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Chlorinated polypropylene paint and preparation method thereof

A technology for chlorinated polypropylene and coatings, applied in anti-corrosion coatings, coatings, etc., can solve problems such as performance differences, and achieve the effects of improving boiling resistance, improving uniformity, and reducing water vapor penetration paths

Inactive Publication Date: 2020-03-24
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The automobile exterior bumper paint is matched with different color paint decorations, so the performance is quite different, especially the matching white paint. At present, the performance of the white water boiling resistance of the polypropylene paint matching the silver paint is worse than that of the silver paint matching. The development of matching white paint Polypropylene primer with excellent boiling resistance has become an urgent demand

Method used

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  • Chlorinated polypropylene paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 6

[0050] A kind of chlorinated polypropylene coating, the raw material of this coating comprises the component of following parts by weight:

[0051] Chlorinated polypropylene resin: 30;

[0052] Coumarone Resin: 5;

[0053] Dispersant: 2;

[0054] Defoamer: 1;

[0055] Organic bentonite: 1;

[0056] Titanium dioxide: 8;

[0057] Mica powder: 5;

[0058] Non-leafing aluminum silver paste: 1;

[0059] Leveling agent: 1;

[0060] Solvent: 20;

[0061] Absolute ethanol: 0.5.

[0062] Wherein: the molecular weight of the chlorinated polypropylene resin is 40000-60000, and the chlorine content is between 5% and 15%. The softening point of the above-mentioned coumarone resin is between 90°C and 100°C; the solvent is acetone.

[0063] Prepared by:

[0064] (1) Add organic bentonite in the solvent under stirring state, the mass ratio of solvent mass and organic bentonite is 3:1, adjust the rotating speed according to its stirring state, wait for its state to be uniform, without...

Embodiment 7

[0069] A kind of chlorinated polypropylene coating, the raw material of this coating comprises the component of following parts by weight:

[0070] Chlorinated polypropylene resin: 40;

[0071] Coumarone Resin: 10;

[0072] Dispersant: 2.5;

[0073] Defoamer: 1;

[0074] Organic bentonite: 1;

[0075] Titanium dioxide: 6;

[0076] Mica powder: 1.5;

[0077] Non-leafing aluminum silver paste: 1.5;

[0078] Leveling agent: 1.5;

[0079] Solvent: 25;

[0080] Absolute ethanol: 1.

[0081] Wherein: the molecular weight of the chlorinated polypropylene resin is 40000-60000, and the chlorine content is between 5% and 15%. The softening point of the coumarone resin is between 90°C and 100°C; the solvent is methyl isobutyl ketone.

[0082] Prepared by:

[0083] (1) Add the organic bentonite to the solvent under stirring, the mass ratio of the solvent mass to the organic bentonite is 1:1, adjust the speed according to the stirring state, and wait for the state to be uniform ...

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Abstract

The invention relates to a chlorinated polypropylene paint and a preparation method thereof. The paint comprises the following components by weight: 20-50 parts of chlorinated polypropylene resin; 5-20 parts of coumarone resin; 1-3 parts of a dispersant; 0.5-2 parts of a defoaming agent; 0.5-2 parts of organic bentonite; 5-10 parts of an inorganic pigment; 5-8 parts of mica powder; 1-2 parts of non-floating aluminum paste; 0.5-2 parts of a leveling agent; 15-30 parts of a solvent; and 0.25-1 part of anhydrous ethanol. Compared with the prior art, the paint disclosed by the invention has excellent boiling resistance and adhesive force.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a chlorinated polypropylene coating and a preparation method thereof. Background technique [0002] Polypropylene and its composite materials containing polypropylene are widely used in interior and exterior trim parts of automobiles, such as front and rear bumpers, grilles, fenders, and rearview mirrors, due to their outstanding advantages such as low density, good mechanical properties, and chemical resistance. , dashboards, anti-scratch strips and other automotive components. In the exterior parts, the bumper not only has a certain decorative effect on the appearance of the car, but also has a protective effect on the car body and pedestrians. This is because the elasticity of the plastic itself can effectively absorb the impact force of the collision with the pedestrian, and make it as far as possible. Pedestrian injuries were minimal. The bumper is mainly made of polypropylene. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/28C09D145/02C09D7/61C09D7/65C09D5/10
CPCC08K2003/0812C09D5/103C09D123/28C09D7/61C09D7/65C09D7/70C08L45/02C08K13/06C08K7/00C08K3/34C08K3/08
Inventor 朱忠敏叶小明马文军
Owner DONGLAI COATING TECH SHANGHAI
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