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Modified polylactic acid material used for 3D printing and having metal effect

A polylactic acid material and 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of polylactic acid consumables such as brittleness, single effect, and easy cracking, and achieve the effect of not easy to degrade, good metal effect, and prevent oxidation of polylactic acid

Active Publication Date: 2018-06-19
诺思贝瑞新材料科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the problems of the existing polylactic acid consumables that are relatively brittle, single effect, and easy to degrade, especially the technical problems of excessive embrittlement, easy cracking, and easy degradation after adding fillers, a kind of Modified polylactic acid material with metallic effect for 3D printing

Method used

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  • Modified polylactic acid material used for 3D printing and having metal effect
  • Modified polylactic acid material used for 3D printing and having metal effect

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Embodiment 1

[0034] This embodiment provides a modified polylactic acid material with metal effect for 3D printing, comprising the following components in parts by weight: 100 parts of polylactic acid, 100 parts of metal powder, 2 parts of metal pigment, 10 parts of toughening agent, coupling 0.5 part of lubricant, 0.5 part of lubricant, 0.3 part of hindered phenolic antioxidant, and 0.2 part of phosphite antioxidant; the polylactic acid is selected from the 4032D brand of natureworks company (as long as the polylactic acid is suitable for extruding polylactic acid grades can be applied to the present invention), the metal powder is 500 purpose granular copper powder, the metal pigment is 500 purpose scaly copper powder, and the toughening agent is methyl methacrylate-butadiene - Styrene core-shell copolymer, the coupling agent γ-(2,3-glycidoxy) propyl trimethoxysilane, the lubricant is ethylene bis stearic acid amide, the hindered phenols The antioxidant is β-(3,5-di-tert-butyl-4-hydroxyp...

Embodiment 2

[0043] This embodiment provides a modified polylactic acid material for 3D printing with a metallic effect, comprising the following components in parts by weight: 100 parts of polylactic acid, 120 parts of metal powder, 3 parts of metal pigment, 10 parts of toughening agent, coupling 0.8 part of lubricant, 0.5 part of lubricant, 0.3 part of hindered phenolic antioxidant, 0.2 part of phosphite antioxidant; the polylactic acid selects the 4043D brand of natureworks company, and the metal powder is 400 mesh granular bronze powder , the metal pigment is 500 mesh scaly bronze powder, the toughening agent is methyl methacrylate-butyl acrylate core-shell copolymer, and the coupling agent is tetraoctyloxytitanium [two (dilauryl Phosphite)], the lubricant is pentaerythritol stearate, and the hindered phenolic antioxidant is tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, and the phosphite antioxidant is bis(2,4-di-tert-butylphenol) pentaerythrito...

Embodiment 3

[0052] This embodiment provides a modified polylactic acid material with metal effect for 3D printing, which contains the following components in parts by weight: 100 parts of polylactic acid, 80 parts of metal powder, 5 parts of metal pigment, 8 parts of toughening agent, coupling 2 parts of lubricants, 1.5 parts of lubricants, 0.2 parts of hindered phenol antioxidants, and 0.4 parts of thioester antioxidants; the polylactic acid uses REVODE190 from Zhejiang Hisun Biomaterials Co., Ltd., and the metal powder is 800 Purpose granular aluminum powder, described metal pigment is 600 purpose scaly aluminum silver powders, and described toughening agent is organosilicon modified methyl methacrylate-butyl acrylate core-shell copolymer, and described coupling agent is tri( Dioctyl pyrophosphoryloxy) isopropyl titanate, the lubricant is a polyester hyperbranched resin, and the hindered phenolic antioxidant is 4,6-three (3,5-di-tert-butyl -4-hydroxybenzyl) benzene, the thioester antiox...

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Abstract

The invention relates to a modified polylactic acid material used for 3D printing and having a metal effect, wherein the modified polylactic acid material comprises, by weight, 100 parts of polylacticacid, 80-150 parts of metal powder, 1-5 parts of a metal pigment, 8-18 parts of a toughening agent, 0.5-2 parts of a coupling agent, 0.5-1.5 parts of a lubricant, 0.2-0.8 part of a hindered phenol antioxidant, and 0.1-0.5 part of a phosphite-based or thioester-based antioxidant, wherein the toughening agent is a soft core and hard shell type core-shell copolymer with a methyl methacrylate shell.According to the present invention, the modified polylactic acid material solves the problems of brittleness, single effect and easy degradation of the existing polylactic acid consumptive material, has advantages of good metal effect, good toughness and less degradation, and can provide excellent printing effect in 3D printing.

Description

technical field [0001] The invention relates to a modified polylactic acid material with metal effect for 3D printing, which belongs to the field of materials for 3D printing. Background technique [0002] 3D printing technology is profoundly changing the process of modern manufacturing. It does not require traditional tools, fixtures and machine tools, but is based on digital model files, using powdered metal or plastic and other bondable materials, through layer-by-layer printing. The technology of constructing objects by printing, which is used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and There are applications in other fields. [0003] Due to the good thermal fluidity, rapid cooling cohesion and high mechanical strength of polymer materials, it has been rapidly applied and developed in the field of...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L33/12C08K13/06C08K9/06C08K9/04C08K3/08C08K7/00C08K5/134C08K5/526C08K5/13C08K5/372B33Y70/00
CPCB33Y70/00C08K2003/0812C08K2003/085C08L67/04C08L2201/08C08L2205/18C08L2207/53C08L33/12C08K13/06C08K9/06C08K3/08C08K7/00C08K5/1345C08K5/526C08K9/04C08K5/13C08K5/372
Inventor 李振茅伟华熊文治
Owner 诺思贝瑞新材料科技(苏州)有限公司
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