3D Printing of a Dual-Curing Resin with Cationic Curable Vegetable Oil
3D Printing of a Dual-Curing Resin with Cationic Curable Vegetable Oil
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DOI：
10.1021/acs.iecr.0c01507
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发表时间：
2020-06-24
影响因子：
4.2
通讯作者：
Su, Jiahui
中科院分区：
文献类型：
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作者：
Cui, Yanyan;Yang, Junlai;Su, Jiahui
通过3D打印开发和制造具有适度伸长率和高机械强度的高性能可再生3D物体在向循环经济的持续过渡中非常可取。将聚氨酯环氧大豆油（SBO-URE）与丙烯酸酯复合以获得用于立体光刻3D打印的杂化树脂。通过实时红外光谱研究了该印刷配方的光引发过程。印刷后，该部件在高温下热固化以产生互穿网络（IPN）。通过一系列的试验，研究了后固化和SBO-URE含量对印刷品的影响。结果表明，SBO-URE的加入能在不严重影响伸长率的情况下提高材料的力学强度，表明IPN结构对材料的综合性能有一定的改善。此外，混合树脂可产生具有复杂微结构和优异表面处理的高分辨率原型，这表明可持续生物基树脂可应用于立体光刻3D打印。
The development and fabrication of high-performance renewable 3D objects with moderate elongation and high mechanical strength via 3D printing are highly desirable in the ongoing transition toward a circular economy. Her; urethane epoxidized soybean oil (SBO-URE) was compounded with acrylates to obtain hybrid resins for stereolithographic 3D printing. The photoinitiated process of the printing formulation was investigated by real-time FT-IR. After printing, the part was thermally cured at an elevated temperature to yield an interpenetrating network (IPN). The effects of postcuring and the SBO-URE content on the printed objects were investigated by a series of tests. The results showed that the addition of SBO-URE can increase mechanical strength without seriously sacrificing the elongation, revealing that the IPN structure offers certain improvement in the general properties. In addition, the hybrid resins lead to high-resolution prototypes with a complex microarchitecture and excellent surface finishing, indicating that sustainable bio-based resins can be applied in stereolithographic 3D printing.