Sterilizable and Reusable Ultraviolet-Resistant Graphene-Polyurethane Elastomer Composites

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

Patent Information: