CONTINUOUS STEREOLITHOGRAPHY 3D PRINTING OF MULTI-NETWORK HYDROGELS IN TRIPLY PERIODIC MINIMAL STRUCTURES (TPMS) WITH TUNABLE MECHANICAL STRENGTH FOR ENERGY ABSORPTION

IF 2.4 3区工程技术 Q3 ENGINEERING, MANUFACTURING

Journal of Manufacturing Science and Engineering-transactions of The Asme Pub Date : 2023-11-13 DOI:10.1115/1.4063905

Zipeng Guo, Ruizhe Yang, Jun Liu, Jason Armstrong, Ruogang Zhao, chi zhou

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引用次数: 0

Abstract

Abstract This work presents a fast additive manufacturing (AM) protocol for fabricating multi-network hydrogels. A gas-permeable PDMS (polydimethylsiloxane) film creates a polymerization-inhibition zone, enabling continuous stereolithography (SLA) 3D printing of hydrogels. The fabricated multi-bonding network integrates rigid covalent bonding and tough ionic bonding, allowing effective tuning of elastic modulus and strength for various loading conditions. The 3D-printed triply periodic minimal structures (TPMS) hydrogels exhibit high compressibility with up to 80% recoverable strain. Additionally, dried TPMS hydrogels display novel energy/impact absorption properties. By comparing uniform and gradient TPMS hydrogels, we analyze their energy/impact absorption capability of the 3D-printed specimens. We use finite element analysis (FEA) simulation studies to reveal the anisotropy and quasi-isotropy behavior of the TPMS structures, providing insights for designing and controlling TPMS structures for energy absorption. Our findings suggest that gradient TPMS hydrogels are preferable energy absorbers with potential applications in impact resistance and absorption.

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具有可调机械强度以吸收能量的三周期最小结构(tpms)的多网络水凝胶连续立体光刻3d打印

摘要:本文提出了一种用于制造多网络水凝胶的快速增材制造(AM)协议。透气性PDMS(聚二甲基硅氧烷)薄膜可形成聚合抑制区，实现水凝胶的连续立体光刻(SLA) 3D打印。所制备的多键网络集成了刚性共价键和刚性离子键，可以有效地调整弹性模量和强度，以适应各种负载条件。3d打印的三周期最小结构(TPMS)水凝胶具有高达80%可恢复应变的高压缩性。此外，干燥的TPMS水凝胶显示出新的能量/冲击吸收性能。通过对比均匀型和梯度型TPMS水凝胶，分析了3d打印样品的能量/冲击吸收能力。利用有限元分析(FEA)模拟研究揭示了TPMS结构的各向异性和准各向同性行为，为设计和控制TPMS结构的能量吸收提供了见解。研究结果表明，梯度TPMS水凝胶是较好的吸能材料，在抗冲击和吸收方面具有潜在的应用前景。

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来源期刊

Journal of Manufacturing Science and Engineering-transactions of The Asme 工程技术-工程：机械

CiteScore

6.80

自引率

20.00%

发文量

126

审稿时长

12 months

期刊介绍： Areas of interest including, but not limited to: Additive manufacturing; Advanced materials and processing; Assembly; Biomedical manufacturing; Bulk deformation processes (e.g., extrusion, forging, wire drawing, etc.); CAD/CAM/CAE; Computer-integrated manufacturing; Control and automation; Cyber-physical systems in manufacturing; Data science-enhanced manufacturing; Design for manufacturing; Electrical and electrochemical machining; Grinding and abrasive processes; Injection molding and other polymer fabrication processes; Inspection and quality control; Laser processes; Machine tool dynamics; Machining processes; Materials handling; Metrology; Micro- and nano-machining and processing; Modeling and simulation; Nontraditional manufacturing processes; Plant engineering and maintenance; Powder processing; Precision and ultra-precision machining; Process engineering; Process planning; Production systems optimization; Rapid prototyping and solid freeform fabrication; Robotics and flexible tooling; Sensing, monitoring, and diagnostics; Sheet and tube metal forming; Sustainable manufacturing; Tribology in manufacturing; Welding and joining