Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A novel intrinsic flame‐retardant waterborne poly(urethane) copolymers containing phosphorus‐nitrogen
In order to improve the flame retardancy of polyurethane waterborne coatings, a reactive phosphorus and nitrogen containing monomer, designated as HO2‐N2P4, was synthesized and characterized, and then incorporated at various levels into polyurethane via copolymerization. The monomers and poly(urethane) copolymers were characterized and analyzed using Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, scanning electron microscopy, thermogravimetric analysis, and cone calorimetry. Even at low levels of HO2‐N2P4 incorporation, all the copolymers exhibit reduced thermal degradation rate and reduced flammability compared to the same properties for polyurethane containing no comonomer. Furthermore, it was observed that the flame retardant effect for the copolymers was positively correlated with the HO2‐N2P4 content.
A novel intrinsic flame‐retardant waterborne poly(urethane) copolymers containing phosphorus‐nitrogen
In order to improve the flame retardancy of polyurethane waterborne coatings, a reactive phosphorus and nitrogen containing monomer, designated as HO2‐N2P4, was synthesized and characterized, and then incorporated at various levels into polyurethane via copolymerization. The monomers and poly(urethane) copolymers were characterized and analyzed using Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, scanning electron microscopy, thermogravimetric analysis, and cone calorimetry. Even at low levels of HO2‐N2P4 incorporation, all the copolymers exhibit reduced thermal degradation rate and reduced flammability compared to the same properties for polyurethane containing no comonomer. Furthermore, it was observed that the flame retardant effect for the copolymers was positively correlated with the HO2‐N2P4 content.
A novel intrinsic flame‐retardant waterborne poly(urethane) copolymers containing phosphorus‐nitrogen
Cui, Jianguang (Autor:in) / Liu, Shujun (Autor:in) / Li, Qiuxia (Autor:in) / Chen, Jiaqi (Autor:in) / Tang, Xingsan (Autor:in) / Li, Shanqing (Autor:in) / Zhong, Shiqiang (Autor:in) / Feng, Wei (Autor:in)
Fire and Materials ; 46 ; 443-449
01.03.2022
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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