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Superhydrophobic inorganic material powder and preparation method thereof

An inorganic material and super-hydrophobic technology, applied in the direction of inorganic pigment treatment, chemical instruments and methods, fibrous fillers, etc., to achieve the effect of rich raw material sources, good wear resistance and hydrophobicity, and low cost

Active Publication Date: 2018-08-10
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this method still has difficulties in mass production

Method used

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  • Superhydrophobic inorganic material powder and preparation method thereof
  • Superhydrophobic inorganic material powder and preparation method thereof
  • Superhydrophobic inorganic material powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A commercially available industrial-grade silica hydrosol (purchased from Shandong Baxter New Material Co., Ltd.) with an average particle size of 15nm and a solid content of 20% is used as the raw material. The preparation process is as follows figure 1 As shown, achieved through the following steps:

[0073] 1. Adjust the silica nanoparticle hydrosol to a solid content of 40% through an ultrafiltration membrane system (purchased from Xiamen Kunyang Membrane Technology Co., Ltd.).

[0074] 2. Heat the concentrated silica nanoparticle hydrosol to 85°C and keep it for 24 hours to form a gel.

[0075] 3. Dry the gel in an oven at 200°C for 4 hours.

[0076] 4. Take 100g of the dried gel mass, grind it to a dry rubber powder dispersion with an average particle size of 500 microns, and then disperse it in 1L 95 volume industrial ethanol solution, add 0.5% ethanol volume while stirring Concentrated ammonia solution (concentration of 28% by volume) and trimethylmethoxysilane equivale...

Embodiment 2

[0080] It was prepared by the basic method as in Example 1, except that a commercially available industrial-grade silica hydrosol (purchased from Shandong Baxter New Materials Co., Ltd.) with an average particle size of 100 nm and a solid content of 20% was used as Raw material, the silica nano-particle hydrosol is adjusted to a solid content of 50% through an ultrafiltration membrane system.

Embodiment 3

[0082] A commercially available industrial-grade alumina hydrosol (purchased from Shandong Baxter New Material Co., Ltd.) with an average particle diameter of 100 nm and a solid content of about 20% is used as a raw material.

[0083] Prepared as figure 1 As shown, achieved through the following steps:

[0084] 1. Adjust the alumina nanoparticle hydrosol to a solid content of 50% through the ultrafiltration membrane system.

[0085] 2. Heat the concentrated alumina nanoparticle hydrosol to 85°C and keep it for 48 hours to form a gel.

[0086] 3. Dry the gel in an oven at 200°C for 4 hours.

[0087] 4. Take 100g of the dried gel mass, grind it to a dry rubber powder dispersion with an average particle size of 500 microns, and then disperse it in 1L 95 volume industrial ethanol solution, add 0.5% ethanol volume while stirring Concentrated ammonia solution (concentration of 28% by volume) and trimethylmethoxysilane equivalent to 3% of the weight of the gel mass are reacted at room tempera...

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Abstract

The invention relates to a superhydrophobic inorganic material powder and a preparation method thereof. The preparation method of the superhydrophobic inorganic material powder comprises the followingsteps: gelling a nanoparticle hydrosol to form a nanoparticle gel; and heating the nanoparticle gel to dry the nanoparticle gel in order to obtain a dry gel block; grinding the dry gel block and to prepare a dry gel powder dispersion; and reacting the dry gel powder dispersion with a liquid phase hydrophobic coupling agent in the presence of a catalytic amount of a catalyst, and filtering the obtained reaction product to obtain the superhydrophobic inorganic material powder. The method has the advantages of high efficiency, safety, and simplicity, and the prepared superhydrophobic inorganic material powder has a stable structure, and is superhydrophobic after being deeply ground. The method has the advantages of low requirements on a synthesis device, low cost, environmental protection, and facilitation of large-scale industrial production.

Description

Technical field [0001] The invention relates to a superhydrophobic inorganic material powder and a preparation method thereof, and belongs to the technical field of superhydrophobic powder materials. Background technique [0002] In recent years, the superhydrophobic phenomenon of lotus leaves and certain insect wings in nature has attracted great interest of scientific researchers. The research results show that the superhydrophobic surface existing in nature is the result of the combination of the synergistic effect of micro-nano structure and the low surface free energy of related materials. Superhydrophobic materials are widely used in the fields of waterproof / anti-fouling / oil-water separation. Generally speaking, a superhydrophobic surface can be achieved in two ways: constructing a micro-nano rough structure on the surface of a hydrophobic material or modifying a low surface energy substance on the micro-nano rough structure surface. In recent years, researchers have succ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/30C09C1/36C09C1/40C09C3/04C09C3/12C09D7/40C09D7/62
CPCC09D7/62C09D7/67C09D7/68C09C1/309C09C1/3692C09C1/407C09C3/006C09C3/04C09C3/041C09C3/043C09C3/12C01P2006/90C01P2004/61
Inventor 吴焘王华栋杨小波张冰清吕毅
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH