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Bio-based 3D printing resin and preparation method thereof

A 3D printing, bio-based technology, applied in the direction of additive processing, can solve the problems of increasing energy consumption and threatening human health, and achieve the effect of overcoming low curing depth, conducive to sustainable development, and excellent thermal and mechanical properties

Active Publication Date: 2021-11-02
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, this technology inevitably uses toxic methylene chloride as a solvent in the synthetic route, which will increase energy consumption and threaten human health; on the other hand, biomass with aromatic or alicyclic structures is usually selected Raw materials for high performance resins

Method used

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  • Bio-based 3D printing resin and preparation method thereof
  • Bio-based 3D printing resin and preparation method thereof
  • Bio-based 3D printing resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1) Preparation of bis(2-hydroxyl-3-(methacryloyloxy)propyl) succinate

[0047] 47.2g of succinic acid, 113.7g of glycidyl methacrylate, 1.6g of triphenylphosphine and 0.32g of 4-methoxyphenol were added into the flask, and then the reaction mixture was heated slowly and stirred at 100°C for 5h. Finally, a light yellow liquid was obtained, which was bis(2-hydroxy-3-(methacryloyloxy)propyl)succinate. The viscosity at 50°C is 0.42Pa·s.

[0048] 2) Preparation of 3D printing resin

[0049] Bis(2-hydroxy-3-(methacryloyloxy)propyl)succinate (100g), phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (1g), Stir at 70°C for 20 minutes to mix evenly to obtain a clear liquid, and put the obtained liquid into a 405nm digital light processing (DLP) 3D printer for 3D printing and molding. Put the printed 3D printed structure into a UV curing box to cure for 5 minutes.

[0050] In this example, the synthetic reaction formula, H NMR spectrum and high-resolution mass spectrum of bis(2...

Embodiment 2

[0057] 1) Preparation of bis(2-hydroxyl-3-(methacryloyloxy)propyl) 2-methylene succinate

[0058] 52.0 g of itaconic acid, 113.7 g of glycidyl methacrylate, 1.66 g of triphenylphosphine and 0.33 g of 4-methoxyphenol were added to the flask, and then the reaction mixture was heated slowly and stirred at 100° C. for 5 h. Finally, a pale yellow liquid was obtained, which was bis(2-hydroxy-3-(methacryloyloxy)propyl) 2-methylene succinate. The viscosity at 50°C is 0.69Pa·s.

[0059] 2) Preparation of 3D printing resin

[0060] Oxidation of bis(2-hydroxy-3-(methacryloyloxy)propyl) 2-methylene succinate (100 g), phenylbis(2,4,6-trimethylbenzoyl) Phosphine (1g), stirred at 70°C for 20 minutes and mixed evenly to obtain a clear liquid, which was put into a 405nm digital light processing (DLP) 3D printer for 3D printing. Put the printed 3D printed structure into a UV curing box and cure for 5 minutes.

[0061] In this example, the synthetic reaction formula, H NMR spectrum and high-...

Embodiment 3

[0071] 1) Preparation of bis(2-hydroxyl-3-(methacryloyloxy)propyl) succinate

[0072] 47.2g of succinic acid, 113.7g of glycidyl methacrylate, 0.8g of triphenylphosphine and 0.16g of 4-methoxyphenol were added into the flask, and then the reaction mixture was heated slowly and stirred at 120°C for 6h. Finally, a light yellow liquid was obtained, which was bis(2-hydroxy-3-(methacryloyloxy)propyl)succinate. The viscosity at 50°C is 0.43Pa·s.

[0073] 2) Preparation of 3D printing resin

[0074] Bis(2-hydroxy-3-(methacryloyloxy)propyl)succinate (100g), phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (5g), Stir at 50°C for 20 minutes to mix evenly to obtain a clear liquid, and put the obtained liquid into a 405nm digital light processing (DLP) 3D printer for 3D printing. Put the printed 3D printed structure into a UV curing box and cure for 5 minutes.

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Abstract

The invention relates to a bio-based 3D printing resin and a preparation method thereof. The preparation method of the bio-based 3D printing resin comprises the following steps: (1) synthesizing a bio-based acrylate monomer by using biomass and bio-based glycidyl methacrylate as raw materials; and (2) mixing the bio-based acrylate monomer and a photoinitiator, and carrying out photocuring 3D printing to obtain the bio-based 3D printing resin. According to the bio-based 3D printing resin prepared by the method, the preparation method is green, the preparation process is simple, industrial production is easy, the obtained resin has excellent comprehensive performance and can be directly applied to 3D printing, and the method for preparing the high-performance 3D printing resin from the aliphatic biomass is created.

Description

technical field [0001] The invention relates to a bio-based 3D printing resin and a preparation method thereof, belonging to the technical field of chemical engineering and polymer materials. Background technique [0002] Biomass is renewable, environmentally friendly, rich in resources and widely distributed, and is a sustainable renewable raw material for the preparation of polymers. Different biomasses have a variety of different reactive groups and chemical structures, so they have the potential to produce polymers with different properties and applications. With the development of biorefinery technology, more and more high-quality, low-cost biomass has been widely used in the preparation of polymers, such as biocomposites, epoxy resins, benzoxazines, polyimines, etc. In order to utilize biomass in a more sustainable manner, new processing methods need to be introduced. [0003] 3D printing, also known as additive manufacturing, is a rapid prototyping technique. It co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F122/20C08F2/48B33Y70/00
CPCC08F2/48B33Y70/00
Inventor 缪佳涛吴立新葛美颖彭枢强郑龙辉
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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