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Effects of phosphogypsum whiskers modification with calcium stearate and their impacts on properties of bleached softwood paper sheets, TAPPI Journal September 2021

ABSTRACT: By combining the structural properties and characteristics of phosphogypsum whiskers, a preliminary study on the modification of phosphogypsum whiskers and their application in papermaking was carried out. The effects of reaction temperature, reaction time, and reaction concentration on the solubility and retention of modified phosphogypsum whiskers and the effects of phosphogypsum whiskers on the physical properties of paper under different modified conditions were explored. The research results show that, after the phosphogypsum whiskers are modified with calcium stearate, a coating layer will be formed on the surface of the whiskers, which effectively reduces the solubility of the phosphogypsum whiskers. The best modification conditions are: the amount of calcium stearate relative to the absolute dry mass of the phosphogypsum whisker is 2.00%; the modification time is 30 min, and the modification temperature is 60°C. The use of modified phosphogypsum whiskers for paper filling will slightly reduce the whiteness, folding resistance, burst resistance, and tensile strength of the paper, but the tearing degree and retention of the filler will be increased to some extent.

Journal articles
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Make it Personal. Make it Matter. Make it SAFE., Paper360º September/October 2021

Make it Personal. Make it Matter. Make it SAFE., Paper360º September/October 2021

Journal articles
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On-line analyzer to monitor reduction efficiency inreal time, Paper360º September/October 2021

On-line analyzer to monitor reduction efficiency inreal time, Paper360º September/October 2021

Journal articles
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Industry 4.0: New Lexicon, No Limits, Paper360º September/October 2021

Industry 4.0: New Lexicon, No Limits, Paper360º September/October 2021

Journal articles
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Digitalization Rolls Out at DS Smith Mills Across Europe, Paper360º September/October 2021

Digitalization Rolls Out at DS Smith Mills Across Europe, Paper360º September/October 2021

Journal articles
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ROI is the Secret Sauce for Sustainable Digital Transformation, Paper360º September/October 2021

ROI is the Secret Sauce for Sustainable Digital Transformation, Paper360º September/October 2021

Journal articles
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How to Build a Maintenance 4.0 Roadmap for the Pulp and Paper Industry, Paper360º September/October 2021

How to Build a Maintenance 4.0 Roadmap for the Pulp and Paper Industry, Paper360º September/October 2021

Journal articles
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The Paper360° Top 75, Paper360º September/October 2021

The Paper360° Top 75, Paper360º September/October 2021

Journal articles
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Project Wolfpack Springs to Life, Paper360º September/October 2021

Project Wolfpack Springs to Life, Paper360º September/October 2021

Journal articles
Magazine articles
Biomass-Derived Polymers Require Reliable Batch Processing t

Biomass-Derived Polymers Require Reliable Batch Processing to Spec, Paper360º September/October 2021

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