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A method for regulating the monodispersity of polystyrene microspheres based on hydrothermal treatment

A technology of polystyrene and hydrothermal treatment, which is applied in the field of regulating the monodispersity of polystyrene microspheres and polystyrene nano-microspheres, to achieve the effects of recycling and reducing production costs

Active Publication Date: 2015-09-09
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention innovatively hydrothermally treats polystyrene microspheres with poor monodispersity to obtain polystyrene nanospheres with good monodispersity. However, the method of regulating the monodispersity of polystyrene microspheres based on hydrothermal treatment has not been reported yet.

Method used

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  • A method for regulating the monodispersity of polystyrene microspheres based on hydrothermal treatment
  • A method for regulating the monodispersity of polystyrene microspheres based on hydrothermal treatment
  • A method for regulating the monodispersity of polystyrene microspheres based on hydrothermal treatment

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Experimental program
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Embodiment Construction

[0027] The present invention will be further described below by means of specific embodiments:

[0028] 1. Preparation of Polystyrene Microspheres

[0029] A certain amount of stabilizer and 39 mL of absolute ethanol were added to a three-necked flask equipped with a reflux condenser and a magnetic stirrer, and N 2 , heated up to 81°C under stirring to dissolve the stabilizer, and added 8.8mL of styrene dissolved in 0.08g of BPO at one time, N 2 Stirring and constant temperature reaction under the atmosphere for 9h to obtain a white emulsion.

[0030] The polystyrene microspheres with different sizes and poor monodispersity can be prepared by adjusting the type and amount of the stabilizer in step (1).

[0031]

[0032] *The amount of stabilizer is the mass percentage of monomer

[0033] 2. Hydrothermal Treatment of Polystyrene Microspheres

[0034] Mix 2mL polystyrene microsphere emulsion prepared in step (1) with 10mL aqueous solution dissolved with a certain amount o...

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Abstract

The invention relates to a method for regulating the monodispersity of polystyrene microsphere, and particularly relates to a method for converting polystyrene microsphere poor in monodispersity into polystyrene microsphere with favorable monodispersity based on hydrothermal treatment. The monodisperse polystyrene microsphere is wide in the application field but high in cost. The method is simple and feasible to operate, the polystyrene microsphere poor in monodispersity is turned from waste into wealth, different-sized polystyrene microspheres with favorable monodispersity can be prepared by regulating the use amount of stabilizers, the preparation cost of the monodisperse polystyrene microsphere is remarkably reduced, energy conservation and environmental protection are realized, and resources can be recycled.

Description

technical field [0001] The invention relates to a method for regulating the monodispersity of polystyrene microspheres, in particular to a method for converting polystyrene microspheres with poor monodispersity into polystyrene nanospheres with good monodispersity based on hydrothermal treatment, belonging to The field of polymer microsphere materials. Background technique [0002] Polymer microspheres refer to polymer materials or polymer composite materials whose size is between nanometers and micrometers, spherical or other geometric shapes, and their shapes can be varied, including solid, hollow, porous, dumbbell type, onion type, etc. According to the particle size distribution of polymer microspheres, polymer microspheres can be divided into monodisperse, narrowly dispersed and polydisperse microspheres. Monodisperse polymer microspheres are a new class of polymer materials. Because of their highly consistent size and special physical and chemical properties, they ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F112/08C08F2/12C08F6/14
Inventor 戴李宗张龙袁丛辉余世荣高辉许一婷曾碧榕罗伟昂
Owner XIAMEN UNIV