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A kind of high-performance PVC anti-coating film for flexible circuit board and its preparation method and application

A flexible circuit board, high-performance technology, used in pressure-sensitive films/sheets, film/sheet release coatings, polymer adhesive additives, etc. and other problems, to achieve the effect of good solvent resistance and adherence, saving production costs and improving production efficiency

Active Publication Date: 2021-06-25
广东硕成科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the following disadvantages: 1) There are many supporting equipment, and the investment cost is large; 2) The production cycle is long and the production efficiency is low; 3) It needs to use strong acid and strong alkali compounds, which is difficult to recycle; 4) The quality risk is large, and the production process is prone to leakage. Quality abnormalities such as plating and stripping are not clean
Using dry film as the selection material of FPC, the realization of its function must go through processes such as film production, pretreatment, exposure, and development, so expensive supporting equipment is required, and the manufacturing process is complicated and cumbersome.

Method used

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  • A kind of high-performance PVC anti-coating film for flexible circuit board and its preparation method and application
  • A kind of high-performance PVC anti-coating film for flexible circuit board and its preparation method and application
  • A kind of high-performance PVC anti-coating film for flexible circuit board and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046](a) The preparation method of high-performance PVC anti-coating film is as follows:

[0047] (1) Mix the raw materials of the bottom coating according to the proportion, stir evenly, pour it into the bottom rubber tank, and use a 110-mesh anilox roller to coat the thickness of 75 microns and the hardness of 36 produced by Guangzhou Nanya Plastic Co., Ltd. On the blue PVC film, pass through an oven with a length of 4 meters and bake at 50°C for 12 seconds to form a primer layer of 0.3-0.5 microns.

[0048] The base coat is composed of the following components in parts by weight:

[0049] Solution polystyrene butadiene rubber 1205: 30 parts

[0050] Dibenzoyl peroxide: 0.8 parts

[0051] Toluene: 69.2 parts.

[0052] (2) Stir and mix the rubber-type pressure-sensitive adhesive layer raw materials in a closed stirring reaction kettle for 8 hours, pump it out after fully dissolving, filter it into the glue tank with a 100-mesh nylon filter, and apply it on the On the und...

Embodiment 2

[0062] (a) The preparation method of high-performance PVC anti-coating film is as follows:

[0063] (1) Mix the raw materials of the bottom coating according to the ratio, stir evenly, pour it into the bottom rubber tank, and use a 110-mesh anilox roller to coat the thickness of 70 microns produced by Guangzhou Nanya Plastic Co., Ltd., with a hardness of 34 On the blue PVC film, pass through an oven with a length of 4 meters, bake at 50°C for 12 seconds, and form a primer layer of 0.3-0.5 microns;

[0064] The base coat is composed of the following components in parts by weight:

[0065] Solution polystyrene butadiene rubber 1205: 30 parts

[0066] Dibenzoyl peroxide: 1 part

[0067] Toluene: 69.2 parts.

[0068] (2) Stir and mix the rubber-type pressure-sensitive adhesive layer raw materials in a closed stirring reaction kettle for 8 hours, pump it out after fully dissolving, filter it into the glue tank with a 100-mesh nylon filter, and apply it on the On the undercoat l...

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Abstract

The invention belongs to the field of protective films, and discloses a high-performance PVC anti-coating film for flexible circuit boards, a preparation method and application thereof. The high-performance PVC anti-coating film for the flexible circuit board is sequentially arranged as a release paper layer, a rubber-type pressure-sensitive adhesive layer, a primer layer and a PVC substrate layer from top to bottom. It can replace the traditional dry film process, simplify the operation process, improve production efficiency, save production costs, and avoid environmental pollution caused by the discharge of chemical reagents such as developer and release agent. At the same time, because the rubber pressure-sensitive adhesive layer of the PVC protective film involved in the present invention has the characteristics of acid and alkali resistance, controllable viscosity, and excellent temperature resistance, there will be no adverse phenomena such as seepage and residual glue, which obviously improves the quality of the product. Rate.

Description

technical field [0001] The invention belongs to the field of protective films, in particular to a high-performance PVC anti-coating film for flexible circuit boards, a preparation method and application thereof. Background technique [0002] With the rapid development of electronic technology, electronic products such as mobile phones, computers, digital cameras, and televisions are changing with each passing day. As the carrier of electronic components, circuit boards have developed in the direction of multi-function, large capacity, small volume, thinness, and light weight. Flexible circuit board (FPC) is usually a kind of flexible printed circuit board made of polyimide as the base material. Compared with ordinary rigid circuit board (PCB), it has high wiring density, light weight and thickness. The advantages of thinness and good bendability have been more and more widely used. When the FPC board is subjected to selective surface treatment (such as gold plating and gold...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/24C09J7/38C09J7/50C09D109/06C09D7/63C09J109/06C09J107/00C09J11/06C09J11/08
CPCC08L2201/08C08L2205/035C09D109/06C09J11/06C09J11/08C09J109/06C09J2203/326C09J2409/00C09J2409/003C09J2427/006C09J2301/122C09J2301/302C09J2301/408C08L7/00C08L93/04C08L61/06
Inventor 谢续兵柯跃虎宋亦健
Owner 广东硕成科技股份有限公司
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