马来酸酐-丙烯酰胺非硅稳定剂的制备及应用  

Preparation and application of maleic anhydride-acrylamide non-silicon stabilizer

作　　者：王建 孙健鹏 刘敏 徐耀威 WANG Jian;SUN Jian-peng;LIU Min;XU Yao-wei(College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper,Shaanxi University of Science&Technology,Xi′an 710021,China)

机构地区：[1]陕西科技大学轻工科学与工程学院轻化工程国家级实验教学示范中心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：《陕西科技大学学报》2020年第3期15-19,40,共6页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅重点实验室科研计划项目(15JS015)。

摘　　要：硅酸钠作为过氧化氢(H 2O 2)漂白的稳定剂,已经在造纸工业纤维漂白中得到广泛应用.然而,漂白过程中使用硅酸钠,易在设备上沉积出坚硬的硅垢,从而阻碍生产的连续化.为了解决过氧化氢漂白过程中的硅垢问题,以马来酸酐和丙烯酰胺为单体,制备了一种新型非硅稳定剂,将其用于金属离子螯合.结果表明,当两者配比为1∶3、反应温度80℃、反应时间2 h、引发剂用量7%时,对Mg^2+、Ca^2+、Fe^3+的螯合值分别为55 mg/g、96 mg/g和270 mg/g.同时,将Na2SiO3与自制非硅稳定剂分别用于过氧化氢漂白,结果表明,在硅酸钠体系下,漂后浆白度为62.23%,残余过氧化氢量为0.23 g/L;在自制非硅稳定剂用量为0.5%时,漂后浆白度为62.62%,残余过氧化氢量为0.21 g/L.Sodium silicate,as a stabilizer for hydrogen peroxide(H 2O 2)bleaching,has been widely used in fiber bleaching in the paper-making industry.However,the use of sodium silicate in the bleaching process tends to deposit hard silicon scale on the equipment,thereby hindering the continuous production.In order to solve the problem of silicon scale in hydrogen peroxide bleaching process.A novel non-silicon stabilizer,which is used for metal ion chelation is prepared by using maleic anhydride and acrylamide as monomers.When the ratio is 1∶3,the reaction temperature is 80℃,the reaction time is 2 h,the initiator dosage is 7%,and the chelating values for Mg^2+,Ca^2+and Fe 3+are 55 mg/g,96 mg/g and 270 mg/g,respectively.At the same time,Na2SiO3 and self-made non-silicon stabilizer is used for hydrogen peroxide bleaching respectively.The results show that under the sodium silicate system,the bleaching whiteness is 62.23%,and the residual hydrogen peroxide is 0.23 g/L.When the amount of the stabilizer is 0.5%,the whiteness after bleaching is 62.62%,and the amount of residual hydrogen peroxide is 0.21 g/L.

关 键 词：非硅稳定剂 金属离子螯合 过氧化氢漂白 硅酸钠 

分 类 号：TS727.1[轻工技术与工程—制浆造纸工程]