Method for manufacturing polymer-cellulose whisker composites

An environmentally friendly process synthesizes cellulose whiskers from cotton waste, enhancing their properties for use in fuel cell membranes through alkaline treatment and acid hydrolysis, achieving high yields and improved performance in proton-exchange membranes.

JP2026524570APending Publication Date: 2026-07-23DEPARTMENT OF SCIENCE AND TECHNOLOGY INDUSTRIAL TECHNOLOGY DEVELOPMENT INSTITUTE (DOST ITDI)
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
DEPARTMENT OF SCIENCE AND TECHNOLOGY INDUSTRIAL TECHNOLOGY DEVELOPMENT INSTITUTE (DOST ITDI)
Filing Date
2024-11-28
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Existing methods for producing cellulose whiskers from cotton waste materials are not environmentally friendly and do not achieve high yields, limiting their application in high-performance composite materials for fuel cells.

Method used

A method involving alkaline treatment, acid hydrolysis, and sonication is used to synthesize cellulose whiskers from cotton waste, followed by polymer blending to create polymer-cellulose whisker composites, optimizing parameters like NaOH concentration, acid concentration, and reaction time for high yield and improved properties.

Benefits of technology

The method produces cellulose whiskers with enhanced hydrophilicity, mechanical properties, and thermal stability, suitable for proton-exchange membranes in fuel cells, offering improved sustainability and performance.

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Abstract

The present invention relates to a method for producing polymer-cellulose whisker composites, which include polymers and cellulose whiskers synthesized from cotton waste materials, as nanofillers using a more sustainable and high-yield process. Polymer-cellulose whisker composites produced by the method of the present invention can be used as energy materials, such as membranes for fuel cell applications.
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