期刊
NANOMATERIALS
卷 12, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/nano12010092
关键词
water leak detection; conductive polymer composite; immiscible thermoplastic; elastomer blend; carbon nanotubes; filament
类别
资金
- Region Haut-de-France
- BPI France [FUI 25]
- [FUI 25 MONI2TEX]
This study examines the application of conductive polymer composites in detecting liquid leaks and found that using immiscible polymers blend with elastomers increases the fluidity of the polymer and creates flexible conductive yarn.
In many textile fields, such as industrial structures or clothes, one way to detect a specific liquid leak is the electrical conductivity variation of a yarn. This yarn can be developed using melt spun of Conductive Polymer Composites (CPCs), which blend insulating polymer and electrically conductive fillers. This study examines the influence of the proportions of an immiscible thermoplastic/elastomer blend for its implementation and its water detection. The thermoplastic polymer used for the detection property is the polyamide 6.6 (PA6.6) filled with enough carbon nanotubes (CNT) to exceed the percolation threshold. However, the addition of fillers decreases the polymer fluidity, resulting in the difficulty to implement the CPC. Using an immiscible polymers blend with an elastomer, which is a propylene-based elastomer (PBE) permits to increase this fluidity and to create a flexible conductive monofilament. After characterizations (morphology, rheological and mechanical) of this blend (PA6.6(CNT)/PBE) in different proportions, two principles of water detection are established and carried out with the monofilaments: the principle of absorption and the short circuit. It is found that the morphology of the immiscible polymer blend had a significant role in the water detection.
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