We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Recyclable and Biodegradable Paper Coating with Functionalized PLA and PBAT
AI summary Read the abstract
Researchers developed recyclable and industrially compostable paper coatings using functionalized polylactic acid and poly(butylene adipate-co-terephthalate) blends as alternatives to conventional polyester coatings. The coated paper demonstrated effective water and oil repellency, barrier properties, and mechanical performance while being fully repulpable and recyclable. Notably, the coating is free of PFAS and persistent microplastics, offering a circular economy solution for food packaging.
Conventional nonfunctional polyester-coated paper is suitable for packaging, but this coated paper is nonrecyclable. Herein, we report paper coating materials recyclable and industrially compostable using functionalized polyester blends. First, carboxylic acid-functionalized polylactic acid (CPLA) and carboxylic acid-functionalized poly(butylene adipate-co-terephthalate) (CPBAT) were synthesized. CPLA, either alone or as a blend of CPLA and CPBAT, was emulsified and then applied for paper coating. The coated paper was tested to evaluate its water and oil repellency, gas and moisture barrier, sealing, and mechanical properties index. The coated paper's repulpability and recyclability were fully validated by certified methods. The compostability of the CPBAT- and CPLA-coated papers was also confirmed. This newly coated paper is PFAS- and persistent microplastics-free, and its recyclable nature fits into a circular economy approach.
More Papers Like This
Degradable Polymeric Waxes for Paper Coating Applications
AI summary Read the abstract
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.
Chitosan–Graft–Poly(dimethylsiloxane)/Zein Coatings for the Fabrication of Environmentally Friendly Oil- and Water-Resistant Paper
AI summary Read the abstract
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.
Fabrication of oil‐ and water‐resistant paper without creating microplastics on disposal
AI summary Read the abstract
Researchers developed a plastic-free, biodegradable paper coating made from chitosan and sunflower oil that provides oil and water resistance. Unlike conventional coatings, this material does not shed microplastics when disposed of, offering a promising sustainable alternative for food packaging.
Characteristics of laser printed waste paper fibers filled polybutylene adipate terephthalate (PBAT) based composite films
AI summary Read the abstract
Researchers incorporated laser-printed waste paper fibers into PBAT (a biodegradable thermoplastic) composite films, achieving cost reduction while improving mechanical properties, and exploring this as a higher-value use for laser-printed paper waste that otherwise contributes to microplastic pollution.
High Barrier Sustainable Paper Coating Based on Engineered Polysaccharides and Natural Rubber
AI summary Read the abstract
Researchers developed a paper-based food packaging coating using engineered polysaccharides and natural rubber that provides barrier performance approaching that of plastic films while being biodegradable and avoiding microplastic formation. The coating maintained oxygen and moisture barrier properties under stress conditions relevant to food shelf life.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.