Preparation method of crosslinked nano-cellulose/hexagonal boron nitride nanosheet composite film

A technology of nanocellulose and hexagonal boron nitride, which is applied in the field of preparation of cross-linked nanocellulose/hexagonal boron nitride nanosheet composite films, can solve the problems of structural defects and large gaps of composite layers, and achieves increased density, High breakdown strength, the effect of increasing the density
CN107840979AActive Publication Date: 2018-03-27WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2018-03-27

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Abstract

The invention discloses a preparation method of a crosslinked nano-cellulose / hexagonal boron nitride nanosheet composite film. The composite film is prepared by the steps of compositing nano-cellulosewith diameter of 2nm-20nm and length of 100nm-5micron with a hexagonal boron nitride nanosheet with excellent dielectric property, and soaking into a polyvalent metal salt solution. The composite film provided by the invention has relatively low dielectric loss and relatively high disruptive strength, energy storage density and energy storage efficiency. Besides, the composite film further has agood stratified structure, and the thermal stability of the composite film is remarkably improved after crosslinking. The composite film has wide and highly-potential application prospects in the application of dielectric energy storage.
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Description

technical field

[0001] The invention belongs to the technical field of composite materials, and in particular relates to a preparation method of a crosslinked nanocellulose / hexagonal boron nitride nanosheet composite film. Background technique

[0002] Cellulose is the most abundant natural polymer in nature, which provides a wide range of sources for the acquisition of nanocellulose, and also makes nanocellulose have the advantages of low cost and large output; in addition, the nanocellulose membrane is flexible and transparent. With high light efficiency and good compactness, it is an ideal material as a substrate for energy storage materials. At present, the raw materials for the preparation of nanocellulose are mainly plants, and the natural cellulose in higher plants is wrapped in the plant cell wall and has intricate connections with the cell wall, which makes it difficult to peel off the cellulose. , have found a variety of methods for the preparation of nanocellulos...

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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