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Carbon fiber composite material for fused deposition 3D printing and preparation method thereof

A 3D printing and fused deposition technology, which is applied in the field of carbon fiber composite materials for fused deposition 3D printing and its preparation, can solve the problems of complex molding process, high cost, and difficulty in molding large-scale products, and achieves simple and effective process. Effects of interfacial interaction, flexural strength and tensile strength enhancement

Inactive Publication Date: 2016-03-30
QINGDAO UNIQUE PRODS DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3D printing materials based on laser sintering (SLS) technology are powder materials such as carbon fiber reinforced composite materials. The printed part is reinforced by layer-by-layer sintering. Complex, high cost, and difficult to form large products

Method used

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  • Carbon fiber composite material for fused deposition 3D printing and preparation method thereof
  • Carbon fiber composite material for fused deposition 3D printing and preparation method thereof
  • Carbon fiber composite material for fused deposition 3D printing and preparation method thereof

Examples

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Effect test

preparation example Construction

[0021] Such as figure 1 As shown, the preparation method of the carbon fiber composite material for fused deposition 3D printing comprises the following steps:

[0022] Step S11: Liquid-phase oxidation treatment, including liquid-phase oxidation treatment of carbon fibers, including putting chopped carbon fibers in 68% concentrated nitric acid, heating in a water bath at 80°C for 2 hours, and then rinsing with distilled water until the pH of the distilled water is 7 Or so, finally put the carbon fiber in a 105°C oven to dry for 2 hours.

[0023] Step S12: Coupling and grafting treatment, including coupling and grafting the carbon fibers treated in step S11, including coating with a 2% ethanol solution of a titanate coupling agent or a 1% acetone solution of a silane coupling agent After coating, the carbon fiber is allowed to air dry.

[0024] Step S13: Drying the thermoplastic resin.

[0025] The thermoplastic resin raw material was put into a drier and dried at 100° C. fo...

Embodiment 1

[0034] The carbon fiber reinforced ABS resin composite material is composed of the following components by mass percentage:

[0035]ABS resin: 68%-88%; carbon fiber: 10%-30%; masterbatch 0-0.5%; antioxidant: 0.1%-0.5%; dispersant (processing aid) 0.1%-0.5%.

Embodiment 2

[0037] The carbon fiber reinforced polyamide 12 resin composite material is composed of the following components by mass percentage:

[0038] Polyamide 12 resin: 68%-88%; carbon fiber: 10%-30%; masterbatch 0-0.5%; antioxidant: 0.1%-0.5%; dispersant (processing aid) 0.1%-0.5%.

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Abstract

The invention provides a carbon fiber composite material for fused deposition 3D printing and a preparation method thereof. The preparation method comprises the following steps: subjecting chopped carbon fibers to a liquid phase oxidation treatment and a coupling grafting treatment, then evenly mixing 10 to 30 wt% of chopped carbon fiber, 68 to 88 wt% of dried thermoplastic resin, 0 to 0.5 wt% of color master batch, 0.1 to 0.5 wt% of antioxidant, and 0.1 to 0.5 wt% of processing aid, heating, and extruding the mixture into filaments by a double screw extruder so as to obtain the carbon fiber composite material for fused deposition 3D printing. Compared with the prior art, the products made of the provided carbon fiber composite material has the advantages that impact strength, bending strength, and tensile strength are all prominently improved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing based on fused deposition technology, and in particular relates to a carbon fiber composite material for fused deposition 3D printing and a preparation method thereof. Background technique [0002] 3D printing is a form of rapid prototyping technology, the principle of which is to create physical objects by printing layer by layer. Among the 3D printing technologies, the common ones are fused deposition 3D printing technology and laser sintering 3D printing technology. [0003] 3D printing materials based on fused deposition technology (FDM) are mainly thermoplastics and resin materials, such as PLA, ABS, PC, nylon; when printing, the printing head is heated, and the printing material is heated and softened and then extruded; the printed product Impact strength, flexural strength and tensile strength are all limited. 3D printing materials based on laser sintering (SLS) technology are powder ...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L77/02C08L77/06C08K13/06C08K9/02C08K9/04C08K7/06C08K5/13C08K5/524
CPCC08K13/06C08K5/13C08K5/524C08K7/06C08K9/02C08K9/04C08L77/06C08L77/02C08L55/02
Inventor 王红阚生东闫君
Owner QINGDAO UNIQUE PRODS DEV
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