Hard polyurethane foam composition with fast demolding performace

The hard polyurethane foam composition with fast demolding performance consists of: composite polyether 100 weight portions comprising polyether prepared with cane sugar and olefin oxide through addition reaction 30-60 weight portions, polyether prepared with sorbic alcohol and olefin oxide through addition reaction 5-25 weight portions, polyether prepared with toluene diamine, triisopropanolamineand olefin oxide through addition reaction 15-30 weight portions, and polyether prepared with glycerin and olefin oxide through addition reaction 5-20 weight portions; composite catalyst 1.6-3.3 weight portions; foaming agent 7-16 weight portions; water 1.5-3.0 weight portions; foam stabilizer 1.4-4.0 weight portions; and isocyanate polymer 95-150 weight portions. The present invention has excellent flowability, fast demolding performance, excellent mechanical performance and high size stability.