Characterization of the Self-Healing Mechanism of VHB 4910. (2016)

• Record Type: Journal Article
• Authors: Fan, Fan; Szpunar, Jerzy
• Is Part Of: Procedia engineering. Volume 141(2016)
• Page Start: 47
• Page End: 52
• Publication Date: 2016
• Subjects: Self-healing -- Chain diffusion -- VHB 4910 -- Tensile tests -- Raman spectrum; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2015.08.1109
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: Self-healing materials have been heavily studied because of its ability to extend the service life of materials. However, current self-healing materials with strong mechanical property requires energy input to trigger the healing process while the materials with autonomous self-healing ability are not tough enough for practical applications. Surprisingly, we found a commercial material, VHB 4910, compromising a strong mechanical property as elastomers and rapid self-healing ability as hydrogels. We confirmed the self-healing ability of VHB 4910 with tensile tests. Raman and infrared spectra illustrate the bonding structure of this material. X-ray diffraction pattern shows an amorphous inner structure of this material. We confirmed that both hydrogen bonding and chain diffusion process contributed to the self-healing ability.