Bicomponent fiber with piezoelectric effect, fabric with piezoelectric effect, preparing method of bicomponent fiber with piezoelectric effect and preparing method of fabric with piezoelectric effect

Abstract

The invention discloses a bicomponent fiber with a piezoelectric effect, a fabric with a piezoelectric effect, a preparing method of the bicomponent fiber with the piezoelectric effect and a preparingmethod of the fabric with the piezoelectric effect. The bicomponent fiber comprises a high-density-polyethylene core layer with the electrical conductivity and a polyvinylidene fluoride skin layer with the piezoelectric effect, and 5%-15% of carbon black is contained in the high-density-polyethylene core layer. Warp yarn adopts the bicomponent fiber with the piezoelectric effect, weft yarn adoptsa commercial conductive fiber or polyester yarn wrapped with thin silica gel, the warp yarn and the weft yarn are woven into a fabric on a weaving machine, and a full-spinning piezoelectric sensor can be formed. According to the bicomponent fiber with the piezoelectric effect, when the piezoelectric fabric suffers from ambient pressure, a polarization phenomenon is generated inside the piezoelectric fabric, mechanical energy is converted into electric energy, and the electric energy is collected and converted into required electrical signals through data collecting equipment. The full-spinning piezoelectric sensor is a great part of intelligent textile development, has great help in the medical field, can be applied to clothing or equipment to monitor respiration signals or the heart rate, and can be applied to the aspects of pressure monitoring, an actuator and the like.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a bicomponent fiber and fabric with piezoelectric effect and a preparation method thereof. Background technique [0002] With the rapid development of smart clothing, people hope that it has the characteristics of light weight, comfort and flexibility, and higher requirements are put forward for piezoelectric sensors. The piezoelectric effect refers to the phenomenon that when certain dielectrics are deformed (including bending and stretching deformation) by an external force in a certain direction, charges will be generated on the surface due to the polarization of internal charges. Piezoelectric sensors are sensors made using the piezoelectric effect produced by certain dielectrics under stress, which can generate measurable signals under relatively small force conditions, can respond to almost any type of deformation, and have low cost and low energy consumption. ...

AI Technical Summary

Problems solved by technology

But it is inconvenient, the area is too large, the number of bending times of the film is limited, and it is easy to wear and tear

[0004] It can be seen from the background information that traditional piezoelectric sensors are very rigid, while piezoelectric sensors made of organic materials cannot fully meet the light weight, comfort and softness required by smart fabrics, and are easily subject to friction, bending and loss, which is inconvenient sex

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