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The use of hollow sphere pigments as strength additives in paper and paperboard coatings—Part 2: Optimization in paperboard formulations for opacity and strength, TAPPI Journal November 2020

ABSTRACT: This report aims to summarize the efforts in testing the properties of coatings for paperboard utilizing hollow sphere pigments (HSPs). HSPs are known to effectively scatter light and replace titanium dioxide (TiO2) in architectural coating formulations. The effect of the particle size and void fraction was evaluated, along with many coating parameters, including level of addition, binder chemistry, and blends of two HSPs. The small HSPs that have optimized voids for scattering light showed equivalent strength to the TiO2-containing control. The strength data was surprising, particularly the improvement in strength for coatings containing large particle size HSPs. Because of this increase in strength, four parts of binder could be removed, which allowed for higher brightness while not compromising other properties, including hot melt glueability. These trends held true using different binder chemistries (styrene acrylic, vinyl acrylic, and styrene butadiene). Upon refining the formulations further, blends of two HSPs showed further benefit.

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SetPoint: Wind in Our Sails, Paper360º November/December 2020

SetPoint: Wind in Our Sails, Paper360º November/December 2020

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Over the Wire, Paper360º November/December 2020

Over the Wire, Paper360º November/December 2020

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Communicate, Collaborate: Steve Voorhees on Impactful Leadership, Paper360º November/December 2020

Communicate, Collaborate: Steve Voorhees on Impactful Leadership, Paper360º November/December 2020

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Leading Ahead: ´People Power’ and Innovation, Paper360º November/December 2020

Leading Ahead: ´People Power’ and Innovation, Paper360º November/December 2020

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Can’t Be On-Site? Try Virtual PM Audits, Paper360º November/December 2020

Can’t Be On-Site? Try Virtual PM Audits, Paper360º November/December 2020

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Anthony Pratt is RISI’s NA CEO of the Year, Paper360º November/December 2020

Anthony Pratt is RISI’s NA CEO of the Year, Paper360º November/December 2020

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RMM Beliefs: Part I, Paper360º November/December 2020

RMM Beliefs: Part I, Paper360º November/December 2020

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Can I Tie My RM Programs to Energy, Waste Stream, and Productivity?, Paper360º November/December 2020

Can I Tie My RM Programs to Energy, Waste Stream, and Productivity?, Paper360º November/December 2020

Journal articles
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China Bracing for OCC, Plastics Ban, Paper360º November/December 2020

China Bracing for OCC, Plastics Ban, Paper360º November/December 2020

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