Toward Robust Electrical Heating Textiles: Factors Influencing Electrical Heating Performance and Durability

Area of Science:

• Materials Science
• Textile Engineering
• Electrical Engineering

Background:

• Growing demand for high-performance, durable e-textiles necessitates advanced conductive coatings.
• Current coatings often struggle to balance electrical functionality with mechanical robustness.

Purpose of the Study:

• To develop and optimize conductive inks for e-textiles.
• To investigate the impact of binder selection, coating architecture, and multi-walled carbon nanotube (MWCNT) loading on e-textile performance.
• To achieve a balance between electrical properties, thermal performance, and mechanical durability.

Main Methods:

• Fabric samples were coated with different binder systems (OC-Biobinder, A-5001, and hybrid).
• Surface morphology was analyzed using field emission scanning electron microscopy (FESEM) before and after durability tests.
• Electrical conductivity, Joule heating performance, wettability, and mechanical properties (bending resistance, durability, washing/rubbing fastness) were evaluated.

Main Results:

• The OC-Biobinder resulted in a hydrophilic surface, improved conductivity, and enhanced Joule heating but showed reduced mechanical durability.
• The A-5001 binder offered superior washing/rubbing fastness, bending durability, and flexibility but had lower conductivity and Joule heating.
• A hybrid approach layering A-5001 and OC-Biobinder significantly improved overall performance, leveraging complementary binder properties.

Conclusions:

• Binder selection and coating architecture are critical for tailoring e-textile performance.
• A hybrid binder system offers a promising strategy for creating durable, functional e-textiles with enhanced conductivity and thermal properties.
• This research provides a robust pathway for developing next-generation electronic textiles.