Redispersible polyarylethersulphones micropowder and method for preparing same

A polyarylene ether sulfone and redispersibility technology is applied in the field of preparation of redispersible polyarylene ether sulfone micropowders, and can solve the problems of low content of polyarylene ether sulfone, not completely water-based, and unfavorable environmental protection. , to achieve the effect of expanding the scope of application, avoiding pollution, and being conducive to preservation and use

Active Publication Date: 2005-09-07
吉林省奕彤新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the background technology is that because it is dissolved in an organic solvent, and the content of polyarylene ether sulfone is very low, it is not completely water-based, which is not conducive to redispersion and environmental protection

Method used

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  • Redispersible polyarylethersulphones micropowder and method for preparing same
  • Redispersible polyarylethersulphones micropowder and method for preparing same
  • Redispersible polyarylethersulphones micropowder and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Preparation of redispersible polyethersulfone micropowder

[0035] Thoroughly mix 240ml of chloroform with 30ml of methanol, dissolve 4g of polyvinylpyrrolidone (PVP) in the above solution, and dissolve 140g of polyethersulfone in the above mixed solution to prepare a polyethersulfone solution.

[0036] Dissolve 8g of sodium dodecylbenzenesulfonate in 280ml of deionized water; pour the aqueous solution of sodium dodecylbenzenesulfonate into the colloid mill, then slowly add the polyethersulfone solution into the colloid mill to disperse.

[0037] Pour the prepared polyethersulfone emulsion containing organic solvent into a 1000 ml three-necked flask equipped with a stirring device and a condensing device, and heat it in a water bath. The temperature control range is 55°C for 3 hours, and 65°C for 3 hours until no solvent evaporates. Until then, heat up to 85°C for 30 minutes. Stop stirring and stop heating to obtain a water-based water-based polyarylethersulf...

Embodiment 2

[0039] Example 2 Preparation of redispersible polyethersulfone micropowder

[0040] Thoroughly mix 240ml of chloroform and 20ml of methanol, and dissolve 90g of polyethersulfone in the above mixed solution.

[0041] Dissolve 8 g of sodium dodecylbenzenesulfonate in 280 ml of deionized water. Pour the sodium dodecylbenzenesulfonate aqueous solution into the colloid mill, then slowly add the polyethersulfone solution into the colloid mill for dispersion.

[0042] Pour the prepared polyethersulfone emulsion containing organic solvent into a 1000 ml three-necked flask equipped with a stirring device and a condensing device, heat it in a water bath, and control the temperature at 55°C for 3 hours and 65°C for 3 hours until no solvent evaporates , and then heated to 85 ° C for 30 minutes. Stop stirring and stop heating to obtain a water-based water-based polyarylethersulfone dispersion.

[0043] The spray drying process parameters are: inlet temperature 112°C, outlet temperature ...

Embodiment 3

[0044] Example 3 Preparation of redispersible polyethersulfone micropowder

[0045] Thoroughly mix 240ml of chloroform and 10ml of methanol, and dissolve 90g of polyethersulfone in the above mixed solution.

[0046] Dissolve 6 g of sodium dodecylbenzenesulfonate in 280 ml of deionized water. Pour the sodium dodecylbenzenesulfonate aqueous solution into the colloid mill, then slowly add the polyethersulfone solution into the colloid mill for dispersion.

[0047] Pour the prepared polyethersulfone emulsion containing an organic solvent into a 1000 ml three-neck flask equipped with a stirring device and a condensing device, and heat it in a water bath. The temperature control range is 55°C for 2 hours, and 65°C for 3 hours until no solvent evaporates. Then, the temperature was raised to 80°C for 30 minutes. Stop stirring and stop heating to obtain a water-based water-based polyarylethersulfone dispersion.

[0048] The spray drying process parameters are: inlet temperature 112°C,...

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Abstract

The invention relates to redispersable polyarylether sulfone micro-powder and the preparing method, belonging to the high molecular polymer field.The elementary composition is polyarylideneethersulfone with repetitive units or polyarylideneethersulfone with repetitive units and with side group, containing surface active agent, the average granule diameter is 0.01~10mum.The preparing process comprising putting the polyarylether sulfone into the mixed solution of organic solvent and assisting solvent; putting the ionic surface active agent into water for rapid dispersion, dispersing the solution of polyarylethersulfone, and getting the emulsion of polyarylethersulfone; evaporating the organic solvent, and then spraying for drying. Prepared product can be used as heat resisting paint or coating polymer. The invention enlarges the application area of the polyarylethersulfone, which is a kind of engineering material, and adapted for environmental protection; and benefits the maintain and application because of its redispersable.

Description

technical field [0001] The invention belongs to the field of macromolecular polymers, in particular to a preparation method for redispersible polyarylethersulfone micropowder used in heat-resistant coatings or coating polymers. Background technique [0002] The prior art close to the present invention is CN1116428, which discloses an organic solution of polyethersulfone or molten polyethersulfone. The polyethersulfone micropowder is smooth and spherical, and is sprayed by polyethersulfone organic solution or molten state. Prepared dry. [0003] Micropowders of polyarylene ether sulfone are known per se (published in WO 91 / 00876), and micropowders of polyarylene ether sulfone can also be given a paste by processing polyarylene ether sulfone with a liquid The latter is emulsified in water with vigorous stirring, and then the emulsion is dried to obtain a fine powder. The patent mentions the preparation of polyarylene ether sulfone emulsion (containing organic solvent N, N-di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/23C08J3/12
Inventor 关绍巍张守国姜振华朱强
Owner 吉林省奕彤新材料有限公司
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