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Biodegradable plastic line for three-dimensional (3D) printing

A 3D printing and biodegradable technology, applied in the field of biodegradable 3D printing plastic lines, to achieve the effect of beautiful appearance, good fluidity and dimensional stability, and bright color

Inactive Publication Date: 2014-05-21
芜湖瀚博电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a biodegradable plastic line for 3D printing that has no pollution to the environment and solves the environmental protection problem of 3D printing materials.
The plastic line has good fluidity, toughness and dimensional stability, which solves the defects of biodegradable materials in the application of 3D printing materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A plastic thread for biodegradable 3D printing, comprising the following components by weight: polylactic acid: 80.0 parts; impact modifier: 2.0 parts; plasticizer: 2.0 parts; auxiliary agent: 0.2 parts;

[0026] The impact modifier is one or more compounds of acrylic impact modifiers and thermoplastic elastomer impact modifiers;

[0027] The plasticizer is one or more compounds of phthalate plasticizers, citrate plasticizers, epoxy plasticizers and lactate plasticizers;

[0028] The auxiliary agent includes one or more mixtures of lubricant, antioxidant and chain extender.

[0029] The lubricant is one or more compounds selected from polyethylene wax, ethylene bisstearamide, zinc stearate, calcium stearate, and erucamide;

[0030] The antioxidant is one or more compounds of hindered phenols, phosphites, and calcium-zinc stabilizers;

[0031] The chain extender is one of a hydroxyl group-containing chain extender, an amino group-containing chain extender or an epoxy g...

Embodiment 2

[0033] A plastic thread for biodegradable 3D printing, comprising the following components by weight: polylactic acid: 86.9 parts; impact modifier UF100: 4.41 parts; plasticizer is ethyl lactate: 8.69 parts; auxiliary agent: 1.2 parts;

[0034] The auxiliary agent includes one or more mixtures of lubricant, antioxidant and chain extender.

[0035] The lubricant is one or more compounds selected from polyethylene wax, ethylene bisstearamide, zinc stearate, calcium stearate, and erucamide;

[0036] The antioxidant is one or more compounds of hindered phenols, phosphites, and calcium-zinc stabilizers;

[0037] The chain extender is one of a hydroxyl group-containing chain extender, an amino group-containing chain extender or an epoxy group-containing chain extender.

Embodiment 3

[0039] A plastic thread for biodegradable 3D printing, comprising the following components by weight: polylactic acid: 93.1 parts; impact modifier UF100: 2.7 parts; plasticizer is acetyl tributyl citrate: 2.7 parts; auxiliary agent: 2.0 copies;

[0040] The auxiliary agent includes one or more mixtures of lubricant, antioxidant and chain extender.

[0041] Described lubricant is ethylene bis stearic acid amide, and parts by weight are 0.9 part;

[0042] The antioxidant is pentaerythritol beta propionate: 0.1 parts by weight, triphosphite: 0.2 parts by weight;

[0043] The chain extender is chain extender CE: 0.3 parts by weight;

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PUM

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Abstract

The invention discloses a biodegradable plastic line for three-dimensional (3D) printing. The biodegradable plastic line comprises polylactic acid, impact modifier, plasticizer and an aid, wherein the impact modifier is compounded by one or more of acrylate impact modifiers and thermoplastic elastomer impact modifiers; the plasticizer is compounded by one or more of phthalic acid ester plasticizers, citrate plasticizers, epoxy plasticizers and lactate plasticizers; the aid comprises one or a mixture of more of a lubricating agent, an antioxidant and a chain extender. The material has high liquidity and dimensional stability, the requirements of a 3D printer on printing fluency and dimensional stability of the material are met, and the material is biodegradable, high in degradation rate, environmental friendly and pollution-free. Meanwhile, the material has a certain transparency, and the product printed by the 3D printer has semipermeability and is attractive in appearance and bright in color.

Description

technical field [0001] The invention relates to the field of 3D printers, in particular to a biodegradable plastic line for 3D printing. Background technique [0002] At present, there are no patents related to 3D printing polylactic acid plastic lines at home and abroad. What can be found are patents related to polylactic acid modification or alloying for foaming, injection molding or preparation of films and sheets. [0003] Patent 200710074505.2 discloses a biodegradable foamed plastic, which includes the following components and contents: 100 parts of polylactic acid resin; 10-20 parts of polylactic acid plasticizer; 10-50 parts of polyhydroxyalkanoate copolymer; 20-60 parts of starch; 8-17 parts of foaming agent; 2-4 parts of foaming aid; 0.8-1.2 parts of lubricant; 0.45-0.70 parts of anti-aging agent. The invention has the characteristics of low density, high specific strength, good shock absorption, and complete biodegradability. However, the invention is foamed pla...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08K5/12C08K5/11C08K5/098C08K5/20
Inventor 焦阳
Owner 芜湖瀚博电子科技有限公司
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