Preparation method of rubber-based composite material with super-hydrophobic surface

A technology of super-hydrophobic surface and composite materials, which is applied in the field of preparation of rubber-based composite materials with super-hydrophobic surfaces, can solve problems such as no research reports on super-hydrophobic rubber materials, and achieve large-scale production and application, excellent moisture Effect of wet performance and high mechanical strength

Inactive Publication Date: 2013-04-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for silicone rubber and fluororubber, there have been no research reports on superhydrophobic rubber materials at home and abroad.

Method used

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  • Preparation method of rubber-based composite material with super-hydrophobic surface
  • Preparation method of rubber-based composite material with super-hydrophobic surface
  • Preparation method of rubber-based composite material with super-hydrophobic surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0023] A method for preparing a rubber-based super-hydrophobic surface, comprising the steps of:

[0024] (1) The aluminum sheet is corroded in a NaOH solution with a mass concentration of 20% for 80 min, then cleaned with deionized water, and dried for subsequent use;

[0025] (2) Put the mixed rubber on the corroded aluminum sheet, vulcanize it on a flat vulcanizer, the vulcanization temperature is 143°C, and the vulcanization time Tc90 is measured by a vulcanization meter. After the sample is cooled, the aluminum sheet and the rubber are peeled off to obtain a rubber-based composite material with a micro-nano rough structure on the surface. In terms of parts by mass, the compounded rubber formula is as shown in Table 1;

[0026] (3) On the rough surface of the peeled rubber-based composite material, brush the ethanol solution of 0.5% hydroxy silicone oil in mass concentration, react in an oven at 80 ° C for 3 hours, take it out and cool it, and obtain a rubber with a super...

Embodiment 1

[0034] The infrared spectrograms before and after grafting of materials with hydroxy silicone oil in embodiment 1 can be found in figure 1 , the infrared spectrum of the material surface after grafting is at 1259cm -1 The C-H symmetrical deformation vibration peak on the silicon methyl group appeared, indicating that the surface of the rubber matrix had been grafted with hydroxyl silicone oil.

Embodiment 3

[0035] The surface scanning electron microscope (SEM) figure of the rubber composite material surface with superhydrophobic surface performance in embodiment 3 sees figure 2 . It can be clearly seen that the rubber surface has a fine micro-nano rough structure, which is one of the necessary conditions for a super-hydrophobic surface.

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Abstract

The invention discloses a preparation method of a rubber-based composite material with the super-hydrophobic surface. The preparation method comprises the following steps: firstly placing an aluminum sheet into chemical corrosive liquid to corrode for 2-120 minutes, washing the corroded aluminum sheet by deionized water, drying for standby; placing a mixed rubber compound onto the corroded aluminum sheet, then using a press vulcanizer to vulcanize or tablet the sheet; separating the cooled aluminum sheet from the rubber; brush coating an ethanol solution of a low surface energy substance on the rough surface of the separated rubber-based composite material, taking reaction for 1-36 hours at the temperature of 40-200 DEG C, and at last obtaining the rubber-based composite material with the micro-nano coarse structure super-hydrophobic surface. The surface water contact angle of the super-hydrophobic rubber-based composite material is more than 150 degrees; the rolling angle is smaller than 8 degrees; the super-hydrophobic rubber-based composite material has excellent comprehensive properties such as high elasticity, high abrasion resistance and high strength, is simple in preparation technology and beneficial to large-scale production and application.

Description

technical field [0001] The invention relates to a preparation method of a material with a super-hydrophobic surface, in particular to a preparation method of a rubber-based composite material with a super-hydrophobic surface property. Background technique [0002] A superhydrophobic surface refers to a surface with a static contact angle of greater than 150° and a rolling angle of less than 10° with water. Because of its super-hydrophobic, low surface energy, self-cleaning, water and drag reduction, anti-icing fog, dust-proof and other performance characteristics, it has broad application prospects in construction, transportation, electric power, electrical appliances, chemical industry, military industry and daily life. . [0003] Superhydrophobic materials are a class of biomimetic materials with superhydrophobic surfaces, which have low surface energy and micro-nano rough structures. The preparation principle of superhydrophobic materials is to build micro-nano rough st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08L7/00C08L9/06C08L9/00C08L23/16C08L23/22C08L11/00C08L9/02C08L33/04C08L71/00
Inventor 贾志欣钱立海罗远芳贾德民
Owner SOUTH CHINA UNIV OF TECH
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