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Preparation method of modified inorganic micro-nanoparticle reinforced polyether ketone ketone (PEKK) composite material

A technology of micro-nano particles and polyether ketone ketone, which is applied in the field of nanocomposite materials and engineering plastics, can solve the problems of phase separation, difficulty in uniform dispersion of organic and inorganic materials, and high melting point

Pending Publication Date: 2017-09-22
ZHANGJIAGANG XIANGCHENG MEDICAL MATERIAL SSCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Adding inorganic micro-nano particles in the polyether ketone ketone matrix can improve the modulus and hardness of the composite material, but because the melting point of the inorganic particles is generally relatively high, it will cause thermal degradation of the organic material during the melt blending process; and through physical It is difficult to achieve uniform dispersion of organic and inorganic materials in the way of blending, and the phenomenon of "phase separation" is prone to occur in the thermoforming process

Method used

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  • Preparation method of modified inorganic micro-nanoparticle reinforced polyether ketone ketone (PEKK) composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] al 2 o 3 Modification: add 5ml KH570 to 100ml ethanol aqueous solution, add dropwise glacial acetic acid to make pH 4, add 4 g nanometer Al after hydrolysis at room temperature for 1 hour 2 o 3 , heated in a water bath to 50°C and stirred for 6 hours, filtered and washed with water several times, and dried at 80°C for 4 hours.

Embodiment 2

[0020] Add 5g AlCl in a 500ml three-necked flask equipped with mechanical stirring 3 , 40ml of dichloroethane, 1.25ml of N-methylpyrrolidone, and stirred at -5 to -15°C for 1-2 hours. Add 2.03g of terephthaloyl chloride and 1.7ml of diphenyl ether into the three-necked flask in sequence, react at this temperature (-5 to -15°C) for 1-3 hours, then raise the temperature to room temperature and continue the reaction for 10-20 hours. The precipitated colloid is crushed in methanol, washed with water, and dried at 80-150° C. for 4-8 hours to obtain polyether ketone ketone.

Embodiment 3

[0022] In a 500ml three-necked flask equipped with mechanical stirring, add 1.2g of Al with a particle size of 30nm 2 o 3 , 5g AlCl 3 , 40ml of dichloroethane, 1.25ml of N-methylpyrrolidone, and stirred at -5 to -15°C for 1-2 hours. Add 2.03g of terephthaloyl chloride and 1.7ml of diphenyl ether into the three-necked flask in sequence, react at this temperature (-5 to -15°C) for 1-3 hours, then raise the temperature to room temperature and continue the reaction for 10-20 hours. Break the precipitated colloid in methanol, wash with water and dry at 80-150°C for 4-8 hours to obtain Al 2 o 3 Reinforced polyetherketoneketone composites.

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Abstract

The present invention relates to a preparation method of a modified inorganic micro-nanoparticle reinforced polyether ketone ketone (PEKK) composite material. The preparation method comprises: (1) carrying out surface modification on inorganic micro-nanoparticles by using a coupling agent; and (2) directly adding the modified inorganic micro-nanoparticles at a polyether ketone ketone synthesis reaction stage. According to the present invention, the interfacial adhesion between the inorganic particles and the polyether ketone ketone polymer is improved through the coupling agent modification, and the polyether ketone ketone wraps the inorganic particles through the molecular bridge action during the molecular chain growth process, does not perform the physical blending or melt blending on the inorganic micro-nanoparticles and the polyether ketone ketone matrix, such that the inorganic particles can be well dispersed in the polyether ketone ketone matrix, the processing molding is easily achieved, and the modulus and the hardness of the polyether ketone ketone composite material are improved; and the obtained modified inorganic micro-nanoparticle reinforced polyether ketone ketone (PEKK) composite material is suitable for the fields of aerospace, industry, and medical materials.

Description

technical field [0001] The invention relates to a modified inorganic micronano particle / polyether ketone ketone composite material and a preparation method thereof, which belongs to the field of engineering plastics and also belongs to the field of nano composite materials. Background technique [0002] Polyether ketone ketone is one of the special engineering plastics polyarylether ketone series. It is another special structural thermoplastic resin developed after polyether ether ketone. It has excellent mechanical properties, chemical corrosion resistance, heat resistance, and radiation resistance. and flame retardancy etc. Many of its properties are similar to metals, but its density is small, and its molding process is simple. It has good application prospects in the fields of defense equipment, aerospace, electronics, biomedicine, etc., and has become a hot spot in the field of polymer material research. Polyether ketone ketone has the advantages of non-toxicity, lig...

Claims

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Application Information

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IPC IPC(8): C08G65/40C08K9/06C08K3/22
CPCC08G65/40C08K3/22C08K9/06C08K2003/2227C08K2201/011
Inventor 马忠实宣正伟张祥成吴健
Owner ZHANGJIAGANG XIANGCHENG MEDICAL MATERIAL SSCI & TECH CO LTD
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