Synthesis of Wood Lignin-Urea-Formaldehyde Resin Adhesive

被引：12
|
作者：
Wang, Zhe [1 ]
Xue, Jingwen [1 ]
Qu, Jianbo
Liu, Wenxia [1 ]
机构：
[1] Shandong Polytech Univ, Minist Educ, Key Lab Paper Sci & Technol, Jinan 250353, Peoples R China
来源：
MATERIAL SCIENCES AND TECHNOLOGY, PTS 1 & 2 | 2012年 / 560-561卷
关键词：
lignin; urea-formaldehyde resin; binding strength; free formaldehyde;
D O I：
10.4028/www.scientific.net/AMR.560-561.242
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Lignin-urea-formaldehyde resin adhesive was synthesized with alkali lignin from gramineae waste pulping liquor. Alkali lignin was purified and hydroxymethylated with HCHO and then crosslinked with urea-formaldehyde resin, polyvinyl alcohol and melamine. Results showed that lignin content in purified alkali lignin was 86.91%, both binding strength and free HCHO content of urea-formaldehyde resin synthesized from hydroxymethylated lignin reached the optimum value. The proper lignin amount for preparing resin was 30%, and the binding strength at this condition was 4.56MPa, and free formaldehyde content was 0.049%.
引用
收藏
页码：242 / 246
页数：5
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