Preparation and Properties of Tricalcium Silicate-MFC/GCC Composite Filler
In our current study,the hydration reaction of tricalcium silicate was introduced into the preparation process of composite fillers,the reaction type inorganic fillers that can crosslink with cellulose fibers were prepared with the use of a planetary ball mill,and the structure and the properties of fillers and the paper filled with the fillers were characterized.The results showed that tricalcium silicate and microfibrillated cellulose(MFC)could form a two-component tricalcium silicate MFC composite with a positive potential value during the grinding process,then adsorb ground calcium carbonate(GCC)with a negative potential value,and finally form three-component tricalcium silicate MFC/GCC composite filler containing hydroxyl groups.The retention rate of composite fillers increased by 17%compared to traditional GCC fillers;the fracture length of the paper filled with the three-component composite filler increased by about 20%compared to that filled with GCC/MFC composite filler when the grinding time of the filler reached 20 hours.
万方数据
维普
