METHOD FOR MAKING POLYURETHANE FOAMING MATERIAL

摘要

An environmentally friendly PU foaming apparatus and a method thereof according to the present invention comprise a raw material insertion step, an emulsification stage and a foaming step. The present invention lowers the specific gravity of a hydroxide containing OH by causing an emulsification reaction on the hydroxide containing OH by mixing the hydroxide containing OH with harmless gas, forms a mixture by mixing the hydroxide containing OH and an isocyanate polymer containing NCO under ambient pressure environment and forms a PU foam by allowing foaming action to be caused in the mixture when the harmless gas is escaped from the mixture. Accordingly, the present invention is able to accomplish environmental protection effects since PU foaming is able to be directly performed without using HCFC and water and is able to guarantee the quality of PU foam by preventing hydrolysis reaction from being caused.