Study on the paper plate macerated by modified amidinourea phosphate fire retardant liquid

The paper plate is treated by the watery intumescent fire retardant.First,the watery fire retardant,whose component is modified amidinourea phosphate is prepared,then the 125g ordinary paper plate is macerated in the fire retardant liquid with different mass concentration for 5 min,and baked to constant weight in vacuum dry oven at 80 ℃.After the sample is treated by the fire retardant liquid of above 15% mass concentration,its combustion properties fit with claims of the standards.The sample macerated by the watery fire retardant possesses evident fire retardant effect.