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Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Published on: August 28, 2015

Recyclable and Biodegradable Paper Coating with Functionalized PLA and PBAT.

Syeda Shamila Hamdani¹, Hazem M Elkholy¹, Manal O Alghaysh¹

¹School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, Michigan 48824-1223, United States.

|March 31, 2025

Summary

This summary is machine-generated.

New functionalized polyester coatings offer recyclable and compostable paper solutions. This innovation addresses packaging waste by creating eco-friendly, PFAS-free coated paper for a circular economy.

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Area of Science:

Materials Science
Polymer Chemistry
Sustainable Packaging

Background:

Conventional polyester-coated paper is widely used for packaging but poses significant environmental challenges due to its non-recyclable nature.
The persistence of non-biodegradable materials in packaging contributes to landfill waste and microplastic pollution.

Purpose of the Study:

To develop novel, recyclable, and industrially compostable paper coating materials.
To create a sustainable alternative to conventional non-recyclable polyester coatings for packaging applications.
To ensure the developed coatings are free from harmful substances like PFAS and persistent microplastics.

Main Methods:

Synthesis of carboxylic acid-functionalized polylactic acid (CPLA) and poly(butylene adipate-co-terephthalate) (CPBAT).
Application of CPLA, or CPLA/CPBAT blends, as emulsified coatings onto paper.
Comprehensive testing of coated paper for barrier properties, repellency, sealing, mechanical strength, repulpability, recyclability, and compostability.

Main Results:

The functionalized polyester-coated papers demonstrated excellent water and oil repellency, gas and moisture barrier properties, and sealing capabilities.
Certified testing validated the repulpability and recyclability of the coated papers.
Industrial compostability of the coated papers was confirmed, and they were found to be free of PFAS and persistent microplastics.

Conclusions:

Functionalized polyester blends provide a viable and sustainable solution for paper coatings.
The developed coated paper meets performance requirements for packaging while aligning with circular economy principles.
This innovation offers an environmentally responsible alternative to conventional coated papers, reducing plastic waste and promoting biodegradability.