| Reconstruction of Tough and Fatigue-resistant Domestic NR Networks by End-group Hydrogen Bonds |
| Received:May 10, 2022 Revised:May 10, 2022 |
| DOI：10.12136/j.issn.1000-890X.2022.11.0803 |
| Key Words: NR；hydrogen bond；non-rubber component；phospholipid；amino acid；strength；toughness； fatigue resistance |
| Author Name | Affiliation | E-mail | | JIANG Yanyan | Sichuan University | jyyscu1029@163.com | | ZHANG Rong | Sichuan University | | | TANG Maozhu | Sichuan University | | | XU Yunxiang* | Sichuan University | yxxu@scu.edu.cn |
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| Abstract: |
| Abstract：Compared with Malaysian natural rubber（NR），the performance of domestic NR had a big
gap，and it was difficult to meet the requirements of high-end fields such as aircraft tires. In this study,
small molecular components such as phospholipids or amino acids （L-α-Lecithin，ethanolamine phosphate，
L-tyrosine and L-lysine） were introduced into domestic NR by solution blending，and the NR with high
strength and high toughness was successfully prepared. The results showed that the strength，toughness and
fatigue resistance of domestic NR after the blending modification were equivalent to those of Malaysian
NR. The blended component interacted with the non-rubber component in NR through hydrogen bonds and
promoted the formation of the ordered secondary structure of the proteins in NR. The addition of blended
components increased the transient and permanent entanglement of the NR system，which was the main
reason for the improvement of NR properties. |
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