Preparation method of strawberry-type polystyrene-silicon dioxide nanocomposite microspheres

A silica and polystyrene technology, applied in the field of nanocomposite material preparation, can solve the problems of difficult operation, complicated experiments, low coating rate of inorganic matter of composite microspheres, etc.

A silica and polystyrene technology, applied in the field of nanocomposite material preparation, can solve the problems of difficult operation, complicated experiments, low coating rate of inorganic matter of composite microspheres, etc.

CN104448089AInactive Publication Date: 2015-03-25HUBEI UNIV
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  • Preparation method of strawberry-type polystyrene-silicon dioxide nanocomposite microspheres
  • Preparation method of strawberry-type polystyrene-silicon dioxide nanocomposite microspheres
  • Preparation method of strawberry-type polystyrene-silicon dioxide nanocomposite microspheres

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Such as figure 1 with figure 2 , the embodiment of the present invention provides a method for preparing strawberry-shaped polystyrene-silica nanocomposite microspheres, comprising the following steps:

[0026] Step 1: Mix methacryloyloxyethyltrimethylammonium chloride (abbreviated as MTC), octylphenol polyoxyethylene ether (abbreviated as CA-897) and deionized water under a nitrogen atmosphere, and Stir evenly for 0.25-1 h to obtain an aqueous phase...

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Abstract

The invention relates to a preparation method of strawberry-type polystyrene-silicon dioxide nanocomposite microspheres. The preparation method comprises the following steps: in a nitrogen atmosphere, mixing methacryloyloxyethyl trimethyl ammonium chloride, octaphenyl polyoxyethyiene and deionized water to obtain a water-phase mixture; dissolving azodiisobutyronitrile into styrene and n-hexadecane through ultrasonic wave to obtain an oil-phase mixture; dropping the oil-phase mixture into the water-phase mixture by using a constant-pressure dropping funnel to obtain mixed liquid; performing ultrasonic treatment on the mixed liquid under an ice-water mixed bath condition to obtain miniemulsion; dropwise adding silicon dioxide nanosol into the miniemulsion, and heating to obtain milky dispersion liquid; collecting and cooling the dispersion liquid, and centrifugating and dispersing until no free SiO2 particles exist under a transmission electron microscope, so as to obtain the strawberry-type polystyrene-silicon dioxide nanocomposite microspheres finally. The preparation method is simple and relatively low in cost and the SiO2 cladding rate is relatively high.

Description

technical field [0001] The invention relates to a preparation method of a nanocomposite material, in particular to a preparation method of a strawberry-type polystyrene-silicon dioxide nanocomposite microsphere. Background technique [0002] Organic-inorganic Nanocomposite Microsphere refers to the particles formed by two or more ultrafine particles after surface coating or composite treatment. It has the advantages of both organic materials and inorganic materials, and because of the special surface effect, volume effect, quantum size effect and composite synergistic effect of nano-scale ultrafine particles, it has more special functions. High-strength composite coatings, new composite magnetic materials, high wear-resistant, functional coatings, new luminescent materials, new conductive polymers and other functional materials have very broad application prospects. More and more countries and regions have begun to Study its preparation technology and application characteri...

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Application Information

Patent Timeline
25 Mar 2015
Publication
CN104448089A
IPC
C08F212/08; C08F220/34; C08F2/44; C08K3/36
Inventors
张玉红; 陈朝霞