Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Preparation method of durable hydrophobic coating

A technology of hydrophobic coating and durability, applied in the field of preparation of durable hydrophobic coating, can solve the problems of high cost, harsh preparation conditions, inability to meet long-term outdoor use, etc., and achieve the effect of good super-hydrophobic performance

Inactive Publication Date: 2019-01-25
张家港市东威新材料技术开发有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Scholars at home and abroad have prepared a large number of artificial superhydrophobic coating surfaces by using hydrophobic materials to construct micro-nano rough structures and modifying low-surface-energy substances on the surface of micro-nano rough structures. Glue method, phase separation method, template method, etching method, chemical vapor deposition method, electrochemical deposition method, self-assembly method, electrospinning method, etc.) are mostly expensive and have harsh preparation conditions, making it difficult to achieve large-area coating. Moreover, the mechanical strength and durability of the obtained superhydrophobic coatings are usually poor, which cannot meet the requirements of long-term outdoor use, which limits the application of such coating materials in many fields.

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

preparation example Construction

[0020] The invention discloses a preparation method of a durable hydrophobic coating to overcome the deficiencies in the prior art.

[0021] To achieve the above object, the present invention provides the following technical solutions:

[0022] A method for preparing a durable hydrophobic coating, comprising:

[0023] (1) In parts by weight: weigh 100-200 parts of silicone rubber and silicone resin mixture, 30-50 parts of white carbon black, 20-30 parts of aluminum hydroxide, 5-10 parts of inorganic nanoparticles, 1-20 parts of methyl silicone oil 10 parts, placed at 100-150° C. and kneaded for 6-10 hours to obtain mixture A, wherein the inorganic nanoparticles are a mixture of nano-silicon dioxide and light calcium carbonate;

[0024] (2) In parts by weight, mix 30 to 50 parts of the mixture A with 100 to 150 parts of a mixed solvent, add 1 to 5 parts of a dispersant, disperse at a speed of 500 to 800 r / min for 3 to 5 hours, add 2 ~4 parts of coupling agent, 1~3 parts of de...

Embodiment 1

[0031] (1) In parts by weight: weigh 100 parts of silicone rubber and silicone resin mixture with a weight ratio of 1:1.5, 30 parts of white carbon black, 20 parts of aluminum hydroxide, 5 parts of inorganic nanoparticles, 1 part of methyl silicone oil, Mixing was carried out at 100° C. for 6 hours to obtain a mixture A, wherein the inorganic nanoparticles were a mixture of nano-silica and light calcium carbonate at a weight ratio of 1:3;

[0032] (2) In parts by weight, mix 30 parts of the mixture A with 100 parts of mixed solvent, add 1 part of dispersant, disperse at a speed of 500r / min for 3 hours, add 2 parts of coupling agent, 1 part of defoamer , 0.5 parts of leveling agent, 2 parts of pigments and fillers, and continue to disperse for 1 hour to obtain coating mixture B;

[0033] (3) Apply the above-mentioned coating mixture B on the treated glass surface, and cure for 10 h at room temperature to obtain a durable hydrophobic coating with a thickness of 0.1 mm.

Embodiment 2

[0035] (1) In parts by weight: weigh 150 parts of silicone rubber and silicone resin mixture with a weight ratio of 1:1.5, 40 parts of white carbon black, 25 parts of aluminum hydroxide, 7.5 parts of inorganic nanoparticles, 5 parts of methyl silicone oil, Mixing at 130°C for 8 hours to obtain a mixture A, wherein the inorganic nanoparticles are a mixture of nano-silica and light calcium carbonate at a weight ratio of 1:3;

[0036] (2) In parts by weight, mix 40 parts of the mixture A with 120 parts of mixed solvent, add 3 parts of dispersant, disperse at a speed of 700r / min for 4 hours, add 3 parts of coupling agent, 2 parts of defoamer , 0.6 parts of leveling agent, 4 parts of pigments and fillers, and continued to disperse for 2 hours to obtain coating mixture B;

[0037] (3) Apply the above-mentioned coating mixture B on the treated glass surface, and cure at room temperature for 15 hours to obtain a durable hydrophobic coating with a thickness of 0.2 mm.

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a durable hydrophobic coating. The preparation method of the durable hydrophobic coating comprises the following steps: (1) weighing 100 to 200 parts byweight of silicon rubber and silicon resin mixture, 30 to 50 parts by weight of white carbon black, 20 to 30 parts by weight of aluminum hydroxide, 5 to 10 parts by weight of inorganic nanoparticlesand 1 to 10 parts by weight of methylsilicone oil to obtain a mixture A; (2) mixing 30 to 50 parts by weight of mixture A and 100 to 150 parts by weight of mixed solvent and adding 1 to 5 parts by weight of dispersing agent to obtain a coating mixture B; and (3) coating the surface of the treated glass with the coating mixture B and solidifying under the normal temperature condition to obtain thedurable hydrophobic coating with a certain thickness. The inorganic nanoparticles in the coating provide micro-roughness, so that the coating has high super-hydrophobic property.

Description

technical field [0001] The invention relates to the technical field of coating materials, in particular to a preparation method of a durable hydrophobic coating. Background technique [0002] Superhydrophobic is a new type of special surface technology, which can endow the "coated parts" with special properties such as self-cleaning, anti-fogging, water repellency, anti-corrosion, anti-icing and underwater drag reduction. , automotive, aerospace, new energy, national defense and other high-tech fields have attracted much attention, and it has also aroused great interest in the research of superhydrophobic coating materials. [0003] Scholars at home and abroad have prepared a large number of artificial superhydrophobic coating surfaces by using hydrophobic materials to construct micro-nano rough structures and modifying low-surface-energy substances on the surface of micro-nano rough structures. Glue method, phase separation method, template method, etching method, chemical...

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): C09D183/04C09D7/61
CPCC09D183/04C08K2003/2227C08K2003/265C08K2201/011C08K2201/014C08L2205/025C08L2205/035C09D7/61C08L83/04C08K3/36C08K3/22C08K3/26C08K13/02
Inventor 赵云龙
Owner 张家港市东威新材料技术开发有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com