4D打印陶瓷前驱体在个性化定制首饰中的应用初探

Preliminary Investigation on the Application of 4D Printed Ceramic Precursor in Customized Jewelry

  • 摘要: 近年来, 4D打印技术逐渐成为了增材制造领域的研究热点。该技术是在3D打印的基础上选用特殊的智能打印材料,使其在打印完成后仍能在物理性质上发生可预测的改变。采用新型弹性陶瓷前驱体材料作为4D打印的材料,通过打印性能测试确定了适宜的浆料浓度,利用浆料直写打印技术(Direct Ink Writing,DIW)打印了陶瓷前驱体材料模型,待其固化后,在热重实验的基础上以合适的温度进行烧结。对固化后和烧结后的样品进行了抗拉强度、显微形貌以及收缩率的分析,发现固化后的材料具备良好的柔韧性和可拉伸性,且结构细腻,烧结后收缩均匀,理论上能够进行精细结构的制作。所用智能材料在经3D打印固化后可以随意变换形态,突破了常用硬质材料的限制,使得成品可设计性更强,因此可应用于制作更加贴合人体的首饰。材料在后期烧结中会变为硬质,耐久度和美观度大大提升,是一种适宜首饰使用的材料,本实验为个性化定制首饰提供了更多的可能性。

     

    Abstract: Four-dimensional (4D) printing technology has gradually become a hotspot in the field of additive manufacturing research.This technology utilizes special intelligent printing material on the basis of 3D printing, so the physical properties could be changed in a predictable way even after printing. In this paper, a new type of elastic ceramic precursor material was used as the 4D printing material, and the suitable slurry concentration was determined by the printing performance test. The ceramic precursor material model was printed by Direct Ink Writing (DIW). After the curing, it was sintered at a suitable temperature on the basis of thermogravimetry. The tensile strength, micro-morphology and shrinkage of the cured and sintered samples were analyzed. It was found that the cured materials have good flexibility and stretchability, fine structure and uniform shrinkage after sintering, which can theoretically make a fine and smooth structure. The shape of the material can be changed after 3D printing and curing, which breaks through the limitation of commonly used solid materials and makes the finished product more designable, thus can be employed to make jewelry more suitable and wearable for human body. The material itself will become hard during sintering, and its durability and aesthetics will be greatly improved. It is a suitable material for jewelry and this experiment provide smore possibilities for customized jewelry.

     

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