| 新型酶解木质素酚醛泡沫的制备及性能研究 |
| |
| 引用本文： | 王祺铭,海潇涵,时君友,李翔宇,李剑桥.新型酶解木质素酚醛泡沫的制备及性能研究[J].林产工业,2020,57(3):35-40. |
| |
| 作者姓名： | 王祺铭 海潇涵 时君友 李翔宇 李剑桥 |
| |
| 作者单位： | 北华大学材料科学与工程学院,吉林 132013 |
| |
| 基金项目： | 吉林省重大科技招标专项;吉林省秸秆综合利用技术创新平台项目;北华大学研究生创新计划项目 |
| |
| 摘 要： | 利用酶解木质素部分替代苯酚,以十二胺为增韧剂,成功制备了含有柔性侧链的酶解木质素酚醛树脂,并利用其制备改性酶解木质素酚醛泡沫。系统研究了该树脂的发泡工艺,结果表明:当十二胺添加量为苯酚质量的8%,固化剂用量为12%(树脂的质量分数,下同),发泡剂用量为7%,表面活性剂用量为6%时,该泡沫的综合性能较佳。同时使用核磁共振(1H NMR)对树脂结构分析,使用热重分析(TG)与扫描电镜(SEM)对泡沫进行了分析,结果表明:改性木质素酚醛泡沫孔和孔壁厚度均匀,具有规则和致密的网络结构。改性后泡沫残碳率为49.0%。研究结论为今后利用脂肪单胺体系长链结构改性木质素酚醛树脂刚性结构提供了理论基础。
|
| 关 键 词： | 十二胺 酶解木质素 发泡工艺 泡孔结构 |
Preparation and Study on New Lignin Phenolic Resin for Foaming by Flexible Enzymatic Hydrolysis |
| |
| WANG Qi-ming,HAI Xiao-han,SHI Jun-you,LI Xiang-yu,LI Jian-qiao.Preparation and Study on New Lignin Phenolic Resin for Foaming by Flexible Enzymatic Hydrolysis[J].China Forest Products Industry,2020,57(3):35-40. |
| |
| Authors: | WANG Qi-ming HAI Xiao-han SHI Jun-you LI Xiang-yu LI Jian-qiao |
| |
| Institution: | (School of Materials Science and Engineering,Beihua University,Jilin 132013,China) |
| |
| Abstract: | The enzymatic lignin phenolic resin containing flexible side chain was prepared by replacing partial phenol with enzymatic lignin and using dodecylamine as toughening agent.The foaming process of the resin was studied systematically.The results showed that the foam had the best comprehensive performance when the content of dodecylamine was 8%of the mass of phenol,the dosage of curing agent was 16%(the mass fraction of the resin,the same below),the dosage of foaming agent was 10%,and the dosage of surfactant was 6%.At the same time,1H NMR was used to analyze the structure of the resin,TG and SEM were used to characterize the foam.The results showed that the modified lignin phenolic foam hole and hole wall thickness were uniform,with regular and dense network structure.The carbon residue rate of the modified foam was 49.0%.The results provide a theoretical basis for modifying the rigid structure of lignin phenolic resin with long chain structure of fatty monoamine system. |
| |
| Keywords: | Dodecylamine Enzymatic lignin Foam process Cellular structure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
