3D printing polylactic resin material and preparation method thereof

A polylactic acid resin, 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of soft products, unfavorable families, insufficient support, etc.

Inactive Publication Date: 2020-08-04
ZHEJIANG HISUN BIOMATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the printing temperature of PLA is 180-200°C, and the printing temperature is too high, which is not conducive to families, especially children, for creative printing
The existing low-temperature 3D printing pens on the market mainly use modified PCL, but modified PCL materials are prone to problems such as unstable drawing, low efficiency, soft printed products, and insufficient support when printing at low temperatures.
In addition, the price of PCL polymeric raw materials is relatively high, and the PCL materials currently on the market for 3D printing are expensive

Method used

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  • 3D printing polylactic resin material and preparation method thereof
  • 3D printing polylactic resin material and preparation method thereof
  • 3D printing polylactic resin material and preparation method thereof

Examples

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preparation example Construction

[0071] The preparation method of polylactic acid-b-polyethylene glycol block copolymer of the present invention can comprise the following steps:

[0072] (1) Lactide, polyethylene glycol or polyethylene glycol methyl ether, catalyst are mixed in the first solvent, in protective gas such as N 2 heating and stirring under the protection;

[0073] (2) The product of step (1) is extracted and dried.

[0074] In one embodiment, the lactide in step (1) can use L-lactide, D-lactide or a combination thereof.

[0075] In another embodiment, the catalyst in step (1) is an organotin catalyst, preferably organotin octoate, dibutyltin dilaurate, stannous octoate, dibutyltin di(dodecylsulfide), chloride Stannous, alkyl tin dithiolate, or combinations thereof.

[0076] In yet another embodiment, the number average molecular weight of polyethylene glycol in step (1) is about 0.2-100,000, preferably about 0.2-30,000, such as about 2,000, about 5,000, about 8,000, about 10,000 , about 13,0...

Embodiment

[0147] The solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

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Abstract

The invention relates to a 3D printing polylactic resin material, and is characterized in that the 3D printing polylactic resin material comprises (A) about 40 to 75 parts of polylactic acid-b-polyethylene glycol segmented copolymer, (B) about 15 to 40 parts of bio-based flexibilizer, (C) about 5 to 25 parts of inorganic powder, (D) about 1 to 10 parts of an external lubricant and (E) about 0.1 to5 parts of a surfactant. The invention also relates to a preparation method and an application of the 3D printing polylactic resin material. The invention also relates to application of the polylactic acid-b-polyethylene glycol segmented copolymer in preparation of a polylactic acid resin material for 3D printing.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a 3D printing polylactic acid resin material and a preparation method thereof, as well as its use in the field of fused deposition (FDM) printing. Background technique [0002] With the technological innovation in the market, 3D printing technology has gradually increased its influence in industrial manufacturing and processing, education, and art display methods, showing a momentum of rapid development. At present, 3D printing has become a necessary procedure for product development such as automobile body design, home appliance light industrial products, architectural design, and mold design. 3D printing can effectively shorten the design development cycle and reduce development costs, which is of great significance to the development, trial production and production of new products. At present, 3D printing technologies mainly include layered solid modeli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L67/02C08L67/04C08L83/04C08K5/098C08K3/34C08K5/10C08K3/26C08K5/20C08K7/20B33Y70/10C08G63/664
CPCC08L67/00B33Y70/10C08G63/664C08L2205/02C08L2205/03C08L2205/06C08L2201/06C08K2003/265C08L67/02C08K5/098C08K3/34C08K5/10C08L67/04C08L83/04C08K3/26C08K5/20C08K7/20
Inventor 汪伦合罗狄梁伟朱荣华林跃王建宇
Owner ZHEJIANG HISUN BIOMATERIALS
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