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Method for preparing silica fiber and silica microsphere composite super-hydrophobic material

A silicon dioxide and superhydrophobic technology, applied in chemical instruments and methods, and other chemical processes, can solve problems such as poor environmental adaptability, easily damaged structure, and poor stability, and achieve good processability, good spherical shape, and moisture absorption. small effect

Inactive Publication Date: 2014-07-23
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problems of narrow application area, poor environmental adaptability, poor stability and easy structure damage of existing hydrophobic materials, and provides a composite superhydrophobic material of silica fiber and silica microspheres preparation method

Method used

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  • Method for preparing silica fiber and silica microsphere composite super-hydrophobic material
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  • Method for preparing silica fiber and silica microsphere composite super-hydrophobic material

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specific Embodiment approach 1

[0019] Specific embodiment one: the preparation method of a kind of silica fiber and silica microsphere composite superhydrophobic material of this embodiment is carried out according to the following steps:

[0020] 1. Clean the silica fiber with hydrochloric acid and deionized water in sequence, then clean the silica fiber with absolute ethanol and deionized water in sequence, repeat the operation in this step for 2 to 4 times, and then dry;

[0021] 2. Submerge the silica fiber after step 1 in the toluene solution of KH-550 for 5h to 7h, then treat it in hydrochloric acid for 0.5h to 1.5h, wash with deionized water and dry to obtain silica fiber; The ratio of the mass of silica fiber obtained in the step 1 to the volume of the toluene solution of KH-550 is 100 mg: (20-100) mL, and the volume fraction of KH-550 in the toluene solution of KH-550 is 1% , wherein the ratio of the mass of silica fiber obtained in step 1 to the volume of hydrochloric acid is 100 mg: (20-100) mL, ...

specific Embodiment approach 2

[0027] Embodiment 2: This embodiment differs from Embodiment 1 in that: Step 1 repeats the operation in this step 3 times, and other steps and parameters are the same as Embodiment 1.

specific Embodiment approach 3

[0028] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: in step two, the silica fiber after step one is immersed in the toluene solution of KH-550 for 6h, then treated in hydrochloric acid for 1h, other The steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a method for preparing a silica fiber and silica microsphere composite super-hydrophobic material, relating to a preparation method of a super-hydrophobic material. The method is used for solving the problems of existing hydrophobic materials that the application range is narrow, the environmental adaptability is poor, the stability is poor and the structure is easily damaged. The method comprises the steps of pre-treating silica fibers, treating the silica fibers by using a silane coupling agent and hydrochloric acid respectively, pre-treating silica microspheres, treating the silica microspheres by using isopropanol, putting the treated silica fibers into a silica microsphere suspension, and adding a fluorosilane n-hexanol solution after a silica fiber / silica microsphere composite material is obtained, thereby obtaining the silica fiber and silica microsphere composite super-hydrophobic material. The silica fiber and silica microsphere composite super-hydrophobic material prepared by the method has the contact angle of 152 DEG, has excellent super-hydrophobic properties, and is strong in heat resistance and good in corrosion resistance. The method can be used for preparing super-hydrophobic materials.

Description

technical field [0001] The invention relates to a preparation method of a superhydrophobic material. Background technique [0002] In recent years, the development of superhydrophobic materials has made it more and more widely used in people's daily life and industrial and agricultural production, especially in antifouling, waterproof, antifog, antifreeze, self-cleaning and lossless transmission of liquids. Wait for some fields. Therefore, the preparation of various types of superhydrophobic materials has attracted extensive attention. The wettability of the material surface is determined by the surface roughness and surface chemical composition. Generally, there are two methods for the preparation of superhydrophobic materials, one is to modify low surface energy substances on rough surfaces, and the other is to construct a certain surface roughness on the surface of hydrophobic materials. As we all know, silica fiber has the following characteristics: strong heat resist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18
Inventor 孙立国祝君龙常金辉汪成赵冬梅
Owner HEILONGJIANG UNIV
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