High-strength and high-toughness flexible sensing fiber composite membrane and preparation method thereof

Abstract

The invention discloses a high-strength and high-toughness flexible sensing fiber composite membrane and a preparation method thereof.The preparation method comprises the following steps that 1, a thermoplastic polyvinyl alcohol solution and a borax solution are mixed according to a certain proportion and stirred and dispersed in a magnetic stirrer, and binary mixed dispersion liquid of the thermoplastic polyvinyl alcohol solution and the borax solution is prepared; and 2, dipping a flexible sensing fiber membrane in the dispersion solution, and drying and curing the obtained product in a drying oven to prepare the high-strength and high-toughness flexible sensing fiber composite membrane. The flexible sensing fiber composite membrane prepared by the method has high strength and high toughness, the preparation process is simple, large-scale production can be realized, multiple sensing requirements on humidity sensitivity, stress strain, temperature sensitivity, pH sensitivity and the like can be met, and the flexible sensing fiber composite membrane can be widely applied to wearable electronic equipment and flexible sensing fabrics.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a high-strength and high-toughness flexible sensing fiber composite membrane and a preparation method thereof. Background technique [0002] With the advancement of science and technology, people's requirements for a high-quality life, the research based on flexible wearable devices is increasing day by day. As the core component of flexible electronic devices, flexible strain sensors have broad application prospects in the fields of electronic skin and human health monitoring. In recent years, efforts have been devoted to the development of flexible, stretchable, and high-sensitivity-factor sensing materials for the wide application of wearable sensors. Humidity sensors are increasingly used in many fields such as industry, agriculture, smart home, healthcare, etc. In addition to being able to sense measurements, the basic characteristics of these devices are mechanical c...

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However, carbon nanotubes are nanomaterials, which are prone to agglomeration effects,

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