Study on the Interaction between Low-Viscosity High-Permeability Pregrouting Sealing Material and Coal and Its Application

Table 4

Composition of CNMCP.

No.	Polylactide polyol (g)	Polyether polyol 4110 (g)	Isocyanate (g)	Charring agent (g)	Red phosphorus (g)	Melamine (g)	Catalyst (g)	HGB (g)	Pulverized coal (g)
X-1	16	24	40	8	4	8	0.4	12	100
X-2	16	24	40	8	4	8	0.4	12	90
X-3	16	24	40	8	4	8	0.4	12	80
X-4	16	24	40	8	4	8	0.4	12	70
X-5	16	24	40	8	4	8	0.4	12	60
X-6	16	24	40	8	4	8	0.4	12	50