Preparation method of 3D printing bionic continuous carbon fiber reinforced resin-based composite material

A biomimetic composite material, reinforced resin-based technology, applied in additive processing, 3D object support structure, additive manufacturing, etc., can solve the problems of high production cost and limited reinforcement effect, and achieve improved mechanical strength, wide application range, mechanical Significant effect of strength gain

Inactive Publication Date: 2021-08-06
JILIN UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Facing the technical advantages of 3D printing, how to improve the mechanical strength of 3D printing continuous carbon fiber reinforced ABS resin matrix composites has become a key issue that needs to be broken through. Most domestic and foreign researchers focus on the research of material modification, carbon fiber surface treatment and other methods, although The above method has achieved certain results, but the preparation cost is high and the reinforcement effect is limited. Therefore, there is an urgent need for a low-cost, simple and efficient method to improve the mechanical strength of 3D printing continuous carbon fiber reinforced ABS resin matrix composites

Method used

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  • Preparation method of 3D printing bionic continuous carbon fiber reinforced resin-based composite material
  • Preparation method of 3D printing bionic continuous carbon fiber reinforced resin-based composite material
  • Preparation method of 3D printing bionic continuous carbon fiber reinforced resin-based composite material

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preparation example Construction

[0046] A method for preparing a 3D printing bionic continuous carbon fiber reinforced resin-based composite material of the present invention, the preparation steps are as follows:

[0047] Step 1: Composition of Raw Materials

[0048] A: The continuous carbon fiber whose specification is 1K is the reinforcing phase;

[0049] B: Based on ABS thermoplastic resin coil suitable for fused deposition 3D printing;

[0050]C: The mass fraction of continuous carbon fiber in the composite material ranges from 5wt.% to 15wt.%;

[0051] Step 2: Equipment debugging

[0052] A: The continuous carbon fiber is ultrasonically treated in a H2SO4 / HNO3 mixture with a volume ratio of 3:1 for 3 hours to improve its interface wettability;

[0053] B: ABS resin was dried at 30°C for 24 hours;

[0054] C: Based on the self-built 3D printer, the ABS resin is printed to the heating platform through the nozzle, and then the continuous carbon fiber is put into the extrusion mechanism, so that it is p...

Embodiment 1

[0068] The bionic layered helical structure was established by analyzing the microstructure of mantis shrimp claws.

[0069] see figure 1 , figure 2 and image 3 , the present invention adopts self-constructed fused deposition 3D printer, heats the nozzle to reach the melting point of the ABS resin to make it fluid, and with the assistance of the feed gear, the ABS resin wraps the continuous carbon fiber during extrusion and drives which is placed on a heated platform (such as figure 1 shown); the claws of mantis shrimp are composed of multi-layer mineralized fiber thin-layer structures; each thin-layer structure is stacked at a certain angle to form a layered helical structure (such as figure 2 shown); this structure is the basis for the high mechanical properties of the mantis shrimp claw. According to the microstructure characteristics of mantis shrimp claws, combined with 3D printing technology and application characteristics, a image 3 The bionic layered spiral st...

Embodiment 2

[0071] The biomimetic continuous carbon fiber reinforced resin matrix composite was prepared by 3D printing and its mechanical strength was tested.

[0072] see Figure 4 to Figure 11 ,based on Figure 4 The established bionic layered helical structure has successfully prepared bionic continuous carbon fiber reinforced resin matrix composites through 3D printers, such as Figure 4-6 shown. through as Figure 7 The microstructure analysis shown shows that the continuous carbon fibers are completely arranged in the designed layered spiral form, which proves the feasibility of 3D printing method and bionic structure design. combine as Figure 8 , Figure 9 As can be seen from the stress-strain and impact toughness data analysis of the carbon fiber homodirectional arrangement structure sample and the pure ABS resin sample, the bionic continuous carbon fiber reinforced resin matrix composite material has the highest tensile strength and impact toughness, which proves the prese...

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Abstract

The invention discloses a preparation method of a 3D printing bionic continuous carbon fiber reinforced resin-based composite material. The 3D printing bionic continuous carbon fiber reinforced resin-based composite material is prepared by taking a mantis shrimp chela layered spiral structure with a high mechanical strength characteristic as a bionic design basis, taking continuous carbon fibers and ABS thermoplastic resin as a reinforcing phase and a matrix correspondingly through an autonomously built 3D printing platform, the integration of the continuous carbon fiber and the ABS resin is realized, and a layered spiral structure is formed in a high-precision mode. The traditional material modification thought is broken through, the 3D printing bionic composite material realizes bionic efficient reproduction of mechanical characteristics of mantis shrimps, and has the advantages of high tensile strength and impact toughness, low preparation cost, simple and efficient preparation method, high forming precision and wide application range; and an effective new thought is provided for designing and preparing the carbon fiber reinforced resin-based composite material with high precision and high strength.

Description

technical field [0001] The invention relates to the technical field of engineering materials, in particular to a method for preparing a 3D printing bionic continuous carbon fiber reinforced resin-based composite material. Background technique [0002] Carbon fiber-reinforced thermoplastic resin-based composites take into account the high tensile strength and fatigue strength of carbon fibers and the recyclability of thermoplastic resins, and have been widely used in the field of engineering materials. Among the many types of carbon fiber, compared with chopped carbon fiber, continuous carbon fiber has the characteristics of improving the overall strength of composite materials through simple and effective arrangement forms. Among many thermoplastic resin materials, ABS resin has higher corrosion resistance and wear resistance. , Impact resistance, therefore, continuous carbon fiber reinforced ABS resin composites are widely used in automotive, aerospace and other fields due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/118B29C64/314B29C64/386B33Y10/00B33Y40/10B33Y50/00B33Y80/00C08L55/02C08K9/02C08K7/06C08J5/06
CPCB29C64/118B29C64/314B29C64/386B33Y10/00B33Y40/10B33Y50/00B33Y80/00C08J5/06C08J2355/02C08K9/02C08K7/06
Inventor 赵骞林兆华梁云虹韩志武刘畅庹智伟任雷
Owner JILIN UNIV
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