麦草机械浆的制备及其在箱纸板中的应用研究  

Preparation of Wheat Straw Mechanical Pulp and Its Application in Containerboard Manufacturing

作　　者：陈满 沈军 侯贺伟 Chen Man;Shen Jun;Hou Hewei(Lee&Man Paper Manufacturing Ltd.,Nanjing,Jiangsu 210037,China)

机构地区：[1]江苏理文造纸有限公司,南京210037

出　　处：《中华纸业》2023年第6期1-5,共5页China Pulp & Paper Industry

摘　　要：以麦草为原料,在不加化学药品的前提下,采用热水预处理制备麦草机械浆,并与工业废纸浆共混配抄成纸,以期望满足箱纸板物理强度要求,改善我国造纸原材料短缺的问题,同时可以避免环境污染。研究结果表明:选定磨浆前热水预处理时间为120min,温度为120℃,液比为1∶4,磨浆过程为高浓三段磨浆,磨浆浓度分别为20%、15%、15%,盘磨间隙分别为0.25mm、0.15mm、0.15mm时磨出的浆料纤维性质较好,良浆得率较高。将以上麦草机械浆以5%~10%的比例与工业废纸浆进行共混配抄,其纸张物理强度能够达到国家标准。In this paper,wheat straw was used as raw material to produce containerboard.In this process,wheat straw mechanical pulp was prepared by hot water pretreatment without adding chemicals and blended with industrial waste pulp,so as to meet the physical strength requirements of containerboard.It will help alleviate the shortage of raw materials for papermaking in China,avoid environmental pollution and improve the economic benefits.Results showed that the pretreatment time of hot water is 120min,the temperature is 120℃,the liquid ratio is 1:4,the grinding process is high concentration three-stage grinding,the grinding concentration is 20%in the first stage,15%in the second stage and 15%in the third stage,and the disc grinding gap is 0.25mm in the first stage,0.15mm in the second stage and 0.15mm in the third stage.Under this condition,the fiber properties of the pulp are better and the yield of qualified pulp is higher.Thus,by blending wheat straw mechanical pulp with waste pulp at a ratio of 5%-10%,the physical strength of the paper can meet the production requirements.

关 键 词：麦草机械浆 废纸浆 箱纸板 物理强度 

分 类 号：TS749.2[轻工技术与工程—制浆造纸工程] TS743.3TS761.7