木质素改性酚醛树脂微球的制备与工艺研究  

Preparation and Technology of Lignin Modified Phenolic Resin Microspheres

作　　者：薛英豪 孟付良 周大鹏 熊意 吴忆彤 高琦 李为民[1] 任庆功[1] XUE Yinghao;MENG Fuliang;ZHOU Dapeng;XIONG Yi;WU Yitong;GAO Qi;LI Weimin;REN Qinggong(Changzhou University,Changzhou 213000,China;Hangmo New Material Group Limited Company,Huzhou 313300,China;Jiangsu Gaoke Petrochemical Limited Company,Yixing 214200,China)

机构地区：[1]常州大学,江苏常州213000 [2]杭摩新材料集团股份有限公司,浙江湖州313300 [3]江苏高科石化股份有限公司,江苏宜兴214200

出　　处：《化学反应工程与工艺》2022年第2期162-167,192,共7页Chemical Reaction Engineering and Technology

基　　金：2021年江苏省研究生实践创新计划项目(SJCX21_1228);2020年湖州市南太湖精英计划项目;宜兴市基础设施-重大企业研发机构项目(2018)。

摘　　要：利用木质素部分替代苯酚与甲醛反应制备木质素改性酚醛树脂微球,研究木质素的替代量、酚醛物质的量之比、分散剂用量和催化剂用量对产物的影响。结果表明:木质素的加入显著降低了改性酚醛树脂(LPR)微球的粒径,当木质素替代量为40%(质量分数)时,苯酚和甲醛物质的量之比为1:1.3、分散剂的用量为2.5%(质量分数)、催化剂用量为2.5%(质量分数)时,可以制备出粒径在50~100μm的改性酚醛树脂微球。木质素的加入提高了LPR微球的热稳定性,且其含碳量依旧很高。Phenolic resin microspheres modified by lignin were prepared by reaction of formaldehyde with phenol partially replaced by lignin.The effects of lignin replacement,molar ratio of phenol to formaldehyde,dosage of dispersant and catalyst on the products were studied.The results showed that the addition of lignin significantly reduced the particle size of the modified phenolic resin microspheres(LPR).When the replacement amount of lignin was 40%(mass fraction),molar ratio of phenol to formaldehyde was 1:1.3,dosage of dispersant was 2.5%(mass fraction)and dosage of catalyst was 2.5%(mass fraction),the particle size of the modified phenolic resin microspheres ranged from 50μm to 100μm was prepared.The addition of lignin improved the thermal stability of LPR microspheres,and the carbon content of LPR microspheres was still high.

关 键 词：木质素 酚醛树脂 微球 工艺研究 

分 类 号：TQ320.61[化学工程—合成树脂塑料工业]