Cellulose-lignin nanocomposite barrier coating for sustainable packaging
Innovative cellulose-lignin nanocomposite coating utilizes biopolymers for enhanced barrier properties in beverage packaging. The sprayable, biodegradable coating offers improved resistance to water vapor and oxygen, enhancing sustainability in packaging solutions.
Overview
The cellulose-lignin nanocomposite barrier coating represents a groundbreaking advancement in sustainable packaging solutions. By leveraging the natural properties of cellulose and lignin, this technology provides an eco-friendly alternative to traditional barrier coatings. The coating is designed to effectively protect against water vapor and oxygen, making it ideal for beverage packaging applications. The sprayable formulation ensures ease of application, while its biodegradability aligns with increasing environmental standards.
Technical specifications
Key features:
- Utilizes nanocellulose, synthesized from industry bleached pulp, to form dense coating networks with low permeability.
- Incorporates lignin nanoparticles (LNPs) for enhanced water resistance and densification.
- Formulations can be optimized by varying the concentration ratios of nanocellulose and LNPs.
- Demonstrates improved barrier performance against water vapor and oxygen due to the hydrophobicity and high aspect ratio of components.
- Validated through rigorous testing, including OTR, WVTR, and biodegradability assessments per ASTM standards.
Technology readiness level
The development is currently at Technology Readiness Level 5, indicating that the technology has been validated in a laboratory environment. Future plans include further testing and optimization in industry-relevant settings to ensure readiness for commercial deployment.
About University of Tennessee, Knoxville
UT offers a partnership model that reduces risk, accelerates time-to-value, and supports long-term growth strategies for industry—providing an attractive platform for companies seeking to formalize collaboration and establish a long-term presence in the East Tennessee region. By aligning institutional investment with regional and national priorities, UT provides a stable and effective platform for industry collaboration, technology deployment, and sustained economic impact.
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