Industrial synthesis method and application of high-fluidity polyether ether ketone resin

A polyetheretherketone resin, high fluidity technology, used in coatings, anti-corrosion coatings, etc., can solve the problems of restricting the use and processing of polyetheretherketone coatings, increasing product raw materials, and uncontrollable processes, and achieving molecular weight distribution. Narrow range, good capping effect, and weak side effects

Inactive Publication Date: 2015-04-08
JIANGMEN YOUJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to obtain polyether ether ketone with low melt viscosity, Chinese patent CN 2014102190250 obtains polyether ether ketone with low melt viscosity by changing the sequence of molecular chains without changing the ratio of phenyl, ether bond and ketone group, but this This method increases the raw materials of the product, increases the cost, and the process is uncontrollable; there is also US Patent US 4920200, which utilizes ring-opening polymerization of aromatic r

Method used

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  • Industrial synthesis method and application of high-fluidity polyether ether ketone resin

Examples

Experimental program
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Effect test

Embodiment 1

[0028] In a nitrogen-protected 200-liter stainless steel reaction kettle equipped with a high-efficiency stirrer, first add 90.00Kg of diphenyl sulfone, 30.00Kg of 4,4'-difluorobenzophenone and 16.00Kg of sodium carbonate, then start stirring, and heat up to 135°C After the monomers are completely dissolved, add 14.00Kg of hydroquinone to the system, continue stirring evenly, then raise the temperature to 200°C, react for 1.5 hours, then raise the temperature to 250°C, react for 1 hour, then raise the temperature to 275°C, react After 1 hour, heat up to 315°C, polymerize for 2 hours, add 1.10Kg of 3,4'-difluorobenzophenone, and continue the reaction for 20 minutes to obtain polymerized slime; cool the polymerized slime with water and pulverize it into powder, and filter Add ethanol to the powder and boil it under reflux for 1 hour, repeat this 10 times, then boil it with deionized water for 1 hour, repeat this 10 times until the chloride ion content in the water is below 5ppm, ...

Embodiment 2

[0033] In a nitrogen-protected 200-liter stainless steel reaction kettle equipped with a high-efficiency stirrer, first add 90.00Kg of diphenyl sulfone, 30.00Kg of 4,4'-difluorobenzophenone and 16.00Kg of sodium carbonate, then start stirring, and heat up to 135°C After the monomers are completely dissolved, add 14.00Kg of hydroquinone to the system, continue stirring evenly, then raise the temperature to 200°C, react for 1.5 hours, then raise the temperature to 250°C, react for 1 hour, then raise the temperature to 275°C, react After 1 hour, raise the temperature to 315°C, polymerize for 2 hours, add 832g of 3,4'-difluorobenzophenone, and continue the reaction for 20 minutes to obtain a polymerized slime; cool the polymerized slime with water and pulverize it into powder, and filter the Add ethanol to the powder and boil under reflux for 1 hour, repeat this 10 times, then boil with deionized water for 1 hour, repeat this 10 times until the chloride ion content in the water is ...

Embodiment 3

[0038]In a nitrogen-protected 200-liter stainless steel reaction kettle equipped with a high-efficiency stirrer, first add 90.00Kg of diphenyl sulfone, 30.00Kg of 4,4'-difluorobenzophenone and 16.00Kg of sodium carbonate, then start stirring, and heat up to 135°C After the monomers are completely dissolved, add 14.00Kg of hydroquinone to the system, continue stirring evenly, then raise the temperature to 200°C, react for 1.5 hours, then raise the temperature to 250°C, react for 1 hour, then raise the temperature to 275°C, react After 1 hour, raise the temperature to 315°C, polymerize for 2 hours, add 1.387Kg of 3,4'-difluorobenzophenone, and continue the reaction for 20 minutes to obtain a polymerized slime; cool the polymerized slime with water and pulverize it into powder, and filter the Add ethanol to the powder and boil it under reflux for 1 hour, repeat this 10 times, then boil it with deionized water for 1 hour, repeat this 10 times until the chloride ion content in the w...

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Abstract

The invention discloses an industrial synthesis method of high-fluidity polyether ether ketone resin. The industrial synthesis method comprises the following steps: in a reaction vessel, adding diphenyl sulfone, 4,4'-difluorobenzophenone and an alkali metal salt forming agent, starting stirring, heating until the monomer is completely dissolved, adding hydroquinone into the system, further uniformly stirring, heating, carrying out polymerization reaction, finally adding an end-capping reagent and further reacting to obtain a polymeric viscous liquid; cooling the polymeric viscous liquid with water, pulverizing into powder and filtering the powder, boiling the filtered powder with an organic solvent and deionized water, repeatedly washing and filtering to remove the solvent and by-product salt and drying to obtain polyether ether ketone resin, wherein the end-capping reagent is selected from one or more of 3,4'-difluorobenzophenone, 3-chloro-4-fluorobenzophenone, 3-fluoro-4-chlorobenzophenone and 3,4'-dichlorobenzophenone. The polyether ether ketone resin prepared by the industrial synthesis method has the advantages of low chroma, low melt viscosity, high fluidity and easiness in mold processing and can be used for preparation of heat-resistant and anti-corrosion coating and injection molded parts.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an industrial synthesis method and application of high fluidity polyetheretherketone resin. Background technique [0002] Polyether ether ketone is a high-performance engineering plastics, due to its heat resistance, hot water resistance, abrasion resistance, fatigue resistance, radiation resistance, peel resistance, creep resistance, dimensional stability, Impact, chemical resistance, non-toxic, flame retardant and other excellent comprehensive properties, so it has been widely used in the fields of electronics, electrical appliances, machinery, automobiles, medical appliances, aviation industry, food processing and non-stick coatings for a long time. [0003] Since the advent of water-based coatings in the early 1960s, a variety of new varieties of non-pollution, resource-saving, and energy-saving coatings have been developed successively. Among them, the ...

Claims

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Application Information

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IPC IPC(8): C08G8/02C09D161/16C09D5/08C08L61/16
Inventor 王贤文江友飞黎昱
Owner JIANGMEN YOUJU NEW MATERIALS
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