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Method for preparing huge dual-side flexible aluminum foil by spraying compound solution through atomizing and powder-spraying device

A compound solution and powder spreading device technology, which is applied in the direction of solid-state chemical plating, metal material coating technology, coating, etc., can solve the problems of difficult control of processing uniformity and restrictions on the application of PTC materials, so as to improve production efficiency and excellent Product rate, strong consistency of product thickness, and simple processing

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

AI Technical Summary

Problems solved by technology

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

Method used

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  • Method for preparing huge dual-side flexible aluminum foil by spraying compound solution through atomizing and powder-spraying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 所示,本实施例雾化撒粉装置喷撒复合溶液制备巨幅双面挠性铝箔的方法,包括以下步骤:(1)制备复合溶液:取氨基丙烷93g,溶于1000g甲基酰胺中制备溶液,该溶液用水浴冷却,氮气保护下依次加入联苯酸酐73.7g,将混合液恢复到室温,持续搅拌3小时,进行聚合反应,得到粘稠的热塑性聚酰亚胺树脂前驱体溶液,将140g碳纤维添加到以上溶液中在超声波中超声并搅拌两小时,制得复合溶液,(2)将厚度为5μm的电解铝箔经放卷装置1放出,通过加热装置2将放出的电解铝箔加热至100°C,在幅宽1.3米,长16米的雾化撒粉装置3上,以50米 / 分钟的速度连续喷撒600米,通过雾化撒粉装置上设置的流量控制阀4控制复合溶液的流量,使固化的涂布层厚度为2.5μm,经冷却装置5冷却,然后进入收卷装置6,完成聚酰亚胺树脂复合PTC的溶液在电解铝箔上的双面喷涂;(3)将收卷装置中的电解铝箔卷取出装在50米长的龙窑中,依次经历160℃,200℃,250℃,300℃, 350℃进行加热,每个温度区各10分钟,完成亚酰胺化,经紫外光交联反应制得卷装600米长,幅宽1.3米,厚度为10μm的巨幅双面挠性电解铝箔。

Embodiment 2

[0024] 本实施例雾化撒粉装置喷撒复合溶液制备巨幅双面挠性铝箔的方法,包括以下步骤:(1)制备复合溶液:取氨基丙烷93g,溶于1000g甲基酰胺中制备溶液,该溶液用水浴冷却,氮气保护下依次加入联苯酸酐73.7g,将混合液恢复到室温,持续搅拌3小时,进行聚合反应,得到粘稠的热塑性聚酰亚胺树脂前驱体溶液,将140g炭黑添加到以上溶液中在超声波中超声并搅拌两小时,制得复合涂布液,(2)将厚度为3μm的电解铝箔经放卷装置放出,通过加热装置将放出的电解铝箔加热至150°C,在幅宽1.3米,长16米的等离子涂布机上,以50米 / 分钟的速度连续喷撒600米,通过雾化撒粉装置上设置的流量控制阀控制复合溶液的流量,使固化的涂布层厚度为1μm,经冷却装置冷却,然后进入收卷装置,完成聚酰亚胺树脂复合PTC液体在电解铝箔上的双面喷涂;(3)将收卷装置中的电解铝箔卷取出装在50米长的龙窑中,依次经历160℃, 200℃, 250℃, 300℃, 350℃进行加热,每个温度区各1分钟,完成亚酰胺化,经紫外光交联反应制得卷装600米长,幅宽1.3米,厚度为5μm的巨幅双面挠性电解铝箔。

Embodiment 3

[0026] 本实施例雾化撒粉装置喷撒复合溶液制备巨幅双面挠性铝箔的方法,包括以下步骤:(1)制备复合溶液:取氨基丙烷93g,溶于1000g甲基酰胺中制备溶液,该溶液用水浴冷却,氮气保护下依次加入联苯酸酐73.7g,将混合液恢复到室温,持续搅拌3小时,进行聚合反应,得到粘稠的热塑性聚酰亚胺树脂前驱体溶液,将100g石墨片添加到以上溶液中在超声波中超声并搅拌两小时,制得复合溶液,(2)将厚度为70μm的热压铝箔经放卷装置放出,通过加热装置将放出的热压铝箔加热至250°C,在幅宽1.3米,长16米的雾化撒粉装置上,以50米 / 分钟的速度连续喷撒600米,通过雾化撒粉装置上设置的流量控制阀控制复合溶液的流量,使固化的涂布层厚度为10μm,经冷却装置冷却,然后进入收卷装置,完成聚酰亚胺树脂复合PTC液体在热压铝箔上的双面喷涂;(3)将收卷装置中的热压铝箔卷取出装在50米长的龙窑中,依次经历160℃, 200℃, 250℃, 300℃, 350℃进行加热,每个温度区各20分钟,完成亚酰胺化,经红外交联反应制得卷装600米长,幅宽1.3米,厚度为90μm的巨幅双面挠性热压铝箔。

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Abstract

The invention discloses a method for preparing a huge dual-side flexible aluminum foil by spraying a compound solution through an atomizing and powder-spraying device. The method comprises the following steps: (1) preparing a compound liquid: dissolving a monomer of polyimide resin to obtain a polyimide resin solution, adding PTC (Positive Temperature Coefficient) powder into the polyimide resin solution, and mixing uniformly; (2) heating the aluminum foil to 100-400 DEG C through a heating device, and spraying the compound solution prepared in the step (1) onto the aluminum foil by using the atomizing and powder-spraying device to form a coating of polyimide resin compound PTC liquid; (3) baking the aluminum foil onto which the polyimide resin compound PTC liquid coating is sprayed in the step (2), and performing a cross-linking reaction to obtain the huge dual-side flexible aluminum foil. Compared with the prior art, the method has the advantages that the machining process is simple and convenient, the production efficiency and yield are increased, the thickness consistence of a product is high, and the prepared huge dual-side flexible aluminum foil is high in reliability, quick and accurate in the thermosensitive reaction, and convenient for adjusting the volume.

Description

technical field [0001] The invention relates to a method for preparing a double-sided flexible aluminum foil, in particular to a method for preparing a huge double-sided flexible aluminum foil by spraying a composite solution with an atomizing 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 develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C20/08
Inventor 张迎晨吴红艳
Owner ZHONGYUAN ENGINEERING COLLEGE
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