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Construction of sacrificial network in styrene-ethylene/butadiene-styrene triblock copolymer composites and their mechanical behaviors.
- Source :
-
Journal of Macromolecular Science: Pure & Applied Chemistry . 2021, Vol. 58 Issue 12, p912-921. 10p. - Publication Year :
- 2021
-
Abstract
- Herein, benefiting from effective energy-dissipation mechanism, the high-performance thermoplastic elastomers (ZASM/SEBS composites) with excellent mechanical strength-toughness combination were prepared by blending 3-Amino-1,2,4-triazole (ATA), maleic anhydride grafted styrene-ethylene/butadiene-styrene triblock copolymer (SEBS-g-MA), zinc acetate and styrene-ethylene/butadiene-styrene triblock copolymer (SEBS) successively. The Zn2+-carboxyl coordination and hydrogen bonding dual-dynamic network of composites was proved by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The mechanical performance of ZASM/SEBS composites was investigated by tensile test. With the decreasing mass ratio of ZASM in ZASM/SEBS composites, the tensile strength and elongation at break increased firstly and then decreased. When the mass ratio of ZASM in composites was 30%, the tensile strength reached 32.1 MPa along with the elongation at break of 1383%, attaining the best mechanical strength-toughness combination. It is demonstrated that the ZASM/SEBS composites could be a promising substitute for traditional vulcanized rubber. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10601325
- Volume :
- 58
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Journal of Macromolecular Science: Pure & Applied Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 154077538
- Full Text :
- https://doi.org/10.1080/10601325.2021.1967170