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Application of Spray Coating in the Fabrication of Free Standing Nanocellulose Films and Barrier Coating on the Paper Substrates
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Researchers developed cellulose acetate microspheres as a sustainable alternative to synthetic microplastic beads in cosmetics, producing spherical particles with high surface smoothness through polymer thermal phase separation that provide a smooth sensory texture while being biodegradable and environmentally safe.
Spray coating is a novel concept for fabricating free-standing film and producing barrier coating on paper substrates. The spraying gives comparable efficacy with vacuum filtration in terms of operation time, film quality, and process intensification approach. The smooth films created by spraying nanocellulose onto the polished impermeable surface could serve as a platform for a variety of sustainable functional devices. Finally, the application of spray-coating barriers and nanocellulose films on paper substrates is the focus of the spray-coating concept designed to create smooth nanocellulose films. One of the most important factors that affect the performance of different cellulose-based functional materials is the smoothness of nanocellulose film coated with sprays in the production of flexible and printed electronics. The uses of nanocellulose film as a high-performance barrier material and the possible replacement of synthetic plastic packaging are expanded by spray coatings. The process of creating a nanocellulose film using spray coating takes less than a minute. Compared to vacuum filtering, this method offers excellent speed potential for nanocellulose films. The wet layer of spray coating takes more than 24 hours to dry in a controlled laboratory environment, using air drying. Future research projects will improve the drying process of wet films. The film spray process serves as a proof of concept, and the quality of the film produced by this method contrasts with vacuum filtration. Studying spray coating wet film drying outside the scope of this research is not part of the scope of this study, and additional research is needed in this area. The shiny film that is created by spraying nanocellulose on the impermeable polished surface can serve as a platform for various sustainable functional devices.
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Researchers developed biodegradable cellulose acetate microspheres as a sustainable replacement for synthetic microplastic particles in cosmetics, producing smooth spherical particles via thermal phase separation that deliver comparable sensory performance while avoiding persistent plastic pollution in the environment.
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Researchers developed a method for producing cellulose microspheres of controlled size as a biodegradable alternative to plastic microbeads used in cosmetics. Cellulose microspheres performed comparably to conventional plastic microbeads in cosmetic formulations while being biodegradable, offering a viable substitute to reduce microplastic pollution from personal care products.
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Researchers developed a scalable, surfactant-free emulsion method for producing microbeads from non-derivatized biomass such as cellulose, offering a biodegradable alternative to plastic microbeads still used in personal care and consumer products despite national and international regulations.
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