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Carbon element crystal heating plate and preparation method thereof

A technology of carbon crystals and heating plates, applied in chemical instruments and methods, electric heating devices, heating element materials, etc., can solve the problems of unimproved far-infrared radiation performance, environmental pollution, etc., and achieve high conversion efficiency of electric heat radiation, durable Strong acid and alkali corrosion ability and improved stability

Inactive Publication Date: 2009-01-14
朱思银 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, because xylene and acetone solvents are used in the production, it is easy to cause environmental pollution; in addition, this method only processes the carbon fiber (acrylcyano) by purification, ball milling, etc., and its far-infrared radiation performance has not been improved.

Method used

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  • Carbon element crystal heating plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Preparation of carbon crystal heating powder: first soak the chopped bamboo carbon fiber with a length of 1-2mm in tetrachlorethylene solvent for 2 hours, then dry it at 150°C, and then grind it to 2-3um powder, and finally bamboo carbon fiber powder, ceramic crystals with a particle size of 1-2um and Nb 2 o 5 : Y 2 o 3 The rare earth oxide modifier composed of 4:1 was mixed in a vacuum mixer for 5 hours according to the ratio of 1:2:0.01 to obtain carbon crystal powder;

[0021] (2) Preparation of epoxy resin tape:

[0022] Use flame-retardant epoxy resin (EX-48) and non-alkali glass fiber cloth (electronic grade), and make flame-retardant and insulating epoxy resin tape on the dipping machine;

[0023] (3) Preparation of carbon crystal heating plate:

[0024] ① Put a layer of aluminum foil on the lower metal mold plate as a metal reflective film;

[0025] ②Lay 3 layers of epoxy resin tape on the metal reflective film as the bottom layer of the epoxy resin ta...

Embodiment 2

[0031] (1) Preparation of carbon crystal heating powder: first soak the chopped bamboo carbon fiber with a length of 3-5mm in tetrachlorethylene solvent for 3 hours, then dry it at 200°C, and grind it to 4-5um powder, and finally bamboo carbon fiber powder, ceramic crystals with a particle size of 2-3um and Nb 2 o 5 : Y 2 o 3 The rare earth oxide modifier composed of 4:1 was placed in a vacuum mixer and mixed for 10 hours according to the ratio of 1:5:0.05 to obtain carbon crystal powder;

[0032] (2) Preparation of epoxy resin tape:

[0033] With embodiment 1;

[0034] (3) Preparation of carbon crystal heating plate:

[0035] ① Put a layer of aluminum foil on the lower metal mold plate as a metal reflective film;

[0036] ② Spread 6 layers of epoxy resin tape on the metal reflective film as the bottom layer of epoxy resin tape, then brush a layer of epoxy resin adhesive, and then spread a thin layer of kraft paper as the kraft paper layer;

[0037] ③ Spray a layer of 0...

Embodiment 3

[0042](1) Preparation of carbon crystal heating powder: first soak the chopped bamboo carbon fiber with a length of 2-4mm in tetrachlorethylene solvent for 2.5 hours, then dry it at 180°C, and then grind it to 2-4um powder, and finally bamboo carbon fiber powder, ceramic crystals with a particle size of 2-3um and Nb 2 o 5 : Y 2 o 3 The rare earth oxide modifier composed of 4:1 is placed in a vacuum mixer for 7 hours according to the ratio of 1:3:0.03, and the carbon crystal powder is obtained;

[0043] (2) Preparation of epoxy resin tape:

[0044] With embodiment 1;

[0045] (3) Preparation of carbon crystal heating plate:

[0046] ① Put a layer of aluminum foil on the lower metal mold plate as a metal reflective film;

[0047] ②Lay 5 layers of epoxy resin tape on the metal reflective film as the bottom layer of epoxy resin tape, then brush a layer of epoxy resin adhesive, and then spread a thin layer of kraft paper as the kraft paper layer;

[0048] ③ Spray a layer of ...

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Abstract

The invention discloses a carbon crystal calorific plate and the preparation method thereof, especially a carbon crystal calorific plate used for floor heating and preparation thereof. The calorific plate consists of a reflective metal coating, an epoxy resin proof fabric bottom, a kraft paper layer, a carbon crystal powder layer, a copper sheet electrode, an epoxy resin proof fabric layer, a decorative paper layer and a polyester film. The preparation method of the calorific plate comprises the preparation methods of the carbon crystal powder, the epoxy resin proof fabric and the carbon crystal calorific plate. The calorific plate in the invention has the advantages of strong far-infrared radiation, high electricity-heat radiation conversion efficiency, small surface temperature difference and strong acid / alkali / corrosion proof ability, and can be applied in the hidden project like floor heating safely.

Description

Technical field: [0001] The invention relates to a carbon crystal heating plate and a preparation method thereof, in particular to a carbon crystal heating plate for floor heating and a preparation method thereof. Background technique: [0002] Carbon fiber is a high-carbon fiber material formed by carbonizing the base material at a high temperature of 1000°C. It is an inorganic conductive material with light weight, good electrical and thermal conductivity, anti-oxidation (long-term use in air at <300°C), and high electrothermal conversion efficiency. , Small thermal inertia, small temperature coefficient of resistance, small power attenuation and so on. Therefore, in recent years, carbon fiber electric heating panels made of chopped carbon fiber as the heating medium have been widely used in civil floor heating. When used in concealed projects such as under cement, there are major safety hazards. In order to solve defects such as electric leakage, CN200610026524.3 pat...

Claims

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Application Information

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IPC IPC(8): H05B3/14H05B3/28B32B27/10B32B9/00B32B15/08B32B37/02
Inventor 朱思银孙同文刘翠萍
Owner 朱思银
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