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Additive for fluorocarbon paint spraying that can increase electrostatic effect

An electrostatic effect and additive technology, applied in conductive coatings, coatings, etc., can solve problems such as uneven distribution of metal particles, poor spray gun atomization rate, weak electrostatic effect, etc., to increase adsorption rate and paint rate, atomization Strong rate and strong three-dimensional effect

Active Publication Date: 2011-12-07
上海新大余氟碳喷涂材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the electrostatic effect in the spraying process is weak and the conductivity is poor
Due to the large resistance, the spray gun has poor atomization rate, low adsorption force, low paint rate, and uneven distribution of metal particles.

Method used

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  • Additive for fluorocarbon paint spraying that can increase electrostatic effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 Get formula di-butanone 18%, diethylene glycol butyl ether 15%, methyl isobutyl ketone 2%, butyl acetate 4%, the additive prepared by methylcyclohexane main solution 61%, the workpiece Or the base material passes through the conventional fluorocarbon spraying pretreatment process: degreasing and decontamination, water washing, alkali washing (degreasing), water washing, pickling, water washing, chromization, water washing, and pure water washing. Then add this additive to the fluorocarbon paint, and control the added amount to the same viscosity as other additives. It will be dripped in the measuring cup of ZARNNO0.2 in 18 seconds. The spraying is three coats, the thickness of the primer is 10 μm, and the thickness of the top coat is 10 μm is 20 μm, and the thickness of the varnish is 10 μm. When spraying, the fan-shaped atomization pressure of the spray gun is 1kg / mpa, and the electrostatic voltage is 60KV. The spraying process is as follows: primer, topco...

Embodiment 2

[0019] Example 2 Di-butanone 20%, diethylene glycol butyl ether 11%, methyl isobutyl ketone 4%, butyl acetate 5%, n-hexane main solution 60% additives prepared, the rest are the same as in Example 1 . The effect is also very good, and its technical parameters are basically the same as the above table.

Embodiment 3

[0020] Embodiment 3 Di-butanone 15%, diethylene glycol butyl ether 20%, methyl isobutyl ketone 3%, butyl acetate 6%, the additive that n-pentane main solution 56% is mixed with, all the other and embodiment 1 same. The effect is also very good, and its technical parameters are the same as the above table.

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Abstract

The invention belongs to the technical field of fluorocarbon paints, and particularly relates to an additive capable of improving the electrostatic effect for spraying fluorocarbon paint. The additive consists of the following components in percentage by weight: 15-25 percent of methyl ethyl ketone, 10-20 percent of diethylene glycol monobutyl ether, 2-4 percent of methyl isobuthyl ketone, 3-6 percent of butyl acetate and 45-70 percent of alkane main solution. The additive can be used for overcoming the defects of low atomizing efficiency of a spray gun, low adsorption force, low painting efficiency and non-uniform distribution of metal fine particles and the like caused by weak electrostatic effect and poor electric conductivity in the spraying process of the fluorocarbon paint at present.

Description

technical field [0001] The invention belongs to the technical field of fluorocarbon paints, in particular to an additive for spraying fluorocarbon paints. Background technique [0002] In the fluorocarbon paint spraying process, the resistivity of the paint, commonly referred to as conductivity, is critical, so that the negatively charged atomized paint particles and the positively charged workpiece (or ground) to be sprayed will form a electrostatic field. At present, the electrostatic effect in the spraying process is weak and the conductivity is poor. Due to the large resistance, the spray gun has poor atomization rate, small adsorption force, low paint rate, uneven distribution of metal particles and other defects. Contents of the invention [0003] The object of the present invention is to provide an additive for fluorocarbon paint spraying that can increase the electrostatic effect, thereby improving the atomization rate, paint rate and adsorption force of the spra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D5/24
Inventor 邵春华朱玉冲陈剑峰朱美玉
Owner 上海新大余氟碳喷涂材料有限公司
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