Preparation and Application of Flexible Ethylene Vinyl Acetate Adhesive Composites by Ultrasonic-Assisted Forced Infiltration

Herein, carbon nanotubes (CNTs)-cellulose nanocrystals (CNCs)/ethylene-vinyl acetate (EVA) composite are prepared with excellent bonding properties, electrical conductivity, and thermal conductivity using an ultrasonic-assisted forced infiltration (UAFI) method. The CNTs-CNCs (10:1)/EVA composite had the highest shear (82.9 N) and strip (12.2 N) forces at the interface when bonding leather to fabric as an interface bonding material (IBM). Different mass ratios of CNTs to CNCs in the composites lead to different electrical and thermal conductivity properties. When the mass ratio of CNTs to CNCs is 10:1, the CNTs-CNCs(10:1)/EVA composites reach an electrical and thermal conductivity of 158.37 S m(-1) and 6.351 W (m center dot K)(-1), respectively. In addition, the CNTs-CNCs(10:1)/EVA composite shows excellent thermal stability, mechanical properties, thermal performance, and electromagnetic shielding. The prepared EVA composite has a broad application prospect in IBM.

Automated summary

In this study, a carbon nanotubes (CNTs)-cellulose nanocrystals (CNCs)/ethylene-vinyl acetate (EVA) composite was prepared using an ultrasonic-assisted forced infiltration (UAFI) method. The composite exhibited excellent bonding properties, electrical conductivity, and thermal conductivity. By adjusting the mass ratio of CNTs to CNCs, different electrical and thermal conductivity properties can be achieved. The prepared EVA composite also showed thermal stability, mechanical properties, thermal performance, and electromagnetic shielding, making it suitable for interface bonding material (IBM) applications.