Graphene-pet composite packaging material for enhanced oxygen and water vapor barrier performance

Overview

Graphene Integrations offers a graphene-PET composite packaging material intended to outperform conventional plastic films in barrier performance. Graphene is produced at industrial scale at a direct cost of less than $100 per square meter, supporting large-area deployment. The resulting composite is described as biocompatible, food-safe, hydrophobic, and chemically inert, targeting next-generation food packaging and other barrier-sensitive applications.

Technical specifications

• Barrier performance: Oxygen transfer rate of 4.6 cm3/m2/day versus 13.9 for control; water vapor transfer rate of 0.0178 g/m2/day versus 2.18 for control
• Optical transparency: 97.7% with a single graphene layer; 87.2% with five layers
• Material profile: Graphene thickness of 0.34 nm and weight of 0.77 mg/m2, enabling ultra-thin coatings
• Sustainability: Inputs and product are renewable, recyclable, and degradable
• Substrate compatibility: Demonstrated capability to transfer graphene onto PET substrates with controlled adhesion
• Competitive positioning: Performance compares favorably to PP, LDPE, PET, PS, PC, and other biocomposite synthetic packaging films

Technology readiness level

The core graphene production technology has been validated at industrial scale with demonstrated cost targets and consistent quality. Initial barrier performance metrics have been measured and benchmarked against standard plastic films. The next stage of validation requires defining target specifications for water vapor transfer rate, cost, oxygen transfer rate, adhesion, and flexibility, followed by customized graphene recipe design, adhesion optimization, and downstream characterization using techniques such as Raman and SEM imaging.