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论文编号:QH047 论文字数:16981,页数:50
天然高分子对二次纤维抄纸纸张增强工艺的研究
摘要:本论文所研究的是天然高分子对二次纤维抄纸纸张的增强作用,此研究所用到的天然高分子有以下几种:壳聚糖、阳离子聚丙烯酰胺(CPAM)和玉米淀粉二元体系(1:3)、阳离子聚丙烯酰胺(CPAM)和玉米淀粉二元体系(1:5)、阳离子聚丙烯酰胺和壳聚糖二元体系(1:1)、 阳离子聚丙烯酰胺和壳聚糖二元体系(1:2)、两性淀粉、阳离子淀粉、阳离子淀粉和聚丙烯酰胺PAM(分子量为300万)二元体系(1:1),分别测试所抄得纸张的物理性能指标(主要是定量、抗张强度、撕裂度),并进行比较,得出一系列的结果,从而得出上述天然高分子化合物中两性淀粉和阳离子聚丙烯酰胺和玉米淀粉二元体系(1:5)对二次纤维抄纸纸张的增强效果最为显著,而且两性淀粉在1.5%-2.0%,阳离子聚丙烯酰胺和玉米淀粉二元体系(1:5)在0.4%-0.5%添加范围之内效果最好,以便用于实际生产。
关键词:壳聚糖;淀粉;抗张强度;撕裂度
Improvement of paper strength made from secondary fibers with natural macromolecules
Abstract :In this paper, the study is a natural polymer fiber of the second paper to enhance the role of the paper, the Institute used the natural polymer are as follows: chitosan, cationic polyacrylamide (CPAM) and corn starch b element system (1:3), cationic polyacrylamide (CPAM) and corn starch binary system (1:5), cationic polyacrylamide and chitosan binary system (1:1), cationic polyacrylamide acid amine and chitosan binary system (1:2), amphoteric starch, cationic starch, cationic starch and polyacrylamide PAM (molecular weight 3,000,000) binary system (1:1), were tested by a paper copy Indicators of physical properties (mainly quantitative, tensile strength, tear degrees), and compared the results of a series of drawn so as to arrive at the natural macromolecular compound in the above-mentioned amphoteric starch and cationic polyacrylamide and corn starch binary system (1:5) of secondary fiber paper paper to enhance the effect of the most significant, and gender of starch in 1.5% -2.0%, cationic polyacrylamide and corn starch binary system (1:5) in 0.4% -0.5 % add the best range to be used in actual production.
Key words: chitosan; starch; tensile strength; tear resistance
目 录
中文摘要 1
英文摘要 II
1 绪论 1
1.1 研究的意义、目的和背景 1
1.2 研究的内容和所需解决的问题 3
2 实验内容 4
2.1 实验仪器与试剂 4
2.2 碎解 5
2.3 打浆 5
2.4 测水分 5
2.5 计算绝干浆用量 5
2.6 各种药品加入量 6
2.7 抄纸 10
2.8 物理性能测试 10
3 实验结果记录与分析 11
3.1 玉米淀粉 11
3.2 壳聚糖 13
3.3 两性淀粉 16
3.4 阳离子淀粉具体加入量及对比 18
3.5 阳离子聚丙烯酰胺(CPAM)和玉米淀粉(1:3) 21
3.6 阳离子聚丙烯酰胺(CPAM)和玉米淀粉(1:5) 23
3.7 阳离子聚丙烯酰胺(CPAM)和壳聚糖(1:1) 26
3.8 阳离子聚丙烯酰胺(CPAM)和壳聚糖(1:2) 29
3.9 阳离子淀粉和聚丙烯酰胺PAM(分子量为300万)二元体系(1:1) 33
3.10 对比分析 35
4 结论 42
致 谢 43
参考文献 44