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High-white-brightness strip-shaped aluminum pigment for ABS and preparation method thereof

A technology of aluminum pigment and brightness, which is applied in the field of strip aluminum pigment and its preparation, can solve the problems of poor white brightness and metal effect, and achieve the effects of improving compatibility, increasing added value, and increasing white brightness

Inactive Publication Date: 2021-06-18
安徽天易金属新材料有限公司
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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 provide a strip aluminum pigment for ABS with high white brightness and its preparation method, which solves the problem of poor white brightness and metallic effect when the existing strip aluminum pigment is applied in spray-free ABS

Method used

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  • High-white-brightness strip-shaped aluminum pigment for ABS and preparation method thereof
  • High-white-brightness strip-shaped aluminum pigment for ABS and preparation method thereof
  • High-white-brightness strip-shaped aluminum pigment for ABS and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation method for the strip aluminum pigment of ABS high white brightness, its step comprises:

[0026] Step 1: Select an aluminum pigment with an aluminum content of 60%, a flake aluminum particle thickness of 0.2 μm, and a flake aluminum particle diameter D50 of 10um, put 1 part of aluminum pigment into the reaction kettle, add 4 parts of D60 solvent, and then add 0.1 part of methyl methacrylate monomer, stirred at a speed of 20rpm, heated the reactor to a constant temperature of 70°C, and dripped an azo initiator at a rate of 0.08ml per minute. The total amount of the initiator added was the weight of the monomer 5%, continue to stir for 4 hours, turn off the heating and age for 2 hours after the end of the stirring, after the end of the aging, discharge the material and press filter to remove the solvent, and obtain 65% solid-containing polymer-coated flake-shaped aluminum particles;

[0027] Step 2: Combine the polymer-coated flake aluminum particles...

Embodiment 2

[0029] A kind of preparation method for the strip aluminum pigment of ABS high white brightness, its step comprises:

[0030] Step 1: Select an aluminum pigment with an aluminum content of 65%, a flake aluminum particle thickness of 0.3 μm, and a flake aluminum particle diameter D50 of 12um, put 1 part of aluminum pigment into the reaction kettle, add 5 parts of D70 solvent, and then add 0.15 parts of butyl methacrylate monomer, stirred at a speed of 22rpm, and the reactor was heated to a constant temperature of 75°C, and an azo initiator was dropped in at a rate of 0.1ml per minute. The total amount of the initiator added was the weight of the monomer 8%, continue to stir for 3.5h, turn off the heating after the stirring is over, and age for 2.5h, after the aging is finished, discharge the material and press filter to remove the solvent, so as to obtain 70% solid polymer-coated flake-shaped aluminum particles;

[0031] Step 2: Combine the polymer-coated flake-shaped aluminum ...

Embodiment 3

[0033] A kind of preparation method for the strip aluminum pigment of ABS high white brightness, its step comprises:

[0034] Step 1: Select an aluminum pigment with an aluminum content of 70%, a flake aluminum particle thickness of 0.5 μm, and a flake aluminum particle diameter D50 of 15um, put 1 part of aluminum pigment into the reaction kettle, add 6 parts of D60 solvent, and then add 0.2 parts of butyl methacrylate monomer, stirred at a speed of 25rpm, and the reactor was heated to a constant temperature of 80°C, and an azo initiator was dropped in at a rate of 0.12ml per minute. The total amount of the initiator added was the weight of the monomer 10%, continue to stir for 3 hours, turn off the heating and age for 3 hours after the end of the stirring, after the end of the aging, discharge the material and press filter to remove the solvent, and obtain a polymer-coated aluminum pigment with a solid content of 75%;

[0035] Step 2: Combine the polymer-coated aluminum pigme...

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Abstract

The invention discloses a high-white-brightness strip-shaped aluminum pigment for ABS and a preparation method of the high-white-brightness strip-shaped aluminum pigment. The method comprises the following steps: 1, selecting an aluminum pigment, and coating the aluminum pigment to obtain polymer-coated flaky aluminum particles; 2, mixing the polymer-coated flaky aluminum particles obtained in the step 1 with a carrier resin, an arrangement promoting auxiliary agent and a dispersing agent, carrying out stirring pre-dispersing, drying, and carrying out extrusion molding to obtain a finished product, wherein the carrier resin is modified PMMA resin or modified ASA resin. According to the invention, by coating the surfaces of flaky aluminum particles and selecting a carrier resin, the compatibility of the flaky aluminum particles and ABS is improved; by adding an arrangement promoting auxiliary agent in the formula, the orientation of the flaky aluminum particles is obviously improved; and when the pigment is specifically applied to an ABS product, the white brightness (L value) and the metal effect of the pigment in spraying-free ABS application are improved, the appearance of the product is improved, differentiated advantages can be created for products of customers, and the additional value of the product is improved.

Description

technical field [0001] The invention relates to the technical field of aluminum pigment production, in particular to a strip-shaped aluminum pigment used for ABS with high white brightness and a preparation method thereof. Background technique [0002] Spray-free metal effect plastics (hereinafter referred to as "spray-free plastics") have developed rapidly in recent years under the environment of environmental protection and high pressure. They are mainly used in household appliances, automobiles, packaging and other industries to improve the texture and appearance of plastics. The advantages of VOC emissions, cost reduction of more than 30%, no need for spraying and transfer, and assembly after molding have gradually won the favor of OEMs and home appliances. [0003] However, the disadvantages of spray-free plastics are also obvious. For example, the most common ABS (acrylonitrile-butadiene-styrene) plastic products, the strip-shaped aluminum pigments on the market use PE...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/10C08K7/00C08L55/02
CPCC08K9/10C08K7/00C08L55/02
Inventor 徐曈曈董前年朱雷明贺平徐俊军吴艺朱双单马红丽
Owner 安徽天易金属新材料有限公司
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