DataVXAdvanced Sustainable SystemsPaper
journal article·2019-04

Cinnamate‐Functionalized Cellulose Nanocrystals as UV‐Shielding Nanofillers in Sunscreen and Transparent Polymer Films

Zhen Zhang, Boya Zhang, Nathan Grishkewich, Richard Berry, Kam C. Tam

Advanced Sustainable Systems· Volume 3· Issue 4
Publisher page
Source abstract

Abstract

Abstract Sustainable and environmentally friendly UV‐shielding materials offer new opportunities in the formulation of the next generation cosmetic products. Cinnamate‐functionalized cellulose nanocrystals (Cin‐CNCs) prepared by esterifying CNCs with cinnamoyl chloride display strong UV absorption and high visible light transmittance. They are suitable for use as UV‐shielding nanofillers for sunscreen and transparent polymer films. The aqueous Cin‐CNC dispersion is waterborne, alcohol‐free, nonwhitening, waterproof, photo‐stable, and possesses a high sun protection factor (SPF). The SPF of Cin‐CNC aqueous dispersion is more than twice that of a popular commercial sunscreen at similar concentration. The Cin‐CNCs can serve as UV‐shielding and reinforcing nanofillers in hydrophilic and hydrophobic polymer matrices. The polyvinyl alcohol and polystyrene films incorporated with Cin‐CNCs display excellent UV‐shielding capacity and their Young's moduli are significantly enhanced.
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Research context

PolymersNanomaterialsComposites

OpenAlex topics: Advanced Cellulose Research Studies · Nanocomposite Films for Food Packaging · Electrospun Nanofibers in Biomedical Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

SCNU‐TUE Joint Lab of Device Integrated Responsive Materials (DIRM) National Center for International Research on Green Optoelectronics South China Normal University Guangzhou 510006 P. R. China

Department of Chemical Engineering Waterloo Institute for Nanotechnology University of Waterloo Waterloo Ontario N2L 3G1 Canada

CelluForce Inc. 625 Président‐Kennedy Ave Montreal Quebec H3A 1K2 Canada

Funding

Canada Foundation for Innovation · Natural Sciences and Engineering Research Council of Canada · National Natural Science Foundation of China · Guangdong Province Introduction of Innovative R&D Team · Ministry of Education of the People's Republic of China

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