Self-cleaning coating material for castings and preparation method thereof

A coating material and self-cleaning technology, applied in coatings, anti-corrosion coatings, anti-fouling/underwater coatings, etc., can solve the problems of poor self-cleaning, low adhesion, falling off, etc., and achieve improved pollution resistance and improved Scratch resistance and the effect of maintaining stability

Inactive Publication Date: 2018-10-02
SUZHOU JIEDERUI PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing coating materials have low adhesion on the surface of the metal substrate, poor self-cleaning property, and are prone to scratches and peeling off during the collision process. Therefore, it is necessary to further develop the existing coating materials , to further improve the comprehensive performance of coating materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A self-cleaning coating material for castings, prepared from the following raw materials in parts by weight: 50 parts of modified acrylic resin, 14 parts of polytetrafluoroethylene emulsion, 6 parts of trimethylolpropane oleate, 4 parts of nano-titanium dioxide 3 parts, 3 parts of nano-silicon carbide, 4.2 parts of nano-zinc oxide, 3.5 parts of nano-cerium oxide, 2 parts of γ-aminopropyltriethoxysilane, 3.2 parts of 2-hydroxy-4-methoxybenzophenone, mixed 2 parts of antioxidant, 1.2 parts of dodecyl 3-(2,2,6,6-tetramethylpiperidine 4-amino)propionate, 1.8 parts of tris(2-hydroxyethyl)isocyanurate, 1.6 parts of antibacterial and antifungal agent, 0.7 parts of leveling agent EFKA-3772, and 15 parts of thinner.

[0031] The mixed antioxidant is antioxidant 168 and antioxidant 1010 with a mass ratio of 1:1.

[0032] The antibacterial and antifungal agent is copper pyrithione.

[0033] The diluent is benzotrifluoride.

[0034] The particle size of the nano-titanium dioxide...

Embodiment 2

[0042] A self-cleaning coating material for castings, prepared from the following raw materials in parts by weight: 40 parts of modified acrylic resin, 10 parts of polytetrafluoroethylene emulsion, 4 parts of trimethylolpropane oleate, 3 parts of nano-titanium dioxide 2 parts, 2 parts of nano-silicon carbide, 2.5 parts of nano-zinc oxide, 2 parts of nano-cerium oxide, 1 part of γ-aminopropyltriethoxysilane, 1.5 parts of 2-hydroxy-4-methoxybenzophenone, mixed 1 part of antioxidant, 0.5 part of dodecyl 3-(2,2,6,6-tetramethylpiperidine 4-amino)propionate, 1 part of tris(2-hydroxyethyl)isocyanurate, 0.8 parts of antibacterial and antifungal agent, 0.3 parts of leveling agent EFKA-3772, and 10 parts of thinner.

[0043] The mixed antioxidant is antioxidant 168 and antioxidant 1010 with a mass ratio of 1:1.

[0044] The antibacterial and antifungal agent is copper pyrithione.

[0045] The diluent is benzotrifluoride.

[0046] The particle size of the nano-titanium dioxide, nano-s...

Embodiment 3

[0054] A self-cleaning coating material for castings, prepared from the following raw materials in parts by weight: 45 parts of modified acrylic resin, 12 parts of polytetrafluoroethylene emulsion, 5 parts of trimethylolpropane oleate, 3.5 parts of nano titanium dioxide 2.5 parts of nano-silicon carbide, 3 parts of nano-zinc oxide, 3 parts of nano-cerium oxide, 1.5 parts of γ-aminopropyltriethoxysilane, 2 parts of 2-hydroxy-4-methoxybenzophenone, mixed 1.5 parts of antioxidant, 1 part of dodecyl 3-(2,2,6,6-tetramethylpiperidine 4-amino)propionate, 1.5 parts of tris(2-hydroxyethyl)isocyanurate, Antibacterial and antifungal agent 1.5 parts, leveling agent EFKA-3772 0.5 parts, thinner 12 parts.

[0055] The mixed antioxidant is antioxidant 168 and antioxidant 1010 with a mass ratio of 1:1.

[0056] The antibacterial and antifungal agent is copper pyrithione.

[0057] The diluent is benzotrifluoride.

[0058] The particle size of the nano-titanium dioxide, nano-silicon carbide,...

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Abstract

The invention provides a self-cleaning coating material for castings. The self-cleaning coating material is prepared from the following raw materials by weight: 40-60 parts of modified acrylic resin,10-18 parts of a polytetrafluoroethylene emulsion, 4-9 parts of trimethylolpropane oleate, 3-5 parts of nano titanium dioxide, 2-4 parts of nano silicon carbide, 2.5-5 parts of nano zinc oxide, 2-5 parts of nano cerium oxide, 1-3 parts of gamma-aminopropyl triethoxysilane, 1.5-4 parts of 2-hydroxy-4-methoxybenzophenone, 1-3 parts of a mixed antioxidant, 0.5-2 parts of 3-(2, 2, 6, 6-tetramethylpiperidine-4-amino)dodecyl propionate, 1-2.5 of tri(2-hydroxyethyl)isocyanurate, 0.8-2.5 parts of an antibacterial mould inhibitor, 0.3-1 part of a leveling agent EFKA-3772, and 10-20 parts of a diluent.The coating material has the advantages of high mechanical strength, good self-cleanliness and strong ageing resistance, thus having wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of coating materials, and in particular relates to a self-cleaning coating material for castings and a preparation method thereof. Background technique [0002] At present, castings generally use metal materials such as copper, stainless steel, and alloys as the base material, but because the metal surface is exposed to the air during long-term use, due to the nature of the material itself, it is easy to react with oxygen and moisture in the air, causing the surface Corrosion occurs and affects the appearance. Moreover, the surface of castings that are often exposed to the outside is seriously polluted, which will produce a large amount of dust and oil stains, which will affect the quality and service life of castings. At present, the most common treatment methods for metal surfaces are: electroplating or painting. The electroplating process is complex and produces a large amount of waste water and waste g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/24C09D127/18C09D7/61C09D7/63C09D5/08C09D5/14C09D5/16
CPCC08K2003/2213C08K2003/2241C08K2003/2296C08K2201/011C08L2201/08C09D5/08C09D5/14C09D5/1687C09D7/61C09D7/63C09D133/24C08L27/18C08K13/02C08K3/22C08K3/34C08K5/544C08K5/132C08K5/3435
Inventor 姚振红
Owner SUZHOU JIEDERUI PRECISION MACHINERY
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