Elastic material and production method and application thereof

An elastic material and polymerization reaction technology, applied in the field of elastic materials, can solve the problems of high power consumption, limited functions, inconvenient medical applications, etc., and achieve the effect of enhancing mechanical properties and piezoelectric properties.

Inactive Publication Date: 2019-11-12
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional real-time monitoring devices have serious disadvantages, such as rigid structures, high power consumption, and limited functions, resulting in inconvenience in daily life and limited medical applications, while preparing a piezoelectric material that can spontaneously supply electricity is The focus of current research, but not all piezoelectric materials at this stage are prepared using organic materials. Usually, inorganic rigid piezoelectric powder particles are mixed into polydimethylsiloxane (PDMS), so that the self-powered Piezoelectric materials are not satisfactory in terms of stretch and elasticity, and are far from practical applications for human body wear

Method used

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  • Elastic material and production method and application thereof
  • Elastic material and production method and application thereof
  • Elastic material and production method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]Polyvinylidene fluoride, sodium p-styrene sulfonate, acrylonitrile, crosslinking agent N, N-methylenebisacrylamide, initiator ammonium persulfate (APS) are 10:60:10:60 according to the mass ratio: 4:0.5, the solid content is 5w / v%, dissolved in DMSO in turn, N 2 Under the atmosphere, heat preservation reaction at 40° C. for 120 minutes, and then freeze-dry, the freeze-drying temperature is -80° C., and the freeze-drying time is 48 hours to obtain an elastic material.

[0043] Such as figure 1 As shown, the surface of the elastic material prepared in this embodiment is wrinkled.

Embodiment 2

[0045] Polyvinylidene fluoride, sodium p-styrenesulfonate, acrylonitrile, crosslinking agent N, N-methylenebisacrylamide, initiator ammonium persulfate (APS) are 15:70:15:5 according to the mass ratio: 0.75, the solid content is 10w / v%, dissolved in DMSO in turn, N 2 Under the atmosphere, heat preservation reaction at 50° C. for 150 minutes, and then freeze-dry, the freeze-drying temperature is -50° C., and the freeze-drying time is 52 hours to obtain an elastic material.

[0046] Such as figure 1 As shown, the surface of the elastic material prepared in this example is more wrinkled than that of the elastic material in Example 1.

Embodiment 3

[0048] Polyvinylidene fluoride, sodium p-styrene sulfonate, acrylonitrile, crosslinking agent N, N-methylenebisacrylamide, initiator ammonium persulfate (APS) are 20:80:20:6 according to the mass ratio: 1, the solid content is 15w / v%, dissolved in DMSO in turn, N 2 Under the atmosphere, heat preservation reaction at 60° C. for 180 minutes, and then freeze-dry, the freeze-drying temperature is -20° C., and the freeze-drying time is 56 hours to obtain an elastic material.

[0049] Such as figure 1 As shown, the surface of the elastic material prepared in this embodiment is more wrinkled than that of the elastic material in Example 2. In Examples 1 to 3, as the content of PVDF increases, the wrinkle condition is strengthened. This wrinkle appearance is the structural basis of the high elasticity of the elastomer and provides the energy dissipation function.

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Abstract

The invention relates to the technical field of elastic materials, in particular to an elastic material and a production method and application thereof. The disclosed elastic material is of a structure as shown in a formula (I) as shown in the specification. The elastic material is an organic elastic material with electro-mechanical response, and the organic elastic material is good in mechanicalresilience, does not need external energy supplies, has good voltage and current output performance, has excellent and stable electro-mechanical responsiveness at the same time, is soft, can be used for producing a micro device which is worn on a body to achieve real-time monitoring of human body motion situations, and has large application prospects in the fields of human health monitoring, electronic skin and the like.

Description

technical field [0001] The invention relates to the technical field of elastic materials, in particular to an elastic material and its preparation method and application. Background technique [0002] Most of the traditional electronic strain sensors are based on metal and semiconductor materials, which are poor in portability, flexibility and wearability. However, they output pressure voltage signals through their comfortable and intimate skin contact to evaluate body information, which has aroused the research of relevant scientific researchers. Interest, there are high-level articles and reports at home and abroad, and it has great prospects for scientific research, production and application. [0003] Cardiovascular disease is one of the leading causes of death worldwide. Caused 17.3 million deaths (31.5%) in 2013, compared to 12.3 million (25.8%) in 1990, however, it is estimated that 90% of cardiovascular disease is preventable and diabetes is one of the more common h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F259/08C08F212/14C08F220/44C08F222/38G01L1/16
CPCC08F259/08G01L1/16C08F212/14C08F220/44C08F222/385
Inventor 谭帼馨涂凌杰周蕾付如民
Owner GUANGDONG UNIV OF TECH
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