Preparation and properties of flame retardant acrylic resin coatings
To solve the problems of low flame retardant performance in the use of acrylic resin,a flame-retardant acrylic resin coating PA-IFR was prepared by adding intumescent flame retardants(IFR)composed of ammonium polyphosphate(APP),pentaerythritol(PER)and melamine(MEL)to the acrylic resin emulsion by combining ultrasonic and mechanical stirring.The chemical structure,transmittance,hardness and flame retardant properties of PA-IFR were tested by infrared spectrometer,X-ray diffractometer,pencil hardness tester and limiting oxygen index meter.The results show that the hardness of the PA-IFR reaches 5 H and the limiting oxygen index(LOI)value reaches 32.6%when the mass fraction of the IFR is 30%and the formula ratio of APP/PER/MEL is 2∶1∶1.The acrylic resin coating prepared in this study is a flame retardant material.
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