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A kind of polyether ether ketone and preparation method thereof

The technology of polyetheretherketone and difluorobenzophenone is applied in the field of polyetheretherketone and its preparation, which can solve the problems of increasing the amount of polyetheretherketone, and achieve outstanding heat resistance, simple preparation method and wide applicability. Effect

Active Publication Date: 2019-02-26
佛山矽氟材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the TLCP content is high, the modulus of the composite is high, but there is no physical or chemical force between the two phases. To really obtain a composite material with high tensile strength, the amount of polyether ether ketone must be increased, which in turn has nothing to do with increasing its There is a contradiction in heat resistance

Method used

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  • A kind of polyether ether ketone and preparation method thereof
  • A kind of polyether ether ketone and preparation method thereof
  • A kind of polyether ether ketone and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of semi-aromatic polyetheretherketone: Add 109.10g 4,4'-difluorobenzophenone, 27.53g hydroquinone, 53.56g 4,4'-(1,2 -ethylenediyl)bisphenol, 26.50mg sodium carbonate, 500mL diphenylsulfone and 250mL toluene. The flask was fitted with a sealed glass paddle stirrer, a nitrogen inlet tube and a water trap. Introduce a moderate nitrogen flow, heat to 140°C for 2 hours, release toluene and generated water in the water separator, slowly raise the temperature to 240°C to continue the polymerization reaction for 1.5 hours, pour the product into water, smash it, and wash it with deionized water Remove inorganic salts and organic solvents, dry in a vacuum oven at a temperature of 250°C and a vacuum of 15mbar for 24 hours to obtain a polyether ether ketone, its FTIR spectrum, differential scanning calorimetry (DSC) curve, elemental analysis and intrinsic viscosity See attached figure 1 , 2 And Table 1, Table 2.

[0026] Spread the obtained polyether ether ketone po...

Embodiment 2

[0035] Preparation of semi-aromatic polyetheretherketone: Add 21.82g 4,4'-difluorobenzophenone and 10.71g 4,4'-(1,2-ethylenediyl)bisphenol into a 500mL three-neck round bottom flask , 9.31g biphenol, 13.82mg potassium carbonate, 150mL sulfolane and 100mL toluene. The flask was fitted with a sealed glass paddle stirrer, a nitrogen inlet tube and a water trap. Introduce a moderate nitrogen flow, heat to 100°C for 4 hours, release toluene and generated water in the water separator, slowly raise the temperature to 180°C to continue the polymerization reaction for 4 hours, pour the product into water, smash it, and wash it with deionized water Inorganic salts and organic solvents were dried in a vacuum oven at a temperature of 200° C. and a vacuum of 1 mbar for 48 hours to obtain a polyether ether ketone, whose intrinsic viscosity is shown in Table 2.

[0036] Spread the obtained polyether ether ketone powder in a mold, place it in a 300°C flat vulcanizer for 30 minutes under pres...

Embodiment 3

[0042] Preparation of semi-aromatic polyetheretherketone: Add 21.82g 4,4'-difluorobenzophenone and 12.12g 4,4'-(1,4-butanediyl)bisphenol into a 500mL three-neck round bottom flask , 13.02 g 4,4'-(1,9-nonanediyl)bisphenol, 18.81 mg zinc carbonate, 200 mL N-methylpyrrolidone, and 100 mL toluene. The flask was fitted with a sealed glass paddle stirrer, a nitrogen inlet tube and a water trap. Introduce a moderate nitrogen flow, heat to 120°C for 4 hours, release toluene and generated water in the water separator, slowly raise the temperature to 200°C to continue the polymerization reaction for 3 hours, pour the product into water, smash it, and wash it with deionized water Inorganic salts and organic solvents were dried in a vacuum oven at a temperature of 260° C. and a vacuum degree of 15 mbar for 36 hours to obtain a polyether ether ketone.

[0043] Spread the obtained polyether ether ketone powder in a mold, place it in a 300°C flat vulcanizer for 30 minutes, and then cool it ...

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Abstract

The invention discloses polyetheretherketone and a preparation method thereof; the preparation method comprises: adding 4,4'-difluorobenzophenone, a bisphenol monomer with fatty chains, an aromatic bisphenol monomer, and a catalyst into a reactor, injecting a solvent and a water carrying agent at the same time, heating to 100-140 DEG C under nitrogen protection and stirring, reacting for 2-4 h, removing the water carrying agent and generated water, heating to 180-240 DEG C, polymerizing for 1.5-4 h, pouring the product into water, mashing, washing with deionized water to remove inorganic salts and the solvent, and drying under the temperature of 200-260 DEG C and the vacuum degree of 1-20 mbar for 24-28 h to obtain the polyetheretherketone. The polyetheretherketone provided herein can be enhanced with no need for external force, the tensile strength of the polyetheretherketone can be self-enhanced in situ during polymerization, and the polyetheretherketone has high glass transition temperature. The preparation method is a one-pot method, having the advantages of simplicity, controllability, and high applicability.

Description

technical field [0001] The invention relates to a polyether ether ketone and a preparation method thereof, belonging to the technical field of high-performance polymers. Background technique [0002] Polyetheretherketone is a high-performance special engineering plastic with excellent mechanical properties, heat resistance, chemical corrosion resistance and easy processing. It is widely used in many high-tech fields such as aviation, aerospace, electronics and nuclear energy. With the advancement of science and technology, the requirements for materials are getting higher and higher. The research on improving the heat resistance and mechanical properties of polyether ether ketone through chemical and physical modification has attracted people's attention. At present, three modification methods are commonly used: (1) change the proportion of groups on the main chain of the molecule, such as changing the proportion of ether and ketone groups on the main chain of the molecule, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/02
CPCC08G8/02
Inventor 顾嫒娟管清宝梁国正袁莉
Owner 佛山矽氟材料科技有限公司