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A kind of coating for electronic product shell and its preparation method and application

A technology for electronic products and shells, which is applied in the field of coatings for electronic product shells and its preparation, can solve the problems of incompatibility of high factor value and high leveling property at the same time, and achieve excellent post-machinability, high leveling property, and high dyne value Effect

Active Publication Date: 2021-11-19
HUNAN SOKAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a coating for electronic product housing, the coating has both high factor value and high leveling property, so as to solve the technical problem in the prior art that high factor value and high leveling property cannot be achieved at the same time

Method used

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  • A kind of coating for electronic product shell and its preparation method and application
  • A kind of coating for electronic product shell and its preparation method and application
  • A kind of coating for electronic product shell and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The electronic product housing coating of the present embodiment comprises the effective raw material components of following weight ratio:

[0047]Component A: polyester resin 35%, butyl acetate 20%, hydroxyacrylic resin 15%, polycarbonate diol 5%, silicone surface additive 5%, methyl isobutyl ketone 10%, diacetone alcohol 5%, ethyl acetate 5%, the sum of the mass percentages of each raw material is 100%;

[0048] B component: curing agent HDI trimer;

[0049] Component B is 10% of the total weight of component A.

[0050] The polyester resin is a saturated polyester resin with a hydroxyl value of 25 mg KOH / g and a number average molecular weight Mn of 6000-7000. Studies have shown that a low hydroxyl value corresponds to a high molecular weight resin, on the contrary, a high hydroxyl value corresponds to a low molecular weight resin, but too high a molecular weight is not conducive to the leveling of the coating surface. The adhesion cannot be guaranteed; in this e...

Embodiment 2

[0065] The types and proportions of raw materials in this embodiment are listed in Table 2, and the performance test results after film formation are listed in Table 3. Unless otherwise stated, other conditions are the same as in Example 1.

[0066] figure 2 It is the rendering of the paint obtained in Example 2 of the present invention after adding pink colorant and applying it to the rear cover of the mobile phone case.

Embodiment 3

[0068] The types and proportions of raw materials in this embodiment are listed in Table 2, and the performance test results after film formation are listed in Table 3. Unless otherwise stated, other conditions are the same as in Example 1.

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Abstract

The invention discloses a coating for electronic product shells, a preparation method and application thereof. The coating for electronic product casing of the present invention mainly includes effective raw material components in the following weight ratio: Component A: polyester resin 33-37%, butyl acetate 15-25%, hydroxy acrylic resin 13-17%, poly Carbonate diol 4-6%, silicone surface additive 4.5-5.5%, methyl isobutyl ketone 7-13%, diacetone alcohol 3-7%, ethyl acetate 3-7%; component B: Curing agent HDI trimer; component B is 8-12% of the total weight of component A. The coating for electronic product casing obtained in the present invention is a two-component spraying oily coating, which has high light transmittance, color adjustment, easy processing, water boiling resistance, and does not affect post-processing procedures, and is especially suitable for electronic product casings, especially mobile phones. Shell and mobile phone battery back cover, especially on products with embossed texture requirements on the mobile phone battery back cover.

Description

technical field [0001] The invention relates to a paint and its preparation method and application, in particular to a paint for electronic product shells and its preparation method and application. Background technique [0002] With the development of society, electronic products are used more and more frequently. Mobile phones have become an indispensable part of our lives, and now people have higher and higher requirements on the appearance of electronic products, especially mobile phones. Initially, the raw material for the processing of mobile phone battery cover plates was aluminum alloy metal anodes. The disadvantage was that electromagnetic shielding affected signal reception and high processing costs; later, electronic product shells mostly used optical-grade plates, such as PMMA (polymethyl methacrylate) and PC ( Polycarbonate), which has a transparent imitation glass effect, can also achieve the effect of the 3D glass + Deco-film solution, and has the resistance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C08G18/79C08G18/62C08G18/44C08G18/42B05D7/24B05D7/02C08J7/04C08L33/12C08L69/00
CPCB05D7/02B05D7/24C08G18/4063C08G18/42C08G18/44C08G18/6229C08G18/792C08J2333/12C08J2369/00C08J2475/04C09D175/04C08J7/0427
Inventor 王成王卫国李平吕国强缪培凯凌云剑符饶生杨波
Owner HUNAN SOKAN NEW MATERIAL
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