Study on Synthesis and Properties of Flame-retardant Waterborne Polyurethanes
SONG Haixiang
WANG Yanfei
ZHANG Yanwei
WANG Meng
Abstract：The waterborne polyurethanes were synthesized with polypropylene oxide glycol (PPG), isophorone di?isocyanate (IPDI),toluene diisocyanate(TDI)and dihydroxy methyl propionic acid (DMPA) as basic materials , then flame retardant FR-600 was introduced in the waterborne polyurethanes with the blending method ,ob- <br> tained a series of flame-retardant waterborne polyurethanes. The synthetic products were characterized by infra?red spectrum, and its performance were studied by oxygen index and Zeta potential meter. The Results showed that the flame retardant performance of waterborne polyurethanes are significantly improved by adding flame re?tardant FR-600. For IPDI type of WPU, the limit oxygen index of waterborne polyurethane improves with the in?creasing of flame retardant FR-600, it has reached 37%when the content of flame retardant FR-600 is 8%of wa?terborne polyurethane resin, making the waterborne polyurethane from flammable level to flame retardant level. For TDI type of WPU, the limiting oxygen index has reached 36%when the flame retardant additives is 10%, al?so reached the non-combustible level. Flame-retardant performance and stability of IPDI type flame-retardant waterborne polyurethane is superior to TDI type flame-retardant WPU, particle size and Zeta potential test showed that particle size and stability of the two kinds of WPU has little change after addition of flame retardant.
Keywords：flame retardantwaterborne polyurethanelimit oxygen index
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 21-26 )