Journal
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
Volume 28, Issue 1, Pages 115-124Publisher
WILEY
DOI: 10.1002/vnl.21871
Keywords
carbon black; disulfide metathesis; electrical conductivity; healing polyurethane; solvent casting
Funding
- Jeonbuk National University
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The electrically conductive healing polymer composites prepared by the solvent casting method can recover conductivity and mechanical property rapidly after damage, making them promising candidates for optoelectronic and energy-related devices.
The electrically conductive healing polymer composites, which have the ability to recover conductivity after damage, are promising candidates as electrodes for electrical devices. In this work, a solvent casting method was used to prepare a healing conductive polymer composite of polyurethane (PU) and carbon black (CB). PU contains dynamic disulfide bonds that can undergo metathesis inducing a fast healing property. The electrical conductivity of the PU/CB composite is recovered by heating at 70 degrees C for 1 min as a result of the synergistic effect of the hydrogen bond and disulfide metathesis. The tensile test shows complete recovery of stress but lower strain after cut and heals at 70 degrees C for 1 h. The fast healing electrical conductivity, excellent mechanical property recovery along with easy preparation offer this PU/CB composite as a prospective candidate for optoelectronic and energy-related devices.
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