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Preparation method and application of polystyrene hollow microspheres

A technology of polystyrene and hollow microspheres, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of low degree of industrialization, cumbersome preparation process, low output of single kettle, etc., and achieve good circularity of products , uniform particle size, and easy industrialization

Active Publication Date: 2016-07-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 21st century, researchers at home and abroad have conducted a lot of research and reports on polymer hollow microsphere materials, but overall, the preparation process of polymer hollow microspheres still has cumbersome preparation process, difficulty in controlling the particle size of the spheres, and hollow spheres. Shell thickness and phase composition are difficult to effectively and accurately control, and most of them are currently limited to the laboratory research stage, and the degree of industrialization is low
This method technique is relatively simple, and reaction time is short, but needs organic solvent in the preparation process, and the single-pot output of this method preparation product is low in addition

Method used

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  • Preparation method and application of polystyrene hollow microspheres
  • Preparation method and application of polystyrene hollow microspheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0037] 1) Prepare the oil phase: weigh 0.63g of the above-mentioned clean polystyrene foam, add 31.5g of styrene monomer, 0.0063g of benzoyl peroxide, 800.65g of span, and 4.8g of n-hexane, and mix well to obtain oil phase; polystyrene is 2% by weight of styrene; initiator is 0.02% by weight of styrene monomer; weight of crosslinking agent is 0% by weight of styrene monomer; weight of emulsifier is polystyrene and styrene monomer 2% of the sum of the weight of the body; the weight of the blowing agent is 15% of the sum of the weight of polystyrene and styrene monomer, and the total mass of the oil phase is 37.5863g.

[0038] 2) Configure the dispersed water phase: add 0.23g of gelatin, 0.14g of sodium dodecylbenzene sulfonate and 0.05g of sorbitan oleate into 187ml of distilled water, stir well to obtain the water phase; the weight of the dispersant is water 0.12% by weight; the weight of th...

Embodiment 2

[0042] Wash the computer packaging with polystyrene foam and dry it for later use;

[0043] 1) Prepare the oil phase: weigh 7.38g of the above-mentioned clean polystyrene foam, add 24.6g of styrene monomer and 0.738g of benzoyl peroxide, add 0.615g of ethylene glycol dimethacrylate, and 603.198g of Span , after mixing evenly, the oil phase is obtained; wherein the weight of polystyrene is 30% of the weight of styrene monomer; the initiator is 3.0% of the weight of styrene monomer; the weight of cross-linking agent is 2.5% of the weight of styrene monomer; emulsification The weight of the agent is 10% of the sum of the weight of polystyrene and the weight of styrene monomer; the weight of the foaming agent is 1% of the sum of the weight of polystyrene and the weight of styrene monomer, and the total mass of the oil phase is 36.531g.

[0044] 2) Prepare the dispersed water phase: add 8g of polyvinyl alcohol to 100ml of distilled water and stir evenly; the weight of the dispersan...

Embodiment 3

[0048] Wash the computer packaging with polystyrene foam and dry it for later use;

[0049] 1) Prepare the oil phase: weigh 4g of the above-mentioned clean polystyrene foam, add 100g of styrene monomer and 0.5g of benzoyl peroxide, add 3g of ethylene glycol dimethacrylate, 605.2g of Span, n-hexane 5.2g of alkane, mixed uniformly to obtain an oil phase; wherein the polystyrene weight is 4% of the styrene monomer weight, and the initiator is 0.5% of the styrene monomer weight; the cross-linking agent weight is 4% of the styrene monomer weight 3%, the weight of emulsifier is 5% of the sum of polystyrene weight and styrene monomer weight; the weight of blowing agent is 5% of the sum of polystyrene weight and styrene monomer weight, and the total mass of oil phase is 117.9 g;

[0050] 2) Configure the dispersed water phase: add 6.6g of polyvinyl alcohol to 220ml of distilled water, then add 2.2g of sodium lauryl sulfate, stir well as the water phase; the weight of the dispersant i...

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Abstract

The invention provides a preparation method of polystyrene hollow microballs, microballs prepared by the method, and applications thereof. The preparation method comprises following steps: dissolving polystyrene into poly monomer styrene, adding an initiator, a cross-linking agent, and a foaming agent, evenly mixing so as to obtain an oil phase; dissolving a dispersant or a dispersant and an emulsifier into water so as to obtain a water phase; fully mixing the oil phase and the water phase, homogenously dispersing the oil phase in the water phase so as to obtain an emulsion; heating to make the foaming agent to foam and the monomer to polymerize, subjecting the obtained solid phase to a suction filtration treatment, and drying so as to obtain the polystyrene hollow microballs. The polystyrene hollow microballs have the characteristics of inner hollow structure, small particles, and controllable particle size distribution, and can be well applied to the fields of oil drilling liquid, cosmetic, and paint. The preparation method has the advantages of simple preparation process, easy control of technology, and easy industrialization.

Description

technical field [0001] The invention relates to a preparation method and application of polystyrene hollow microspheres. More specifically, the present invention relates to a method and application of preparing polystyrene hollow microspheres by self-dissolving method. 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) have all been tried to be prepared into hollow microsphere materials by domestic and foreign researchers. Different special features for solid materials. These hollow microsphere materials with special characteristics are expected to be used in microreactors, drug delivery, controlled release, photocatalysis, enzyme coating...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08F112/08C08J9/14C09K8/035
Inventor 赵素丽石秉忠陈铖李涛常连玉李胜
Owner CHINA PETROLEUM & CHEM CORP