We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Synthesis of Water-Dispersible Poly(dimethylsiloxane) and Its Potential Application in the Paper Coating Industry as an Alternative for PFAS-Coated Paper and Single-Use Plastics
Summary
Researchers synthesized water-dispersible polydimethylsiloxane (PDMS) and evaluated its potential as a delivery agent and surface-treatment compound in cosmetic and biomedical applications. The water-dispersible PDMS formulations showed stable performance and could enable silicone-based functionality in aqueous formulations without conventional solvents.
Polyethylene-, polyvinylidene chloride-, and per- and polyfluoroalkyl substance-coated paper generate microplastics or fluorochemicals in the environment. Here, we report an approach for the development of oil-resistant papers using an environmentally friendly, fluorine-free, water-dispersible poly(dimethylsiloxane) (PDMS) coating on kraft paper. Carboxylic-functionalized PDMS (PDMS-COOH) was synthesized and subsequently neutralized with ammonium bicarbonate to obtain a waterborne emulsion, which was then coated onto kraft paper. The water resistance of the coated paper was determined via Cobb60 measurements. The Cobb60 value was reduced to 2.70 ± 0.14 g/m2 as compared to 87.6 ± 5.1 g/m2 for uncoated paper, suggesting a remarkable improvement in water resistance. Similarly, oil resistance was found to be 12/12 on the kit test scale versus 0/12 for uncoated paper. In addition, the coated paper retained 70-90% of its inherent mechanical properties, and more importantly, the coated paper was recycled via pulp recovery using a standard protocol with a 91.1% yield.
Sign in to start a discussion.
More Papers Like This
New alternatives to single‐use plastics: Starch and chitosan‐graft‐polydimethylsiloxane‐coated paper for water‐ and oil‐resistant applications
Researchers developed a fluorine-free, bio-based paper coating using starch and chitosan grafted with polydimethylsiloxane, achieving water- and oil-resistance comparable to conventional fluorochemical coatings while remaining biodegradable and compostable.
Oil‐ and water‐resistant paper substrate using blends of chitosan‐graft‐polydimethylsiloxane and poly(vinyl alcohol)
Researchers developed a plastic- and fluorine-free coating approach for oil and water repellent paper substrates using blends of poly(vinyl alcohol) and chitosan-graft-polydimethylsiloxane copolymer, offering an economical alternative to conventional coatings that contribute to microplastic contamination.
Chitosan–Graft–Poly(dimethylsiloxane)/Zein Coatings for the Fabrication of Environmentally Friendly Oil- and Water-Resistant Paper
Researchers developed a sustainable paper coating using chitosan-graft-poly(dimethylsiloxane) and zein biopolymers that provides oil and water resistance, offering a biodegradable alternative to conventional synthetic polymer coatings that contribute to microplastic pollution. The approach demonstrates a practical strategy for reducing plastic waste in paper packaging applications.
Bio-Based Monoepoxy-TerminatedPolysiloxane-ModifiedCoating for Hydrophobic and Oil-Resistant Paper
Researchers developed a bio-based coating material by grafting monoepoxy-terminated polysiloxane onto chitosan and cellulose nanofibers via a one-pot method, producing films with tunable hydrophobic and oil-resistant properties for sustainable packaging paper as an alternative to nondegradable plastic coatings.
Degradable Polymeric Waxes for Paper Coating Applications
Scientists created degradable wax-like polymers that can coat paper packaging to make it water- and oil-resistant, offering an alternative to traditional plastic coatings. Unlike conventional plastic-coated paper, these coated papers can be broken down and recycled through standard paper repulping. This kind of innovation could help reduce the microplastic pollution that comes from plastic-coated packaging materials breaking down in the environment.