Spraying-free high-gloss plastic for household appliances and preparation method of plastic

A spray-free, high-gloss technology, applied in the field of modified plastics, can solve the problems of poor gloss, poor adhesion, poor adhesion of spray coatings, etc., and achieve the effects of high gloss, good pearlescent property, and good whiteness

Inactive Publication Date: 2019-12-20
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the widely used technique of using coating to modify the surface of ABS in the later stage has the disadvantages of poor adhesion and poor gloss of spray paint. The present invention blends and modifies ABS by preparing composite pearlescent microspheres to endow ABS with extremely high gloss. High-gloss and good whiteness, no need to spray high-gloss paint after ABS injection molding, which not only simplifies the production process, but also overcomes the defects of poor paint adhesion and poor gloss by spraying

Method used

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  • Spraying-free high-gloss plastic for household appliances and preparation method of plastic
  • Spraying-free high-gloss plastic for household appliances and preparation method of plastic
  • Spraying-free high-gloss plastic for household appliances and preparation method of plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Fully grind the mica powder and glass powder in a ball mill to obtain composite pearl powder; the ball-to-material ratio of the ball mill is 6:1, the cylinder rotation speed is 260r / min, and the grinding time is 8h;

[0037] The proportion of each raw material is, in parts by weight, 50 parts by weight of mica powder and 50 parts by weight of glass powder;

[0038] (2) First disperse the composite pearl powder and tetrabutyl titanate obtained in step (1) in water, then add organic acid to adjust the pH to 5, and then stir at high speed to form a composite wet gel; the organic acid is citric acid;

[0039] The ratio of each raw material is, in parts by weight, 25 parts by weight of composite pearl powder, 5 parts by weight of tetrabutyl titanate, and 70 parts by weight of water;

[0040] (3) First add the porous inorganic microspheres to the composite wet gel prepared in step (2), vacuum-treat for 18 minutes, wrap the composite wet gel on the pore structure and surface of the...

Embodiment 2

[0045] (1) Fully grind the mica powder and glass powder in a ball mill to obtain composite pearl powder; the ball-to-material ratio of the ball mill is 4:1, the cylinder rotation speed is 240r / min, and the grinding time is 12h;

[0046] The proportion of each raw material is, in parts by weight, 40 parts by weight of mica powder and 60 parts by weight of glass powder;

[0047] (2) First disperse the composite pearl powder and tetrabutyl titanate obtained in step (1) in water, then add organic acid to adjust the pH to 5, and then stir at high speed to form a composite wet gel; the organic acid is sulfamic acid;

[0048] The ratio of each raw material is, in parts by weight, 30 parts by weight of composite pearl powder, 10 parts by weight of tetrabutyl titanate, and 60 parts by weight of water;

[0049] (3) First add the porous inorganic microspheres to the composite wet gel prepared in step (2), vacuum-treat for 10 minutes, wrap the composite wet gel on the pore structure and surface of...

Embodiment 3

[0054] (1) Fully grind the mica powder and glass powder in a ball mill to obtain composite pearl powder; the ball-to-material ratio of the ball mill is 5:1, the cylinder speed is 200r / min, and the grinding time is 6h;

[0055] The proportion of each raw material is, in parts by weight, 42 parts by weight of mica powder and 58 parts by weight of glass powder;

[0056] (2) First disperse the composite pearl powder and tetrabutyl titanate obtained in step (1) in water, then add organic acid to adjust the pH to 5, and then stir at high speed to form a composite wet gel; the organic acids are citric acid and ethyl acetate. Diaminetetraacetic acid;

[0057] The ratio of each raw material is, in parts by weight, 22 parts by weight of composite pearl powder, 8 parts by weight of tetrabutyl titanate, and 70 parts by weight of water;

[0058] (3) First add the porous inorganic microspheres to the composite wet gel prepared in step (2), vacuum-treat for 15 minutes, wrap the composite wet gel on ...

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Abstract

The invention relates to the technical field of modified plastics, and discloses a spraying-free high-gloss plastic for household appliances and a preparation method of the plastic. The preparation method comprises the following steps: (1) mixing mica powder and glass powder, and performing ball milling to obtain composite pearl powder; (2) dispersing the composite pearl powder and tetrabutyl titanate into water to obtain composite wet gel; (3) adding porous inorganic microspheres into the composite wet gel, and adhering and inlaying the mica powder and the glass powder on the surfaces of theinorganic microspheres by the generated titanium dioxide to obtain composite pearlescent microspheres; and (4) performing high-speed mixing on the composite pearlescent microspheres, ABS resin, talcumpowder, a lubricant, an antioxidant and a toughening agent, and performing extrusion granulation to prepare the spraying-free high-gloss plastic. The surface of the prepared modified ABS plastic hasextremely high glossiness, and high-gloss paint does not need to be sprayed after injection molding, so that the defects of poor adhesiveness and poor glossiness of a coating in surface coating modification are overcome.

Description

Technical field [0001] The invention relates to the technical field of modified plastics, and discloses a spray-free high-gloss plastic for household appliances and a preparation method thereof. Background technique [0002] Plastics play an important role in home appliances and electrical appliances, such as refrigerators, TVs, and mobile phones. In order to achieve a good appearance, most of them need to be sprayed, hot stamped, gold-plated and other beautification treatments. Spraying is a common method, but the sprayed parts have low brightness, poor scratch resistance and reduced service life. Especially sprayed plastic products must use solvent coatings, which causes great pollution to the environment. Therefore, spray-free materials are gradually being developed. [0003] Spray-free material products are gradually showing their competitiveness. Spray-free resin can replace spray paint to produce gorgeous and colorful colors and special effects such as pearlescent, flashing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L23/08C08K13/06C08K9/10C08K3/34C08K3/40C08K7/22C08K3/22
CPCC08K2003/2241C08L55/02C08L23/0815C08K13/06C08K9/10C08K3/34C08K3/40C08K7/22C08K3/22
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
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