Enhancement of Pulp Strength by Forming Polyelectrolyte Multilayers on APMP Fibers
Enhancement of Pulp Strength by Forming Polyelectrolyte Multilayers on APMP Fibers
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通过在 APMP 纤维上形成聚电解质多层来增强纸浆强度
DOI：
10.4028/www.scientific.net/amm.496-500.171
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发表时间：
2014-01
期刊：
影响因子：
--
通讯作者：
Shoujuan Wang
中科院分区：
文献类型：
--
作者：
Ge Tian;Yunyun Sun;Fangong Kong;Shoujuan Wang
采用逐层沉积技术提高碱性过氧化物机械浆（APMP）的物理强度。选择阳离子淀粉（CS）、阴离子聚丙烯酰胺（APAM）和阳离子聚丙烯酰胺（CPAM）在APMP纤维表面形成聚电解质多层膜。讨论并比较了不同聚电解质吸附在纤维上对纸浆物理强度的改善作用。结果表明，经CPAM处理后，APMP纤维的断裂长度和断裂指数分别提高了53%和83%，高于未处理纸浆；最佳处理条件为60 mgCPAM/g纸浆，纸浆浓度1.5%，处理时间9min。CPAM-APAM聚电解质多层沉积纸浆的物理强度高于CS-APAM等其他多层沉积纸浆。在本文研究的整个打浆度范围内，CPAM-APAM沉积在纤维表面可以显著提高纤维的物理强度性能，特别是在打浆度为40oSR时。此外，即使经过纸浆精炼，物理强度的提高也能保持不变。
The layer-by-layer deposition technique was adopted in this paper to improve the physical strength properties of alkaline peroxide mechanical pulp (APMP). The cationic starch (CS), anionic polyacryamide (APAM) and cationic polyacryamide (CPAM) were chosen and used to build-up polyelectrolyte multilayers on surface of APMP fibers. The improvements of physical strength of pulp through adsorption of different polyelectrolyte onto fibers were discussed and compared. The results showed that when the APMP fibers were treated with CPAM, the breaking length and burst index were 53% and 83% respectively, higher than that of untreated pulp. The optimal treatment conditions are 60 mgCPAM/g pulp, 1.5% pulp concentration and 9min treatment time. The pulp deposited by CPAM-APAM polyelectrolyte multilayer gave a highest physical strength compared with pulp with other multilayer deposition such as CS-APAM. At the whole beating degree range investigated in this paper, the CPAM-APAM deposition on fiber surface can improve the physical strength properties significantly, especially when the beating degree is at 40oSR. In addition, the improvement of physical strength can be remained even after pulp refining.
影响因子：
2.5
作者：
Yipeng Sun;X. Zhang;Changqing Sun;Boqun Wang;Jia-cong Shen
通讯作者：
Yipeng Sun;X. Zhang;Changqing Sun;Boqun Wang;Jia-cong Shen
影响因子：
9.9
作者：
S. Notley;Malin Eriksson;L. Wågberg
通讯作者：
S. Notley;Malin Eriksson;L. Wågberg
影响因子：
1.2
作者：
Eriksson, M;Pettersson, G;Wågberg, L
通讯作者：
Wågberg, L