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A kind of polystyrene/aluminum tripolyphosphate composite microsphere and preparation method thereof

A technology of aluminum tripolyphosphate and polystyrene, which is applied in the field of polystyrene/aluminum tripolyphosphate composite microspheres and their preparation, can solve the problems that the aluminum tripolyphosphate composite microspheres are not reported in literature and the like, and achieves the particle size The effect of uniformity, simple technical scheme and narrow particle size distribution

Inactive Publication Date: 2019-12-06
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many literatures about composite microspheres with core-shell structure, but there is no literature report about aluminum tripolyphosphate composite microspheres.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Dissolve 2 g of sodium dodecylbenzenesulfonate in 73 g of deionized water, then add 23.75 g of styrene, 1.13 g of divinylbenzene, and 0.12 g of triallyl isocyanurate under rapid stirring to form monomer lotion.

[0014] Transfer the monomer emulsion to 60 Co irradiated in a gamma ray radiation field with a dose rate of 30Gy / min and an absorbed dose of 20kGy to obtain an O / W polystyrene emulsion.

[0015] Add 356g of n-octane, 35.6g of n-octanol, 35.6g of fatty alcohol polyoxyethylene ether AEO-9 and 15.68g of phosphoric acid into 1000g of deionized water under high-speed stirring, and mix well to form a transparent liquid; Octane, 35.6g n-octanol, 35.6g fatty alcohol polyoxyethylene ether AEO-9 and 13.12g sodium metaaluminate were added to 1000g deionized water and mixed evenly to form a transparent liquid. Add the phosphoric acid-containing transparent liquid into the O / W polystyrene emulsion under stirring; after 30 minutes, add the transparent liquid containing sod...

Embodiment 2

[0019] Dissolve 3 g of sodium lauryl sulfate into 90 g of deionized water, then add 31.5 g of styrene, 3.33 g of divinylbenzene and 0.17 g of triallyl isocyanurate under rapid stirring to form a monomer emulsion.

[0020] Transfer the monomer emulsion to 60 Co irradiated in a gamma ray radiation field with a dose rate of 20Gy / min and an absorbed dose of 15kGy to obtain an O / W polystyrene emulsion.

[0021] Add 380g of n-octane, 38g of n-octanol, 38g of fatty alcohol polyoxyethylene ether AEO-5 and 29.19g of phosphoric acid into 1000g of deionized water under high-speed stirring, and mix well to form a transparent liquid; under high-speed stirring, add 380g of n-butane , 38g of n-butanol, 38g of fatty alcohol polyoxyethylene ether AEO-5 and 24.43g of sodium metaaluminate were added to 1000g of deionized water and mixed evenly to form a transparent liquid. Add the phosphoric acid-containing transparent liquid into the O / W polystyrene emulsion under stirring; after 30 minutes, a...

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Abstract

The invention provides a polystyrene / aluminum triphosphate composite microsphere and a preparation method thereof. The method comprises the following preparation steps: (1) preparing a monomer emulsion; (2) performing gamma ray radiation emulsion polymerization, wherein the absorbent dose is within 12kGy-24kGy; (3) enabling phosphoric acid to react with sodium metaaluminate and coating aluminum hydroxide on the emulsion particle surface; (4) reacting with phosphoric acid and converting the aluminum hydroxide on the emulsion particle surface into aluminum dihydrogen phosphate; (5) calcining instages and condensing the aluminum dihydrogen phosphate into aluminum triphosphate, thereby acquiring the polystyrene / aluminum triphosphate composite microsphere. The diameter of the microsphere is within 0.25mum-2mum and the diameter of the core is within 0.2mum-1mum.

Description

technical field [0001] The invention relates to an organic-inorganic composite microsphere and a preparation method thereof, in particular to a polystyrene / aluminum tripolyphosphate composite microsphere and a preparation method thereof. The composite microspheres can be used to prepare non-toxic anti-corrosion white pigments, hardeners for alkali metal silicates, alkaline gas adsorbents and catalysts for some important chemical reactions. Background technique [0002] The organic / inorganic composite microspheres with core-shell structure can be divided into two categories, one with inorganic materials as the core and polymer materials as the shell, and the other with polymer materials as the core and inorganic materials as the shell. The core-shell structure has attracted much attention because of its unique optical, electrical and chemical properties due to its different composition, size and structural arrangement. Aluminum tripolyphosphate (AlH 2 P 3 o 10 ) is a cond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08K3/32C08F212/08C08F212/36C08F226/06C08F2/46C08J3/12
Inventor 宋伟强郑红娟赵志伟
Owner HENAN UNIVERSITY OF TECHNOLOGY