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Self-repairing enhanced polyarylether composite material and preparation method thereof

A technology of composite material and polyarylether, which is applied in the field of self-repairing enhanced polyarylether composite material and its preparation, can solve problems such as difficulties and achieve excellent mechanical properties, prolong service life and high melting point

Active Publication Date: 2017-01-18
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current self-healing polymer materials are mainly limited to soft or stretchable polymer materials, and as engineering plastics, special warfare engineering plastics and other application fields with important value, it is much more difficult to realize the self-healing function. There are few reports on this

Method used

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  • Self-repairing enhanced polyarylether composite material and preparation method thereof
  • Self-repairing enhanced polyarylether composite material and preparation method thereof
  • Self-repairing enhanced polyarylether composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Dissolve 5g of p-aminophenylboronic acid in 10g of ethanol to make a uniform mixed solution, then add this mixed solution, 90g of polyethersulfone resin, 20g of carboxyl-containing polyethersulfone and 1g of triphenyl phosphite to the high-speed In a mixer, mix at room temperature for 10 minutes to obtain a mixed masterbatch;

[0028] (2) Dry the uniformly dispersed mixed masterbatch at a temperature of 50°C and a vacuum of 0.05MPa for 6 hours to obtain a dried mixed masterbatch; then add the masterbatch from the main feeding port of the twin-screw extruder , set the screw speed at 50rpm, and the temperature at 330°C; at the same time, add 60g of glass fiber from the side feeding port of the twin-screw extruder, melt and blend for 2min, extrude, cool, granulate, and dry to obtain self-repairing reinforcement type polyaryl ether sulfone composite material; it was injection molded into a standard tensile spline, and a gap with a width of 0.1mm and a depth of 1mm was c...

Embodiment 2

[0030] (1), 10g of p-carboxyphenylboronic acid was dissolved in 20g of acetone to make a uniform mixed solution, and then the mixed solution was mixed with 30g of polyphenylene sulfide resin, 5g of amino-containing polyphenylene sulfide, and 0.1g of trimethyl chloride Add silicon oxide into the high-speed mixer together, and mix for 1 min at room temperature to obtain a mixed masterbatch;

[0031] (2) Dry the uniformly dispersed mixed masterbatch at a temperature of 30°C and a vacuum of 0.085MPa for 1 hour to obtain a dried mixed masterbatch; then add the masterbatch from the main feeding port of the twin-screw extruder , set the screw speed at 200rpm, and the temperature at 290°C; at the same time, add 10g of carbon fiber from the side feeding port of the twin-screw extruder, melt and blend for 10min, extrude, cool, granulate, and dry to obtain a self-repairing enhanced type Polyphenylene sulfide composite material; inject it into a standard tensile spline, and cut a gap with...

Embodiment 3

[0033] (1), 0.1g of p-hydroxyphenylboronic acid was dissolved in 1g of ethyl formate to form a uniform mixed solution, and then this mixed solution was mixed with 40g of polyphenylene sulfide resin, 2g of carboxyl-containing polyphenylene ether, and 5g of stannous octoate. and added to a high-speed mixer, and mixed for 6 minutes at room temperature to obtain a mixed masterbatch;

[0034] (2) Dry the uniformly dispersed mixed masterbatch at a temperature of 80°C and a vacuum of 0.095MPa for 1 hour to obtain a dried mixed masterbatch; then add the masterbatch from the main feeding port of the twin-screw extruder , set the screw speed at 120rpm, and the temperature at 300°C; at the same time, add 40g of aramid 1414 fiber from the side feeding port of the twin-screw extruder, melt and blend for 4min, extrude, cool, granulate, and dry to obtain the self- Repair the reinforced polyarylether composite material; inject it into a standard tensile spline, and cut a gap with a width of 0...

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Abstract

The invention discloses a self-repairing enhanced polyarylether composite material and a preparation method thereof, which are characterized in that the self-repairing enhanced polyarylether composite material is prepared by the following steps: dissolving 0.1 to 10 parts of a boron-containing organic micromolecular crosslinking agent into 1 to 20 parts of a dispersing agent to prepare uniform mixed liquid, adding the mixed liquid, 30 to 90 parts of polyarylether matrix resin, 0.1 to 20 parts of an active functional group-containing polymer-based crosslinking agent and 0.1 to 5 parts of a catalyst into a high-speed mixer, and mixing at room temperature for 1 to 10 minutes to obtain master batches; drying the master batches which are dispersed uniformly for 1 to 6 hours under the conditions that the temperature is 30 to 80 DEG C and the vacuum degree is 0.05 to 0.095 MPa to obtain mixed master batches; adding the mater batches from a main feeding port of a double-screw extruder, wherein the threaded rod rotating speed is 50 to 200 rpm and the temperature is 270 to 380 DEG C; meanwhile, adding 10 to 60 parts of reinforcing fillers from a side feeding port of the double-screw extruder, melting and blending for 2 to 10 minutes, extruding, cooling, pelletizing and drying to obtain the self-repairing enhanced polyarylether composite material; the self-repairing enhanced polyarylether composite material is formed into a stretching sample strip with standard notches through injection molding and the average tensile strength of the self-repairing enhanced polyarylether composite material is tested; the tensile properties of the composite material before and after stretching are compared, and the self-pairing property and the effect of the material are analyzed.

Description

technical field [0001] The invention relates to a self-repairing enhanced polyarylether composite material and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] Polyaryl ethers, such as polyphenylene sulfide, polyphenylene sulfide ketone, polyphenylene sulfide sulfone, polyphenylene sulfide nitrile, polyphenylene sulfide amide, polyphenylene ether, polyether sulfone, polyether ketone, polyether ether ketone , polyarylether nitrile, etc. are widely used in automobiles, aerospace and electronic engineering technologies due to their high temperature resistance, corrosion resistance, excellent electrical properties, mechanical properties and dimensional stability. Self-healing polymer materials are an emerging and important research field in the field of polymer research. Using this technology can make materials have the function of gradually repairing after damage like biological tissues, so as to improve the service life o...

Claims

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Application Information

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IPC IPC(8): C08L81/06C08L81/02C08L61/16C08L71/10C08L77/00C08K5/55
CPCC08L61/16C08L71/00C08L77/00C08L81/02C08L81/06C08L2201/08C08L2205/025C08K5/55
Inventor 张刚杨杰任浩浩严光明卢杰宏
Owner SICHUAN UNIV
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