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Coating for electronic product shell, and preparation method and application thereof

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

Active Publication Date: 2020-08-21
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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  • Coating for electronic product shell, and preparation method and application thereof
  • Coating for electronic product shell, and preparation method and application thereof
  • Coating for electronic product shell, and preparation method and application thereof

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 an electronic product shell, and a preparation method and application thereof. The coating for the electronic product shell is mainly prepared from the followingeffective raw material components: a component A comprising, by weight, 33-37% of polyester resin, 15-25% of butyl acetate, 13-17% of hydroxy acrylic resin, 4-6% of polycarbonate diol, 4.5-5.5% of anorganic silicon surface additive, 7-13% of methyl isobutyl ketone, 3-7% of diacetone alcohol and 3-7% of ethyl acetate; and a component B being a curing agent HDI tripolymer; and the component B accounts for 8-12% of the total weight of the component A. The coating for the electronic product shell is a two-component spraying oily coating, has the advantages of high light transmittance, adjustablecolor, easiness in processing, boiling resistance and no influence on post-processing procedures, and is particularly suitable for electronic product shells, particularly mobile phone shells and mobile phone battery rear cover plates, and particularly products with embossing texture requirements on mobile phone battery rear covers.

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 Applications(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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