RESEARCH ARTICLE
Study on the Synthesis and Application in the Polycarbonat of Silicone- Cyclophosphazene Flame Retardant
Ling Xia Hu*, 1, 2, Pan He2, Shi jiang Fang2
Article Information
Identifiers and Pagination:
Year: 2015Volume: 9
First Page: 29
Last Page: 33
Publisher ID: TOCENGJ-9-29
DOI: 10.2174/1874123101509010029
Article History:
Received Date: 08/01/2015Revision Received Date: 29/03/2015
Acceptance Date: 07/04/2015
Electronic publication date: 08/6/2015
Collection year: 2015
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Silicone-cyclophosphazene (SCP) as a flame retardant was synthesized using hydroxyl terminated polydime thylsiloxane(PDMS-OH) and hexa cyclophosphazene silicone oil and phosphonitrilic chloride trimer(HCCTP) as the precursors, The properties of SCP-modified polycarbonat(PC) such as thermal stability, flame retardant properties and carbon layer after combustion were analyzed. It was found that the target product was SCP, as evidenced by infra-red spectrum (IR)and nuclear magnetic resonance(31P-NMR) spectra results. The PC/SCP composite had higher thermal stability, with higher amount of carbon residue at both initial degradation temperature and 800 oC. When the addition of SCP was 10 wt.% in the PC/SCP composite, the oxygen index increased from 28 to 34%, and a V-0 level was achieved on UL – 94 test. Also, a compact structure of the residue carbon layer after combustion was observed.
