Polymer-based high energy storage density material and preparing method thereof

A high energy storage density, polymer technology, applied in the direction of fixed capacitor dielectric, fixed capacitor parts, etc., can solve the problems of composite material loss, leakage conduction increase, breakdown field strength decrease, etc., to achieve good surface modification, Low density, easy processing effect
CN101323692AInactive Publication Date: 2008-12-17TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2008-12-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a polymer-based material with high density of energy storage and a preparation method thereof, pertaining to the technical field of the preparation of dielectric materials and energy storage materials. The polymer-based material with high density of energy storage comprises carbon nanotube materials and polymer matrix materials which are modified with organics by a chemical method in the proportions of 3 wt percent to 10 wt percent, and has the effects of good compatibility with the matrix, reduction in the leakage current density of the materials and dielectric loss and improvement of the dielectric constant and the breakdown field strength of the materials. The matrix material is polystyrene which is dissolved with ethyl acetate and then blended with modified carbon nanotube solution; the solution is then cast into a mould and the mould is formed by hot pressing and shaped by cold pressing. The polymer-based material with high density of energy storage of the invention is characterized by good insulation, low density, excellent toughness, low cost and easy processing, and can be applied to dielectric materials of electronic devices of information technologies, dielectric projects, electrostatic storage and capacitors.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of dielectric materials and energy storage materials, in particular to a polymer-based material with high energy storage density and a preparation method thereof, in particular to a nanocomposite with high energy storage density containing modified carbon nanotubes The material has good insulation, low density, good flexibility, low cost and easy processing, and can be applied to information technology electronic devices, dielectric engineering, electrostatic energy storage and capacitor dielectric materials. Background technique

[0002] The rapid development of information technology has made electronic devices move towards the direction of "micro, small and light", and the preparation of capacitors with high energy storage density will be one of the effective ways to reduce the volume, quality and cost of electronic devices. Polymer-based composites are highly regarded in modern electronics...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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