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Vacuum plating under-coating paint as well as application and preparation method of vacuum platable hard thin film for IML prepared from vacuum plating under-coating paint

A vacuum plating and coating technology, which is applied in the field of coatings and thin films, can solve the problems of high production cost and large amount of coating, and achieve the effects of reducing raw material costs, reducing coating consumption, and excellent adhesion

Inactive Publication Date: 2015-03-04
GUANGZHOU HUMAN ENG MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current vacuum primer coatings are not used for PET substrates, and the spraying process requires a large amount of coatings and high production costs. However, the surface of PET substrates has good flatness, and only a thin coating is required to ensure that the surface of the substrate is smooth and smooth. Maintains excellent adhesion to metal plating

Method used

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  • Vacuum plating under-coating paint as well as application and preparation method of vacuum platable hard thin film for IML prepared from vacuum plating under-coating paint
  • Vacuum plating under-coating paint as well as application and preparation method of vacuum platable hard thin film for IML prepared from vacuum plating under-coating paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of Vacuum Primer Coatings for IML:

[0036] (1) Mix 50g of organic solvent (acetone / butyl acetate=1:1), 10g of reactive diluent (DSM AgiSyn2836), and 2g of leveling agent (BYK-352);

[0037] (2) Add 25g urethane acrylate (Dainippon Ink Chemical UA-711BT-1 / Changxing Chemical 6195-100=2: 1), 6g epoxy acrylate (cyanate EB3300) to the mixture obtained in step (1), 5g modified acrylate (BASF PA9083), high-speed stirring to disperse evenly;

[0038] (3) Add 2g photoinitiator (Ciba Darocur 1173 / BASF Lucirin TPO=2: 1) in the mixture that step (2) obtains, disperse evenly, filter, obtain the vacuum-plating primer coating that is used for PET substrate .

Embodiment 2

[0040] Preparation of Vacuum Primer Coatings for IML:

[0041] (1) Mix 70g of organic solvent (ethyl acetate / methyl isobutyl ketone=1:1), 5g of reactive diluent (Eternal Chemical EM231), and 0.5g of leveling agent (BYK-358N);

[0042] (2) Add 10g polyurethane acrylate (Bayer XP2491 / Cytec EB1290N=3:2), 8g epoxy acrylate (Changxing Chemical DR-G991), 5g modified acrylate (Changxing Chemical) to the mixture obtained in step (1). Chemistry 6071-2), high-speed stirring to disperse evenly;

[0043] (3) Add 1 g of photoinitiator (BASF Irgacure 184 / BASF Irgacure 907=2:1) ​​to the mixture obtained in step (2), disperse evenly, and filter to obtain a vacuum primer coating for PET substrates.

Embodiment 3

[0045] Preparation of Vacuum Primer Coatings for IML:

[0046] (1) Mix 60g of organic solvent (butanone / butyl acetate=2:1), 8g of reactive diluent (Eternal Chemical EM235), and 1g of leveling agent (Dego FLow370);

[0047] (2) Add 15g polyurethane acrylate (Changxing Chemical DR-U150 / Cytec EB8602=2:1), 5g epoxy acrylate (Cytec EB3703), 10g modified acrylate ( Changxing Chemical 6070), high-speed stirring to disperse evenly;

[0048] (3) Add 1.5g photoinitiator (BASF Irgacure 184 / BASF Lucirin TPO=2:1) ​​to the mixture obtained in step (2), disperse evenly, and filter to obtain a vacuum primer coating for PET substrates.

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Abstract

The invention discloses a vacuum plating under-coating paint as well as a preparation method and an application of a vacuum platable PET hard thin film for IML. The vacuum plating under-coating paint is prepared from the following components: 10-30 parts of polyurethane acrylate, 5-10 parts of epoxy acrylate, 5-10 parts of modified acrylate, 0.5-2 parts of flatting agent, 1-2 parts of photoinitiator and 50-70 parts of organic solvent. The vacuum plating under-coating paint for a PET substrate is produced by evenly mixing a reactive diluent, the flatting agent and the organic solvent together, next, adding the polyurethane acrylate, the epoxy acrylate and the modified acrylate and mixing evenly, and then adding the photoinitiator at the final stage for dispersing evenly; the vacuum plating under-coating paint is applicable to preparing the vacuum platable PET hard thin film for the IML; the cost can be effectively reduced; the obtained vacuum platable PET hard thin film for the IML has certain forming tensile properties, and the outer layer of the hard thin film has high hardness and high wear resistance, while the inner layer of the same has excellent adhesion to a metal coating and a screen printing ink layer, and furthermore, the metal coating is excellent in glossiness.

Description

technical field [0001] The invention relates to a coating, in particular to a UV light-curing vacuum primer coating for PET substrates and a preparation method and application thereof. [0002] The invention relates to a film, in particular to a vacuum hardened film for IML technology prepared by coating the above coating on a PET base material. Background technique [0003] The salient features of the in-mold insert molding (IML) process are: the surface hardened film has outstanding wear resistance, and the printing layer is sandwiched in the middle, which can prevent the surface of the product from being scratched, and can keep the bright color for a long time and is not easy to fade. With the increasingly thinner and thinner consumer electronic products, the many advantages of IML technology make it especially suitable for 3C, home appliances, auto parts and other plastic products, especially the currently popular mobile phone casings and instruments and operation panels...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D163/10C09D133/00C08J7/04C08L67/02
CPCC08J7/0427C08J2367/02C08J2475/14C08L2205/025C08L2205/035C09D5/002C09D7/63C09D175/14C08L75/14C08L63/10C08L33/04C08K5/101
Inventor 陈勇路芳申超王杨勇董步坛
Owner GUANGZHOU HUMAN ENG MATERIAL
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