Organic/inorganic composite hollow microspheres, and preparation method and application thereof

An inorganic composite, hollow technology, applied in the preparation of microspheres, microcapsule preparations, chemical instruments and methods, etc., can solve the problems of poor temperature resistance and pressure resistance, and achieve improved temperature and pressure resistance, uniform particle size, cost reduction effect

Active Publication Date: 2013-11-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with inorganic hollow microspheres, organic shell hollow microspheres are less resistant to temperature and pressure.

Method used

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  • Organic/inorganic composite hollow microspheres, and preparation method and application thereof
  • Organic/inorganic composite hollow microspheres, and preparation method and application thereof
  • Organic/inorganic composite hollow microspheres, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Wash the computer packaging with polystyrene foam and dry it for later use;

[0037] 1) Preparation of oil phase O: Weigh 7.38g of the above-mentioned clean polystyrene foam, add 24.6g of styrene monomer and 0.738g of benzoyl peroxide, add 0.615 of ethylene glycol dimethacrylate, and 603.198 of Span g, hydrophobic nano-silica 0.0032g, mixed uniformly to obtain an oil phase; wherein polystyrene weight is 30% of styrene monomer weight, initiator is 3.0% of styrene monomer weight; crosslinking agent weight is benzene 2.5% of the weight of ethylene monomer, the weight of emulsifier is 10% of the sum of polystyrene weight and styrene monomer weight, hydrophobic nano-silica is 0.01% of the sum of polystyrene and styrene mass, the total O phase The mass is 36.534g;

[0038] 2) Preparation of phase W1: take 7.0 g of distilled water, add 0.035 g of sodium dodecylbenzenesulfonate, dissolve evenly and use it as phase W1, the weight of emulsifier is 0.5% of the weight of distilled...

Embodiment 2

[0044] Wash the computer packaging with polystyrene foam and dry it for later use;

[0045] 1) Preparation of oil phase (O phase): Weigh 31.5g of styrene monomer, 0.0063g of benzoyl peroxide, 800.65g of Span, and 3.15g of hydrophobic nano-titanium dioxide, and mix them evenly to obtain an oil phase; polystyrene is 0% of the weight of styrene, the initiator is 0.02% of the weight of styrene monomer, the weight of crosslinking agent is 0% of the weight of styrene monomer, the weight of Span 80 is 2% of the weight of styrene monomer, inorganic nanomaterials It is 10% of the weight of styrene monomer, and the total mass of the oil phase is 35.31g;

[0046] 3) Preparation of W1 phase: Take 19.0 g of distilled water, add 1.52 g of sodium dodecyl sulfonate, dissolve evenly and use it as W1 phase, the weight of emulsifier is 8% of the weight of distilled water, and the total mass of W1 phase is 20.52 g;

[0047] 4) Prepare W2 phase: add 0.168g gelatin, 0.11g sodium dodecylbenzenesulf...

Embodiment 3

[0052] Wash the computer packaging with polystyrene foam and dry it for later use;

[0053] 1) Prepare the oil phase (O phase): weigh 4g of the above-mentioned clean polystyrene foam, add styrene monomer 100 and benzoyl peroxide 0.5g, add ethylene glycol dimethacrylate 3g, Span 605.2g, hydrophobic nano-calcium carbonate 0.104g, make oil phase after mixing; Wherein polystyrene weight 4% of styrene monomer weight, initiator is 0.5% of styrene monomer weight; Cross-linking agent weight is benzene 3% of the weight of ethylene monomer, emulsifier weight is 5% of the sum of polystyrene weight and styrene monomer weight, hydrophobic inorganic nanomaterial weight is 0.1% of the sum of polystyrene weight and styrene monomer weight , the sum of the mass of O phase is 112.804g;

[0054] 2) Preparation of W1 phase: Take 43g of distilled water, add 1.15g of sodium lauryl sulfate, 1.0g of OP-10, dissolve evenly and use it as W1 phase, the weight of emulsifier is 5% of the weight of distill...

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Abstract

The invention relates to organic / inorganic composite hollow microspheres, and a preparation method and an application thereof. According to the invention, a part of hydrophobically modified inorganic nano-grade material is added into styrene monomer or styrene monomer dissolved with polystyrene; the mixture is uniform, and is adopted as an oil phase; the viscosity of the oil phase is controlled through controlling the concentration of polystyrene and the addition amount of the nano-grade material; and temperature resistance and pressure resistance of the hollow microspheres are improved through adding an inorganic nano-grade material. In a W1 / O / W2 triple emulsion, initiation and polymerization of the styrene monomer, precipitation hardening of polystyrene and the inorganic nano-grade material, and the like are realized, such that the organic / inorganic composite hollow microspheres with the hollow structure are formed.

Description

technical field [0001] The invention relates to an organic / inorganic composite hollow microsphere and its preparation method and application. More specifically, the present invention relates to an organic / inorganic composite hollow microsphere prepared by a three-phase emulsion, its preparation method and application. Background technique [0002] Hollow microsphere materials have unique chemical and physical properties due to their special hollow structure. In recent years, they have attracted more and more attention and become a research hotspot in the field of materials. So far, inorganic materials, polymer materials, metal oxide materials and semiconductor materials (gallium oxide, gallium nitride), etc. have been tried to be prepared into hollow microsphere materials by domestic and foreign researchers, and these materials show the same appearance as the corresponding solid Special features of different materials. These hollow microsphere materials with special charac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/14C08L25/06C08K3/36C08K3/22C08K3/26C08F212/08C08F112/08C08F2/24B01J13/18C09K8/03C09K8/42
Inventor 赵素丽陈铖刘四海石秉忠徐江张凤英
Owner CHINA PETROLEUM & CHEM CORP
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