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Industrial synthesis method of high-thermal-stability terminated polyaryletherketone resin

A technology with high thermal stability and polyaryletherketone, which is applied in the field of polymer materials, can solve the problems of depolymerization and high equipment costs, and achieve the effects of reducing production costs, weak toxic and side effects, and reducing investment

Inactive Publication Date: 2015-04-22
JIANGMEN YOUJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The end-capping agent usually used in polyaryletherketone production system is CH 3 Cl, 4,4'-difluorobenzophenone, 4-fluorobiphenyl, 4-fluorobenzophenone, etc., such as Chinese patents CN2013102763332, CN102250299B, CN 2008100505674, the capping agents used in these technologies are used in actual production There are following defects: (1) adopt CH 3 Cl acts as a capping agent, since CH 3 Cl is gaseous at room temperature, and the temperature at the end of the polymerization reaction is higher than 230°C. In order to ensure a better end-capping effect, it is necessary to continuously feed a large amount of CH into the system. 3 Cl, while excess unreacted CH 3 Cl needs to be separated and recovered, so special recovery equipment needs to be added, and the equipment cost is high, so CH is seldom used in actual production. 3 Cl is the capping agent
The existing end-capping agents have defects, which will cause depolymerization, and additional LiCl should be added

Method used

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  • Industrial synthesis method of high-thermal-stability terminated polyaryletherketone resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]In a 200-liter stainless steel reaction kettle equipped with a nitrogen pipe and a high-efficiency stirrer, first add 90.00KG diphenyl sulfone, 30.000KG 4,4'-difluorobenzophenone and 16.000KG sodium carbonate and start to heat up to 130-140 ℃, after the monomers are completely dissolved, add 14.000KG hydroquinone to the system, continue to stir evenly, then raise the temperature to 180℃~220℃, react for 1~2 hours, raise the temperature to 240℃~260℃, and react for 0.5~ After 2 hours, raise the temperature to 270°C-280°C, react for 0.5-2 hours, then raise the temperature to 310°C-320°C to polymerize for 1-4 hours, add 340.3g of 3,4'-difluorobenzophenone, and continue the reaction for 10- After 30 minutes, the polymerized mucus was obtained; the polymerized mucus was water-cooled and pulverized into powder or directly formed into a film on a stainless steel belt cooler and then pulverized, and then the filtered powder was added to ethanol and refluxed for 1 hour, so repeated ...

Embodiment 2

[0043] In a 200-liter stainless steel reaction kettle equipped with a nitrogen pipe and a high-efficiency stirrer, first add 90.00KG diphenyl sulfone, 30.000KG 4,4'-difluorobenzophenone, and 28.000KG 4,4'-dihydroxydiphenyl After ketone and 16.000KG sodium carbonate, the temperature starts to rise to 130-140°C, and after the monomers are completely dissolved, the temperature is raised to 180°C-220°C, and the reaction is 1-2 hours, and the temperature is raised to 240-260°C, and the reaction is 0.5-2 hours. Raise the temperature to 270°C-280°C, react for 0.5-2 hours, then raise the temperature to 310°C-320°C to polymerize for 1-4 hours, add 283.7g of 3,4'-difluorobenzophenone, and continue the reaction for 10-30 minutes. Polymerized mucus is obtained; the polymerized mucus is water-cooled and pulverized into powder or directly formed into a film on a stainless steel belt cooler and then pulverized, and then the filtered powder is added to ethanol and refluxed for 1 hour. Repeat t...

Embodiment 3

[0047] Same as Example 2, except increasing the amount of 3,4'-difluorobenzophenone to 340.3g, other conditions are the same.

[0048] The resulting PEK resin melt index MI = 25.4g / 10min (400.0 ° C, 5KG, 5 minutes);

[0049] MI=25.0g / 10min (400.0°C, 5KG, 30 minutes).

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Abstract

The invention discloses an industrial synthesis method of high-thermal-stability terminated polyaryletherketone resin. The industrial synthesis method of the high-thermal-stability terminated polyaryletherketone resin comprises the following steps: carrying out polymerization reaction by taking a 4,4'-difluorobenzophenone monomer, a 4,4'-dihydroxy benaophenonel monomer and a bisphenol monomer as reaction monomers, taking a high-boiling-point organic solvent as a solvent, taking alkali carbonate as a salt-forming agent and taking an asymmetric aromatic ketone derivative as a terminating agent to obtain a polymerized adhesive liquid; cooling the polymerized adhesive liquid, then crushing the polymerized adhesive liquid into powder, filtering the powder, subsequently boiling the liquid by using an organic solvent and deionized water, washing to remove the solvent and side product salt, drying the liquid to obtain polyaryletherketone resin. According to the industrial synthesis method, alkali metal sodium carbonate is independently taken as a catalyst; an excellent terminating effect is exerted after the terminating agent is added; the system is not depolymerized; the terminated polyaryletherketone resin synthesized by the method has high-temperature thermal stability.

Description

technical field [0001] The invention belongs to the technical field of macromolecular materials, and in particular relates to an industrial synthesis method of high thermal stability capped polyaryletherketone resin. Background technique [0002] Polyaryletherketone is a kind of high-performance engineering plastics. Now commercialized mainly include polyetherketone (PEK), polyetheretherketone (PEEK), polyetheretherketoneketone (PEEKK), because of their heat resistance, Excellent comprehensive properties such as hot water resistance, abrasion resistance, fatigue resistance, radiation resistance, peel resistance, creep resistance, dimensional stability, impact resistance, chemical resistance, non-toxic, flame retardant, etc. Therefore, 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] In the existing production process of ...

Claims

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Application Information

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IPC IPC(8): C08G65/40C08G8/02
Inventor 王贤文黎昱江友飞
Owner JIANGMEN YOUJU NEW MATERIALS
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