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High-toughness matte modified polylactic acid material for 3D printing and preparation method of high-toughness matte modified polylactic acid material

A polylactic acid material, 3D printing technology, applied in additive processing and other directions, can solve the problems of poor toughness and high gloss, and achieve the effects of improving poor toughness, broadening application fields and excellent anti-aging properties.

Active Publication Date: 2019-04-05
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: to solve the technical problems of poor toughness and high gloss of existing 3D printed polylactic acid products, to provide a high toughness matt modified polylactic acid material for 3D printing and its preparation method

Method used

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  • High-toughness matte modified polylactic acid material for 3D printing and preparation method of high-toughness matte modified polylactic acid material

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Embodiment 1

[0035] The present embodiment provides a kind of modified polylactic acid material for 3D printing with high toughness and matt light, comprising the following components by weight:

[0036]100 parts of polylactic acid, 10 parts of main toughening agent, 8 parts of auxiliary toughening agent, 25 parts of calcium carbonate powder (2000 mesh), 5 parts of silica matting powder, 0.2 part of titanate coupling agent, antioxidant 0.3 part, light stabilizer 0.1 part, lubricant 0.3 part;

[0037] Described polylactic acid selects 3052D of natureworks, under the test condition that temperature is 210 ℃, load is 2.16kg, the melt mass flow rate of 3052D is 14g / 10min; The main toughening agent is methyl methacrylate-butadiene -Styrene core-shell copolymer, the auxiliary toughening agent is glycidyl methacrylate grafted ABS; the silica matting powder is Degussa silica matting powder OK412; the titanate coupling agent is tris(dioctyl) base pyrophosphoryloxy) isopropyl titanate; Lubricant se...

Embodiment 2

[0046] The present embodiment provides a kind of modified polylactic acid material for 3D printing with high toughness and matt light, comprising the following components by weight:

[0047] 100 parts of polylactic acid, 15 parts of main toughening agent, 8 parts of auxiliary toughening agent, 40 parts of barium sulfate powder (1250 mesh), 3 parts of silica matting powder, 0.5 part of titanate coupling agent, antioxidant 0.6 part, light stabilizer 0.6 part, lubricant 0.3 part;

[0048] The polylactic acid contains Trellis Bioplastics' Cereplast 4001 (70 parts) and 3260HP (30 parts), under the test conditions of temperature of 210℃ and load of 2.16kg, the melt mass flow rate of Cereplast Compostables 4001 is 3g / 10min, and the melt mass flow rate of 3260HP is 65g / 10min; the main toughening agent is methyl methacrylate-butadiene-styrene core-shell copolymer, the auxiliary toughening agent is ethylene-methyl acrylate-glycidyl methacrylate; the silica matting powder is selected ...

Embodiment 3

[0057] The present embodiment provides a kind of modified polylactic acid material for 3D printing with high toughness and matt light, comprising the following components by weight:

[0058] 100 parts of polylactic acid, 11 parts of main toughening agent, 5 parts of auxiliary toughening agent, 20 parts of barium sulfate powder (1250 mesh), 6 parts of silica matting powder, 0.4 part of titanate coupling agent, antioxidant 0.1 part, light stabilizer 0.6 part, lubricant 0.3 part;

[0059] The polylactic acid includes 4032D (50 parts) and 3251D (50 parts) of natureworks. Under the test conditions of temperature of 210° C. and load of 2.16kg, the melt mass flow rate of 4032D is 7g / 10min, and the melt of 3251D is 7g / 10min. The mass flow rate is 80g / 10min; the main toughening agent is methyl methacrylate-butyl acrylate core-shell copolymer, and the auxiliary toughening agent is maleic anhydride grafted POE; the silica matting powder is Tosoh II Silica matting powder E-1009; titanate...

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Abstract

The invention relates to a high-toughness matte modified polylactic acid material for 3D printing and a preparation method of the high-toughness matte modified polylactic acid material. The modified polylactic acid material is prepared from, by weight, 100 parts of polylactic acid, 10-15 parts of a main toughening agent, 5-8 parts of an auxiliary toughening agent, 20-40 parts of filler, 3-6 partsof silicon dioxide matting powder, 0.1-0.5 part of a titanate coupling agent, 0.1-0.6 part of an antioxidant, 0.1-0.6 part of a light stabilizer and 0.2-0.5 part of a lubricant, wherein the main toughening agent is a soft-core hard-shell type core-shell copolymer with methyl methacrylate as a shell, the auxiliary toughening agent refers to an elastomer toughening agent containing anhydride or epoxy group, and the filler refers to barium sulfate powder or calcium carbonate powder. The high-toughness matte modified polylactic acid material for 3D printing is excellent in toughness, remarkable inaging resistance and great in matte surface effect.

Description

technical field [0001] The invention relates to a high-toughness matt modified polylactic acid material for 3D printing and a preparation method thereof, belonging to the technical field of materials for 3D printing. Background technique [0002] 3D printing technology is a technology that does not require traditional tools, fixtures and machine tools, but builds objects by layer-by-layer printing based on digital model files, using bondable materials such as powdered metal or plastic. It has applications in civil engineering, jewelry, footwear, automotive, aerospace, medical and other fields. [0003] Polymer materials have good thermal fluidity, rapid cooling adhesion, and high mechanical strength, and have been rapidly applied and developed in the field of 3D printing manufacturing, especially polylactic acid (PLA) as a green and biodegradable new The material has a particularly excellent 3D printing effect - high adhesion between layers, not easy to warp and deform, and...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L51/04C08L51/00C08L55/02C08L23/08C08L51/06C08K9/04C08K3/26C08K3/36C08K3/30B33Y70/00
CPCB33Y70/00C08K2003/265C08K2003/3045C08L67/04C08L2205/03C08L2207/53C08L51/04C08L55/02C08K9/04C08K3/26C08K3/36C08L23/0884C08K3/30C08L51/003C08L51/06
Inventor 李振
Owner 诺思贝瑞新材料科技(苏州)有限公司
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