Engineered porous calcium silicate as paper filler: effect of filler morphology on paper properties
Source abstract
Abstract
Abstract Developing engineered filler with special morphology to increase filler content and deliver paper desirable properties has been deserved much concern. In this work, two engineered calcium silicate fillers with different morphology, namely fly ash based calcium silicate (FACS), fibrous calcium silicate (FCS) were adopted to investigate the effect of filler morphology on paper properties, and natural wollastonite was used for comparison. It is found that FACS exhibits a wrinkled, porous surface while FCS reveals spherical agglomerates composed of needle-like particles. Physical tests demonstrated that in comparison with natural wollastonite with discrete shape, the aggregated porous structure of FACS and FCS showed noticeable improvement in bulk and opacity due to their high specific surface area (112 m2/g v.s 29 m2/g). At around 40 % filler content, the bulk of FACS and FCS filled handsheets increased 59.6 % and 43.8 %, respectively. The findings suggested that the engineered porous calcium silicate can be potentially used as paper filler in light weighted paper.
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Research context
OpenAlex topics: Advanced Cellulose Research Studies · Aerogels and thermal insulation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Demonstration Center for Experimental Light Chemistry Engineering Education (Shaanxi University of Science & Technology) , Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development , Key Laboratory of Paper based Functional Materials of China National Light Industry , College of Bioresources Chemical and Materials Engineering , Shaanxi University of Science & Technology , Xi’an 710021 , China
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control , Nanning 530004 , China
Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education/Shandong Province , Qilu University of Technology , Jinan 250353 , China
Funding
National Natural Science Foundation of China · Ministry of Education of the People's Republic of China · Shaanxi University of Science and Technology
References (33)
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