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Establishment and Modification on Fractal Model of Imbibition Characteristics of Ground Calcium Carbonate Pigment for Paper Coating
Received:June 07, 2021  
DOI：10.11980/j.issn.0254-508X.2021.12.006
Key Words:ground calcium carbonate  imbibition characteristics  fractal dimension  imbibition model
Fund Project:国家自然科学基金（22078186）；陕西省重点研发计划项目（2020GY-320）。
Author NameAffiliationPostcode
LIU Guodong* College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science and Technology， Xi’an， Shaanxi Province， 710021
National Demonstration Center for Experimental Light Chemistry Engineering Education， Key Lab of Functional Printing and Transport Packaging of China National Light Industry， Shaanxi Provincial Key Lab of Papermaking Technology and Specialty Paper Development， Key Lab of Paper based Functional Materials of China National Light Industry， Xi’an， Shaanxi Province，710021 		710021
WANG Chenxi College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science and Technology， Xi’an， Shaanxi Province， 710021
National Demonstration Center for Experimental Light Chemistry Engineering Education， Key Lab of Functional Printing and Transport Packaging of China National Light Industry， Shaanxi Provincial Key Lab of Papermaking Technology and Specialty Paper Development， Key Lab of Paper based Functional Materials of China National Light Industry， Xi’an， Shaanxi Province，710021 		710021
FU Sijia College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science and Technology， Xi’an， Shaanxi Province， 710021
National Demonstration Center for Experimental Light Chemistry Engineering Education， Key Lab of Functional Printing and Transport Packaging of China National Light Industry， Shaanxi Provincial Key Lab of Papermaking Technology and Specialty Paper Development， Key Lab of Paper based Functional Materials of China National Light Industry， Xi’an， Shaanxi Province，710021 		710021
GAO Xiuan College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science and Technology， Xi’an， Shaanxi Province， 710021
National Demonstration Center for Experimental Light Chemistry Engineering Education， Key Lab of Functional Printing and Transport Packaging of China National Light Industry， Shaanxi Provincial Key Lab of Papermaking Technology and Specialty Paper Development， Key Lab of Paper based Functional Materials of China National Light Industry， Xi’an， Shaanxi Province，710021 		710021
LI Jing College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science and Technology， Xi’an， Shaanxi Province， 710021
National Demonstration Center for Experimental Light Chemistry Engineering Education， Key Lab of Functional Printing and Transport Packaging of China National Light Industry， Shaanxi Provincial Key Lab of Papermaking Technology and Specialty Paper Development， Key Lab of Paper based Functional Materials of China National Light Industry， Xi’an， Shaanxi Province，710021 		710021
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Abstract:The imbibition characteristics of ground calcium carbonate （GCC） pigment were investigated and characterized， and the internal relationship between the imbibition characteristics of GCC pigment and the classical imbibition models （Lucas-Washburn， Bosanquet and inertial models） were analyzed in this study. The fractal characteristics of the GCC pigment were solved through the fractal theory. The fractal imbibition model of GCC pigment was established from two aspects of imbibition dynamics and fractal structure. The imbibition amount correction factor and shape factor were introduced to further modified the fractal model. The modified imbibition fracture model completely matched the imbibition characteristics in the whole process of GCC pigments. Therefore， the established imbibition model provided tool supports to forecast the imbibition characteristics of GCC and to develop pigments with good imbibition characteristics.
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