Mechanically robust nanocomposites from screen-printable polymer/graphene nanosheet pastes

Area of Science:

• Materials Science
• Polymer Science
• Nanotechnology

Background:

• Graphene-based polymer nanocomposites offer superior mechanical properties but face challenges in scalable, affordable production.
• Existing methods are often limited to laboratory scale, hindering practical application and commercialization.

Purpose of the Study:

• To develop an inexpensive, scalable, and versatile manufacturing process for graphene-reinforced polymer nanocomposites.
• To investigate the potential of screen printing for producing high-performance nanocomposites with enhanced mechanical and anti-wear properties.

Main Methods:

• A screen printing approach using formulated graphene-modified water-based printable pastes.
• Surface tailoring of graphene (PEI-rGO) to improve dispersion and interfacial bonding with a waterborne polyurethane (WPU) matrix.
• Direct printing on textiles to evaluate anti-wear performance.

Main Results:

• Achieved inexpensive and scalable manufacturing of graphene-reinforced polymer nanocomposites.
• Enhanced tensile strength and Young's modulus of WPU by approximately 9.46 and 19.8 times, respectively.
• Demonstrated effective anti-wear performance through direct printing on textiles.

Conclusions:

• Screen printing is a viable general strategy for facile, industrial-scale fabrication of polymer nanocomposites.
• This method economically bridges the gap between scientific research and real-world applications.
• The developed process facilitates mass production and personalized material design.