| Title |
Self-healing and chemical resistance polyurethane elastomers based on 2-ureido-4[1H]pyrimidinone |
| ID_Doc |
10512 |
| Authors |
Fu, WY; Mei, HF; Zhang, ZJ; Wang, Q; Li, R; Zhang, SS; Wang, GJ; Wei, H; Zhang, CY; Lin, CG; Wang, L |
| Title |
Self-healing and chemical resistance polyurethane elastomers based on 2-ureido-4[1H]pyrimidinone |
| Year |
2022 |
| Published |
Journal Of Applied Polymer Science, 139, 39 |
| DOI |
10.1002/app.52931 |
| Abstract |
Self-healing polyurethane elastomers allow increasing the life cycle, adapting to the circular economy, thus reducing the generation of waste. In this work, ureido-4[1H]-pyrimidinone (UPy) compounds was used to construct on supramolecular polymer. The self-healing polyurethane elastomers were successfully prepared by supramolecular polymer based on UPy via a simple blending way. The self-healing performance of the polyurethane elastomers with UPy were investigated by the scratch test and the cut-off test, respectively. The scratch of the self-healing polyurethane elastomer (PU-15UPy) was totally healed in 1 h at 35 degrees C. The tensile strength and the elongation at break of PU-15UPy were 0.81 MPa and 563.8%. After the cut-off test, the healing efficiencies of tensile strength were 63.8% (0.51 MPa) and 85.2% (0.69 MPa) after healing for 10 h at 35 and 80 degrees C, respectively. The healing efficiency of tensile strength reached the value of 90.1% (0.73 MPa) after healing for 24 h at 80 degrees C. The chemical resistance of the self-healing polyurethane elastomers was tested by immersion in water, NaCl solution (3%), HCl solution (5%), NaOH solution (5%), and diesel, respectively. The mass loss of self-healing polyurethane elastomers were all less than 2% after immersed in these solutions for 1 month, indicating the excellent chemical resistance performance of PU-15UPy. |
| Author Keywords |
coatings; elastomers; mechanical properties; polyurethane |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000831035000001 |
| WoS Category |
Polymer Science |
| Research Area |
Polymer Science |
| PDF |
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