Pumice stone, cement and phenolic resin composite foaming material and preparation method thereof
A technology of phenolic resin and composite foam, applied in the field of thermal insulation foam materials, can solve the problems of poor thermal insulation performance of inorganic thermal insulation materials, low strength of organic phenolic foam materials, poor water resistance, etc., and achieve high bonding strength, enhanced toughness, powder The effect of improving the phenomenon
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Embodiment 1
[0047]The pumice cement phenolic resin composite foam material is composed of phenolic resin, pumice powder, cement, Tween-80, petroleum ether, and phosphoric acid. The weight ratio of each component is as follows: 100 parts of phenolic resin; 40 parts of pumice powder; 22 parts of cement ; 4 parts of surfactant; 7 parts of foaming agent; 5 parts of curing agent. Among them, the phenolic resin is prepared from phenol, paraformaldehyde and alkaline catalyst sodium hydroxide aqueous solution, and its mass ratio is phenol:paraformaldehyde:20% sodium hydroxide aqueous solution=100:60:1.5.
Embodiment 2
[0049] The pumice cement phenolic resin composite foam material is composed of phenolic resin, pumice powder, cement, Tween-80, petroleum ether, and phosphoric acid. The weight ratio of each component is as follows: 100 parts of phenolic resin; 35 parts of pumice powder; 25 parts of cement ; 3 parts of surfactant; 6 parts of foaming agent; 4 parts of curing agent. Among them, the phenolic resin is prepared from phenol, paraformaldehyde and alkaline catalyst sodium hydroxide aqueous solution, and its mass ratio is phenol:paraformaldehyde:20% sodium hydroxide aqueous solution=90:50:2.5.
Embodiment 3
[0051] The pumice cement phenolic resin composite foam material is composed of phenolic resin, pumice powder, cement, Tween-80, petroleum ether, and phosphoric acid. The weight ratio of each component is as follows: 100 parts of phenolic resin; 45 parts of pumice powder; 20 parts of cement ; 5 parts of surfactant; 7.5 parts of foaming agent; 6 parts of curing agent. Among them, the phenolic resin is prepared from phenol, paraformaldehyde and alkaline catalyst sodium hydroxide aqueous solution, and its mass ratio is phenol:paraformaldehyde:20% sodium hydroxide aqueous solution=95:55:2.
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