Electrical device having PTC conductive polymer

An electronic component, conductive polymer technology, applied in the field of electronic components with PTC conductive polymer, can solve problems such as uneven thickness

Inactive Publication Date: 2005-07-13
LG CABLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, conventional electrodes made by electrolytic plating or electrodeposition exhibit thickness non-uniformity, which can lead to phase separation of the electrode from the PTC polymer

Method used

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  • Electrical device having PTC conductive polymer
  • Electrical device having PTC conductive polymer
  • Electrical device having PTC conductive polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The PTC conductive polymer is prepared by mixing polyethylene and carbon black. The surface roughness of an electroplated copper foil is controlled between 5 and 10 μm by electrolytic plating. Then, an electroless nickel metal-plating process with a thickness of 1 μm was formed on the electroplated copper foil through a degreasing process, a pickling process, a driving process, a photosensitive treatment process, an electroless nickel metal-plating process, and a rinsing process. layers to make electrodes. The electrodes are welded on both sides of the PTC conductive polymer similar to a sandwich, resulting in image 3 electronics shown.

Embodiment 2

[0030] The PTC conductive polymer is prepared by mixing polyethylene and carbon black. The surface roughness of an electroplated copper foil is controlled between 5 and 10 μm by electrolytic plating. Then, an electroless nickel metal-plating process with a thickness of 10 μm was formed on the electroplated copper foil through a degreasing process, a pickling process, a driving process, a photosensitive treatment process, an electroless nickel metal-plating process, and a rinsing process. layers to make electrodes. The electrodes are welded on both sides of the PTC conductive polymer similar to a sandwich, resulting in image 3 electronics shown.

Embodiment 3

[0032] An electronic device was produced in the same manner as in Example 1. However, the drive and photosensitive treatment processes are removed during the electroless-plating process, and the electroless nickel metal-plating process is carried out following the pickling process. Chromium metal is then overlaid on the electroless nickel metal-plated layer by displacement plating in a chromium bath.

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Abstract

An electrical device having PTC conductive polymer is made by combining electrodes, in which electroless nickel plating is formed on an electrolytic copper foil, with PTC conductive polymer. The electrodes have electroless-plated nickel layers at both sides of an electrolytic copper foil and the PTC conductive polymer is welded between the electrodes in a sandwich type.Because the electroless-plated nickel of the electrical device has even thickness, the electrical device gives improved PTC characteristics and good chemical and mechanical binding capacity between the electrodes and the PTC conductive polymer.

Description

technical field [0001] The present invention relates to an electronic component with a positive temperature coefficient (positive temperature coefficient, referred to as PTC) conductive polymer, in particular to an electrode that forms an electroless nickel layer (electroless nickel polymer) on an electrolytic copper foil and a PTC conductive Conductive polymer electronic components manufactured by polymer bonding method, using PTC conductive polymer, ensure to improve the properties of PTC and obtain good chemical and mechanical bonding ability between electrodes and PTC conductive polymer. Background technique [0002] There are many electronic components with PTC conductive polymers in the related prior art. The conductive polymer exhibits the PTC properties of a conductive filler dispersed on an organic polymer. [0003] PTC means a property in which a resistance value rapidly increases due to a temperature increase within a relatively small temperature range. High-mol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/14C23C18/31C23C18/32H01C1/14H01C7/02H05B3/10
CPCH01C1/1406H01C7/027H05B3/146H05B2203/02
Inventor 崔水安李钟昊崔淌熙金泰成
Owner LG CABLE INC
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