Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras

Aqueous Composition for Durable and Extremely Efficient Water Repelling Superhydrophobic Materials at Ambient Condition Thereof

Categories for this Invention

Categories: Chemistry & Chemical Analysis | Advance Material & Manufacturing

Industry: Material Science, Surface Engineering

Applications: Paints, Pigments, Paper, Varnish, Textiles, and Construction Materials.

Market: The Global Superhydrophobic Coatings Market size was estimated at $ 19 M in 2021 and will reach around $ 120 M by 2030, poised to grow at 25% CAGR from 2021 to 2030.

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Problem Statement

  • Traditional superhydrophobic coating method use harmful organic solvents & complex process.
  • Current coatings often lack durability and performance under varying conditions.
  • Flexibility & compatibility in diverse substrates are essential for coatings to be widely applicable.
  • Multifunctional property like antimicrobial activity and stability are desired.
  • Versatile coatings capable of addressing various industry needs are crucial.
  • Hence, the instant patent disclosure is in need.

Technology

The instant invention discloses an Aqueous Composition for the Durable and Extremely Efficient Water Repelling Superhydrophobic Materials at Ambient Condition Thereof.

Methods Disclosed:

  • The disclosed methods involve the fabrication of durable & multifunctional superhydrophobic coatings using a water-based approach.
  • This process eliminates the use of harmful organic solvents, making it eco-friendly.
  • The method includes chemical modification and functionalization of hydrophilic materials, e.g., cellulose nanofibers or clay, using silanes.
  • These materials are dispersed in water, mixed with specific functional silanes, and vigorously stirred under room temperature conditions for several hours.
  • This results in formation of superhydrophobic coatings with good water-repelling properties.
  • The coatings can be applied using various methods and are suitable for a wide range of substrates, including both soft & hard surfaces.
  • Additionally, the coatings exhibit robustness against mechanical abrasions, thermal stability, & antimicrobial properties, making them highly versatile for diverse applications.

Key Features / Value Proposition

User perspective:-

  • Simple Water-based Method
  • Durable Superhydrophobic Coatings
  • Versatile Applications
  • Reliable Protection Against Moisture.
  • No Need For Frequent Application

Industrial perspective:-

  • No Organic Solvents Usage.
  • Economically Viable Technology.
  • Sustainable and Eco-friendly Process
  • Meets Industrial Safety & Regulatory Standards

Technology perspective:-

  • Utilization of Silanes in Water-based Processes for Chemical Modification
  • High Contact Angles (>160º)
  • Low Roll-off Angles (<10º)
  • Ensure Excellent Water Repellency
  • Durability Against Mechanical & Chemical Stress
  • Efficient Large-scale Production.

Questions about this Technology?

Contact For Licensing

sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in

Research Lab

Prof. Pradeep T

Department of Chemistry.

Intellectual Property

  • IITM IDF No.: 1600 

  • IP No.: 356023 (Granted)

Technology Readiness Level

TRL- 3

Proof of Concept Stage.

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