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

Table 3

Composition of CPCP.

No.	Polyether polyol 4110 (g)	Isocyanate (g)	Catalyst (g)	Pulverized coal (g)
J-1	40	40	0.4	100
J-2	40	40	0.4	90
J-3	40	40	0.4	80
J-4	40	40	0.4	70
J-5	40	40	0.4	60
J-6	40	40	0.4	50