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25 April 2023 Mechanical and gas permeation behaviour of PVDF/PA6 blend composite
Jihong Wen, Dong Huang, Xinpeng Zhang, Qingfu Zhao, Qiong Zhou
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Proceedings Volume 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022); 125980B (2023) https://doi.org/10.1117/12.2672986
Event: Eighth International Conference on Energy Materials and Electrical Engineering (ICMEE 2022), 2022, Guangzhou, China
Abstract
Improving the resistance of the lining material of the flexible riser to CO2 can effectively prevent the formation of an acidic environment and metal corrosion in the flexible riser annulus. However, it remains a challenge to improve the barrier performance while maintaining the original mechanical properties. Herein, we melt blended PVDF with PA6 in various proportions, characterized by Differential Scanning Calorimetry (DSC), Fourier Transforms iInfrared (FTIR), Scanning Electron Microscope (SEM), and carried out tensile and permeability tests. The results show that the permeability coefficient of the PVDF/PA6 composite is lower than that of the primary PVDF. After blending with PA6, PVDF/15% PA6 elongation at break was only 19.3%, which was significantly lower than that of primary PVDF and PA6. PVDF/10% PA6 shows an 11.43% decrease in CO2 permeability coefficient and a 20% decrease in elongation at break, which still meets the pipeline use.
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Jihong Wen, Dong Huang, Xinpeng Zhang, Qingfu Zhao, and Qiong Zhou "Mechanical and gas permeation behaviour of PVDF/PA6 blend composite", Proc. SPIE 12598, Eighth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2022), 125980B (25 April 2023); https://doi.org/10.1117/12.2672986
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KEYWORDS
Composites
Materials properties
Permeability
Crystallization
Polymers
Scanning electron microscopy
Interfaces
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