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Method for forming antifouling coating and antifouling material having antifouling coating

An antifouling and coating technology, applied in antifouling/underwater coatings, devices for coating liquids on the surface, coatings, etc., can solve the problems of insufficient photocatalysts to prevent pollution, high cost, and inability to obtain adhesion Power and other issues

Inactive Publication Date: 2004-09-22
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the deployment of surfactants will result in higher costs. In addition, although the adhesion between the above-mentioned water-based coatings and plastics or rubber has been improved somewhat, the uniformity of adhesion has deteriorated, and firm adhesion cannot be obtained. The problem of obtaining the anti-pollution effect of photocatalyst

Method used

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  • Method for forming antifouling coating and antifouling material having antifouling coating
  • Method for forming antifouling coating and antifouling material having antifouling coating
  • Method for forming antifouling coating and antifouling material having antifouling coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] (1) Production of substrate

[0064] The base material was prepared by coating an acrylic resin paint (acrylic cleanser, manufactured by Nippon Paint Co., Ltd.) with a thickness of 30 μm on an aluminum plate of 50×100×2 mm, followed by baking treatment at 160°C for 60 minutes.

[0065] (2) Plasma discharge treatment

[0066] Plasma discharge treatment is used such as figure 1 The plasma discharge treatment device shown is performed. After degreasing the acrylic resin surface (treatment surface) of the above substrate with ethanol, the substrate is placed in a 10×10×30 cm glass processing chamber, the processing chamber is evacuated, and then O 2 The gas is formed into 1torr, and a voltage with an output power of 100W is applied for 10 minutes to perform plasma discharge treatment.

[0067] (3) Measurement of contact angle

[0068] Use a contact angle meter to measure the water contact angle within 30 minutes. The measurement results are shown in Table 2. The contact angle ...

Embodiment 2

[0076] In addition to the atmosphere gas during plasma discharge treatment, from O 2 Change the gas to N 2 Except for the gas, the experiment was performed in the same manner as in Example 1.

Embodiment 3

[0078] In addition to the atmosphere gas during plasma discharge treatment, from O 2 The experiment was performed in the same manner as in Example 1, except that the gas was changed to Ar gas.

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Abstract

A method for forming an antifouling coating disposed on the surface to be treated of a substrate having a surface comprising a plastic or a rubber, which contains a photocatalyst and an amorphous titanium peroxide having substantially no photocatalytic activity, characterized in that it comprises a step of subjecting the surface to be treated of the substrate to a dry treatment for introducing a hydrophilic group onto the surface, and a step of applying an aqueous coating material containing a photocatalyst and an amorphous titanium peroxide having substantially no photocatalytic activity on the resultant surface after the treatment; and an antifouling material having an antifouling coating formed by the method. The dry treatment is preferably a plasma discharge treatment, a corona discharge treatment or an ultraviolet irradiation treatment.

Description

Technical field [0001] The present invention relates to a method for forming an antifouling coating film that is arranged on a substrate having a surface composed of plastic or rubber and contains a photocatalyst and amorphous titanium peroxide that has substantially no photocatalytic ability, and has the use of The antifouling material of the antifouling coating formed by this method. Background technique [0002] When a photocatalyst such as titanium oxide is irradiated with ultraviolet or visible light, active oxygen will be generated on the surface of the photocatalyst. Therefore, the active oxygen can decompose organic matter such as bacteria, oil, or inorganic gas such as nitrogen oxide; On the surface of the photocatalyst, the hydrophilic groups that are more easily compatible with water will also increase, so the water will spread on the photocatalyst, and pollutants, etc., can float. Therefore, research on the use of photocatalysts for air purification, deodorization, wa...

Claims

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Application Information

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IPC IPC(8): B05D3/06B05D3/14B05D5/00B05D7/00B60C13/00C08J7/00
CPCB05D7/52B60C13/002B05D2201/02B05D3/144B05D3/063C08J7/00B05D5/00C09D5/16
Inventor 平田成邦中沢一真泉本隆二岩崎真一杉生大辅井野文隆
Owner BRIDGESTONE CORP
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