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Intrinsic room temperature self-healing natural rubber based on metal thiolate ionic network
- Source :
- Polymer Testing, Vol 93, Iss, Pp 106975-(2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- An intrinsic self-healing natural rubber featuring reversible metal-thiolate ion networks was fabricated and the corresponding healing mechanism and mechanical properties were presented. The developed materials were able to repair themselves at room temperature upon damage without any external stimuli. Reversible metal-thiolate ion networks were proven to form within the rubber material. These networks dominated the cross-linking system and were identified by Differential Scanning Calorimetry (DSC) and Fourier-transform Infrared Spectroscopy (FTIR). Meanwhile, the quantitative amount of metal-thiolate ion networks and covalent crosslinks was determined by swelling testing. Scanning Electron Microscopy (SEM) results revealed that intermolecular diffusion had occurred at the fracture area of the self-healing samples. The results revealed that the mechanical properties could be 100% regenerated after the broken samples were brought into contact with each other. It was also found that self-healing increased by 60% of the material lifespan. This new material is expected to open up promising avenues for the manufacturing of sustainable rubber products.
- Subjects :
- Materials science
Polymers and Plastics
Scanning electron microscope
Self-healing
Infrared spectroscopy
Ionic bonding
02 engineering and technology
010402 general chemistry
01 natural sciences
Ion
Differential scanning calorimetry
Natural rubber
medicine
Polymers and polymer manufacture
Fourier transform infrared spectroscopy
Organic Chemistry
technology, industry, and agriculture
Reversible ionic network
021001 nanoscience & nanotechnology
0104 chemical sciences
TP1080-1185
Chemical engineering
visual_art
visual_art.visual_art_medium
Swelling
medicine.symptom
0210 nano-technology
Subjects
Details
- ISSN :
- 01429418
- Volume :
- 93
- Database :
- OpenAIRE
- Journal :
- Polymer Testing
- Accession number :
- edsair.doi.dedup.....79dbd34c346cf646cf80cfbd904737fc