Title:
BIO-BASED UV-CURABLE 3D PRINTING RESIN AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/217962
Kind Code:
A1
Abstract:
A bio-based UV-curable 3D printing resin and a preparation method therefor. The component composition of the resin in percentage by weight comprises 19-78% of a biodegradable starch resin polymer, 1-9% of a free radical initiator, 0.2-4% of an auxiliary agent, 13-62% of a reactive diluent, and 2-8% of hydroxyethyl starch. The above components are mixed according to proportions. After 10-20 minutes of ultrasonic cleaning with an ultrasonic cleaner at a water temperature of 50°C, the mixture is placed in a homogenizer and evenly stirred, so as to obtain the bio-based UV-curable 3D printing resin. The resin and the preparation method therefor use renewable resources, reduce environmental pollution and energy consumption, and have biological safety. The hydroxyethyl starch has a polymer compound formed by hydroxyethylation of glucose rings of amylose to increase the polymerization speed, increase the conversion rate of resin molding, and reduce the ratio of a photoinitiator to monomer chemical substances. The 3D printing resin has excellent properties and a low skin irritation value.
Inventors:
HONG YINGSHENG (CN)
Application Number:
PCT/CN2020/110123
Publication Date:
November 04, 2021
Filing Date:
August 20, 2020
Export Citation:
Assignee:
SHENZHEN ELEGOO TECH CO LTD (CN)
International Classes:
C08L51/02; B33Y70/10; C08F251/00; C08F283/06; C08L3/02; C08L51/08
Domestic Patent References:
| WO1997010292A1 | 1997-03-20 |
Foreign References:
| CN111471261A | 2020-07-31 | |||
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| US7071249B2 | 2006-07-04 | |||
| JP2001026668A | 2001-01-30 | |||
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| JPH11209514A | 1999-08-03 | |||
| CN106039414A | 2016-10-26 | |||
| CN107353550A | 2017-11-17 | |||
| CN108409921A | 2018-08-17 |
Attorney, Agent or Firm:
SHENZHEN LOTUT PATENT AGENCY COMPANY LIMITED (CN)
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