Hydrophobic ultrasmall nanoparticles for enhanced polyolefin membrane protection
Innovative nanoparticles enhance the hydrophobicity of polyolefin membranes, improving dust and moisture resistance. This solution offers a simple spray application method for creating durable, water-repellent surfaces, extending membrane lifespan.
Overview
This innovative technology leverages hydrophobic ultrasmall nanoparticles to significantly enhance the surface properties of polyolefin membranes such as polyethylene and polypropylene. By applying these nanoparticles through a straightforward spray coating process during manufacturing, the membranes achieve superior dust and moisture resistance, effectively extending their lifespan. The nanoparticles are specially designed with coupling groups that facilitate interaction with polyolefins or allow for integration directly into the polymer chain, creating a durable and water-repellent surface.
Technical specifications
Key features:
- Composed of inorganic, non-toxic materials, ensuring safety and environmental compatibility.
- Tunable surface topography for optimal surface coverage and hydrophobicity.
- Designed for spray application or in situ functionalization during manufacturing.
- Enhanced durability and functionality for polyolefin membranes, reducing maintenance needs.
Technology readiness level
This technology is currently at Technology Readiness Level 2, indicating that concept and application have been formulated. Future plans include further validation through partnerships to provide coating tests and collaborate on new formulations, aiming to demonstrate a dust-repellent membrane capable of maintaining a clear appearance for at least one year without cleaning.
About São Paulo State University
São Paulo State University (UNESP) is a comprehensive public research university with a statewide, multi-campus footprint across São Paulo and a strong applied-research culture. Co-located clinical and veterinary teaching hospitals, field stations, and specialized labs enable translational work and access to real-world testbeds. Its campuses sit near Brazil’s highest-density industrial corridor, connecting partners to suppliers, technology parks, and talent pipelines across metropolitan and interior regions. Research is supported by competitive funding from FAPESP, CNPq, CAPES, and FINEP, alongside industry-sponsored contracts. A dedicated innovation and technology transfer office provides IP management, licensing, startup support, and streamlined pathways for contract research and collaboration.
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