THE EFFECT OF AKD ADSORBED ONTO CAUSTICIZED CALCIUM CARBONATE ON AKD SIZING EFFICIENCY
Causticized calcium carbonate(CCC)is used as a kind of paper filler instead of precipitated calcium carbonate(PCC),which comes from the green liquor causticizing process of alkali recovery system.There are many advantages to use CCC as paper filler,which not only saves resource and energy,but also can prevent secondary pollution and reduce the production cost of paper.Unfortunately,the application scope and dosage of CCC have been limited by low sizing efficiency of CCC-filled paper.In this research,the adsorption between CCC filler and alkyl ketene dimer(AKD)emulsion was studied,and the effective method to enhance AKD sizing efficiency of CCC-filled paper was found.It was proposed that the AKD sizing efficiency reduction of CCC-filled paper was resulted from the adsorption of AKD onto CCC,and the electrostatic interaction between AKD and CCC was the main reason for the adsorption,while physical adsorption played a role as assistance.It was found that controlling the electrostatic adsorption of AKD onto CCC was an effective method to improve the AKD sizing efficiency of CCC-filled paper.
Miao Dang Jian Wang
Light Industry Institute of Science and Engineering,Shaanxi University of Science & Technology Xian Light Industry Institute of Science and Engineering,Shaanxi University of Science & Technology Xian
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-4
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）