Fire Propagation Performance of Intumescent Fire Protective Coatings Using Eggshells as a Novel Biofiller

Table 1

Compositions of intumescent fire protective coatings.

Ingredients	Parts by weight for formulations
	A	B	C	D
APP	18.00	18.00	18.00	18.00
MEL	9.00	9.00	9.00	9.00
PER	9.00	9.00	9.00	9.00
TiO2	5.50	5.50	5.50	2.75
Al(OH)3	—	5.50	—	2.75
Mg(OH)2	5.50	—	—	2.75
CES	—	—	5.50	2.75
Binder
Acrylic resin	53.00	53.00	53.00	53.00