文献类型：会议论文

英文题名：Novolak type Phenol Formaldehyde Resin from Waste Brown-rotted Wood

作者：Li, Gaiyun[1] Qin, Tefu[1]

第一作者：李改云

通信作者：Li, GY[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

会议论文集：1st International Conference on High Performance Structures and Materials Engineering

会议日期：MAY 05-06, 2011

会议地点：Beijing, PEOPLES R CHINA

语种：英文

外文关键词：Waste wood; Liquefaction; Novolak PF resin

年份：2011

摘要：The waste brown-rotted wood was liquefied in phenol with phosphoric acid as a catalyst and the resulting liquefied products were condensed with formaldehyde to yield novolak liquefied wood-based phenol formaldehyde resin (LWF). The results showed that brown-rotted wood could be almost completely liquefied within 0.5 h at phenol to wood (P/W) ratio 2. An increase in P/W ratio from 2 to 3 slightly improved the flow property of LWF, but accompanied by decreasing the product yield from approximately 140 to 120 %. The increase of liquefaction time from 30 min to 60 min did not have a significant influence on the resulting LWF. The thermofluidity of LWF were compared to that of the commercial novolak PF resin, and could be used to make moldings with similar thermal property and mechanical properties to those obtained from the conventional novolak PF resin.