Interaction between PCC Filler and Cellulosic Fiber in Fiber/Filler Co-refining System

作     者：Sheng Qiang Shunxi Song Peiyao Wang Yujie Shi Linhao Li Haitang Liu Sheng Qiang;Shunxi Song;Peiyao Wang;Yujie Shi;Linhao Li;Haitang Liu

作者机构：College of Bioresources Chemical and Materials EngineeringNational Demonstration Center for Experimental Light Chemistry Engineering Education(Shaanxi University of Science&Technology)Shaanxi University of Science and TechnologyXi'anShaanxi Province710021China Tianjin Key Laboratory of Pulp&PaperTianjin University of Science&TechnologyTianjin300457China 

出 版 物：《Paper And Biomaterials》 (造纸与生物质材料（英文）)

年 卷 期：2021年第6卷第4期

页      面：30-37页

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was financially supported by Innovation Capability Support Program of Shaanxi(2020KJXX082) the Foundation(202005)of Tianjin Key Laboratory of Pulp&Paper(Tianjin University of Science&Technology) 

主　　题：cellulosic fiber mineral filler filler composite paper strength optical properties 

摘      要：Mineral fillers are important for conserving raw fiber materials and reducing production costs in the paper ***,the increase in filler content will inevitably result in strength reduction,which limits the adding amount of filler in paper *** this study,we designed a cellulose fiber/filler co-refining approach to improve the strength and optical properties of paper;moreover,the synergistic interaction between fibers and precipitated calcium carbonate(PCC)fillers in the co-refining process was *** of fiber separation and PCC particle size analysis showed that,compared with conventional refining,the content of fines increased,whereas the PCC particle size *** importantly,composites were formed between the PCC and fines,which promoted strength improvement of *** tests show that the tensile index of paper with 15%PCC content increased by 22%compared with that of the paper filled by conventional method,whereas the brightness and opacity of paper improved by fiber/filler co-refining for a specified filler *** findings provide a basis for the further development of co-refining filling technology.