The Effect of Soluble Ammonium Polyphosphate on the Properties of Water Blown Semirigid Polyurethane Foams

Table 2

Details of TG and DTG curves.

Samples	Initial decomposition temperature (°C)	Temperature of stages (°C)	(°C)	Residual char (%)
SPUF/APP19	170	(1) 100~225	(1) 190	20
		(2) 225~390	(2) 355
		(3) 390~500	(3) 410
SPUF	300	(1) 200~450	(1) 390	15
		(2) 450~600	(2) 490
APP	180	(1) 100~225	(1) 180	25
		(2) 225~275	(2) 250
		(3) 275~360	(3) 325
		(4) 360~440	(4) 390