High performance and multi-UV curable materials adaptable photothermal nanoparticles for near-infrared-responsive digital light processing based 4D printing

IF 8.3 1区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Science and Technology Pub Date : 2024-11-22 DOI:10.1016/j.compscitech.2024.110984

Shiwei Feng, Jingjing Cui, Yunlong Guo, Weizi Gao, Yongding Sun, Chen Liang, Zhe Lu, Biao Zhang

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Abstract

Integration of functional nanomaterials into 3D printing polymers expands the versatility of 4D printing. However, high performance and multi-UV curable materials adaptable nanoparticles for 4D printing are still urgently needed to avoid printing complications and deformation limitations caused by high filler loadings. Here, high performance oxygen-deficient tungsten oxide nanoparticles (WO_3-x NPs) are synthesized via a straightforward hydrothermal method, and the resulting nanoparticles (NPs) exhibit excellent photothermal property which can rapidly increase from room temperature to 562.6 °C in less than 2 s via near-infrared (NIR) light irradiation. Moreover, these NPs can also be well dispersed in a wide range of photocurable polymers, such as UV curable hydrogel, shape memory polymer, and dual-curing polymer, forming variety of nanocomposite systems. The formed nanocomposite systems can be manufactured into complex 3D structures via digital light processing based 4D printing. Just trace WO_3-x NPs in nanocomposite systems (<2 wt‰) can help realize the controllable photothermal properties of the printed structures, which are capable of arbitrary spatial deformation, remote-controlled distortion, and on-demand reinforcement in response to NIR irradiation, presenting a succinct and impactful approach to broadening the application scope of light-controlled DLP-based 4D printing.

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用于基于近红外响应式数字光处理的 4D 打印的高性能和多紫外固化材料适应性光热纳米粒子

将功能性纳米材料集成到三维打印聚合物中拓展了四维打印的多功能性。然而，为避免高填料负载造成的打印复杂性和变形限制，仍迫切需要适用于 4D 打印的高性能和多紫外固化材料纳米粒子。本文通过直接的水热法合成了高性能缺氧氧化钨纳米粒子（WO3-x NPs），所得到的纳米粒子（NPs）具有优异的光热性能，通过近红外（NIR）光照射，可在不到 2 秒的时间内从室温迅速升高到 562.6 ℃。此外，这些 NPs 还可以很好地分散在多种光固化聚合物中，如紫外光固化水凝胶、形状记忆聚合物和双固化聚合物，从而形成各种纳米复合体系。形成的纳米复合材料体系可通过基于数字光处理的 4D 打印技术制造成复杂的三维结构。纳米复合材料体系中的微量 WO3-x NPs（2 wt‰）就能帮助实现打印结构的可控光热特性，在近红外照射下，打印结构能够任意空间变形、遥控扭曲和按需加固，为拓宽基于光控 DLP 的 4D 打印的应用范围提供了一种简洁而有影响力的方法。

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来源期刊

Composites Science and Technology 工程技术-材料科学：复合

CiteScore

16.20

自引率

9.90%

发文量

611

审稿时长

33 days

期刊介绍： Composites Science and Technology publishes refereed original articles on the fundamental and applied science of engineering composites. The focus of this journal is on polymeric matrix composites with reinforcements/fillers ranging from nano- to macro-scale. CSTE encourages manuscripts reporting unique, innovative contributions to the physics, chemistry, materials science and applied mechanics aspects of advanced composites. Besides traditional fiber reinforced composites, novel composites with significant potential for engineering applications are encouraged.