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Silica gel push-button material and preparation method thereof

A technology of silica gel and buttons, which is applied in polyurea/polyurethane coatings, telephone structures, and devices for coating liquid on the surface. It can solve the problems of uneven distribution of silver powder and easy falling off of silver powder, and achieve excellent metal texture and excellent metal texture. Textured appearance, the effect of uniform distribution of metal powder

Inactive Publication Date: 2008-03-05
BYD PRECISION MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art that the silver powder on the silica gel keypad is easy to fall off, resulting in uneven distribution of the silver powder, to provide a silica gel keypad material with uniform metal powder distribution and a preparation method thereof

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0014] According to the preparation method of the silicone keypad material provided by the present invention, wherein, the method for forming the polyurethane coating can be a conventional coating method, for example, by uniformly mixing the polyurethane coating with a solvent and then uniformly rolling or spraying it to a surface with or without a primer. The surface of a substrate for a paint, midcoat, or topcoat. The amount and kind of the solvent are known to those skilled in the art. The specific coating operation is well known to those skilled in the art and will not be repeated here.

[0015] According to one embodiment of the present invention, the silicone keypad material provided by the present invention may comprise the following steps:

[0016] (1) Preparation of polyurethane coating: uniformly mixing polyurethane coating and metal powder to obtain a polyurethane coating containing metal powder;

[0017] (2) Preparation of substrates with radium-engraved patterns...

Embodiment 1

[0024] This embodiment is used to illustrate the silicone keypad material provided by the present invention and its preparation method.

[0025] (1) Preparation of polyurethane coating: the JSP100-3 polyurethane coating (the content of solvent is 29% by weight) and the JSP100A-3 polyurethane coating (the content of solvent is 29% by weight) purchased from Dongguan Zhicheng Paint Co., Ltd. The silver powder of 5 microns is mixed evenly with the ratio of weight ratio 9000:1000:1, obtains the polyurethane coating that contains silver powder;

[0026] (2) Preparation of substrates with radium-engraved patterns on the surface: Spray 03070 silica gel white paint, 03072 silica gel black paint, and S-02148B silica gel silver black paint on the surface of the KE-971TU silica gel substrate purchased from Teijin Chemical Co., Ltd. as a primer layer, middle paint layer, and top paint layer; the thicknesses of the obtained primer layer, middle paint layer, and top paint layer are 9 microns...

Embodiment 2

[0029] This embodiment is used to illustrate the silicone keypad material provided by the present invention and its preparation method.

[0030] (1) The preparation of polyurethane coating: the JSP100 polyurethane coating (the content of solvent is 25% by weight) and the JSP100A polyurethane coating (the content of solvent is 25% by weight) purchased from Dongguan Zhicheng Paint Co., Ltd. and the silver powder of 8 microns with particle diameter Mix evenly with a ratio of 8000:1000:1 by weight to obtain a polyurethane coating containing silver powder;

[0031](2) Preparation of substrates with radium-engraved patterns on the surface: Spray 03070 silica gel white paint, 03072 silica gel black paint, and S-02148B silica gel silver black paint on the surface of the KE-971TU silica gel substrate purchased from Teijin Chemical Co., Ltd. as a primer layer, middle paint layer, and top paint layer; the thicknesses of the obtained primer layer, middle paint layer, and top paint layer a...

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Abstract

The silica gel material for button includes one base with laser carved pattern in the surface and one polyurethane coating, the base is of silica gel and the polyurethane coating has homogeneously dispersed metal powder. The silica gel material for button with homogeneously dispersed metal powder has high wear resistance and excellent metal texture.

Description

technical field [0001] The invention relates to a silicone button material and a preparation method thereof. Background technique [0002] With the development of the mobile phone industry, mobile phone buttons have also made great progress. The current mobile phone buttons mainly include silicone buttons, plastic+silicone (P+R) buttons, thermoplastic film (IMD) buttons and IMD+P+R buttons. Pure silicone buttons occupy a large market share in the current market due to their low cost. In order to meet the market demand and obtain a better appearance effect, the requirements for the appearance of the buttons are getting higher and higher, among which it is a very common requirement to require the surface of the buttons to have a metal texture. [0003] At present, the silicone button is mainly made through the following process: first, the silicone is formed into a shape that meets the requirements of the mobile phone, and then a layer of primer is sprayed on the silicone, fo...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/12B05D7/00H04M1/23
Inventor 杨显清王琳
Owner BYD PRECISION MFG