Carbon fiber/polyphenylene sulfide composite material and preparation method and application thereof

A polyphenylene sulfide and composite material technology, applied in the direction of additive processing, etc., can solve the problems of inability to accurately control the uniform content of carbon fibers, low bonding force between layers of printed parts, and complicated surface treatment of carbon fibers, and achieve low shrinkage. Mechanical properties, easy preservation

Active Publication Date: 2021-10-22
江西省纳米技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PPS has extremely strong rigidity, poor toughness, and high surface hardness. When it is directly used in 3D printing, there will be delamination, and the bonding force between the layers of the printed part is low. Using carbon fiber for modification can improve the mechanical properties of PPS and increase the toughness and improve PPS. Application of materials in FDM 3D printing
Existing FDM3D printing filaments, such as PA, PLA, and ABS, have high water absorption and are not easy to store; there is also the use of traditional methods to directly add dusty carbon fibers, which cannot accurately control the carbon fibers in each masterbatch during the melting production process. The uniform content of carbon fiber; in addition, the surface treatment of carbon fiber in the traditional method is too complicated, and it is not easy to process in batches

Method used

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  • Carbon fiber/polyphenylene sulfide composite material and preparation method and application thereof
  • Carbon fiber/polyphenylene sulfide composite material and preparation method and application thereof
  • Carbon fiber/polyphenylene sulfide composite material and preparation method and application thereof

Examples

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preparation example Construction

[0026] One aspect of the embodiments of the present invention provides a method for preparing a carbon fiber / polyphenylene sulfide composite material, which includes:

[0027] Carry out surface pretreatment to carbon fiber to obtain pretreated carbon fiber;

[0028] Uniformly mixing the pretreated carbon fiber, carrier, dispersant and solvent and performing granulation treatment to obtain carbon fiber masterbatch;

[0029] And, uniformly mixing the carbon fiber masterbatch, polyphenylene sulfide, toughening agent and antioxidant, and then performing granulation treatment again to obtain a carbon fiber / polyphenylene sulfide composite material.

[0030] In some more specific embodiments, the mass ratio of the carbon fiber masterbatch, polyphenylene sulfide, toughening agent and antioxidant is (5~25):(65~90):(3~5):(2 ~5).

[0031] Further, the toughening agent includes ethylene-octene copolymer (POE), styrene-butadiene thermoplastic elastomer (SBS), acrylonitrile-butadiene-styr...

Embodiment 1

[0059] (1) Treat the carbon fiber (the length of the carbon fiber is 100 mesh) by plasma surface treatment technology for 10 minutes, and then use γ-aminopropyltriethoxysilane to carry out grafting treatment to obtain the pretreated carbon fiber;

[0060] (2) Mix the pretreated carbon fiber obtained in step (1), PEG-2000, sodium dodecylbenzene sulfonate and water to form a slurry, then dry the obtained slurry to a paste, and then use a single screw to make Granulator for granulation to produce carbon fiber masterbatch;

[0061] (3) Mix the carbon fiber masterbatch, polyphenylene sulfide (PPS pellets), ethylene-octene copolymer, and antioxidant 1010 in a mass ratio of 5:80:4:4, and input them into a twin-screw extruder Carry out mixing and granulation to obtain a carbon fiber / polyphenylene sulfide composite material for 3D printing;

[0062] (4) Input the carbon fiber / polyphenylene sulfide composite material for 3D printing into a single-screw extruder for hopper extrusion, wi...

Embodiment 2

[0064] The method is the same as in Example 1, except that the mass ratio of carbon fiber masterbatch, polyphenylene sulfide (PPS pellets), toughening agent, and antioxidant is 10:80:4:4; the mechanical properties are shown in Table 1.

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Abstract

The invention discloses a carbon fiber/polyphenylene sulfide composite material and a preparation method and application thereof. The preparation method comprises the following steps: carrying out surface pretreatment on carbon fibers to obtain pretreated carbon fibers; uniformly mixing the pretreated carbon fibers, a carrier, a dispersing agent and a solvent, and performing granulation treatment to obtain carbon fiber master batches; and uniformly mixing the carbon fiber master batch, polyphenylene sulfide, a flexibilizer and an antioxidant, and performing granulation treatment to obtain the carbon fiber/polyphenylene sulfide composite material. The carbon fiber content in the prepared carbon fiber/polyphenylene sulfide composite material is controllable, the carbon fibers can be uniformly dispersed after being doped into polyphenylene sulfide, and the mechanical property of the composite material can be greatly improved; meanwhile, the carbon fiber/polyphenylene sulfide composite material 3D printing wire is low in water absorption, easy to store and low in shrinkage rate, and a prepared printing piece is not prone to edge warping and high in Young modulus.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a carbon fiber / polyphenylene sulfide composite material and its preparation method and application, in particular to a carbon fiber / polyphenylene sulfide composite material for printing and its preparation method, and carbon fiber / polyphenylene sulfide Application of ether composite materials in the preparation of FDM 3D printing filaments. Background technique [0002] 3D printing (3DP) is a kind of rapid prototyping technology, also known as additive manufacturing. It is based on digital model files, using powdered metal or plastic and other bondable materials to construct by layer-by-layer printing. object technology. Fused deposition type (FDM) is one of the most commonly used processes for 3D printing at present. It has the characteristics of simple operation, low maintenance cost, safe system operation, high raw material utilization rate and long material life. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L71/02C08L39/06C08K7/06C08K9/00C08K9/06C08J5/06C08J3/22B33Y70/10
CPCC08J5/06C08J3/226B33Y70/10C08J2381/02C08J2471/02C08J2439/06C08K7/06C08K9/00C08K9/06Y02P10/25
Inventor 张永毅邹东升段满玉朱军张亦弛罗时光
Owner 江西省纳米技术研究院
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