微粒助留助濾體系用于廢紙制漿造紙的研究

輕化工程論文編號:QH033  論文字數:14039,頁數:35

目  錄
中文摘要 I
英文摘要 II
目錄 III
1 緒論 1
1.1 前言 1
1.2 助留助濾技術發展概況 1
1.3 助留助濾機理 3
1.4 微粒助留助濾體系研究的現狀及本論文研究的意義 8
2 實驗 11
2.1  實驗原料 11
2.2  主要設備及儀器 11
2.3   實驗方法 11
3 結果與討論 15
3.1  CPAM及膨潤土用量對CPAM/膨潤土體系助留助濾效果影響 15
3.2 pH值對CPAM/膨潤土體系助留助濾效果的影響 17
3.3 硫酸鋁用量對CPAM/膨潤土體系助留助濾效果的影響 19
3.4 剪切速率對CPAM/膨潤土體系助留助濾效果影響 20
3.5 紙料的Zeta電位分析 21
3.6 CPAM體系與CPAM/膨潤土體系對手抄片物理性能影響 23
4 結論 27
致  謝 28
參考文獻 29

摘 要：本論文就單元助留助濾體系、雙元微粒助留助濾體系用于廢紙制漿造紙的助留助濾效果進行初步探討。實驗結果表明，在保持纖維負電性前提下，CPAM單元助留助濾體系、CPAM/膨潤土助留助濾體系都可以有效的改善漿料的助留助濾效果；隨著助留助濾體系加入量的逐漸增加，漿料的助留助濾效果逐步增強；CPAM/膨潤土助留助濾體系的助留助濾效果明顯高于CPAM單元助留助濾體系；而且對于漿料的pH在近中性和中性條件下，會有良好的助留助濾效果。CPAM/膨潤土體系的最佳用量CPAM0.1%、膨潤土0.2-0.3%。與未加助劑比，助劑應用達到最佳效果情況下，所抄送紙頁的表面強度略有改善，定量、厚度有所提高，但紙頁的裂斷長、環壓強度均有不同程度的下降。

關鍵詞：CPAM；CPAM/膨潤土；助留助濾；裂斷長；環壓強度
Study of microparticle retention and drainage aid system on Pulp and Paper
 
Abstract: This article introduces the study of microparticle retention and drainage aid system on Pulp and Paper. The experimental results show that Maintain the fiber under the premise of Negative , CPAM unit Retention System and CPAM / bentonite Retention system both can improve the slurry Retention effect，And with the addition of, Retention slurry to enhance the effect of, However, CPAM / bentonite Retention was significantly higher than the effect of the system unit CPAM Retention System. And for the slurry in the near-neutral pH and neutral conditions, Have a good effect of Retention .CPAM / bentonite system, the best dosage CPAM0.1%, Bentonite 0.2-0.3%. And not more than additive, additive effect of the application of the best cases, the surface of copy paper a slight improvement in strength, quantitative, increased thickness, but the paper breaking length of the ring have different compressive strength the extent of the decline in.
Keywords：CPAM; CPAM / bentonite; Retention;Breaking length; Central pressure level