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Polylactic acid composite material applied to FDM (Fused Deposition Modeling) forming technology and preparation method thereof

A composite material, polylactic acid technology, applied in the direction of additive processing, etc., can solve the problems that modified polylactic acid cannot meet

Inactive Publication Date: 2018-10-19
KOCEL INTELLIGENT FOUNDRY IND INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to address the problem that the performance of the modified polylactic acid selected in the FDM molding technology in the prior art cannot meet the high-precision requirements of 3D printing products, and provide a method that can effectively improve the modified performance of polylactic acid to meet the requirements of 3D printing. Polylactic acid composite material and its preparation method applied to FDM molding technology with high precision requirements

Method used

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  • Polylactic acid composite material applied to FDM (Fused Deposition Modeling) forming technology and preparation method thereof
  • Polylactic acid composite material applied to FDM (Fused Deposition Modeling) forming technology and preparation method thereof

Examples

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example 1

[0038] Other additives described in Example 1 are: 0.5 parts of KH-560 silane coupling agent, 1.0 parts of polycarbodiimide compound, 0.5 part of monocarbodiimide compound, and 3.0 parts of maleic anhydride grafted polymer.

example 2

[0039] Other additives described in Example 2 are respectively: 0.8 parts of KH-560 silane coupling agent, 1.2 parts of polycarbodiimide compound, 0.8 part of monocarbodiimide compound, methyl methacrylate-butadiene- 3.5 parts of terpolymer of styrene copolymer.

example 3

[0040] Other auxiliary agents described in Example 3 are respectively: 1.5 parts of titanic acid coupling agent, 1.5 parts of polycarbodiimide compound, 0.3 part of monocarbodiimide compound, 4.0 parts of terpolymer of GMA-ethylene-methyl acrylate share.

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Abstract

The invention relates to a polylactic acid composite material applied to an FDM (Fused Deposition Modeling) forming technology and a preparation method thereof. The polylactic acid composite materialis prepared from the following components in parts by mass: 100 parts of polylactic resin, 10 to 30 parts of metal powder, 2 to 15 parts of a toughening agent, and 3 to 10 parts of other aids. The preparation method comprises the following steps: drying raw materials, processing metal powder and preparing mixed liquor; adding the dried polylactic resin and the treated metal powder into 2 to 15 parts of the toughening agent and 3 to 10 parts of the other aids to be mixed; adding the mixed liquor into a same-direction rotating mixing twin-screw extruder to be mixed and extruded out. When the preparation method is utilized to prepare the polylactic acid composite material applied to the FDM forming technology, modifying performance of polylactic acid is effectively improved, and a high accuracy requirement for 3D printed products is met.

Description

technical field [0001] The invention relates to the field of FDM printing materials, in particular to a polylactic acid composite material applied to FDM molding technology and a preparation method thereof. Background technique [0002] FDM (Fused Deposition Modeling, fused deposition modeling) technology is currently one of the most widely used 3D printing technologies. However, the selection of printing materials in FDM molding technology has become a major and difficult problem that limits the development of 3D printing. At present, the materials suitable for FDM molding technology mainly include acrylonitrile-butadiene-styrene copolymer (ABS), polylactic acid resin (PLA), polycarbonate (PC), polyphenylsulfone (PPSF) and polyterephthalene Ethylene glycol formate-1,4-cyclohexanedimethanol (PETG), polyether ether ketone (PEEK), etc. Among them, polylactic acid resin (PLA) is non-toxic, has no pungent odor, has excellent biodegradability, and is easily decomposed and repla...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L9/02C08L13/00C08K9/06C08K9/04C08K3/08B33Y70/00
CPCB33Y70/00C08K2003/0812C08K2003/085C08K2003/0856C08L67/04C08L9/02C08L13/00C08K9/06C08K9/04C08K3/08
Inventor 李天才郭永斌张景豫
Owner KOCEL INTELLIGENT FOUNDRY IND INNOVATION CENT CO LTD
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