期刊
COMPOSITES COMMUNICATIONS
卷 27, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.coco.2021.100876
关键词
Polyurethane elastomer; Nano-SiO2; Ionic liquid; Impact resistance
资金
- Educational Commission of Hunan Province of China [20B579, 19B570]
- Innovation Team of Hunan Province [2018RS3091]
- National Natural Science Foundation of China [11605149, 11872053]
- Hunan Provincial Natural Science Foundation of China [2020JJ4086, 2020JJ5530]
The study shows that PUE with 2wt% IL@SiO2 loading has the best static compressive properties and dynamic impact resistance, with improvements in static and dynamic compressive yield strength by 216.15% and 190.68% compared to pure PUE. Energy absorption is also increased by 18.87%, with excellent deformation recovery performance. This indicates that IL@SiO2 is an excellent impact resistance and reinforcing material for PUE.
A nano-polymer (IL@SiO2) was synthesized by double bond polymerization and creatively applied to polyurethane elastomer (PUE-IL@SiO2). The mechanical properties and energy absorption of PUE-IL@SiO2 at static compression and dynamic impact were studied, respectively. The results show that: compared with pure PUE, the static compressive properties and dynamic impact resistance of PUE with a loading of IL@SiO2 of 2wt% are the best, and the static and dynamic compressive yield strength are improved by 216.15% and 190.68% compared with PUE respectively. Moreover, the energy absorption of PUE-2%IL@SiO2 is improved by 18.87% compared with PUE. The composite materials (PUE-2%IL@SiO2) also has excellent deformation recovery performance. These outstanding mechanical properties illustrate the IL@SiO2 is excellent impact resistance and reinforcing materials for PUE.
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