Unlock instant, AI-driven research and patent intelligence for your innovation.

Self-cleaning paint coating and a method and agent for producing the same

A technology of composition and paint film, applied in the direction of cleaning methods and utensils, chemical instruments and methods, methods for preventing pollution, etc., can solve problems such as self-cleaning paint film not mentioned

Inactive Publication Date: 2005-01-05
FERRO CORP
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the preparation method taught in this document can also be used on other substrates than those mentioned in the text, this document does not mention a self-cleaning paint film comprising a primer layer and a surface layer with an artificial surface structure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] The polyester-epoxy based powder coating was dry coated with a slide on an aluminum sheet (9 x 6 cm, 4 mm thick). The dried layer thickness was 300 μm. The primer layer was gelled or cured under the conditions (°C / time) shown in the table below (column "Conditions").

[0041] The composition (unit: g) of the composition forming the surface layer is shown in the table below. Fumed silica (Aerosil  from Sivento) as structure-forming particles using tridecylfluorooctyltriethoxysilane (Sylan  F8262 or F8263 from Sivento) as hydrophobic agent. The components were slurried using a three-roll mixer. The composition was applied by the means described in the table below. The dosage for each test is about 0.25g / tablet. Dry and cure at 200°C.

[0042] The scratch resistance and good self-cleaning effect of the paint film are proven - the rolling angle is less than 3°, especially less than 1°.

[0043] Example number

1

2

3

4

5

6

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to self-cleaning paint coatings that exhibit the Lotus effect3 and to an agent and a method for producing the same. The inventive paint coatings comprise a paint base coat and a top coat, which has structure-forming particles with an average particle diameter of 100 nm; said top coat is at least partially hydrophobic and has elevations interspaced at a distance of 50 nm. The agent contains a liquid medium, at least one hydrophobing agent that has been dissolved therein and the aforementioned structure-forming particles held in suspension. The method comprises the following steps: coating of a substrate with a paint coat, application of the liquid to pasty agent that forms the top coat to the partially cured or uncured paint base coat and curing of the top coat and if required, the paint base coat.

Description

technical field [0001] The present invention relates to self-cleaning paint films on any substrate requiring self-cleaning functionality; said paint films exhibit the "lotus leaf effect"  "(Lotus Effect  ). The invention also provides the preparation method and the used composition of the self-cleaning paint film. Background technique [0002] It is known that in order to obtain a good self-cleaning effect on the surface, in addition to making the surface have good hydrophobicity, it is also necessary to make the surface have a rough surface structure. Some objects naturally have both properties, such as a lotus leaf. The surface of the lotus leaf is composed of a hydrophobic substance with pyramid-shaped protrusions that are several micrometers apart from each other. The water droplets actually only touch the pyramid tips, so the contact area is small, resulting in low adhesion. A.A. Abramzo in Khimiai Zhizu (1982) No. 11, pp. 38-40, proposed the above mechanism and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B05D7/26B05D3/02B05D5/08B05D7/00B05D7/24B08B17/06C09D5/16C09D5/28C09D7/12C09D101/00C09D163/00C09D167/00C09D183/08C09K3/00C09K3/18
CPCB08B17/06C09D5/28B05D7/52B05D2601/20B05D5/083B05D3/0254B08B17/065Y10T428/25Y10T428/259Y10T428/31Y10T428/256C09D5/10
Inventor 马丁·鲍曼克劳斯·迪特尔·弗利切达格玛·克尔贝拉兹斯蒂芬·路德维格路兹·鲍斯
Owner FERRO CORP