A superhydrophobic coating with thermal conductivity and anti-corrosion function and preparation method thereof

A super-hydrophobic coating and anti-corrosion technology, applied in anti-corrosion coatings, coatings, polyurea/polyurethane coatings, etc., can solve problems such as poor thermal conductivity and poor anti-corrosion function, and achieve excellent waterproof performance, good thermal conductivity, and process simple effect

Active Publication Date: 2021-10-01
CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is: to solve the technical problems of poor thermal conductivity and poor anti-corrosion function of the super-hydrophobic coating prepared in the prior art, the present invention provides a super-hydrophobic coating with thermal conductivity and anti-corrosion function and its preparation method , the superhydrophobic coating has excellent waterproof performance, high thermal conductivity and good anti-corrosion function

Method used

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  • A superhydrophobic coating with thermal conductivity and anti-corrosion function and preparation method thereof
  • A superhydrophobic coating with thermal conductivity and anti-corrosion function and preparation method thereof
  • A superhydrophobic coating with thermal conductivity and anti-corrosion function and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Add 6g of silicone rubber (component A of 184 silicone rubber), 0.6g curing agent (component B of 184 silicone rubber), and 7g of hydrophobic alumina (nano-alumina:micron-alumina=2:5) to 16g of n-decane, and After ultrasonic dispersion and mixing for 20 minutes, a uniform suspension was obtained, which was then evenly coated on the surface of the iron sheet, and quickly placed in a 110°C oven for heating for 30 minutes.

Embodiment 2

[0046] Add 4.6g of silicone rubber (component A of 184 silicone rubber), 0.46g of curing agent (component B of 184 silicone rubber), and 7.2g of hydrophobic alumina (nano-alumina:micron-alumina=3:5) to 16g of n-decane , After ultrasonic dispersion and mixing for 20 minutes, a uniform suspension was obtained, and then evenly coated on the surface of the iron sheet, and quickly placed in a 110°C oven for heating for 30 minutes.

Embodiment 3

[0048] Add 2.5g of silicone rubber (component A of 184 silicone rubber), 0.25g of curing agent (component B of 184 silicone rubber), and 7.2g of hydrophobic alumina (nano-alumina:micron-alumina=1:5) to 18g of n-decane , After ultrasonic dispersion and mixing for 20 minutes, a uniform suspension was obtained, and then evenly coated on the surface of the iron sheet, and quickly placed in a 110°C oven for heating for 30 minutes.

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Abstract

The invention relates to a super-hydrophobic coating with heat conduction and anti-corrosion functions and a preparation method thereof, which is prepared by the following main raw materials in parts by weight: 10-35 parts of low surface energy polymers, modified by silane coupling agent 60 to 85 parts of hydrophobic particles, 0.2 to 5 parts of curing agent; the coating preparation method of the present invention comprises the following steps: step 1, proportioning the low surface energy polymer, the hydrophobic particles modified by the silane coupling agent and curing Add an appropriate amount of organic solvent to mix, and mix evenly by ultrasonic dispersion to obtain a suspension; step 2, apply the suspension obtained in step 1 on the surface of the substrate, and after heating and curing or UV curing, remove the solvent at room temperature or under heating Volatilizes to form a super-hydrophobic coating on the surface of the substrate. The low surface energy polymer and the hydrophobic particles modified by the silane coupling agent cooperate with each other to form a thermally conductive network structure inside the coating. The superhydrophobic coating has excellent waterproof performance, high thermal conductivity and good anti-corrosion function.

Description

technical field [0001] The invention relates to the field of preparation of hydrophobic materials, in particular to a super-hydrophobic coating with heat conduction and anti-corrosion functions and a preparation method thereof. Background technique [0002] Electronic equipment provides great convenience for people's production and life. However, the metal circuits of these electronic devices are often corroded or short-circuited when exposed to water, which will cause the equipment to fail and even cause fires and other accidents. Therefore, it is particularly important to perform waterproof treatment on these electronic devices. There are generally two ways to waterproof the surface of electronic equipment: one is to place the electronic equipment in a waterproof device (such as: an outdoor communication box, etc.) to prevent water from entering and achieve a waterproof effect; damage to the device. Therefore, waterproofing of electronic equipment also needs to be combi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D133/04C09D175/14C09D5/08C09D7/62
CPCC08K2003/2227C08K2003/282C08K2003/385C08K2201/003C08K2201/014C09D5/08C09D133/04C09D175/14C09D183/04C09D7/62C08K9/06C08K3/22C08K3/28C08K3/34C08K3/38
Inventor 唐昶宇李永升邵虹帅茂兵刘颖彘姜瑞丰
Owner CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS
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