Study on Liquefaction Technology of Bamboo Powder in the Dolyethylene Glycol

The liquefaction technology of bamboo powder was studied by taking dolyethylene glycol 400 as the solvent. The results showed that the liquefaction rate could reach 98.3% when the liquidsolid ratio was 3∶1, the dosage of concentrated sulphuric acid was 6%, the bamboo powder was input gradually and the reaction took 2h at 150℃. Under the above condition, the hydroxyl value of the liquefied polyol ranged from 152mg KOH/g to 244mg KOH/g, which was suitable for the preparation of hemihorniness foam.