Extended Study on the Development of 3D-Printed Overlay Structures in Protective Gloves Using Ultrasonic and Contact...

Area of Science:

• Materials Science
• Textile Engineering
• Additive Manufacturing

Background:

• Development of advanced personal protective equipment (PPE) requires innovative material combinations.
• Hybrid protective gloves integrating textile substrates with polymeric overlays offer enhanced functionality.
• Optimizing the interface between different materials is crucial for performance.

Purpose of the Study:

• To investigate the application of 3D-printed PET-G mesh overlays onto textile substrates for protective gloves.
• To evaluate the impact of welding techniques (ultrasonic vs. contact) on weld quality and functional durability.
• To assess the influence of weld uniformity and substrate compatibility on mechanical performance.

Main Methods:

• Applying 3D-printed PET-G mesh overlays onto polyamide, polyester, and cotton substrates.
• Utilizing ultrasonic welding and contact welding for overlay attachment.
• Analyzing weld morphology and bonding integrity via X-ray microtomography (micro-CT).
• Assessing mechanical performance using bending fatigue tests.

Main Results:

• Ultrasonic welding yielded more uniform welds compared to contact welding.
• Ultrasonic welding enhanced fatigue resistance, especially on cotton and polyamide substrates.
• Non-uniform welds from contact welding correlated with reduced mechanical durability.
• Weld thickness uniformity was identified as a critical factor for performance.

Conclusions:

• 3D-printed overlay structures show potential for hybrid protective gloves.
• Ultrasonic welding is superior for achieving uniform bonds and improving functional durability.
• Weld uniformity and substrate choice are key parameters for optimizing protective glove performance.
• This research provides insights into using additive manufacturing for PPE development.