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

Coating film and composite material having coating film

A technology of composite materials and coatings, applied in the coating process of metal materials, nanotechnology for materials and surface science, plating of superimposed layers, etc., can solve problems such as toxicity

Pending Publication Date: 2022-06-21
TOYOTA JIDOSHA KK +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chromate treatment has a problem of toxicity of hexavalent chromium, requires wastewater treatment facilities, and has serious environmental problems associated with pollution control, so non-chromium treatment that replaces chromate treatment is being developed recently

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Coating film and composite material having coating film
  • Coating film and composite material having coating film
  • Coating film and composite material having coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0095] Except in Comparative Example 2, the figure 2 The process before UV treatment in the film-forming process described in, that is, immersion of degreased and acid-washed SUS in PDDA solution, followed by washing and drying, and further immersion in a dispersion solution of titanium dioxide nanosheets, followed by washing and drying Except repeating the process 10 times, it carried out similarly to the comparative example 2, and produced the composite material which formed the film which has a multilayer structure of the nanosheet of titanium dioxide on SUS at 30 nm.

Embodiment 3

[0097] Except in Comparative Example 2, the figure 2 The process before UV treatment in the film-forming process described in, that is, immersion of degreased and acid-washed SUS in PDDA solution, followed by washing and drying, and further immersion in a dispersion solution of titanium dioxide nanosheets, followed by washing and drying Except repeating the process 20 times, it carried out similarly to the comparative example 2, and produced the composite material which formed the film which has a multilayer structure of the nanosheet of titanium dioxide on SUS at 40 nm.

[0098] I-2. Evaluation

[0099]

[0100] With respect to the SUS of Comparative Example 1 and the composite materials of Comparative Examples 2 to 3 and Examples 1 to 3, a salt spray test was performed. In the salt spray test, the cycle of salt spray and drying specified in JISK8150 was repeated 20 times.

[0101] exist Figure 5 The relationship between the film thickness of the film and the erosion d...

Embodiment 4

[0108] In the same manner as in Example 1, a composite material in which a film having a multilayer structure in which a nanosheet of titanium dioxide was laminated was formed on SUS was produced.

[0109] II-2. Evaluation

[0110]

[0111]XRD was performed on the composite materials of Comparative Example 4 and Example 4. Furthermore, for the composite material of Example 4, as the manufacturing process figure 2 In the UV treatment in the film formation process described in , XRD was also performed after 12 hours of UV irradiation and 24 hours of UV irradiation, respectively.

[0112] Figure 7 In, for the composites of Comparative Example 4 (UV irradiation time: 0 hours) and Example 4 (UV irradiation time: 12 hours, 24 hours, and 48 hours), the relationship between UV irradiation time (horizontal axis) and XRD patterns is shown. The interlayer distance (plane spacing) (left vertical axis) between nanosheets of inorganic oxide calculated from the peak position (2θ) deri...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a coating film and a composite material having the coating film. The coating film has a multilayer structure in which nanosheets of an inorganic oxide are laminated, and has a film thickness of at least a certain value. The composite material comprises a metal material and the coating film formed on the metal material.

Description

technical field [0001] The present invention relates to a coating, particularly a coating composed of an inorganic oxide, and a composite material having the coating. Background technique [0002] In various fields such as steel, home appliances, building materials, and automobiles, various metal materials are required to have corrosion resistance (rust resistance) and coating film adhesion. In order to improve the corrosion resistance of various metal materials and obtain materials with improved rust prevention effect, it is known that a large amount of metal additives such as Cr is added to form a passivation layer (oxidative protective film produced by metal oxides) on the surface of the metal material. . However, in addition to changing the composition of the metal material, the material to which the metal additive is added also increases the cost. [0003] On the other hand, in order to improve the corrosion resistance and coating film adhesion of various metal materi...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C23C26/00C23C18/12B82Y30/00
CPCC23C26/00C23C18/1216C23C18/1241C23C18/1254B82Y30/00B05D1/18B05D3/067B05D3/105B05D7/14B05D2202/10B05D7/56C23C28/04C23C28/042C23C28/42C23C28/40C23C28/345C23C28/00C23C28/321C23C28/322C23C30/005
Inventor 三宅庆治石井仁士三轮朋宏西岛大贵谷口贵章佐佐木高义坂井伸行L·努尔蒂维亚彦托柳泽亚衣
Owner TOYOTA JIDOSHA KK
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com