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Silicon-carrying microsphere, copper net for separating oil from water and preparation method thereof

A technology of silicon microspheres and microspheres, which is applied in the preparation of microspheres, microcapsule preparations, and separation of immiscible liquids, etc., can solve the problems of high price, little research on superhydrophobic coatings, and limited application of superhydrophobic materials, etc. The effect of uniform particle size, strong hydrophobicity and convenient recycling

Pending Publication Date: 2017-05-10
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, these methods all use expensive fluorine-containing silane coupling agents with extremely low surface energy to modify the surface of the substrate with low surface energy, which also limits the application of superhydrophobic materials to a certain extent.
[0005] At present, the research on the preparation of superhydrophobic coatings by micro-nano composite structure microspheres mainly focuses on SiO coatings made of hundreds of nanometers and tens of nanometers. 2 or TiO 2 Micro / nanoparticles provide surface roughness, and there are relatively few studies on other multi-scale micro / nanoparticles to construct superhydrophobic coatings

Method used

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  • Silicon-carrying microsphere, copper net for separating oil from water and preparation method thereof
  • Silicon-carrying microsphere, copper net for separating oil from water and preparation method thereof
  • Silicon-carrying microsphere, copper net for separating oil from water and preparation method thereof

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preparation example Construction

[0022] A preparation method of silicon-loaded microspheres, comprising the steps of:

[0023] Preparation steps of polymer microspheres: adding polymer monomers, initiators, dispersants and crosslinking agents into ethanol / water mixed solution to prepare polymer microspheres, blowing nitrogen gas for 25-35min, and then heating at 70-75°C Oil bath reaction, after the reaction, disperse and centrifuge with water and ethanol for 2-5 times respectively.

[0024] Adding polymer monomers, initiators, dispersants and cross-linking agents to the ethanol / water mixed solution is beneficial to the mixing of raw materials, passing nitrogen gas to form a nitrogen protection, which is beneficial to the formation of polymer microspheres, 70-75 ° C The oil bath reaction accelerates the formation of microspheres.

[0025] Further, in a preferred embodiment of the present invention, the polymer monomers for preparing polymer microspheres include styrene, methyl methacrylate, ethyl methacrylate...

Embodiment 1

[0038] A preparation method of silicon-loaded microspheres, comprising the steps of:

[0039] Preparation steps of polymer microspheres: (1) The preparation of the first polymer microspheres will account for 5% monomer styrene, methyl methacrylate and ethyl methacrylate in the mass of the total reaction system; % initiator azobisisobutyronitrile, azobisisoheptanonitrile; relative to monomer mass 1% crosslinking agent divinylbenzene, diethylene glycol diacrylate, triethylene glycol diacrylate; And 10% dispersant polyvinylpyrrolidone relative to the mass of the monomer; add it to the ethanol / water mixed solution with a volume fraction of 20%, stir evenly, feed nitrogen for 25min, and then react in an oil bath at 70°C for 10h; react After the end, disperse and centrifuge twice with water and ethanol respectively to obtain the first micron-sized polymer microspheres;

[0040] (2) The preparation of the second polymer microspheres will account for 5% of the total reaction system m...

Embodiment 2

[0044] A preparation method of silicon-loaded microspheres, comprising the steps of:

[0045] Polymer microsphere preparation steps: (1) preparation of the first polymer microsphere, will account for 7% monomer styrene of total reaction system mass; Relative to the initiator azobisisoheptanonitrile of 1.5% of monomer mass; 1.5% of the cross-linking agent based on monomer mass includes divinylbenzene, diethylene glycol diacrylate, triethylene glycol diacrylate, polyethylene glycol diacrylate, dipropylene glycol diacrylate, tripropylene glycol Diacrylate, 1,4-Butanediol Diacrylate, 1,6 Hexanediol Diacrylate, Neopentyl Glycol Diacrylate, 2(Propoxylated) Neopentyl Glycol Diacrylate, Ethoxylated Bisphenol A diacrylate, (ethoxy) bisphenol fluorene diacrylate, 6 (ethoxy) bisphenol fluorene diacrylate, tricyclodecane dimethanol diacrylate; and a dispersion of 12% relative to the monomer mass Add polyvinylpyrrolidone; add it to the mixed solution of ethanol / water with a volume fractio...

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Abstract

The invention relates to a silicon-carrying microsphere, a copper net for separating oil from water and a preparation method thereof and belongs to the technical field of a new material for modifying / absorbing a material surface. The preparation method for the silicon-carrying microsphere comprises the following steps: preparing a polymeric microsphere, enveloping the polymeric microsphere and modifying the silicon-carrying microsphere. The preparation method for the silicon-carrying microsphere is simple in process and the prepared silicon-carrying microsphere has uniform granularity and excellent lyophobic property and is beneficial to dispersion. The preparation method for the copper net for separating oil from water comprises the following steps: spraying a double-component adhesive onto the copper net, thereby acquiring a first copper net, and then spraying the prepared silicon-carrying microsphere onto the first copper net, thereby acquiring the copper net for separating oil from water. The copper net prepared according to the method has a better oil-water separating effect and can be conveniently recycled and reused.

Description

technical field [0001] The invention relates to the technical field of material surface modification / adsorption new materials, and in particular to a silicon-loaded microsphere, a copper mesh for oil-water separation and a preparation method thereof. Background technique [0002] With the occurrence of offshore oil spills and the improvement of people's awareness of environmental protection, how to solve offshore oil pollution has become a hot and difficult point in recent scientific research. The earliest oil-water separation equipment is based on physical diffusion method, coagulation method, biodegradation method, in-situ combustion method and skimming method, etc. However, these methods have the problems of not being able to effectively recover the oil spill or causing secondary pollution. Since Jiang Lei et al first reported superaffinity materials for oil-water separation in 2004, superhydrophobic materials have attracted the attention of many scholars. Studies have ...

Claims

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Application Information

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IPC IPC(8): C08J7/00C08J7/06C08J7/04C08F212/08C08F220/14C08F220/18C08F212/36C08F222/14C08F222/20C09D125/14C09D133/10B01J13/02B01D17/02C08L25/14C08L33/10
CPCB01D17/02B01J13/02C09D133/10C08F212/08C08F220/14C08F220/18C08J7/00C08J7/04C08J7/06C08J2333/10C08J2325/14C08L25/14C08F222/102C08F212/36
Inventor 陈广学王青余明光陈奇峰田君飞
Owner SOUTH CHINA UNIV OF TECH
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