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A kind of carbon fiber reinforced polylactic acid 3D printing material and preparation method thereof

A 3D printing and carbon fiber technology, applied in the field of 3D printing materials, can solve the problem of no carbon fiber reinforced polylactic acid 3D printing materials, and achieve the effect of improving the overall performance and improving the interface composite performance.

Active Publication Date: 2017-04-26
吉林庭然景观材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These patents only involve antistatic products and general product applications of carbon fiber reinforced polylactic acid. So far, there is no relevant report on carbon fiber reinforced polylactic acid 3D printing materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A high-performance carbon fiber reinforced polylactic acid 3D printing material, the raw material formula is: American NatureWorks 3001D polylactic acid 400g, polyadipate / butylene terephthalate 40g, styrene-acrylonitrile-glycidyl methacrylate Terpolymer 15g, modified carbon fiber 25g, [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester 2.5g, tris[2.4-di-tert-butylphenyl] Phosphate ester 2.5g, N,N'-bis(2,6-diisopropylphenyl) carbodiimide 2.5g, phenyl phosphonate zinc 2.5g, dibutyl diglyceride adipate 7.5g, Terpene resin 2.5g.

[0039] Wherein, the preparation method of the modified carbon fiber is: place 25 g of T300 length 2 mm carbon fiber short fibers with a single bundle linear density of 400 g / km in 500 mL of 60 wt % nitric acid solution, oxidize at 50 ° C for 80 minutes, and rinse with deionized water for 3 Once, place in a vacuum oven and dry at 80°C for 8 hours; then put the oxidized carbon fibers in a high-speed mixer, and spray 1.25g of vi...

Embodiment 2

[0043]A high-performance carbon fiber reinforced polylactic acid 3D printing material, the raw material formula is: American NatureWorks 2003D polylactic acid 375g, polyadipate / butylene terephthalate 30g, styrene-acrylonitrile-glycidyl methacrylate Terpolymer 22.5g, modified carbon fiber 50g, [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester 2.5g, bis(2,4-di-tert-butylphenol ) Pentaerythritol diphosphite 2.5g, N,N'-bis(2,6-diisopropylphenyl) carbodiimide 2.5g, sodium dimethylphenyl phosphonate 2.5g, tributyl citrate 50g, rosin resin 2.5g.

[0044] Among them, the preparation method of the modified carbon fiber is: place 50 g of T300 short carbon fiber with a length of 2 mm in length of 200 g / km in 1000 mL of 60 wt % nitric acid solution, oxidize at 50 ° C for 120 minutes, and rinse with deionized water 3 times, placed in a vacuum oven and dried at 80°C for 8 hours; then put the oxidized carbon fibers in a high-speed mixer, and sprayed 2.5g of vinyltr...

Embodiment 3

[0048] A high-performance carbon fiber reinforced polylactic acid 3D printing material, the raw material formula is: 240g of American NatureWorks 3001D polylactic acid, 100g of American NatureWorks 4032D polylactic acid, 40g of polyadipate / butylene terephthalate, styrene-methacrylic acid 20g of binary copolymer of glycidyl ester, 75g of modified carbon fiber, 2.5g of 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanuric acid, 2.5g of tris[2.4-di-tert- Butylphenyl]phosphite 2.5g, N,N'-bis(2,6-diisopropylphenyl) carbodiimide 2.5g, zinc phenylphosphonate 2.5g, tributyl citrate 7.5g g, 2.5 g of terpene resin.

[0049] Among them, the preparation method of the modified carbon fiber is: place 75g of T300 short carbon fiber with a length of 2.5mm in 1500mL of 60wt% nitric acid solution with a single-bundle linear density of 200 g / km, oxidize it at room temperature for 60 minutes, and rinse with deionized water Rinse 3 times, dry in a vacuum oven at 80°C for 8 hours; then put the...

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Abstract

The invention provides a carbon fiber enhanced polylactic acid 3D printing material and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 60 to 80 parts of polylactic acid, 5 to 15 parts of toughening agent, 2 to 10 parts of compatibilizing agent, 5 to 25 parts of modified carbon fibers, 0.1 to 2 parts of antioxidant, 0.5 to 2 parts of anti-hydrolysis agent, 0.05 to 1 part of crystallizing nucleating agent, 0.5 to 3 parts of mobile regulating agent and 0.2 to 2 parts of melt fusion enhancing agent. By adopting a surface modification technology of carbon fibers, the interface compounding performance with polylactic acid is improved; aiming at FDM (frequency division multiplex) 3D printing characteristics, the mobile regulating agent and the melt fusion enhancing agent are added so that the specific value between the strength of a printing material and the strength of a parent material is effectively improved; aiming at a phenomenon that the printing material is not dried before utilization, the anti-hydrolysis agent is used for inhibiting a problem that polylactic acid is easy to hydrolyze in a printing process; the whole performance of the material is improved through the coordination of the components in the formula.

Description

[0001] (1) Technical field [0002] The invention belongs to the technical field of 3D printing materials, in particular to a high-performance carbon fiber-reinforced polylactic acid 3D printing material applied to Fused Deposition Modeling (FDM) and a preparation method thereof. [0003] (2) Background technology [0004] 3D printing technology, also known as additive manufacturing technology, is a kind of rapid prototyping technology. The technique of constructing objects in a way. Common 3D printing technologies include fused deposition modeling (FDM), solidification forming (SLA), laminated solid manufacturing (LOM) and selective laser sintering (SLS). The most commonly used 3D printers are devices using FDM technology. [0005] At present, the materials used in FDM printers on the market mainly include ABS, PLA, etc. Compared with PLA, ABS materials will produce unpleasant smells and affect the environment when printing, ABS will produce warping deformation when printing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L67/02C08L25/14C08L93/04C08L45/00C08L57/02C08K13/06C08K9/06C08K9/02C08K7/06C08K5/11B33Y70/00B29B9/06B29C47/92B29C48/92
Inventor 钱欣金泽枫李方圆周密金杨福
Owner 吉林庭然景观材料科技有限公司
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