Lightweight polyethylene furanoate (PEF) foams for thermoplastic applications
Innovative bio-based polyethylene furanoate (PEF) foams offer excellent gas barrier properties and mechanical strength for thermoplastic injection molding, leveraging cost-effective hemicellulose-derived FDCA for sustainable production.
Overview
Polyethylene furanoate (PEF) foams are an innovative solution targeting the thermoplastic industry, particularly for injection molding applications. Synthesized from hemicellulose-derived 2,5-furandicarboxylic acid (FDCA), PEF offers a sustainable alternative to traditional petroleum-based resins. Its unique properties include excellent gas barrier capabilities and mechanical strength, making it suitable for a variety of plastics, films, and coatings applications. This bio-based polyester resin significantly reduces greenhouse gas emissions, aligning with sustainability goals.
Technical specifications
PEF is synthesized through a process involving melt polymerization of dimethyl furan-2,5-dicarboxylate with ethylene glycol, followed by solid state polymerization to achieve desired molecular weight. Key features include:
- Gas Barrier Properties: High-performance barrier against gases, suitable for packaging applications.
- Mechanical Strength: Robust mechanical properties suitable for durable applications.
- Sustainability: Derived from non-edible hemicellulose, reducing reliance on food-supply-related feedstocks and offering a cost advantage.
The development process includes the use of foaming agents to produce microcellular polymer foams, with investigations into optimal foaming agent, temperature, and pressure settings to achieve desired density and thermomechanical properties.
Technology readiness level
Currently at TRL 3, this technology has been validated at the experimental proof of concept stage. Future validation efforts include optimizing polymerization and foaming processes to meet industry standards and application-specific requirements.
About KSE, Inc.
KSE, Inc. is a research and technology development firm that specializes in catalytic conversion processes for the chemical industry. Founded in 1977, the company focuses on advancing sustainable, bio-based innovations, including the transformation of biomass, waste streams, and captured CO2 into high-value building block chemicals. Operating from a 11,000-square-foot purpose-built facility in Sunderland, Massachusetts, KSE utilizes proprietary technologies such as integrated catalytic and reactive distillation (iCARD) to develop alternatives to traditional petroleum-based products. Their technical capabilities span chemical reaction engineering, separations, and forensic analysis, supported by pilot-scale manufacturing and analytical laboratory infrastructure. The firm holds numerous patents in heterogeneous catalyst design and application, with historical success in securing over 70 Small Business Innovation Research (SBIR) programs to advance these technologies.
The company serves as a partner to industries seeking to reduce carbon intensity and environmental impact by replacing legacy petroleum feedstocks with renewable, bio-based materials. Their solutions address key market needs in sectors such as plastics, polyesters, coatings, and adhesives, offering products like sustainable FDCA and acrylic acid derived from waste glycerin. By leveraging renewable feedstocks and circular carbon strategies, KSE helps clients improve process efficiency, reduce costs, and enhance the thermo-mechanical and environmental performance of end materials. Their expertise is utilized in research development, process demonstration, and market testing, providing a bridge from bench-scale innovation to commercial feasibility for chemical process industries.
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