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Preparing method and system for nanometer TiO2, metal micropowder, resin micropowder powder paint

A metal micropowder and powder coating technology, which is applied to the preparation of resin micropowder powder coatings, the above-mentioned nano-TiO2, nano-TiO2, metal micropowder, resin micropowder powder coatings preparation system field, can solve the problem of poor electrostatic ability, poor bonding, and easy coating. shedding and other problems, to achieve the effect of improved abundance, obvious abundance and bright surface color

Inactive Publication Date: 2006-02-22
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the existing nano-TiO 2 1. The metal pearlescent powder cannot be well mixed with the matrix polyester and / or epoxy resin powder in the pretreatment process before spraying. During the mixing process, due to the direct heating and stirring method, the mixture is heated unevenly, and local When the heating temperature is too high, it is easy to cause the matrix polyester and / or epoxy resin to soften or even melt, and the mixture is locally sticky and agglomerated, and the uneven mixing of the mixture as a whole causes the nano-metal powder to fly during the spraying process, and the metal Micro-utilization is low and pollutes the environment, and nano-TiO 2 And the combination of metal powder and polyester and / or epoxy resin powder on the surface of the object is not strong. In the process of electrostatic spraying, metal powder has poor electrostatic capacity as an independent dispersed phase, and poor bonding with metal substrates such as steel plates. Coating after spraying It is easy to fall off, resulting in large differences in performance and color between product batches, and floor-to-ceiling metal powder coatings cannot be reused well

Method used

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  • Preparing method and system for nanometer TiO2, metal micropowder, resin micropowder powder paint
  • Preparing method and system for nanometer TiO2, metal micropowder, resin micropowder powder paint
  • Preparing method and system for nanometer TiO2, metal micropowder, resin micropowder powder paint

Examples

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specific Embodiment approach 1

[0025] A preparation method of nano-spray pearlescent powder coating, comprising the following sequential steps:

[0026] (1) Nano-TiO 2 Mixed with nano metal powder and polyester and / or epoxy resin;

[0027] (2) Mix the above-mentioned mixture in the drum at a rotational speed of 250 r / min, install a temperature detector in the drum, and heat the mixture for 30 minutes by heat radiation on the periphery of the drum. The heating temperature is generally slightly lower than the softening point of the resin.

specific Embodiment approach 2

[0028] A preparation method of nano-spray pearlescent powder coating, comprising the following sequential steps:

[0029] (1) Nano-TiO 2 Mixed with nano metal powder and polyester and / or epoxy resin;

[0030] (2) The above-mentioned mixture was mixed uniformly in the drum at a rotational speed of 350 rpm, a temperature detector was installed in the drum, and the mixture was heated for 45 minutes by radiant heat on the periphery of the drum. The heating temperature is slightly lower than the softening point of the resin.

specific Embodiment approach 3

[0031] A preparation method of nano-spray pearlescent powder coating, comprising the following sequential steps:

[0032] (1) Nano-TiO 2 Mixed with nano metal micropowder and polyester and / or epoxy resin micropowder;

[0033] (2) Mix the above mixture evenly in the drum at a rotational speed of 400 r / min, install a temperature probe in the drum, insert the temperature probe into the mixture, and heat the mixture for 50 minutes by radiant heat on the periphery of the drum. The heating temperature is slightly lower than the softening point of the resin.

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Abstract

A powder paint sprayed onto surface of steel plate is prepared from TiO2 nanoparticles, metallic nanoparticles and polyester and / or epoxy resin through proportional mixing, and indirect heating. Its preparing apparatus is composed of drum stirrer, heater and temp controller. Its advantages are no flying metal powder, high adhesion, and sure self-cleaning, anti-pollution and antibacterial functions.

Description

Technical field [0001] The invention relates to a preparation method of a coating, in particular to a nano-TiO 2 , the preparation method of metal micropowder, resin micropowder powder coating. The present invention also relates to the above-mentioned nano TiO 2 , Metal micropowder, resin micropowder powder coating preparation system. Background technique [0002] Adding Nano-TiO to Metal Pearlescent Powder Coatings 2 Can significantly improve the color and brightness of the coating, while nano-TiO 2 It has the ability of self-cleaning, anti-pollution and certain contact antibacterial, so nano-TiO 2 It has been widely used in metallic pearlescent powder coatings. But the existing nano-TiO 2 1. The metal pearlescent micropowder cannot be well mixed with the matrix polyester and / or epoxy resin micropowder in the pretreatment process before spraying. During the mixing process, due to the direct heating and stirring method, the mixture is heated unevenly and localized Whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/03C09D167/00C09D163/00
Inventor 崔作林张志焜王兆波
Owner HAIER GRP CORP