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Inorganic nano composite material modified weatherproof polyurethane powder coating and its preparation

A technology of nano-composite materials and polyurethane powder, which is applied in the direction of powder coatings to achieve high anti-aging performance

Inactive Publication Date: 2005-09-14
攀枝花钢铁有限责任公司钢铁研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In conclusion, domestic and foreign literature search results show that no report on weather-resistant polyurethane powder coatings modified by inorganic nanocomposites has been found.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The formula composition of the weather-resistant polyurethane powder coating modified by inorganic nanocomposite materials is as follows:

[0026]

Embodiment 2

[0028]

Embodiment 3

[0031] The preparation method of the weather-resistant polyurethane powder coating modified by the inorganic nanocomposite material is:

[0032] 1. Weigh the nanocomposite material with an average particle size of 10-100nm;

[0033] 2. Fully mix the above weighed nanocomposite material with filler, polyester resin, curing agent, auxiliary agent, etc. in a high-speed mixer;

[0034] 3. The above-mentioned mixed materials are transported to the melt mixing extruder by a feeder, pressed into thin sheets by a tablet cooler, cooled, and crushed by a crusher, and then transported to an air classifying mill (ACM) for fine grinding. The cyclone separator collects most of the crushed semi-finished products, and then the finished powder coating is obtained after the sundries and coarse powder are removed by the sieving machine, and then packed.

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PUM

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Abstract

A nano-class inorganic composition modified high-weatherability polyurethane powder paint is prepared from (10-100)-nm composition, closed isophorone diisocyanate, assistant, filler and hydroxypolyester resin through proportional premixing, fusing-extruding out, cooling, breaking, pulverizing and sieving. Its advantages are high antiageing performance improved by 100-200%, and high hardness, adhesion and impact strength.

Description

1. Technical field [0001] The invention relates to a weather-resistant polyurethane powder coating modified by an inorganic nanocomposite material and a preparation method thereof, belonging to the field of powder coating preparation. 2. Background technology [0002] US Patent No. 5759746, Fabrication process using a multi-layer antireflective layer, reports the preparation of an assembly antireflective coating technology with nano-silicon dioxide added on semiconductor integrated circuit boards. This technology is mainly to prevent some semiconductor integrated circuit boards from For example, a kind of protective layer provided by the influence of ultraviolet rays on the etching performance of circuit boards in semiconductor memory and lithography technology; Japanese patent 10-330937, Formation of substantially flat coating has reported the preparation of a super-smooth coating used on superconducting integrated circuit boards Coating technology, a small amount of nano o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/03C09D175/06
Inventor 涂铭旌汪斌华熊玉竹郭刚曹建军张波雷念慈
Owner 攀枝花钢铁有限责任公司钢铁研究院