东华大学学报(英文版)

2019, v.36(05) 451-457

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Effect of Dip Coating Process on the Performance of Graphene/Spandex Yarn Strain Sensor
Effect of Dip Coating Process on the Performance of Graphene/Spandex Yarn Strain Sensor

董小龙;王婷婷;胡吉永;董宏强;卢赟;杨旭东;

摘要(Abstract):

This study presented the effect of the concentration of graphene in the dispersion,the type of polyvinyl alcohol( PVA) and the surfactant on the sensing properties of dip-coated graphene/spandex yarns as resistance strain sensors. Experimental results showed that the addition of styrene-acrylic emulsion surfactant facilitates the dispersion of graphene and then improves the conductivity and sensing performance,and the sensitivity is up to 91. The conductivity and sensing properties of graphene/spandex yarns at 2% graphene dispersion are better than those at 1% graphene dispersion. When the conductive yarn treated by 2% graphene dispersion is stretched to 50%, the sensitivity is up to 29, the repeatability is good,and the hysteresis is low. In terms of the binding agent,PVA as a high alcoholysis and large polymerization decreases the sensitivity,repeatability as well as the hysteresis.

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基金项目(Foundation): Biomedical Textile Material Science and Technology,China(111 Project)(No.B07024)

作者(Author): 董小龙;王婷婷;胡吉永;董宏强;卢赟;杨旭东;

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