Functionalizing carbon nanotubes by grafting cyclotriphosphazene derivative to improve both mechanical strength and flame retardancy

Haiyun Ma; Lici Zhao; Jiawei Liu; Jun Wang; Jianzhong Xu

doi:10.1002/pc.22883

journal article·2014-11

Functionalizing carbon nanotubes by grafting cyclotriphosphazene derivative to improve both mechanical strength and flame retardancy

Haiyun Ma, Lici Zhao, Jiawei Liu, Jun Wang, Jianzhong Xu

Polymer Composites· Volume 35· Issue 11

Publisher page

Source abstract

Abstract

An intumescent flame‐retardant, hex(4‐carboxylphenoxy) cyclotriphosphazene (HCPCP) was synthesized and covalently grafted on to the surface of multiwalled carbon nanotubes (MWNTs) to obtain MWNT‐HCPCP. MWNT/epoxy resin (EP) and MWNT‐HCPCP/ EP nanocomposites were prepared via thermal curing. Transmission electron microscopy results showed that a core–shell structure with MWNTs as the hard core and HCPCP as the soft shell were formed after HCPCP (10 wt%) were attached to the MWNTs. The results of flammability tests showed an increased limited oxygen index value for MWNT‐HCPCP/EP nanocomposites. The mechanical properties including tensile strength and elongation were both dramatically improved due to the better dispersion of MWNT‐HCPCP in the EP matrix. The grafting of HCPCP can improve both the dispersion of nanotubes in polymer matrix and flame retardancy of the nanocomposites. POLYM. COMPOS., 35:2187–2193, 2014. © 2014 Society of Plastics Engineers

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Research context

Polymers Nanomaterials

OpenAlex topics: Flame retardant materials and properties · Polymer composites and self-healing · Synthesis and properties of polymers

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Chemistry and Environmental Science Hebei University Baoding 071002 China

Funding

Laboratory Open Fund of Hebei University · Natural Science Research Program of Hebei University

References (25)

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