Resinification of Factory-sawdust in Phenol and Optimum Resinification Processing Parameters

摘要：

　　in order to make full use of wood residues,in this study,we aimed to synthesize resol phenol-formaldehyde resin from liquefied factory-sawdust in phenol in which phenol is 5 times to factory-sawdust in presence of sulfuric acid as catalyst.By using the orthogonal experiment method,the molar ratio of formaldehyde to liquefied factory-sawdust in phenol (LSP) n(F):n(LSP),the molar ratio of sodium hydroxide to liquefied factory-sawdust in phenol n(NaOH):n(LSP),the resinification temperature and the resinification time on chemical properties of liquefied sawdust resins (LSR) were investigated.The results show that the ratio of sodium hydroxide to liquefied factory-sawdust in phenol plays the most important role in the processing of resinification,the ratio of formaldehyde to liquefied factory-sawdust in phenolfollows,the resinification time and the resinification temperature come to the last two.The optimum processing conditions are as follows:n(NaOH) ∶ n(LSP)=0.5,n(F) ∶ n(LSP)=2.0,resinification temperature is 80 ℃ and resinification time is 3.0h.The physical properties of the poplar three-layer plywood bonded with LSR were similar to those with normal PF resins and also satisfied the demands ofIlevel.

关键词： Resinification wood liquefaction resinification processing parameters phenol

作者: KANG Hai Jiao ZHANG Qiu Hui

作者单位: Beijing Forestry University, Beijing, China

会议类型: 国际会议

会议名称: 2nd International Conference on Polymer Composities and Polymer Testing (2013第二届高分子复合材料与高分子测试国际会议暨先进工业技术与方案国际会议)(ISPCPT2013)

会议地点: 太原

会议语种:英文

页码: 282-286

在线出版日期: 2013-03-22（万方平台首次上网日期，不代表论文的发表时间）