Electrostatic powder coating sprayed on tent support

An electrostatic powder and tent technology, applied in the field of powder coatings, can solve the problems of affecting product appearance, high production cost, poor anti-rust effect, etc., and achieve the effect of low production cost, good adhesion, and not easy to fall off

Active Publication Date: 2013-09-18
GUANGDONG UPAL DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing electrostatic powder coating has poor adsorption force, and strict pretreatment is required on the workpiece during spraying, such as sandblasting or zinc phosphating, and it is not allowed to directly use nitrite to passivate the rust after removing oil and rust. That is, electrostatic powder spraying is carried out, which can easily lead to large-scale peeling off of the coating
[0003] The tent frame used as an outdoor product needs to be sprayed with electrostatic powder to ensure the service life of the tent frame. However, the thick coating in the prior art greatly wastes raw materials, resulting in high production costs, and the adhesion of the currently used electrostatic powder Poor, resulting in large-scale peeling off of the coating, the anti-rust effect is extremely poor, and the appearance of the product is also affected due to the peeling off of the coating

Method used

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  • Electrostatic powder coating sprayed on tent support

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] raw material epoxy resin polyester resin leveling agent Titanium dioxide calcium carbonate wax powder pigment Accelerator parts by weight 25 30 0.15 10 6 0.4 0.8 0.5

[0029] Table 1

[0030] The production method step of the electrostatic powder coating that present embodiment is used for tent frame spraying is as follows:

[0031] (1) Weigh epoxy resin, polyester resin, leveling agent, titanium dioxide, calcium carbonate, wax powder, pigment and accelerator according to the weight fraction of each component in Table 1, and put the materials into a temperature of 30°C , the relative humidity is 23%, the rotating speed is to mix in the mixer of 1420r / min, the time of mixing is 43min;

[0032] (2) Put the material after step (1) into a temperature of 150°C, a relative humidity of 4%, and a pressure of 4Kg / cm 2 Extruded in the pressing machine to obtain block powder;

[0033] (3) Put the block powder obtained in step (2) into a...

Embodiment 2

[0036] raw material epoxy resin polyester resin leveling agent Titanium dioxide calcium carbonate wax powder pigment Accelerator parts by weight 30 32 1.0 15 8 1 1.6 1.0

[0037] Table 2

[0038] The production method step of the electrostatic powder coating that present embodiment is used for tent frame spraying is as follows:

[0039] (1) Weigh epoxy resin, polyester resin, leveling agent, titanium dioxide, calcium carbonate, wax powder, pigment and accelerator according to the weight fraction of each component in Table 2, and put the materials into a temperature of 40°C , the relative humidity is 25%, the rotating speed is to mix in the mixer of 1550r / min, the time of mixing is 45min;

[0040] (2) Put the material after step (1) into a temperature of 160°C, a relative humidity of 5%, and a pressure of 5Kg / cm 2 Extruded in the pressing machine to obtain block powder;

[0041] (3) Put the block powder obtained in step (2) into a pu...

Embodiment 3

[0044] raw material epoxy resin polyester resin leveling agent Titanium dioxide calcium carbonate wax powder pigment Accelerator parts by weight 40 35 0.25 30 12 3.0 3.2 2.5

[0045] table 3

[0046] The production method step of the electrostatic powder coating that present embodiment is used for tent frame spraying is as follows:

[0047] (1) Weigh epoxy resin, polyester resin, leveling agent, titanium dioxide, calcium carbonate, wax powder, pigment and accelerator according to the weight fraction of each component in Table 3, and put the materials into a temperature of 50°C , the relative humidity is 28%, the rotating speed is to mix in the mixer of 1680r / min, the time of mixing is 48min;

[0048] (2) Put the material after step (1) into a temperature of 170°C, a relative humidity of 6%, and a pressure of 6Kg / cm 2 Extruded in the pressing machine to obtain block powder;

[0049] (3) Put the block powder obtained in step (2) into ...

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Abstract

The invention discloses an electrostatic powder coating sprayed on a tent support. The electrostatic powder coating comprises the following components in parts by weight: 25 to 40 parts of epoxy resin, 30 to 35 parts of polyester resin, 0.15 to 0.22 part of a flatting agent, 10 to 30 parts of titanium dioxide, 6 to 12 parts of calcium carbonate, 0.4 to 3 parts of wax powder, 0.8 to 3.2 parts of pigments and 0.5 to 2.5 parts of a promoter. The electrostatic powder coating sprayed on the tent support is good in adhesive force and hard to drop off after being well sprayed, an antirust effect can be realized by spraying little electrostatic powder coating, the surface of the electrostatic powder coating is smooth, the spraying thickness is reduced by 20 percent compared with that of the original powder coating, and the production cost is greatly reduced. The electrostatic powder coating sprayed on the tent support also has excellent weather resistance, high temperature resistance and abrasion resistance, and the like.

Description

technical field [0001] The invention relates to powder coatings, in particular to an electrostatic powder coating with good adhesion and smooth surface for spraying tent frames. Background technique [0002] Electrostatic powder spraying uses a coating machine capable of atomizing the paint and generating electric current to micronize the paint, apply a charge to it, form an electric field between the electrode and the object to be coated, and use the high-voltage electric field to evenly adsorb on the metal. workpiece surface. The existing electrostatic powder coating has poor adsorption force, and strict pretreatment is required on the workpiece during spraying, such as sandblasting or zinc phosphating, and it is not allowed to directly use nitrite to passivate the rust after removing oil and rust. That is, electrostatic powder spraying is carried out, which can easily lead to large-area peeling off of the coating. [0003] The tent frame used as an outdoor product needs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D167/02C09D5/46C09D5/08C09D7/12
Inventor 张晓钟
Owner GUANGDONG UPAL DISPLAY TECH CO LTD
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