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阳离子球形聚电解质刷的助留助滤性能
Performances of Cationic Spherical Polyelectrolyte Brushes Used as Retention and Drainage Aids
收稿日期：  
DOI：10.11980/j.issn.0254-508X.2016.07.002
关键词:  助留助滤  CS-PDMC  填料  首程留着率  滤水速度
Key Words:retention and drainage properties  CS-PDMC  fillers  retention rate  filtration rate
基金项目:国家自然科学基金资助项目(31170558)。
作者单位
黄希妍1 1.武汉大学印刷与包装系,湖北武汉,430079 
何宇航1 1.武汉大学印刷与包装系,湖北武汉,430079 
郭　婷1 1.武汉大学印刷与包装系,湖北武汉,430079 
黎厚斌1,* 1.武汉大学印刷与包装系,湖北武汉,430079 
袁世矩2 2.湖北工业大学,湖北武汉,430068 
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摘要:制备了以碳球(CS)为核、甲基丙烯酰氧乙基三甲基氯化铵(DMC)为壳的阳离子球形聚电解质刷(CS-PDMC),探讨了其与阴离子聚丙烯酰胺（APAM）形成的二元体系中CS-PDMC用量对两种填料(重质碳酸钙（GCC）、高岭土)的首程留着率及浆料滤水性能的影响。当浆料中GCC用量15%时，加入用量0.8%的CS-PDMC(相对于绝干浆，以下同),GCC的首程留着率最高,为79.3%；当浆料中高岭土用量15%时，加入用量1.0%的CS-PDMC,高岭土的首程留着率最高,为88.5%。当浆料中GCC用量10%时，加入用量0.8%的CS-PDMC,浆料滤水速度最快,为0.91 mL/s；当浆料中高岭土用量5%时，加入用量0.8%的CS-PDMC,浆料的滤水速度最快,为0.83 mL/s。
Abstract:Cationic spherical polyelectrolyte brush has become new area of research as paper retention and drainage aids because of its structure characteristics.In this paper, the spherical polyelectrolyte brushes (CS-PDMC) with carbon spheres (CS) as core and methyl methacrylate three methyl ammonium chloride (DMC) as shell were prepared. The effects of different CS-PDMC dosageson the retention rates of two kinds of fillers (GCC, kaolin) and on the drainage of the furnishescontaining two kinds of fillers (GCC, kaolin) were studied. When 15% GCC(on the oven-dried pulp) and 0.8% CS-PDMC were added to the pulp, the retention rate of the filler was the highest for 79.3%; When 15% kaolin and 1.0% CS-PDMC were added to the pulp, the retention rate of the filler was the highest for 88.5%.When 10% GCC and 0.8% CS-PDMC were added to the pulp, the drainage rate was the fastest for 0.91 mL/s; when 5% kaolin and 0.8% CS-PDMC were added to the pulp, the drainage rate was the fastest for 0.83 mL/s. It indicated that using a certain amount of CS-PDMC was of benefit to the retention and drainage properties of the furnish containing the fillers.
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