Modified polydimethylsiloxane self-repairing elastomer material and preparation method thereof

By introducing fluoroaldehyde compounds and modified carbon nanotubes into polydimethylsiloxane self-healing elastomer materials, the problems of poor hydrophobicity and insufficient hardness of the material are solved, and higher contact angles, hydrophobic properties, hardness and elongation of break are achieved, which are suitable for marine anti-fouling applications.

CN119823576APending Publication Date: 2025-04-15HAINAN NORMAL UNIV
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Patent Information

Application Number
CN202411873861.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-04-15

AI Technical Summary

Technical Problem

The existing polydimethylsiloxane self-repair elastomer materials have small contact angles, resulting in poor hydrophobicity, easy to be defiled by the ocean, and insufficient hardness and elongation of break, limiting their application in marine environments.

Method used

By introducing fluoroaldehyde compounds and modified carbon nanotubes, the contact angle and hydrophobic properties of the material are improved, and by introducing epoxy groups into the material, a network interconnection structure is formed, and the hardness and elongation of the material are improved.

Benefits of technology

It significantly improves the contact angle and hydrophobic properties of the material, making it difficult for biological adhesion to be defiled in the marine environment, and at the same time improves the hardness and elongation of break, enhancing its application capabilities in the field of marine anti-fouling.

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Abstract

The invention belongs to the technical field of high polymer materials, and particularly relates to a modified polydimethylsiloxane self-repairing elastomer material and a preparation method thereof. The fluorine-containing aldehyde compound, the modified carbon nanotube and other components are used, so that the contact angle of the elastomer material is effectively increased, the hydrophobic property of the elastomer material is improved, the hardness and the elongation at break of the material are improved, and the elastomer material can be applied to the field of marine antifouling.
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Citation Information

Patent Citations

  • Self-repairing polydimethylsiloxane elastomer with high mechanical strength and preparation method thereof

    CN116903862A

  • Polysiloxane nanometer composite material preparation method

    CN110857359A

  • Applications of high-tensile and high-toughness polysiloxane nanometer composite elastomer in degradable materials

    CN110857360A

  • Stretchable, degradable and self-healing polymers through a combination of imine bonds and metal coordination

    US20210061958A1