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SUV bumper cobweb powder paint excellent in air permeability and preparation method thereof

A technology of powder coating and air permeability, which is applied in the direction of powder coating, anti-corrosion coating, polyester coating, etc. It can solve the problems that affect the service life of automobile bumpers, affect the safety of automobile driving, and the complex shape of workpieces, etc., and achieve excellent air permeability and prolong Long service life, strong three-dimensional effect

Inactive Publication Date: 2017-04-26
GUANGZHOU KINTE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The highly decorative powder coating with a textured appearance can be used for SUV bumpers, front and rear guards, side steps, etc. However, SUV bumper front and rear guards, side steps and other workpieces have complex shapes and many bends and corners. , easy to pile up powder and produce pores and air bubbles, resulting in discontinuous coating, affecting the service life of the car bumper, thus affecting the driving safety of the car

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation method of textured powder base powder:

[0040] Components and weight percentages are:

[0041] Hydroxyl-terminated polyester resin with a hydroxyl value of 40-50 mgKOH / g and a viscosity of 3000-4000 (ICI, mPa.s / 200°C) 68%

[0042] Tetramethoxymethyl glycoluril 5.2%

[0043] Amine blocked sulfonic acid 0.4%

[0044] Acrylic leveling agent PLP-100 1.1%

[0045] Titanium dioxide 1%

[0046] Barium Sulfate 20%

[0047] Benzoin 0.4%

[0048] Epoxy acrylic resin 0.8%

[0049] Breathing agent RC961 1%

[0050] Micronized Polyethylene Wax 1.1%

[0051] Carbon Black 1.0%.

[0052] The ratio of dry mixed tank semi-finished product to BBM and breather RC961 is 100:0.2:0.5.

[0053] Preparation:

[0054] (1) Put the above-mentioned percentage of raw materials into the mixing tank to fully mix and crush;

[0055] (2) Use a twin-screw extruder to melt, knead, and disperse the premixed raw materials evenly and extrude them. The temperature in zone I of the ext...

Embodiment 2

[0061] Preparation method of textured powder base powder:

[0062] Components and weight percentages are:

[0063] Hydroxyl-terminated polyester resin with a hydroxyl value of 40~50mgKOH / g and a viscosity of 3000~4000 (ICI, mPa.s / 200℃) 68%

[0064] Tetramethoxymethyl glycoluril 4.2%

[0065] Blocked isocyanate 0.5%

[0066] Amine blocked sulfonic acid 0.4%

[0067] Acrylic leveling agent PLP-100 1.2%

[0068] Titanium dioxide 1%

[0069] Barium Sulfate 20%

[0070] Benzoin 0.5%

[0071] Breathing agent TP949 1%

[0072] Epoxy acrylic resin 1%

[0073] Micronized Polyethylene Wax 1.1%

[0074] Carbon black 1.1%.

[0075] The ratio of dry mixed tank semi-finished product to BBM and breather TP949 is 100:0.2:0.3.

[0076] Preparation:

[0077] (1) Put the above-mentioned percentage of raw materials into the mixing tank to fully mix and crush;

[0078] (2) Use a twin-screw extruder to melt, knead, and disperse the premixed raw materials evenly and extrude them. The temp...

Embodiment 3

[0084] Preparation method of textured powder base powder:

[0085] Components and weight percentages are:

[0086] Hydroxyl-terminated polyester resin with a hydroxyl value of 40-50 mgKOH / g and a viscosity of 3000-4000 (ICI, mPa.s / 200°C) 68%

[0087] Tetramethoxymethyl glycoluril 5.7%

[0088] Amine blocked sulfonic acid 0.4%

[0089] Acrylic leveling agent PLP-100 1.2%

[0090] Titanium dioxide 1%

[0091] Barium Sulfate 20%

[0092] Benzoin 0.5%

[0093] Breathing agent TP949 1%

[0094] Micronized Polyethylene Wax 1.1%

[0095] Carbon black 1.1%.

[0096] The ratio of dry mixed tank semi-finished product to BBWK and breather TP949 is 100:0.1:0.8.

[0097] Preparation:

[0098] (1) Put the above-mentioned percentage of raw materials into the mixing tank to fully mix and crush;

[0099] (2) Use a twin-screw extruder to melt, knead, and disperse the premixed raw materials evenly and extrude them. The temperature in zone I of the extruder is 90-100°C, and the tempera...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses SUV bumper cobweb powder paint excellent in air permeability. The paint comprises a primer powder composition and an external mixing composition, wherein the external mixing composition accounts for 0.5-2% of the primer powder composition. The external mixing composition comprises an embossed agent and an air permeable agent, while the primer powder composition comprises, by weight, 55-80% of polyester resin, 4-6% of curing agent, 0.8-2% of leveling agent, 0-2% of Benzoinum Styracis, 0-1% of catalyst, 0.2-1% of air permeable agent, 5-35% of inorganic filler, 0-5% of additive, 0-2% of wax powder and 0-10% of pigment. The invention further discloses a preparation method of the powder paint. According to the preparation method, the powder paint is prepared by adding the amine closed sulfonic acid catalyst to terminal hydroxyl saturated polyester / TMMGU system powder paint, the gloss is reduced while the surface tension is improved, and a coating with a strong three-dimensional effect is obtained at the same time. The powder paint is beautiful in pattern, strong in three-dimensional effect, excellent in air permeability and strong in acid and alkali resistance and organic solvent scrubbing resistance.

Description

technical field [0001] The invention relates to a powder coating and a preparation method thereof, in particular to an SUV bumper mesh powder coating with excellent air permeability and a preparation method thereof. Background technique [0002] Powder coating has the characteristics of energy saving and environmental protection, no VOC emission, good decoration, and safe use. In recent years, domestic powder coating technology has developed rapidly. As a decorative material, powder coatings, with the improvement of people's living standards, and the diversity of choices and needs. People's requirements for powder coating coatings are no longer limited to leveling powder coatings. Decorative paints such as water pattern, orange pattern, hammer pattern, silver powder effect and net pattern are all popular. The highly decorative powder coating with a textured appearance can be used for SUV bumpers, front and rear guards, side steps, etc. However, SUV bumper front and rear gu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03C09D5/08C09D5/28C09D7/12
CPCC09D167/00C08L2205/03C08L2312/00C09D5/033C09D5/08C09D5/28C08L63/10C08L23/06C08K13/02C08K2003/2241C08K2003/3045C08K5/3445C08K5/0091C08K5/56C08K5/07
Inventor 欧阳建群罗绵生梁泳田高庆福胡百九
Owner GUANGZHOU KINTE IND
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