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A bionic self-lubricating surface and its preparation and application

A self-lubricating, mass fraction technology, used in coatings, polyurea/polyurethane coatings, etc., can solve the problems of lubricating oil loss, difficult-to-smooth porous surface preparation, etc., to achieve good durability, innovative methods, and simple preparation methods. Effect

Active Publication Date: 2017-12-01
泉州三欣新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems to be solved in the application of smooth porous surfaces imitating the Nepenthes effect. etc.), involving specific equipment, harsh conditions and a long cycle, it is difficult to prepare a large area of ​​smooth porous surface imitating the Nepenthes effect; The super-smooth surface performance of its imitation pitcher plant will gradually change to the super-hydrophobic surface imitation of lotus leaf effect.

Method used

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  • A bionic self-lubricating surface and its preparation and application
  • A bionic self-lubricating surface and its preparation and application

Examples

Experimental program
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Effect test

Embodiment 1

[0033] By mass parts, 100 mass parts of SiO 2 Airgel particles and 900 parts by mass of silicone oil lubricating liquid are mixed, stirred evenly, and filtered to obtain silicone oil-loaded airgel particles, which are functional particles capable of slow-release silicone oil;

[0034] According to the number of parts by mass, 100 parts by mass of silicone polyurethane prepolymer, 10 parts by mass of 3-aminopropyltriethoxysilane, and 0.5 parts by mass of catalyst were stirred and mixed under vacuum, and after the temperature was raised to 40°C, the stirring was continued for 20 minutes. Obtain an alkoxysilane-terminated silicone polyurethane resin; add 100 parts by mass of slow-release silicone oil functional particles, 5 parts by mass of a leveling agent, and 2 parts by mass of a defoamer in the silicone polyurethane resin terminated by an alkoxysilane, After stirring for 200 minutes under vacuum, the material is discharged to obtain a curable self-lubricating resin; the curab...

Embodiment 2

[0037] By mass parts, 100 mass parts of SiO 2 Airgel particles and 1000 parts by mass of silicone oil lubricating liquid are mixed, stirred evenly, and filtered to obtain silicone oil-loaded airgel particles, which are functional particles capable of slow-release silicone oil;

[0038] According to the number of parts by mass, 100 parts by mass of silicone polyurethane prepolymer, 3 parts by mass of 3-aminopropyltrimethoxysilane, and 0.8 parts by mass of catalyst were stirred and mixed under vacuum, and after the temperature was raised to 80°C, stirring was continued for 70 minutes to obtain Alkoxysilane-terminated silicone polyurethane resin; add 200 parts by mass of slow-release silicone oil functional particles, 6 parts by mass of leveling agent, and 1 part by mass of defoamer in the alkoxysilane-terminated silicone polyurethane resin, vacuum After stirring for 100 minutes, the material is discharged to obtain a curable self-lubricating resin; the curable self-lubricating r...

Embodiment 3

[0041] By mass parts, 100 mass parts of SiO 2 Airgel particles are mixed with 800 parts by mass of silicone oil lubricating liquid, stirred evenly, and filtered to obtain silicone oil-loaded airgel particles, which are functional particles capable of slow-release silicone oil;

[0042]According to the number of parts by mass, 100 parts by mass of silicone polyurethane prepolymer, 100 parts by mass of N-aminoethyl-γ-aminopropyltrimethoxysilane, and 0.1 parts by mass of catalyst were stirred and mixed under vacuum, and after the temperature was raised to 50°C, Continue stirring for 60 minutes to obtain an alkoxysilane-terminated silicone polyurethane resin; in the alkoxysilane-terminated silicone polyurethane resin, add 5 parts by mass of slow-release silicone oil functional particles, 5 parts by mass of a leveling agent, and 5 parts by mass of part of defoamer, stirred under vacuum for 10 minutes, and discharged to obtain a curable self-lubricating resin; the curable self-lubri...

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Abstract

The invention discloses a bionic self-lubricating surface as well as a preparation method and application. In a mode that silicon oil is loaded by aerogel, a silicon oil lubricating liquid with a lubrication effect is sealed into an organic silicon polyurethane substrate, with the combination of adsorption of an aerogel porous structure and migration of the silicon on the surface of the organic silicon polyurethane, a function that the silicon oil lubricating oil is slowly released on the surface of the organic silicon polyurethane substrate is achieved, and a self-lubricating effect is achieved. By adopting the bionic self-lubricating surface and the preparation method disclosed by the invention, the defect that lubricating oil is large in consumption when a smooth porous surface which has a common nepenthes effect is established by using an infiltration method can be avoided, moreover, no rough surface needs to be established in the preparation method, and the prepared self-lubricating surface is good in durability; the bionic self-lubricating surface is simple in preparation method, creative in method, good in implementation property and relatively beneficial to industrial application.

Description

technical field [0001] The invention relates to a bionic self-lubricating surface, in particular to a bionic self-lubricating surface applicable to marine antifouling materials, anti-frost materials, anti-icing materials, and oil-water separation materials, as well as its preparation method and application. Background technique [0002] The self-lubricating surface of biomimetic Nepenthes has the advantages of anti-adhesion of organic liquids, complex liquids (crude oil, blood, etc.), ice and biofilms, good compression stability, and self-repairing. It has become a major research field of new materials in recent years. hotspot. The self-lubricating surface of biomimetic Nepenthes can reach molecular level smoothness, which can significantly reduce the sliding angle and hysteresis angle of droplets, and can effectively inhibit the adhesion of various substrates including grease, blood, ice and biofilm. It is used in self-cleaning coatings, It has broad application prospects ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/12
CPCC09D7/62C09D7/63C09D7/65C09D175/04C09D183/04C08L83/04C08K3/36C08K5/544C08L75/04
Inventor 彭新艳刘云晖
Owner 泉州三欣新材料科技有限公司
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