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造纸白水封闭循环利用造成了其中细小的胶黏性物质的不断富集,给纸机运行以及成纸质量带来越来越严重的负面影响。本文首先采用常用的检测方法,对新闻纸厂造纸白水的基本物化特性进行表征;在此基础上,用扫描电镜观测白水固形物等物质,定性分析其中的微细胶黏物特征;然后通过TG和Py-GC-MS对其热失重特性和组分特征进行分析,推断其来源;最后对其粒径进行检测,得到其微细胶黏物的结果如下,即粒径的主要分布区域为0.5～6μm之间,体积含量约为13.17mm3/mL,平均粒径8.31μm。
The closed recycling of paper white water has resulted in the continuous enrichment of fine adhesive substances, the worsening of the negative impact on the operation of the paper machine and the quality of the paper. In this paper, the common physical and chemical properties of papermaking white water were characterized by using common detection methods. On the basis of this, we observed the characteristics of the white sticky solid by scanning electron microscopy and then analyzed the characteristics of the fine sticky matter by TG and Py -GC-MS analysis of its thermal weight loss characteristics and component characteristics to infer its source; Finally, the particle size was detected to obtain the results of its micro-stickies are as follows, the main distribution of the particle size of 0.5 ~ 6μm Between the volume content of about 13.17mm3 / mL, the average particle size of 8.31μm.