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Qi F, Zheng Z, Xiang Z, Zhang B, Qi F, Zhao N, Ouyang X. In Situ Grafted Composite Nanoparticles-Reinforced Polyurethane Elastomer Composites with Excellent Continuous Anti-Impact Performance. MATERIALS 2021; 14:ma14206195. [PMID: 34683787 PMCID: PMC8538699 DOI: 10.3390/ma14206195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/10/2021] [Accepted: 10/14/2021] [Indexed: 11/16/2022]
Abstract
Polyurethane elastomer (PUE) has attracted much attention in impact energy absorption due to its impressive toughness and easy processability. However, the lack of continuous impact resistance limits its wider application. Here, an amino-siloxane (APTES) grafted WS2-coated MWCNTs (A-WS2@MWCNTs) filler was synthesized, and A-WS2@MWCNTs/PUE was prepared by using the filler. Mechanical tests and impact damage characterization of pure PUE and composite PUE were carried out systematically. Compared with pure PUE, the static compressive strength and dynamic yield stress of A-WS2@MWCNTs/PUE are increased by 144.2% and 331.7%, respectively. A-WS2@MWCNTs/PUE remains intact after 10 consecutive impacts, while the pure PUE appears serious damage after only a one-time impact. The improvement of mechanical properties of A-WS2@MWCNTs/PUE lies in the interfacial interaction and synergy of composite fillers. Microscopic morphology observation and damage analysis show that the composite nanofiller has suitable interfacial compatibility with the PUE matrix and can inhibit crack growth and expansion. Therefore, this experiment provides an experimental and theoretical basis for the preparation of PUE with excellent impact resistance, which will help PUE to be more widely used in the protection field.
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Affiliation(s)
- Feng Qi
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (F.Q.); (Z.Z.); (N.Z.); (X.O.)
- Qingdao Green World New Material Technology Co., Ltd., Qingdao 266100, China
| | - Zhuoyu Zheng
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (F.Q.); (Z.Z.); (N.Z.); (X.O.)
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Zehui Xiang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (F.Q.); (Z.Z.); (N.Z.); (X.O.)
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
- Correspondence: (Z.X.); (B.Z.); (F.Q.)
| | - Biao Zhang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (F.Q.); (Z.Z.); (N.Z.); (X.O.)
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
- Correspondence: (Z.X.); (B.Z.); (F.Q.)
| | - Fugang Qi
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (F.Q.); (Z.Z.); (N.Z.); (X.O.)
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
- Correspondence: (Z.X.); (B.Z.); (F.Q.)
| | - Nie Zhao
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (F.Q.); (Z.Z.); (N.Z.); (X.O.)
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Xiaoping Ouyang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; (F.Q.); (Z.Z.); (N.Z.); (X.O.)
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
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