements in preparing environmentally friendly organic-inorganic materials with applications in the fields of flame-retardant composites.

References Powered by Scopus

Enhanced thermal and flame retardant properties of flame-retardant-wrapped graphene/epoxy resin nanocomposites

400Citations
N/AReaders
Get full text

Enhanced mechanical properties of silanized silica nanoparticle attached graphene oxide/epoxy composites

381Citations
N/AReaders
Get full text

Thermal exfoliation of hexagonal boron nitride for effective enhancements on thermal stability, flame retardancy and smoke suppression of epoxy resin nanocomposites: Via sol-gel process

381Citations
N/AReaders
Get full text

Cited by Powered by Scopus

Hierarchical core–shell TiO<inf>2</inf>@LDH@Ni(OH)<inf>2</inf> architecture with regularly-oriented nanocatalyst shells: Towards improving the mechanical performance, flame retardancy and toxic smoke suppression of unsaturated polyester resin

116Citations
N/AReaders
Get full text

Green construction of multi-functional fire resistant epoxy resins based on boron nitride with core-shell structure

37Citations
N/AReaders
Get full text

Green self-assembly of h-BN@PDA@MoS<inf>2</inf> nanosheets by polydopamine as fire hazard suppression materials

27Citations
N/AReaders
Get full text

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

Sui, Y., Qu, L., Dai, X., Li, P., Zhang, J., Luo, S., & Zhang, C. (2020). A green self-assembled organic supermolecule as an effective flame retardant for epoxy resin. RSC Advances, 10(21), 12492–12503. https://doi.org/10.1039/d0ra00072h

Readers' Seniority

Tooltip

PhD / Post grad / Masters / Doc 8

100%

Readers' Discipline

Tooltip

Materials Science 3

50%

Chemical Engineering 1

17%

Biochemistry, Genetics and Molecular Bi... 1

17%

Engineering 1

17%

Save time finding and organizing research with Mendeley

Sign up for free