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A kind of 3D printing material and preparation method thereof

A 3D printing and raw material technology, applied in the direction of additive processing, etc., can solve the problems of insufficient weather resistance, poor mechanical strength, etc., and achieve the effects of improving the variety, increasing the mechanical modulus, and reducing the difficulty of processing

Active Publication Date: 2020-11-13
惠州康脉生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most widely used molding technology in the field of additive manufacturing - fused deposition technology (FDM), the current FDM 3D printing consumables have defects such as poor mechanical strength and insufficient weather resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An embodiment of the 3D printing material of the present invention includes the following raw materials in weight percentage: 73% polymer, 10% polycarbonate, 5% metal powder, 10% carbon fiber, and 1% adhesive , calcium carbonate 1%; wherein, the high molecular polymer is polyimide, the adhesive is epoxy resin EP-12, and the average particle diameter of the calcium carbonate is 50nm; the metal powder is aluminum Silver alloy powder, the average particle diameter of the aluminum-silver alloy powder is 1 μm; the average single-bundle diameter of the carbon fibers is 70 μm, and the average length is 3 mm.

[0035] The preparation method of the 3D printing material described in this embodiment comprises the following steps:

[0036] (1), drying: drying the polymer and polycarbonate at 130°C for 24 hours;

[0037] (2), granulation: mix the dried polymer, polycarbonate and calcium carbonate, heat and extrude granulation to obtain granule A;

[0038] (3) Dispersion: Ultrasoni...

Embodiment 2

[0044]An embodiment of the 3D printing material of the present invention includes the following raw materials in weight percentage: 70% polymer, 20.5% polycarbonate, 7% metal powder, 1% carbon fiber, and 0.5% adhesive , calcium carbonate 1%; wherein, the polymer is polyetherimide, the adhesive is epoxy resin EP-16, and the average particle diameter of the calcium carbonate is 50nm; the metal powder is Silver powder, the average particle size of the silver powder is 1 μm; the average diameter of a single bundle of carbon fibers is 70 μm, and the average length is 3 mm.

[0045] The preparation method of the 3D printing material described in this example is the same as that in Example 1.

Embodiment 3

[0047] An embodiment of the 3D printing material of the present invention comprises the following raw materials in weight percentage: 55% polymer, 8% polycarbonate, 20% metal powder, 10% carbon fiber, and 5% adhesive , calcium carbonate 2%; wherein, the high molecular polymer is polyether ether ketone, the adhesive is epoxy resin EP-16, and the average particle diameter of the calcium carbonate is 50nm; the metal powder is magnesium powder, the average particle size of the magnesium powder is 1 μm; the average diameter of a single bundle of the carbon fibers is 100 μm, and the average length is 20 mm.

[0048] The preparation method of the 3D printing material described in this example is the same as that in Example 1.

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Abstract

The invention discloses a 3D printing material. The 3D printing material is prepared from raw materials in percentage by weight as follows: 55%-90% of a high-molecular polymer, 1%-45% of a polymeric additive, 1%-20% of metal powder, 0.1%-10% of carbon fibers, 0.1%-5% of a binding agent and 0.1%-5% of inorganic filler, wherein the high-molecular polymer is at least one of polyimide, polyetherimide and polyetheretherketone; the polymeric additive is polycarbonate. The invention further provides a preparation method of the 3D printing material. The 3D printing material has excellent performance in the aspects of mechanical strength, heat resistance, corrosion resistance, thermal conductivity, electrical conductivity, antistatic property and the like, can meet requirements of most conventional industrial applications, and facilitates improvement of current situations of various varieties and uneven performance of existing FDM3D printing supplies.

Description

technical field [0001] The invention relates to a polymer material, in particular to a 3D printing material and a preparation method thereof. Background technique [0002] 3D printing, also known as additive manufacturing, is a type of personalized processing technology that complements traditional craftsmanship. In recent years, 3D printing technology has been a research hotspot in various fields, but its development time is still relatively short, and there are still some imperfections in all aspects. The limited types of consumables and insufficient performance are an important problem facing 3D printing. Compared with traditional processing methods, 3D printing technology is more dependent on the performance of 3D printing consumables due to its own loosely stacked manufacturing process, internal stress and defects that cannot achieve polymer self-reinforcement through orientation and crystallization. At present, the most widely used molding technology in the field of a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/08C08L61/16C08L69/00C08L63/00C08K13/04C08K3/08C08K7/06C08K3/26B33Y70/10
CPCB33Y70/00C08K2003/0806C08K2003/0812C08K2003/0881C08K2003/265C08K2201/003C08K2201/004C08L61/16C08L79/08C08L2201/04C08L2201/08C08L2205/03C08L69/00C08L63/00C08K13/04C08K3/08C08K7/06C08K3/26C08K3/06
Inventor 金振华曾晨光杨习锋
Owner 惠州康脉生物材料有限公司