Improving the Dynamic Mechanical Properties of XNBR Using ILs/KH550-Functionalized Multilayer Graphene

Area of Science:

• Materials Science
• Nanotechnology
• Polymer Chemistry

Background:

• Graphene is a promising reinforcing agent for high-performance composites.
• Poor compatibility and weak interfacial interactions hinder graphene's application in composites.
• Need for effective and eco-friendly graphene functionalization methods.

Purpose of the Study:

• To develop an effective and environmentally friendly method for graphene functionalization.
• To improve the interfacial compatibility and dispersion of graphene within a polymer matrix.
• To enhance the dynamic mechanical properties of carboxylated acrylonitrile-butadiene rubber (XNBR) composites.

Main Methods:

• Electrochemical exfoliation of graphite in 1-butylsulfonate-3-methylimidazolium bisulfate ((BSO3HMIm)(HSO4)) solution to obtain modified graphene.
• Functionalization of the modified graphene with (3-aminopropyl) triethoxysilane (KH550) via reaction with amine groups.
• Incorporation of the functionalized graphene ((BSO3HMIm)(HSO4)/KH550) as a filler into XNBR matrix.

Main Results:

• Successfully prepared (BSO3HMIm)(HSO4)/KH550-functionalized graphene.
• The functionalized graphene filler significantly improved the dynamic mechanical properties of XNBR composites.
• Enhanced properties are attributed to improved interfacial interaction, graphene characteristics, and filler dispersion.

Conclusions:

• The proposed functionalization method is effective for improving graphene-polymer interactions.
• Functionalized graphene enhances the performance of XNBR-based nanocomposites.
• This approach offers a pathway for utilizing graphene in advanced composite materials.