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Method for preparing double-face flexible aluminum foil by spraying macromolecular composite PTC (phenylthiocarbamide) powder body through plasmas

A plasma and polymer technology, applied in the field of double-sided flexible aluminum foil preparation, can solve the problems of restricting the application of PTC materials and difficult control of processing uniformity, so as to improve production efficiency, high-quality product rate, and strong product thickness consistency , accurate and convenient effect

Inactive Publication Date: 2014-05-14
ZHONGYUAN ENGINEERING COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Due to the characteristics of barium titanate ceramic materials, the processing of PTC materials is difficult to control the uniformity of traditional processing, which limits the application of PTC materials.
[0006] Due to the limitations of the traditional preparation of PTC components, PTC components and electrodes are processed separately, and then welded or glued to the plate to form a device, mainly small components, and there is no report on the processing of huge ultra-thin functional aluminum foil

Method used

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  • Method for preparing double-face flexible aluminum foil by spraying macromolecular composite PTC (phenylthiocarbamide) powder body through plasmas
  • Method for preparing double-face flexible aluminum foil by spraying macromolecular composite PTC (phenylthiocarbamide) powder body through plasmas

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Effect test

Embodiment 1

[0022] Such as figure 1 with figure 2 As shown, the method for preparing double-sided flexible aluminum foil by plasma spraying polymer composite PTC powder in this embodiment includes the following steps: (1) Take 100g of polyethylene and 100g of carbon black, and place them in a ball mill under the protection of nitrogen. Mix for 5 hours to obtain polymer composite PTC powder; (2) The electrolytic aluminum foil with a thickness of 5μm is discharged through the unwinding device 1, and the discharged electrolytic aluminum foil is heated to 100°C by the heating device 2, and the width is 1.3 meters. , The plasma coating machine 3 with a length of 5 meters is continuously coated for 600 meters at a speed of 50 meters per minute, and the coating thickness of the polymer composite PTC powder is controlled by the flow control valve 4 provided on the plasma coating machine. 2.5μm, it is cooled and crystallized by the cooling device 5, and then enters the winding device 6 to complete...

Embodiment 2

[0024] The method for preparing double-sided flexible aluminum foil by plasma spraying polymer composite PTC powder in this embodiment includes the following steps: (1) Take 10g of polypropylene and 100g of barium titanate powder, and put them in a three-screw blend under the protection of nitrogen. In the container, mix for 4 hours to obtain polymer composite PTC powder; (2) The electrolytic aluminum foil with a thickness of 3μm is discharged through the unwinding device, and the discharged electrolytic aluminum foil is heated to 220°C by the heating device, and the width is 1.3 The coating thickness of the polymer composite PTC powder is controlled by the flow control valve set on the plasma coating machine to a thickness of 1μm on a plasma coating machine with a length of 5 meters and a continuous coating speed of 50 meters per minute for 600 meters. The crystallization is cooled by the cooling device, and then enters the winding device to complete the double-sided plasma spr...

Embodiment 3

[0026] The method for preparing double-sided flexible aluminum foil by plasma spraying polymer composite PTC powder in this embodiment includes the following steps: (1) Take 50 g of polyimide and 100 g of barium titanate powder with a lead content of 0.3% by mass. Put it into a three-screw blending reactor under the protection of nitrogen and mix for 5 hours to obtain polymer composite PTC powder; (2) The hot-pressed aluminum foil with a thickness of 15μm is discharged through the unwinding device, and the heat released by the heating device The pressed aluminum foil is heated to 250°C, and it is continuously coated for 600 meters at a speed of 50 meters per minute on a plasma coater with a width of 1.3 meters and a length of 5 meters, and is controlled by a flow control valve set on the plasma coater The coating thickness of the polymer composite PTC powder is 2.5μm, and it is cooled and crystallized by the cooling device, and then enters the winding device to complete the doub...

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Abstract

The invention discloses a method for preparing double-face flexible aluminum foil by spraying macromolecular composite PTC (phenylthiocarbamide) powder body through plasmas. The method comprises the following steps of (1) preparing the macromolecular composite PTC powder body; (2) heating an aluminum foil to 100-300 DEG C through a heating device, coating the macromolecular composite PTC powder body prepared in the step (1) on the aluminum foil through plasma spraying equipment, thus forming a macromolecular composite PTC powder body coating layer on the aluminum foil; (3) baking the aluminum foil which is coated with the macromolecular composite PTC powder body coating layer in the step (2), and performing recrystalization technology to obtain the double-face flexible aluminum foil. Compared with the prior art, the method has the advantages that the working process is simple; the production efficiency and the yield can be improved, and the thickness consistency of a product is high; the quality and the reliability of the prepared double-face flexible PTC aluminum foil are high; the thermosensitive reaction is quick and accurate, and the capacity adjustment is facilitated.

Description

Technical field [0001] The invention relates to a method for preparing double-sided flexible aluminum foil, in particular to a method for preparing double-sided flexible aluminum foil by plasma spraying polymer composite PTC powder. Background technique [0002] With the rapid development of science and technology, the demand for functional aluminum foils in various industries, especially composite materials, electronic materials, and decorative materials, is increasing. Functional aluminum foil has now become a key material for PCBs that play a role in supporting and interconnecting components in functional energy and electronic products. It is hailed as a "neural network" for electronic product signal and power transmission and communication. As the basic material of the electronics industry, aluminum foil has been following the development of PCB technology, and PCB technology has been continuously improved with the rapid development of electronic products. The development of...

Claims

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Application Information

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IPC IPC(8): C23C4/04C23C4/12C23C4/18B22F1/00C23C4/134
Inventor 张迎晨
Owner ZHONGYUAN ENGINEERING COLLEGE
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