Preparation method of intelligent self-repairing boundary surface material

A surface material and self-repairing technology, applied in chemical instruments and methods, botanical equipment and methods, antifouling/underwater coatings, etc., can solve the problems of complex equipment, high cost, strict preparation process requirements, etc., and achieve the cost of preparation Low, simple preparation process, improve the effect of hydrophilic and hydrophobic characteristics

Pending Publication Date: 2022-03-15
苏州优纬膜环保材料科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The preparation method of traditional composite materials requires more complex equipment, high cost and strict requirements on the preparation process

Method used

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  • Preparation method of intelligent self-repairing boundary surface material
  • Preparation method of intelligent self-repairing boundary surface material
  • Preparation method of intelligent self-repairing boundary surface material

Examples

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preparation example Construction

[0036] A method for preparing an intelligent surface-interface self-repairing functional film material, the specific steps are as follows:

[0037] Step 1, the present invention uses metal aluminum, zinc metal powder or oxide and calcium carbide, graphite under the condition of polyglutamic acid, polyethylene glycol (PEG) as dispersant, utilizes ball milling etc. to carry out microstructure processing to prepare modifier; Then the modifier is loaded on the surface of the membrane base by spraying and chemical impregnation; after immobilization treatment, the distribution of hydrophilic and hydrophobic groups on the surface is adjusted to prepare a smart material with pressure-sensing excitation of free radicals to clean organic fouling. Mainly use metals or oxides of aluminum, iron, zinc and other elements in proportion as raw materials, put them into a ball mill or a reamer crusher, and ball mill for 1-8 hours at a speed of 300-1000, and then use 0.01=0.1% Medium molecular we...

Embodiment 1

[0042] 1) Put the aluminum and zinc oxide powders into a ball mill with a mass ratio of 2:3, add the flake graphite with a mass ratio of 0.5-3% above and mix evenly;

[0043] 2) Put the mixture into a ball mill, and perform ball milling at a speed of 500 rpm for 1 hour;

[0044] 3) Disperse and dilute with ethanol, spray on the film base material, and obtain the product after curing.

[0045] A series of characterizations were carried out on the prepared materials, transmission electron microscope TEM such as figure 1 , indicating that the material is a layered structure; the material was characterized by XRD (X-ray diffraction), and the spectrum is as follows figure 2 Shown; ESR (electron paramagnetic spectroscopy) test is carried out after DMPO captures free radical, the result is as follows image 3 As shown, it is qualitatively illustrated that hydroxyl radicals and superoxide radicals with oxidative degradation effects are produced in the ball milling process; the cont...

Embodiment 2

[0048] 1) Put aluminum, zinc, and iron oxide powders in a ball milling kettle with a mass ratio of 2:3:2, add the above-mentioned graphene oxide of 0.5-3% by mass and mix evenly;

[0049] 2) Put the mixture into a ball mill, and perform ball milling at a speed of 500 rpm for 1 hour;

[0050] 3) Add deionized water with a solid-to-liquid ratio of 1:2, and pass in hydrogen peroxide as an oxidizing agent for wet ball milling for 2 hours.

[0051] 4) Using the membrane as the substrate, the product is collected by suction filtration and drying.

[0052] Add catalyst and ultrasonic vibration to degrade Bacillus cereus, Escherichia coli, Staphylococcus aureus, and Salmonella, and the removal rate is as columnar Figure 6 shown.

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Abstract

The invention discloses a preparation method of an intelligent self-repairing boundary surface material, which comprises the following steps: adding metal or oxide as a raw material in proportion, and grinding under the action of ball milling to obtain a modifier product; the suspended particles are rinsed through an air flotation device of a microbubble reactor of ozone, and then the suspended particles in the aqueous solution are removed through microbubble oxidation flotation; precipitating, filtering and drying to obtain a composite nano modifier, and loading the modifier on the surface of the membrane base by utilizing spraying and chemical dipping; the preparation process is simple, the preparation of the material can be realized in one step through the processes of ball milling, mechanical reamer stirring or wet milling, the preparation cost is relatively low, and meanwhile, the used raw materials are easy to prepare, the cost is low, and the cost is low. Zinc salt, calcium salt, ferric salt and the like are environment-friendly, and other pollutants such as waste water and waste materials are not generated in the preparation process.

Description

technical field [0001] The invention relates to the field of new materials, the degradation of organic pollutants and the application of antibacterial, in particular to a preparation method of an intelligent self-repairing modifier and a membrane material. Background technique [0002] The preparation method of traditional composite materials requires more complex equipment, high cost and strict requirements on the preparation process. As a new type of functional material, intelligent membrane material, its structure, effective pore size and other properties will change with changes in external stimuli (such as temperature, pressure, pH, ionic strength, etc.) during use, realizing intelligent feedback. The current organic and inorganic pressure-sensing materials have broad application prospects in the fields of material analysis, detection, separation and purification. For example, nano-zinc oxide film has remarkable low-voltage varistor properties, and a small change in vo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/02B01D67/00C08J7/06C09D1/00C09D5/14A01N59/16A01N25/34A01P1/00
CPCB01D71/02B01D67/0079C08J7/06C09D1/00C09D5/14A01N59/16A01N25/34B01D2325/48
Inventor 马伟朱婉萍
Owner 苏州优纬膜环保材料科技有限公司
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