Method of preparing isotropic super-hydrophobic and superoleophobic regular porous silicone rubber with anisotropic structure

A super-hydrophobic, super-oleophobic, isotropic technology, applied in the direction of processing and manufacturing, liquid material additive processing, additive processing, etc., can solve the problems of limiting the application range of reinforced materials, unfavorable material properties, etc., and achieve excellent resistance to mechanical damage effect of ability

Active Publication Date: 2018-05-01
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 purpose of the present invention is to overcome the anisotropic wettability of the surface of the anisotropic structure surface material in the prior art, which is not conducive to the further improvement of the material performance and the limitation of the application range of the reinforcement material, and provides an anisotropic physical structure but has various Isotropic superhydrophobic superoleophobic silicone rubber material

Method used

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  • Method of preparing isotropic super-hydrophobic and superoleophobic regular porous silicone rubber with anisotropic structure
  • Method of preparing isotropic super-hydrophobic and superoleophobic regular porous silicone rubber with anisotropic structure
  • Method of preparing isotropic super-hydrophobic and superoleophobic regular porous silicone rubber with anisotropic structure

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Experimental program
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Effect test

Embodiment 1

[0075] Preparation of Coupling Agent Pretreated Inorganic Nanoparticles

[0076] The inorganic nanoparticles are pre-soaked with a coupling agent with a mass concentration of 0.1-5.0% for 5-60 minutes, and then dried at a temperature of 20-90°C for 5-60 minutes to prepare the inorganic nanoparticles treated with the coupling agent. Concrete preparation raw material and parameter are as follows:

[0077]

Embodiment 2

[0079] Preparation of isotropic superhydrophobic and superoleophobic silicone rubber materials through anisotropic structure

[0080] (1) be that 40.0% vinyl silicone oil, 14.0% mass fraction are prepared by the embodiment 1 of 101 mass fraction, 0.5% Dow Corning RD27 platinum catalyst and 0.5% 1- The ethynyl-1-cyclohexanol inhibitor was uniformly mixed to obtain the first mixture. In the mixing process, the parameters of ball mill mixing are revolution 50r / min, rotation 100r / min, and time 40min.

[0081] (2) To the first mixture prepared in step 1, add a mass fraction of 40.0% hydrogen-containing silicone oil with a mass fraction of 2.0% Si-H groups and a mass fraction of 5.0% polyvinylidene fluoride silicone rubber Auxiliaries, continue to mix evenly, using ball milling parameters for revolution 50r / min, rotation 100r / min, time 60min, to obtain the second mixture. The second mixture was degassed in vacuum for 60 minutes to obtain "ink" for printing. Note: The mass fract...

Embodiment 3

[0085] Preparation of isotropic superhydrophobic and superoleophobic silicone rubber materials through anisotropic structure

[0086] (1) the numbering that the mass fraction is 35.0% divinyl silicone oil, mass fraction is 14.0% is the filler that the embodiment 1 prepares, the mass fraction is the DX-3080 platinum of Guangzhou Daxi Chemical Raw Materials Co., Ltd. of 0.5% The catalyst and the 2-methyl-3-butyn-2-ol inhibitor with a mass fraction of 0.5% were uniformly mixed to obtain a first mixture. In the mixing process, the parameter of grinding and mixing is 100r / min, and the time is 60min.

[0087] (2) To the first mixture prepared in step 1, add a mass fraction of 40.0% hydrogen-containing silicone oil with a mass fraction of 1.5% Si-H group-containing silicone oil and a mass fraction of 10.0% 1H, 1H, 2H, 2H -Perfluorooctyltrimethoxysilane silicone rubber additive, continue to mix evenly, adopt the parameters of grinding and mixing at 100r / min, and the time is 60min, ...

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Abstract

The invention discloses a method of preparing an isotropic super-hydrophobic and superoleophobic regular porous silicone rubber with an anisotropic structure. The method comprises the following stepsof (1) uniformly mixing silicone oil containing C=C double bond, inorganic nanometer filler, a catalyst and an inhibitor to obtain a first mixture; (2) adding hydrogen-containing silicone oil and a silicone rubber additive in the first mixture prepared in the step 1, performing uniform mixing to obtain a second mixture, and performing defoaming to obtain ink for printing; (3) charging the ink in a3D printer, and performing printing according to the anisotropic porous structural characteristics to prepare silicone rubber with a porous structure; and (4) performing pre-solidification treatment,then performing dip coating and drying on the treated silicone rubber in a treating agent solution, performing superthermal hydrogen treatment, taking out the treated silicone rubber for cleaning, and then performing drying again to obtain the isotropic super-hydrophobic and superoleophobic silicone rubber material. According to the method provided by the invention, by combining the silicone rubber with the inorganic nanometer filler, organic combination of a physical structure and the material characteristics is realized by utilizing 3D printing, and the isotropic super-hydrophobic and superoleophobic silicone rubber is prepared.

Description

technical field [0001] The invention belongs to the field of superhydrophobic and superoleophobic porous silicone rubber, and in particular relates to an isotropic superhydrophobic and superoleophobic silicone rubber material directly prepared by 3D printing anisotropic structures. At the same time, the above-mentioned silicone rubber material has excellent mechanical stability, porous super-hydrophobic and super-oleophobic properties, and a preparation method of the silicone rubber is provided. Background technique [0002] The wettability of the material surface is usually determined by the physical structure and chemical composition of the material surface. According to whether the physical structure and / or chemical composition are consistent in different directions, the wettability of the material surface can be divided into isotropic wettability and wettability. Anisotropic wettability. Among them, isotropic wettability means that the wettability of the material surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08L27/16C08L27/18C08K9/04C08K9/06C08K3/04C08K5/5419C08K3/22C08K3/34C08K3/36B29C64/106B29B13/10B29B7/00B33Y10/00
CPCB29B7/002B29B13/10B33Y10/00C08K2003/2241C08K2003/2296C08K2201/003C08K2201/011C08L83/04C08L2205/025C08L2205/03C08L27/16C08K9/06C08K3/36C08K3/34C08K5/5419C08L27/18C08K9/04C08K3/22C08K3/04
Inventor 何周坤喻永连杨建唐昶宇梅军李秀云
Owner CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS
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