Flocculation of alkyl ketene dimer and calcium carbonate on paper sizing and filling performance

IF 0.9 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Nordic Pulp & Paper Research Journal Pub Date : 2023-03-07 DOI:10.1515/npprj-2022-0079

Lihong Zhao, Xun Ke, Zhiwei Wang, Min Wu, Junrong Li, L. Qian, Junli Ren

{"title":"Flocculation of alkyl ketene dimer and calcium carbonate on paper sizing and filling performance","authors":"Lihong Zhao, Xun Ke, Zhiwei Wang, Min Wu, Junrong Li, L. Qian, Junli Ren","doi":"10.1515/npprj-2022-0079","DOIUrl":null,"url":null,"abstract":"Abstract In order to solve the conflict between precipitated calcium carbonate (PCC) filling and alkyl ketene dimer (AKD) sizing for paper, this study explored two new flocculation methods: AKD and PCC were flocculated separately in the process ((A)(P)F), while the two pre-flocs from AKD and PCC were blended in the process ((AP)F). The result showed that increasing the dosage of the flocculant cationic starch (CS) resulted in a significant growth in the median size of PCC flocs and reduction in the specific surface area, turbidity, the negative charge of Zeta potential, as well as the adsorption capacity of PCC to AKD. Consequently the sizing degree and filler retention rate of the handsheets rose markedly. With 125 mg g−1 of CS, compared with the conventional process, the filler retention rate for (A)(P)F grew up to 86.16%; the Cobb60 values for both (AP)F and (A)(P)F declined, and the contact angle (CA) increased to 120.65° and 127.65° respectively. At the same time, the filler bondability factor (FBF) were increased due to the intensified bonding force between fibers, and resultantly the comparable mechanical properties of papersheets with a high level of filler retention was obtained from (AP)F and (A)(P)F flocculation processes.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"38 1","pages":"381 - 387"},"PeriodicalIF":0.9000,"publicationDate":"2023-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nordic Pulp & Paper Research Journal","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1515/npprj-2022-0079","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}

引用次数: 0

Abstract

Abstract In order to solve the conflict between precipitated calcium carbonate (PCC) filling and alkyl ketene dimer (AKD) sizing for paper, this study explored two new flocculation methods: AKD and PCC were flocculated separately in the process ((A)(P)F), while the two pre-flocs from AKD and PCC were blended in the process ((AP)F). The result showed that increasing the dosage of the flocculant cationic starch (CS) resulted in a significant growth in the median size of PCC flocs and reduction in the specific surface area, turbidity, the negative charge of Zeta potential, as well as the adsorption capacity of PCC to AKD. Consequently the sizing degree and filler retention rate of the handsheets rose markedly. With 125 mg g−1 of CS, compared with the conventional process, the filler retention rate for (A)(P)F grew up to 86.16%; the Cobb60 values for both (AP)F and (A)(P)F declined, and the contact angle (CA) increased to 120.65° and 127.65° respectively. At the same time, the filler bondability factor (FBF) were increased due to the intensified bonding force between fibers, and resultantly the comparable mechanical properties of papersheets with a high level of filler retention was obtained from (AP)F and (A)(P)F flocculation processes.

查看原文本刊更多论文

烷基烯酮二聚体和碳酸钙对纸张施胶和填充性能的絮凝作用

摘要为了解决沉淀碳酸钙（PCC）填料与烷基烯酮二聚体（AKD）施胶之间的矛盾，本研究探索了两种新的絮凝方法：在工艺（（A）（P）F）中分别絮凝AKD和PCC，而在工艺（AP）F）中将AKD和沉淀碳酸钙的两种预絮凝物混合。结果表明，随着絮凝剂阳离子淀粉（CS）用量的增加，PCC絮凝体的中值尺寸显著增大，比表面积、浊度、Zeta电位负电荷以及PCC对AKD的吸附能力显著降低。因此，手抄纸的施胶度和填料保留率显著提高。使用125 mg g−1的CS，与传统工艺相比，（A）（P）F的填料保留率提高到86.16%；（AP）F和（A）（P）F的Cob60值均下降，接触角（CA）分别增加到120.65°和127.65°。同时，由于纤维之间的结合力增强，填料结合力因子（FBF）增加，因此（AP）F和（a）（P）F絮凝工艺获得了具有较高填料保留率的纸张的可比机械性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nordic Pulp & Paper Research Journal 工程技术-材料科学：纸与木材

CiteScore

2.50

自引率

16.70%

发文量

审稿时长

1 months

期刊介绍： Nordic Pulp & Paper Research Journal (NPPRJ) is a peer-reviewed, international scientific journal covering to-date science and technology research in the areas of wood-based biomass: Pulp and paper: products and processes Wood constituents: characterization and nanotechnologies Bio-refining, recovery and energy issues Utilization of side-streams from pulping processes Novel fibre-based, sustainable and smart materials. The editors and the publisher are committed to high quality standards and rapid handling of the peer review and publication processes. Topics Cutting-edge topics such as, but not limited to, the following: Biorefining, energy issues Wood fibre characterization and nanotechnology Side-streams and new products from wood pulping processes Mechanical pulping Chemical pulping, recovery and bleaching Paper technology Paper chemistry and physics Coating Paper-ink-interactions Recycling Environmental issues.