乙醇木素改性制备造纸增强剂  

Paper Strengthening Agent Prepared from Ethanol Lignin

作　　者：曹建武[1] 张美云[1] 李金宝[1] 崔晓翠[1] 

机构地区：[1]陕西科技大学造纸工程学院陕西省造纸技术及特种纸品开发重点实验室,陕西西安710021

出　　处：《纸和造纸》2010年第9期41-44,共4页Paper and Paper Making

基　　金：陕西省"13115"科技创新工程重大科技专项(2008ZDKG-43)资助

摘　　要：用羟甲基化的方法改性乙醇木素制备瓦楞原纸增强剂,研究了羟甲基化的最佳条件,用红外光谱(FT-IR)对合成的增强剂进行了表征。木素羟甲基化制备瓦楞纸增强剂的单因素实验表明,在乙醇木素/甲醛质量比为1:0.25,反应温度为70℃,反应时间为2.5h,反应pH值为10时,瓦楞纸有最佳的抗张强度和环压强度,分别提高23%和20%左右,改性乙醇木素和乙醇木素的红外光谱图表明乙醇木素与甲醛已成功地发生羟甲基化反应。Corrugated medium strengthening agent was prepared from ethanol lignin by method of hydroxymethylation. Optimum conditions of hydroxymethylation were studied. Strengthening agent was characterized by infrared spectrum （FT-IR）. Single factor experiment of ethanol lignin hydroxymethylation showed that optimum conditions of hydroxymethylation was ethanol lignin / formaldehyde （mass ratio） 1：0.25, reaction temperature 70℃, time 2.5h, pH 10. At optimum conditions of hydroxymethylation, tensile strength and ring crush strength increased 23% and 20% respectively, infrared spectrum of modified ethanol lignin and ethanol lignin showed that ethanol lignin and formaldehyde reacted successfully.

关 键 词：羟甲基化 乙醇木素 纸张增强剂 

分 类 号：TS727.3[轻工技术与工程—制浆造纸工程]