@article{ref1,
title="Improving the reaction-to-fire properties of thermoplastic polyurethane by new phosphazene-triazinyl-based covalent organic framework",
journal="ACS applied materials and interfaces",
year="2022",
author="Afshari, Mohaddeseh and Dinari, Mohammad",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="In this study, an approach to simultaneously improve fire resistance and mechanical performance of thermoplastic polyurethane (TPU) was introduced through the penetration of a conjugated network containing nitrogen and phosphorus elements. For this purpose, a Bg-HCCP COF was synthesized through a solvothermal method from benzoguanamine (Bg) and hexachlorophosphazene (HCCP) monomers. Then, it was combined with TPU using the wet mixing method. The TPU/Bg-HCCP composites showed better mechanical strength than the untreated sample. The fire safety of TPU/Bg-HCCP composites was greatly improved by increasing the Bg-HCCP contents. The reduction of the peak heat release rate and the total heat release for the TPU/Bg-HCCP composite with 3 wt % Bg-HCCP were about 44.8 and 60.4%, respectively. Besides, the results showed that adding Bg-HCCP to TPU significantly improved the suppression of smoke generation so that 3% by weight of the fire retardant reduced the total smoke released by 53.1%. It also decreased the peak of the carbon monoxide production rate by 26.5%. Generally, our research provides a promising strategy for constructing flame-retardant composites with high performance.<p /> <p>Language: en</p>",
language="en",
issn="1944-8244",
doi="10.1021/acsami.2c14509",
url="http://dx.doi.org/10.1021/acsami.2c14509"
}