Method for preparing flexible double-sided aluminum foil by spraying polymer composite positive temperature coefficient (PTC) powder through powder spraying device

A powder spreading device and polymer technology, applied in the field of double-sided flexible aluminum foil preparation, can solve the problems of limiting the application of PTC materials and difficult control of processing uniformity, so as to improve production efficiency, high-quality product rate, and product thickness consistency Strong, easy capacity adjustment effect
CN103789762AInactive Publication Date: 2014-05-14ZHONGYUAN ENGINEERING COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHONGYUAN ENGINEERING COLLEGE
Publication Date
2014-05-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing flexible double-sided aluminum foil by spraying polymer composite positive temperature coefficient (PTC) powder through a powder spraying device. The method comprises the steps of (1) preparing the polymer composite PTC powder; (2) heating the aluminum foil to 160-450 DEG C by a heating device, and spraying the polymer composite PTC powder obtained in the step (1) onto the aluminum foil through the powder spraying device to form a polymer composite PTC powder coating on the aluminum foil; (3) baking the aluminum foil coated with the polymer composite PTC powder coating in the step (2), and carrying out a recrystallization technology to obtain the flexible double-sided aluminum foil. Compared with the prior art, the method is simple and convenient in processing process, improves the production efficiency and the yield, and is high in product thickness consistency; the prepared flexible double-sided PTC aluminum foil is high in quality reliability, rapid in speed of thermosensitive reaction, accurate and convenient in capacity adjustment.
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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 spraying polymer composite PTC powder with a powder spreading device. Background technique

[0002] With the rapid development of science and technology, the demand for functional aluminum foil 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 the role of supporting and interconnecting components in functional energy and electronic products. It is known as the "neural network" for signal and power transmission and communication of electronic products. As the basic material of the electronics industry, aluminum foil has been following the development of PCB technology, and PCB technology has been continuously improving with the rapid development of elec...

Claims

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