Novel carbon fiber composite electric heating film and preparation method thereof

A carbon fiber and electric heating film technology, applied in the field of new carbon fiber composite electric heating film and its preparation, can solve the problems of polluted environment, difficult to measure heat supply, short service life, etc., and achieve the effects of simple preparation process, less energy loss and low cost

Inactive Publication Date: 2011-07-13
ANHUI UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous development of the national economy and modernization, the system is increasingly exposed to some disadvantages. First, it is a waste of energy and resources, such as coal resources, water resources and heat energy lost in the transmission process.
followed by polluting the environment
The third is that heat supply is difficult to measure and heat supply fee collection is difficult
Carbon fiber far-infrared electric heating film Compared with the conventional radiator heating mainly based on convection heat dissipation, the floor radiation heating system with carbon fiber as the heating element has unique characteristics such as uniform indoor temperature distribution, good comfort, cleanliness, energy saving and convenient measurement. Advantages, there are also thermal insulation products using carbon fiber electric heating film on the market, but these products have problems such as low electrothermal conversion efficiency, unsatisfactory heat transfer efficiency, short service life, and potential safety hazards.

Method used

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  • Novel carbon fiber composite electric heating film and preparation method thereof
  • Novel carbon fiber composite electric heating film and preparation method thereof
  • Novel carbon fiber composite electric heating film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The novel carbon fiber composite electrothermal film of this embodiment uses a carbon fiber weaving machine to weave polyacrylonitrile-based carbon fibers into a network structure layer, and connects metal electrodes at both ends; 3 N 4 The modified polycarbonate (PC) is melted, and the melted liquid is coated with a network structure layer by a film coating machine; after coating, it is solidified and shaped by a molding machine, and then dried by a dryer, which can be A new type of carbon fiber composite electrothermal film with a length of 560 mm, a width of 400 mm and a thickness of 0.7 mm was prepared.

[0023] The insulating and thermally conductive plastic used in this embodiment is Si 3 N 4 Modified polycarbonate, the composition of the insulating and heat-conducting plastic is as follows (by weight):

[0024] Polycarbonate 48%

[0025] Silicon nitride 40%

[0026] E-glass fiber 10%

[0027] Silane coupling agent 1%

[0028] Vinyl silicone oil 1%

...

Embodiment 2

[0034] The new carbon fiber composite electric heating film of this embodiment uses a carbon fiber weaving machine to weave polyacrylonitrile-based carbon fibers into a network structure layer, and connects metal electrodes at both ends; uses a hot melt machine to modify the insulating and heat-conducting plastic film, namely MgO The polyphenylene sulfide (PPS) is melted, and the molten liquid is coated with the mesh structure layer by a coating machine; after coating, it is shaped by a molding machine, and then dried by a dryer, and a length of 550mm can be obtained. , a new type of carbon fiber composite electric heating film with a width of 200mm and a thickness of 0.7mm.

[0035] The insulating and heat-conducting plastic used in this embodiment is MgO-modified polyphenylene sulfide, and the composition of the insulating and heat-conducting plastic is as follows (by weight):

[0036] Polyphenylene sulfide 20%

[0037] Magnesium Oxide 70%

[0038] E-glass fiber 5%

[003...

Embodiment 3

[0048] The novel carbon fiber composite electrothermal film of this embodiment uses a carbon fiber braiding machine to weave polyacrylonitrile-based carbon fibers into a network structure layer, and connects metal electrodes at both ends; 2 o 3 The modified polycarbonate (PC) is melted, and the molten liquid is coated with a network structure layer by a film coating machine; after coating, it is shaped by a molding machine, and then dried by a dryer to obtain A new type of carbon fiber composite electric heating film with a length of 550mm, a width of 400mm, and a thickness of 0.7mm.

[0049] The insulating and thermally conductive plastic used in this embodiment is Al 2o 3 Modified polycarbonate, the composition of the insulating and heat-conducting plastic is as follows (by weight):

[0050] Polycarbonate 52%

[0051] Alumina 35%

[0052] E-glass fiber 10%

[0053] Silane coupling agent 1%

[0054] Modified Ethylene Bis Fatty Acid Amide 1%

[0055] Stearate 1%

[00...

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PUM

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Abstract

The invention discloses a novel carbon fiber composite electric heating film which comprises a conductive carbon fiber layer, wherein the conductive carbon fiber layer is of a meshy structure weaved by carbon fibers, two ends of the conductive carbon fiber layer are connected with metal electrodes, and the conductive carbon fiber layer is entirely cladded by an insulated heat conduction plastic film to form a laminated structure. The carbon fiber electric heating film provided by the invention is resistant of high temperature and not easy to oxidize; and the outer-layer heat conduction plastic of the carbon fiber electric heating film is an insulated material and can resist high temperature of 300 DEG C and high voltage; and therefore, the carbon fiber electric heating film provided by the invention has extremely high safety and can be guaranteed to be used for over 50 years. The carbon fibers supply heat to the external environment in an infrared irradiation mode, is free of dust, noise, wastes and waste gases and is basically free of electromagnetic irradiation. The invention has the advantages of concise preparation process, low cost, energy source saving and eco-environmental protection and accords with the environment protection and energy source development directions.

Description

[0001] technical field [0002] The invention relates to a novel carbon fiber composite electrothermal film and a preparation method thereof. Background technique [0003] With the continuous improvement of people's living standards, people's requirements for the living environment must not only meet the basic living conditions, but also create a comfortable and comfortable living environment, thus putting forward higher requirements for the indoor environment. The environment meets the requirements of temperature, humidity, indoor wind speed, and pollutant concentration and is controlled within a certain range. At present, most domestic heating systems use fuel boilers as heat sources to produce low-temperature hot water, which is transported to indoor cooling equipment through outdoor pipe networks to form a heating system. With the continuous development of the national economy and modernization, the system is increasingly exposed to some disadvantages. First, it is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/34H05B3/10
Inventor 毕红薛祖彪徐怀良
Owner ANHUI UNIVERSITY
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