MANUFACTURING BINDERLESS PARTICLEBOARD FROM WHEAT STRAW

摘要：

Bonding of cellulose fibers can be improved by liquid hot water pretreatment of the fibers.In this work,liquid hot water pretreatment was applied to wheat straw.The pretreated wheat straw was used to produce binderless particleboard panels.The effect of reaction temperature and residence time on the yield of cellulose pulps,chemical composition of wheat straw,and modulus of rupture,internal bond and water absorption of panel boards was investigated.The results indicated that the yield of cellulose pulps decreased with increasing reaction temperature and residence time,whereas the degradation of hemicellulose increased.The modulus of rupture and internal bond increased while water absorption of panels decreased as pretreatment severity increased.The optimum pretreatment condition,with 19.5 MPa of modulus of rupture,0.2633 MPa internal bond and 58.7％ of water absorption of panels,occurred under 180°C temperature and 20 minute residence time.

关键词： wheat straw fibers liquid hot water pretreatment binderless particleboard

作者: Peng Luo Chuanmin Yang

作者单位: College of Mechanical Engineering,Tianjin University of Commerce,Tianjin 300134,China.

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 1347-1350

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）