Acroleic acid mixed powder coating

A powder coating and hybrid technology, applied in powder coatings, epoxy resin coatings, coatings, etc., can solve problems that affect anti-yellowing and anti-loss properties, are highly toxic, and do not meet environmental protection, and achieve improved anti-yellowing Denaturation and tarnish resistance, low cost, effect of improving outdoor durability

Inactive Publication Date: 2008-07-23
宁波派特勒新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the epoxy resin-polyester resin system has a certain content of aromatic components, which affects its anti-yellowing and anti-loss properties when exposed outdoors.
In addition, the exist

Method used

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  • Acroleic acid mixed powder coating

Examples

Experimental program
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Effect test

Example Embodiment

[0010] The following examples further illustrate the present invention.

[0011] Accurately weigh the materials according to the composition of the embodiment in Table 1, and place them in a high-speed mixer to mix for 10-12 minutes; after the materials are mixed, they are extruded with an extruder at a temperature of 100-115°C; the extruded materials are pulverized with a crusher to average Powder particles with a particle size of 35-45 microns; the powder particles are sieved with a 140-mesh screen and packaged as finished products.

[0012] The formula of acrylic hybrid powder coating is shown in Table 1:

[0013] Table 1 Formula of acrylic hybrid powder coating (parts by weight)

[0014]

[0015] The acrylic hybrid powder coating obtained according to the above examples is sprayed with an electrostatic spray gun of 50-70 μm, and cured in an electric oven at 190°C for 25 minutes. Perform performance inspection on the coating. Its main coating film properties are:

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Abstract

The invention relates to an acrylic acid mixed powder coating, which is characterized in that the formula comprises the following components in pbw (part by weight): 25 to 40 portions of epoxy resin, 25 to 40 portions of acrylic acid resin, 0.5 to 2 portions of leveling agent, 30 to 35 portions of filler, 0.1 to 0.2 portion of system catalyst, and 0.1 to 2 portions of other additive. The acrylic acid mixed powder coating has the advantages of lower costs, simple preparation and production, no need for curing agent, better hardness, excellent chemical and pollution resistance, long outdoor endurance, and broad application prospects.

Description

technical field [0001] The invention relates to an acrylic mixed type powder coating. Background technique [0002] Typical powder coatings are mostly epoxy resin-polyester resin systems. Among them, the carboxylic acid functionality of the polyester resin is about 3 to 4, the hardness is not high, and due to the large amount of ester groups contained in the polyester, it is susceptible to Effect of hydrolysis reactions of common pollutants. Moreover, the epoxy resin-polyester resin system has a certain content of aromatic components, which affects its anti-yellowing and anti-loss properties when exposed outdoors. In addition, isocyanate curing agents need to be added to the existing acrylic mixed powder coatings for curing, but isocyanate substances are highly toxic and do not meet the current environmental protection requirements. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned defect, provide a kind of acrylic hybr...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D133/02C09D5/03
Inventor 徐明程红华章付杰周江丰
Owner 宁波派特勒新材料股份有限公司
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