PREPARATION AND CHARACTERIZATION OF RIGID POLYURETHANE FOAM FROM LIQUEFIED BAGASSE

摘要：

Bagasse was liquefied in the mixture of polyethylene glycol and glycerin as the liquefying reagent at 150oC under atmospheric pressure with sulfuric acid as the catalyst. The liquefied bagasse obtained had a hydroxyl value of 315~432 mg KOH/g and a residue yield of 0.98％ at liquefaction time of 3h. Rigid polyurethane foam was prepared from the liquefaction products and diphenylmethane diisocyanate (MDI) in the presence of various additives. The density and compressive strength of polyurethane foams were affected by flame retardant and catalysts. The increase of flame retardant content up to 15％ based on the total polyol enhanced the compressive strength of polyurethane foams to maximum of 207.69 kPa.

关键词： bagasse polyurethane liquefaction polyol

作者: Liu Juanjuan Chen Fangeng Zhu Lijing

作者单位: State Key Laboratory of Pulp and Paper Engineering,South China University of Technology, Guangzhou,510640, China

会议类型: 国际会议

会议名称: 4th ISETPP(第四届制浆造纸新技术国际研讨会)

会议地点: 广州

会议语种:英文

页码: 185-188

在线出版日期: 2010-11-08（万方平台首次上网日期，不代表论文的发表时间）