Effects of flame retardants containing POC and PC structures on the flame retardant properties of epoxy resin
So far, discussions on the effects of elements on flame retardant properties have been widespread in flame retardant‐related fields, but reports on the effects of specific structures on flame retardant properties are rare. In this work, two novel phosphorus‐nitrogen flame retardants were synthesized...
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Published in | Polymers for advanced technologies Vol. 34; no. 3; pp. 1046 - 1058 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Chichester, UK
John Wiley & Sons, Ltd
01.03.2023
Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | So far, discussions on the effects of elements on flame retardant properties have been widespread in flame retardant‐related fields, but reports on the effects of specific structures on flame retardant properties are rare. In this work, two novel phosphorus‐nitrogen flame retardants were synthesized from diphenylphosphinyl chloride and diphenyl chlorophosphite. It was proved that the POC structure of the DOAT flame retardant is beneficial to form a more stable carbon layer with high phosphorus content and reduce the total amount of smoke, while the PC structure of DPAT flame retardant is conducive to produce a large amount of phosphorus‐containing substances in the gas phase, while the phosphorus content in the residual carbon is very low. Therefore, the DOAT flame retardant mainly plays a flame retardant role in the condensed phase. The DPAT flame retardant mainly plays a flame retardant role in the gas phase. The flame retardant action mechanism of the combustion process was also investigated by using scanning electron microscope (SEM), energy dispersive spectrometer (EDS), and Thermogravimetric analysis/infrared spectrometry (TG‐IR). |
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Bibliography: | Funding information Economic Demonstration Project of the State Oceanic Administration of China‐Haikou Marine Economic Demonstration Project, Grant/Award Number: #HDHY‐201901; High Level Talents Project of Hainan Natural Science Foundation, Grant/Award Number: #220RC457; Hainan Major Science and Technology Program, Grant/Award Number: #ZDKJ2021043; Hainan Provincial Key Research and Development Program, Grant/Award Number: #ZDYF2021GXJS209 |
ISSN: | 1042-7147 1099-1581 |
DOI: | 10.1002/pat.5951 |