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Polymer heating plate and preparation method thereof

A technology of polymer and plate, applied in the field of polymer heating plate and its preparation, can solve the problems of graphene oxide's poor electrical conductivity, poor thermal conductivity, difficult polymer compatibility, easy stacking and agglomeration, etc., and achieves improved electrothermal conversion efficiency, Improve mechanical properties and thermal conductivity, good heat uniformity

Pending Publication Date: 2022-04-15
HANGZHOU ANYU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the insolubility and infusibility of graphene itself, easy stacking and agglomeration, and difficult processing operations have largely limited its application in composite materials and other devices.
Although graphene oxide has been oxidized, various oxygen-containing groups have been attached to the surface, which improves the solubility of graphene, but it can only be dissolved in hydrophilic media, and it is difficult to be compatible with many polymers.
Moreover, the electrical and thermal conductivity of graphene oxide is poor, so it is not suitable for the preparation of conductive and thermal composite materials.

Method used

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  • Polymer heating plate and preparation method thereof
  • Polymer heating plate and preparation method thereof
  • Polymer heating plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of functionalized graphene:

[0031] Dry graphene oxide is added into anhydrous DMF (solid-to-liquid ratio is 5.7mg: 1mL) and ultrasonically dispersed to obtain a stable dispersion; 3,4-difluoro-trans-styrene isocyanate (with the mass of graphene oxide The ratio is 5.1:1) and DBTDL (the solid-to-liquid ratio of graphene oxide and DBTDL is 1.3g:1mL) were dissolved in DMF, added to the above graphene oxide dispersion, and the mixture was stirred at 55°C for 20h under nitrogen protection; After the end, dimethylhydrazine (the solid-to-liquid ratio of graphene oxide and dimethylhydrazine is 0.39g:1mL) was added to the mixture, stored at 83°C for 15h, and then continuously stirred and refluxed at 150°C for 2h. After the reaction was completed, it was filtered with suction, washed with DMF and acetone for 6 times, and dried in vacuum to obtain functionalized graphene.

[0032] Preparation of polymer heating plate:

[0033] Dissolve functionalized graphene (funct...

Embodiment 2

[0035] The difference between the preparation of functionalized graphene and Example 1 is that the mass ratio of 3,4-difluoro-trans-styrene isocyanate to graphene oxide is 4.9:1.

[0036] The difference between the preparation of the polymer heating plate and that of Example 1 is that the addition amount of functionalized graphene is 2.9 wt%.

Embodiment 3

[0038] The difference between the preparation of functionalized graphene and Example 1 is that the mass ratio of 3,4-difluoro-trans-styrene isocyanate to graphene oxide is 5.2:1.

[0039] The difference between the preparation of the polymer heating plate and that of Example 1 is that the addition amount of functionalized graphene is 4.1wt%.

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Abstract

The invention discloses a macromolecular heating plate and a preparation method thereof, and relates to the technical field of heating materials. The high-molecular heating plate comprises a framework material and a conductive filler, the framework material comprises polyacrylate; the conductive filler is prepared from 3, 4-difluoro-trans-styrene isocyanate functionalized graphene, and the conductive filler is prepared from the 3, 4-difluoro-trans-styrene isocyanate functionalized graphene. The high-molecular heating plate prepared by the invention has excellent electrical conductivity and thermal conductivity, high electrothermal conversion efficiency and good heating uniformity; and the mechanical property and the thermal stability of the plate are effectively enhanced.

Description

technical field [0001] The invention belongs to the technical field of heating materials, and in particular relates to a polymer heating plate and a preparation method thereof. Background technique [0002] The heating plate is a safe and reliable electric heating plate that generates heat without electricity and no open flame after being energized. It has a high thermal efficiency because it mainly relies on heat conduction when used. But at present, the heating wire of the general heating board is exposed, which has potential safety hazards, and the import cost is high. In addition, the traditional heating board has uneven heat dissipation, resulting in low heating efficiency. [0003] Graphene's unique physical and chemical structure endows it with superior performance: ultra-high Young's modulus and strength, excellent electrical and thermal conductivity, huge specific surface area and good gas barrier properties, making graphene nanocomposites in performance It shows a...

Claims

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Application Information

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IPC IPC(8): C08L33/12C08L39/04C08K9/04C08K3/04C08J5/18C08F226/06C08F220/14
Inventor 章贤骏雷诺成宣兆康蔡成斌
Owner HANGZHOU ANYU TECH CO LTD