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Preparation method of multifunctional super-hydrophobic composite material

A conductive composite material, super-hydrophobic technology, applied in electromagnetic measuring devices, fiber types, textiles and papermaking, etc., can solve problems such as corrosion of composite materials and limit practical applications, and achieve poor environmental applicability, excellent use stability and high temperature resistance performance, the effect of excellent moisture resistance

Active Publication Date: 2021-01-12
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In many cases, composite materials may also be corroded by acids, alkalis and organic solvents, which severely limits their practical applications, especially under certain harsh conditions

Method used

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  • Preparation method of multifunctional super-hydrophobic composite material
  • Preparation method of multifunctional super-hydrophobic composite material
  • Preparation method of multifunctional super-hydrophobic composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The flexible substrate (nylon elastic fabric) was soaked in the ethanol solution (10 wt %) of the silver precursor (STA) for 1h to obtain a pretreated substrate with STA adsorbed, and the precursor in the solution could be evenly distributed On the surface of the substrate, it is more conducive to the subsequent formation of a uniform conductive network system. Dilute 5 g of hydrazine hydrate solution (AR, with a purity of 80%) with 15 g of deionized water to obtain an aqueous phase with a mass concentration of hydrazine hydrate of 20%, dilute 0.4 g of dimethylsiloxane with 19.56 g of tetrahydrofuran (THF) and solidify it 0.04 g of dimethylsiloxane was used to obtain an oil phase with a mass concentration of dimethylsiloxane of 2%, wherein the commercially available SYLGARD 184 DOW CORNING was used for dimethylsiloxane and its curing agent. The water phase is used as a poor solvent to cause interfacial effects, and the oil phase is used as an emulsifier. The water phase...

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Abstract

The invention discloses a multifunctional super-hydrophobic conductive composite material and a preparation method thereof. Pre-coating with a silver precursor solution is carried out on a flexible base material, then the pretreated base material is fully dipped in an oil-in-water emulsion system with reducing capacity at 60 DEG C for 0.5 h, and finally a reduced sample is cured at 80 DEG C to obtain the composite material. The composite material prepared by the preparation method has excellent moisture resistance, electric heating performance and excellent use stability, and has a considerable application prospect in the field of flexible wearable electronic equipment.

Description

technical field [0001] The invention relates to a multifunctional superhydrophobic conductive composite material and a preparation method thereof, belonging to the technical field of preparation of functional polymer composite materials. Background technique [0002] Superhydrophobic materials are widely used in related fields such as surface waterproofing, self-cleaning, and oil-water separation because of their ability to resist moisture and self-cleaning. Preparation of superhydrophobic surfaces usually requires increasing surface roughness and reducing surface energy. Strain sensors based on superhydrophobic conductive composites can be used to detect the health status and motion of the body, and have great application prospects in the field of flexible electronic devices. However, in the traditional process of preparing conductive composite materials, the dispersion of conductive fillers is difficult and the interface interaction is small, so it is not easy to form a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83C08J9/40G01B7/16D06M101/32C08L75/04
CPCD06M11/83C08J9/40G01B7/16D06M2101/32C08J2375/04
Inventor 高杰峰吴利胜张维妙李奕瑶骆俊晨
Owner YANGZHOU UNIV
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