NU 2022-136

INVENTORS

• Mark Hersam*

• Lidia Kuo

• Benjamin Luijten

• Ana Carolina Mazarin De Moraes

• Shay Goff Wallace

SHORT DESCRIPTION
Development of a graphene-polyurethane elastomer composite that is resistant to UVGI irradiation, enabling the sterilization and reuse of personal protective equipment (PPE).

BACKGROUND
The COVID-19 pandemic highlighted the critical shortage of PPE and the need for materials that can withstand sterilization without degradation. This invention addresses the urgent need for durable, UVGI-resistant elastomeric materials for the effective long-term use and reusability of PPE, aiming to improve sustainability and reduce waste.

ABSTRACT
This technology encompasses the integration of graphene into polyurethane elastomers to create a composite material that is resistant to UVGI sterilization, enhancing the durability and reusability of PPE such as masks and gloves. Employing a scalable and environmentally friendly process for graphene production, this composite demonstrates significant improvements in mechanical properties, including elasticity and toughness, which are maintained even after multiple sterilization cycles.

APPLICATIONS

• PPE including masks and gloves

• Medical equipment

• Textiles

• Reinforcement in cyclic wear, outdoor applications including the automotive industry

ADVANTAGES

• Scalable and sustainable production of graphene/EC powders

• Significant improvement in mechanical properties with low graphene/EC loading

• Enhanced durability and reusability after UVGI sterilization

• Overcomes commercialization barriers for graphene-polymer composites