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Long fiber reinforced polyaryletherketone composite material and preparation method thereof

A technology of polyaryletherketone and composite materials, which is applied in the field of preparation of long-fiber reinforced polyaryletherketone composite materials and its preparation, can solve the problems of high price and achieve excellent mechanical properties

Active Publication Date: 2021-09-21
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the problems of using in-situ polymerization technology to prepare long fiber reinforced polyaryletherketone resin-based composites; the price of continuous fiber pre-impregnated polyaryletherketone resin shearing to prepare long fiber reinforced composites is too high, so there is currently no commercial product Long Fiber Reinforced Polyaryletherketone Composites

Method used

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  • Long fiber reinforced polyaryletherketone composite material and preparation method thereof
  • Long fiber reinforced polyaryletherketone composite material and preparation method thereof
  • Long fiber reinforced polyaryletherketone composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] S1: Fiber pretreatment process can be carried out according to the following examples:

[0039] Weigh 1.5 g of polyetheretherketone resin (wherein Ar is benzene-ketone-benzene, M is sodium ion) with a sulfonation degree of 50%, add 150 ml of DMF, stir and dissolve to obtain a uniform solution. Add 90g of 2mm long-cut glass fibers into the solution, stir for 15min, add the reaction system to 500mL of 5% sodium carbonate solution, soak for 12 hours, filter, and dry at 120°C for 12 hours to obtain the treated long fibers.

[0040] S2: Polyether ether ketone polymerization process and composite can be implemented according to the following examples:

[0041] Add 115 g of molten diphenyl sulfone to a reaction flask with nitrogen gas, add 43.82 g of 4,4'-difluorodiphenyl ketone into a three-necked flask equipped with mechanical stirring and a thermometer, protect with nitrogen, and heat to 160 ° C. Add 25.44g of anhydrous sodium carbonate, then heat to 165°C, add 22.00g of hyd...

Embodiment 2

[0043] The glass fiber in Example 1 was replaced with carbon fiber T700.

Embodiment 3

[0045] The amount of treated glass fiber added in Example 1 was 17.3 g.

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Abstract

The invention discloses a long fiber reinforced polyaryletherketone composite material and a preparation method thereof. Sulfonated polyaryletherketone is used for pretreating long fibers in diphenyl sulfone, and sulfonated polyaryletherketone diphenyl sulfone is poor in solubility, so that the fibers form micelles and are not easy to disperse, and diffusion and adsorption of the long fibers in an in-situ polymerization system are limited; and then the micelles are added into a polymerization system formed by a dihalogen monomer and a bisphenol monomer for polymerization and in-situ polymerization to prepare the long fiber reinforced polyaryletherketone composite material, so that the problems that the reaction cannot be carried out due to large specific surface area and easiness in adsorption of a reaction solvent and a monomer, the fibers are excessively dispersed and entangled after the reaction, and crushing is not facilitated in the in-situ polymerization process are solved.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and refers to the in-situ introduction of polyaryletherketone into long carbon fibers to prepare long-fiber reinforced polyaryletherketone composite materials and a preparation method thereof. Background technique [0002] Polyaryletherketone is a thermoplastic high-performance polymer material whose molecular chain contains benzene rings, ether and ketone as repeating units. The current industrial products include polyether ether ketone resin, polyetheretherketone ether ketone resin, etc. As a high-performance thermoplastic resin, polyaryletherketone has been widely used in aviation, aerospace, petroleum, electronics and medical fields. In order to meet the more harsh use environment, fiber reinforced polyaryletherketone composite materials have been developed and obtained a series of applications. [0003] Fiber reinforced PEEK composite materials include chopped fiber reinforced PEE...

Claims

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Application Information

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IPC IPC(8): C08G65/40C08G8/02C08K9/04C08K7/14C08K7/06C08J5/08C08J5/06C08L71/10C08L61/16
CPCC08G65/4012C08G8/02C08K9/08C08K7/14C08K7/06C08J5/08C08J5/06C08J2371/10C08J2361/16
Inventor 岳喜贵张海博庞金辉王贵宾姜振华
Owner JILIN UNIV
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