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Medical stone modified nylon microsphere material, its preparation method and its application in 3D printing

A modified nylon and 3D printing technology, applied in the polymer field, can solve the problems of poor toughness, poor stability, and low product strength, and achieve the effects of large surface area, improved mechanical strength, and reduced production costs.

Inactive Publication Date: 2014-12-31
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common nylon powder materials used for 3D printing are prepared by directly crushing nylon resin or dissolving it in an organic solvent and then crystallizing it. The stability of the raw material is poor, and the resulting product has low strength and poor toughness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Prepare raw materials according to the following proportions:

[0043] 100 parts of nylon 4 microspheres,

[0044] Nano medical stone 10 parts,

[0045] The coupling agent is 2 parts of 3-aminopropyltriethoxysilane,

[0046] Lubricant ethylene bis stearamide 0.5 part

[0047] Lubricant ethylene-acrylic acid copolymer 0.5 parts,

[0048] 0.1 part of light stabilizer 2,4-dicarboxybenzophenone,

[0049] 0.1 part of light stabilizer 2-hydroxyl-4-n-octyloxybenzophenone,

[0050] 0.1 parts of antifoaming agent dimethyl polysiloxane,

[0051] Defoamer ethylene oxide propylene oxide copolyether 0.1 part,

[0052] Leveling agent silicone-ethylene oxide copolymer 0.1 part,

[0053] Leveling agent silicone-propylene oxide copolymer 0.1 part,

[0054] 0.1 part of antioxidant tetrakis (3,5-di-tert-butyl-4-hydroxyl) pentaerythritol phenylpropionate,

[0055] Antioxidant N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine 0.1 part.

[0056] (2) ...

Embodiment 2

[0060] (1) Prepare raw materials according to the following proportions:

[0061] 100 parts of nylon 4 microspheres,

[0062] Nano medical stone 10 parts,

[0063] The coupling agent is 10 parts of 3-aminopropyltriethoxysilane,

[0064] Lubricant ethylene bis stearamide 1 part,

[0065] 1 part of light stabilizer 2,4-dicarboxybenzophenone,

[0066]1 part of antifoaming agent dimethyl polysiloxane,

[0067] Leveling agent silicone-ethylene oxide copolymer 1 part,

[0068] Antioxidant tetrakis(3,5-di-tert-butyl-4-hydroxy)pentaerythritol phenylpropionate 1 part.

[0069] (2) Add the above-mentioned raw materials into the container one after another, and stir at a high speed for 40 minutes at 35°C until they are evenly dispersed to obtain the medical stone modified nylon microsphere material;

[0070] (3) The medical stone-modified nylon microsphere material was prepared as a workpiece on the 3D printing equipment. The process parameters were: light source power 5W, scanning...

Embodiment 3

[0073] (1) Prepare raw materials according to the following proportions:

[0074] 100 parts of nylon 6 microspheres,

[0075] Nano medical stone 10 parts,

[0076] 5 parts of coupling agent maleic anhydride grafted polypropylene,

[0077] Lubricant ethylene bis stearamide 2 parts,

[0078] 2 parts of light stabilizer 2,4-dicarboxybenzophenone,

[0079] Antifoaming agent dimethyl polysiloxane 2 parts,

[0080] Leveling agent silicone-ethylene oxide copolymer 2 parts,

[0081] 1.5 parts of antioxidant tetrakis(3,5-di-tert-butyl-4-hydroxy)pentaerythritol phenylpropionate.

[0082] (2) Add the above-mentioned raw materials into the container one after another, and stir at a high speed for 40 minutes at 35°C until they are evenly dispersed to obtain the medical stone modified nylon microsphere material;

[0083] (3) The medical stone-modified nylon microsphere material was prepared as a workpiece on the 3D printing equipment. The process parameters were: light source power 5W...

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Abstract

The invention provides a medical stone modified nylon microsphere material, its preparation method and its application in 3D printing. The medical stone modified nylon microsphere material is prepared by using 100 parts of s nylon microsphere, 10-40 parts of nanometer medical stone, 2-10 parts of a coupling agent, 0.5-5 parts of a lubricant, 0.1-5 parts of a light stabilizer, 0.1-5 parts of an antifoaming agent, 0.1-5 parts of a leveling agent and 0.1-2 parts of an antioxidant. The material prepared in the invention has a substantially higher impact strength than materials fully adopting the nanometer microsphere, makes products have certain bacterial resistance, and has the advantages of simple operation technology, great cost reduction, and adaption to large scale production.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a medical stone modified nylon microsphere material, a preparation method and the application of the material in 3D printing. [0002] Background technique [0003] 3D printing technology has been around for 20 years, but the real large-scale investment in capital and technology has only started in recent years. Laser curing molding technology uses lasers with specific wavelength and intensity to focus on the surface of light-curing materials. Lines, from line to surface, complete the drawing of one layer, and then solidify other layers through vertical movement, finally forming a three-dimensional entity. [0004] 3D printing is the use of laser beams, hot-melt nozzles, etc. to stack and bond special materials such as metal powder, ceramic powder, plastic, and cell tissue layer by layer, and finally superimpose and shape them to produce physical products. Common nylon powder ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K13/04C08K7/24C08K3/34B29C67/04
CPCC08L77/02B29C67/04C08L2201/08C08L2203/20C08L2205/02C08L2205/03C08L2205/035
Inventor 杨桂生李枭姚晨光
Owner HEFEI GENIUS NEW MATERIALS
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