Reprintable Polymers for Digital Light Processing 3D Printing

Reprintable Polymers for Digital Light Processing 3D Printing
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用于数字光处理 3D 打印的可重复打印聚合物

DOI:
10.1002/adfm.202007173
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发表时间:
2020-12
影响因子:
19
通讯作者:
Ning Zhao
Ning Zhao
中科院分区:
材料科学1区
文献类型:
--
作者:
Guangda Zhu;Yi Hou;Jian Xu;Ning Zhao

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3D打印正在成为一项颠覆性的技术,并在各种实际应用中显示出巨大的潜力。特别是数字光处理(DLP)3D打印,显示出高分辨率和高效率的优势。然而,在DLP印刷中大量生产不熔性和不溶性热固性树脂,造成严重的资源浪费和处置后的环境问题。在此,报告了一种可重复打印的线性聚合物,用于可重复的DLP打印。利用线性聚合物在其单体中的溶解,印刷品可以回收到液体树脂中,并通过相同的DLP重新印刷。再生树脂的聚合动力学和印刷分辨率以及再印聚合物的机械性能保持与原始树脂相同。线性聚合物的热塑性赋予3D对象焊接和重塑性能。还成功地制造了可回收的复合材料,实现了高价值填料的可持续使用。这一战略有助于解决不可加工热固性材料引起的环境问题,并可能有助于有效地回收材料。
3D printing is becoming a disruptive technology and shows great potential for various practical applications. Specially, digital light processing (DLP) 3D printing demonstrates advantages in high resolution and high efficiency. However, extensive production of infusible and insoluble thermosets in DLP printing causes serious resource waste and environmental problems after its disposal. Herein, a reprintable linear polymer is reported for repeatable DLP printing. Taking advantage of the dissolution of linear polymer in its monomer, printed objects can be recycled into liquid resin and reprinted via the same DLP. Polymerization kinetics and printing resolution of recycled resins and mechanical properties of reprinted polymers retain identical as the original. The thermoplastic nature of linear polymer endows 3D objects with welding and reshaping property. Recyclable composites are also successfully fabricated, and sustainable usage of high‐value fillers comes true. This strategy helps to address environmental issues arising from unprocessable thermosets and may contribute to an efficient materials recycling.
DOI: 10.1126/science.aar5498
发表时间: 2018-04-27
期刊: SCIENCE
影响因子: 56.9
作者:
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发表时间: 1978
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