Preparation of Recyclable and High-performance 3D Printing Resins

被引：0
|
作者：
Zhang Y. [1 ]
Huang Z. [1 ]
Wang H. [1 ]
Yang S. [1 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing
来源：
Gaodianya Jishu/High Voltage Engineering | 2023年 / 49卷 / 03期
基金：
中国国家自然科学基金;
关键词：
3D printing; dual-curing resin; high performance; recovery; transesterification;
D O I：
10.13336/j.1003-6520.hve.20221057
中图分类号：
学科分类号：
摘要：
The new power system is developing towards green power and intelligent power. Preparing electrical materials by the 3D printing technology has become the future development direction. The current 3D printing ultraviolet-cured resins have poor mechanical properties and are not recyclable. In this study, the composite of epoxy resin, polysulfide rubber and soybean-oil-based acrylates is prepared by the dual curing process to achieve high performance and recovery of 3D printing.The raw material of 3D printing dual-curing resin has moderate viscosity and fast photocuring rate. Research shows that the new resin has the tensile strength of 83 MPa and flexural strength of 129 MPa, which are much greater than those of the current 3D printing ultraviolet-cured resin. Moreover,1,5,7-triazabicyclo [4.4.0] dec-5-ene is added to the polymer to enable trans-esterification in the network, and the break and recombination of disulfide bonds at high temperature cooperatively promotes the trans-esterification reaction. The new resin can be degraded in solvent with a recovery rate of 98%, and the recycling process does not produce wastes. © 2023 Science Press. All rights reserved.
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页码：962 / 970
页数：8
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