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Plastics and preparation method thereof

A technology for plastics and products, which is applied in the field of plastic products and its preparation, and can solve the problems of uneven surface, poor adhesion between the primer layer and the substrate, etc.

Inactive Publication Date: 2009-10-07
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the poor adhesion or poor surface of the primer layer and the base material of the plastic products of the base material such as nylon plus 50% glass fiber, polypropylene (PP) and polyethylene (PE). The shortcomings of flatness, provide a plastic product with excellent film adhesion and appearance performance and the preparation method of the product

Method used

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  • Plastics and preparation method thereof
  • Plastics and preparation method thereof

Examples

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preparation example Construction

[0020] The present invention provides a method for preparing plastic products, wherein the method includes sequentially forming a first metal layer 2 , a primer layer 3 , a second metal layer 4 and a topcoat layer 5 on the surface of a plastic substrate 1 .

[0021] Wherein, the coating composition used when forming the first metal layer 2, the primer layer 3, the second metal layer 4 and the top coat layer 5 and the thicknesses of the attached layers are all the same as described above, and will not be repeated here. repeat.

[0022] The method of forming the first metal layer 2 may be sputtering plating. The sputtering method is a technique of physical vapor deposition. Ion sputtering is to use the high-speed motion of positive ions generated by gas discharge to bombard the target as the cathode under the action of an electric field, so that the atoms or molecules in the target It escapes and precipitates on the surface of the substrate to be plated to form the required fil...

Embodiment 1

[0037] This example is used to prepare the plastic product A1 provided by the present invention, and to measure its adhesion and appearance.

[0038] (1) Clean nylon plus 50% glass fiber (EMS GV-5H) with ultrasonic waves (3-5KW, 1 hour), then scrub with white electric oil (Dongtai DT-618), and then use alcohol (concentration: 95%) )scrub.

[0039] (2) Use UHS-360B (manufacturer: UHS) sputtering coating equipment, in nitrogen at 270 cm 3 / second, the power is 4 kilowatts, and the coating time is 1 second to add a coating on the surface of nylon and 50% glass fiber, and the surface is coated with an aluminum metal layer with a thickness of 5 nanometers.

[0040] (3) Use Cashew Vm8000 as the primer coating, spray the primer coating on the aluminum metal layer obtained in the above step (2), and use 4 UV lamps with a power of 380 watts after preheating at a temperature of 45°C for 5 minutes. Cured by lamp irradiation, UV energy is 1200 mJ / cm 2 , a primer layer with a thickness...

Embodiment 2

[0047] This example is used to prepare the plastic product A2 provided by the present invention, and to measure its adhesion and appearance.

[0048] Plastic product A2 was prepared in the same manner as in Example 1, except that in step (2), zinc was used instead of aluminum to form a zinc metal layer with a thickness of 40 nanometers, and the intermediate paint layer was not formed.

[0049] The plastic product A2 was obtained, and its adhesion and appearance properties were measured in the same manner as in Example 1.

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Abstract

The invention relates to plastics and a preparation method thereof. The plastics comprises plastic base material (1), wherein a first metal layer (2), a base paint layer (3), a second metal layer (4) and a surface paint layer (5) are sequentially adhered on the surface of the plastic base material from inside to outside. The preparation method comprises the step of forming the first metal layer (2), the base paint layer (3), the second metal layer (4) and the surface paint layer (5) sequentially on the surface of the plastic base material (1). The plastics has best adhesive force and smooth metal mirror effect.

Description

technical field [0001] The invention relates to a plastic product and a preparation method thereof. Background technique [0002] At present, surface coating technology is used to treat the surface of plastic products, so that the surface has metallic luster and texture. Current surface coating technologies such as figure 1 As shown, the surface of the plastic product 6 is covered with a layer of primer layer 7 to improve the adhesion of the coating layer, and a layer of metal coating layer 8 is covered on the primer layer 7, and then coated on the metal coating layer 8. A topcoat layer 9 is applied, and in an optional situation, a middle paint layer can also be added between the metal coating layer and the topcoat layer, thereby improving the adhesion between the coating layer and the topcoat layer. The existence of the primer layer can provide the adhesion of the metal film layer, pave the surface of the substrate, make the metal film layer obtain a mirror effect, and pr...

Claims

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Application Information

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IPC IPC(8): B32B27/04B32B27/20B32B17/04B32B15/08B32B15/04C23C28/00C23C30/00B05D3/00B44C5/04
Inventor 徐敏徐鉴之马圣程锋
Owner BYD CO LTD
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