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近日,武汉纺织大学与东莞智维立体成型股份有限公司联合成立的武汉纺织大学3D 打印材料研究所在武汉正式挂牌。该所计划对已研制成功的可供3D 打印的光固化树脂、光固化蜡材料进行市场化开发,助推我国3D 打印技术在手工制模、人像打印等商用领域的普及。 相似文献
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与传统制备技术相比,3D打印技术在材料制备方面具有低成本、精度高和结构可控等优势,这使得3D打印技术在催化领域受到了广泛的关注。本文介绍了催化材料3D打印技术的最新进展,包括熔融沉积、光固化技术、直接墨水书写和选择性激光烧结技术。并对基于3D打印的聚合物、碳基材料、金属及氧化物基等材料在催化领域的应用进行了综述。文中指出,3D打印技术为催化剂的制备提供了一种新的途径,但在催化剂制备和应用方面仍存在打印速度慢、材料物理化学性质不稳定和使用范围受限等不足。本文提出了在材料种类拓展、催化剂结构优化、新型打印机与表面涂层技术研发等方面的未来发展方向。 相似文献
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目前,3D打印已应用于各行业中,打印材料的选择成为制约3D打印技术进一步发展的关键因素。光固化3D打印技术由于打印速度快、成品精度高、对环境无污染等优点被广泛应用,而光敏树脂作为光固化3D打印的主要材料对打印系统的性能起关键作用。本文简单介绍了3D打印光敏树脂的成分,对3D打印光敏树脂的3种类型进行了说明,并对3D打印光敏树脂复合/改性材料的研究进行了阐述。展望指出研究出性能好的3D打印光敏树脂复合/改性材料是3D打印技术不断满足各行各业多元化发展需求的重点课题。 相似文献
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3D打印技术因其操作简单便捷、成型快速灵活、可制备复杂结构的器件等优点,在精密陶瓷零件制造方面具有广泛应用。本文根据3D打印陶瓷的材料形态综述不同3D打印技术在陶瓷制备方面的特点,重点介绍了陶瓷3D打印成型技术中直写式3D打印、光固化3D打印、喷墨3D打印等技术所涉及的粘结剂、分散剂等组分的应用及作用机理,并对水基和非水基两种类型的添加剂组分进行总结和探讨,以期为3D打印技术制备高性能陶瓷样件提供参考。 相似文献
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与传统的涂覆、沉积等加工手段相比,使用3D打印技术可制造复杂立体功能结构的传感器,将3D打印与柔性传感技术结合可以促进未来生物医疗、人工智能等领域的发展。本文介绍了国内外基于3D打印技术制造柔性传感器的最新进展,其中包括聚酰亚胺等多种基底材料、纳米金属等多种打印传感材料;按照熔融沉积、黏弹性墨水沉积、粉末烧结熔化、还原光聚合和材料喷射的制造原理分别阐述了多种传感器的材料选择、成型特点,并对制造方法进行总结分析。虽然3D打印制造柔性传感器件存在着缺乏行业标准及多种类打印材料等问题,但经过不断创新与发展,3D打印将成为柔性传感领域极佳的制造手段。 相似文献
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Gregory Ellson Xavier Carrier Jamie Walton Samsuddin Faisal Mahmood Kejia Yang Joshua Salazar Walter E. Voit 《应用聚合物科学杂志》2018,135(6)
Fused filament fabrication (FFF) is the most common form of additive manufacturing. Most FFF materials are variants of commercially available engineering plastics. Their performance when printed can widely vary, thus there is an increasing volume of research on alternative materials with thermal and mechanical performance optimized for FFF. In this work, thiol–isocyanate polymerization is used for the development of a one‐pot synthesis for polythiourethane thermoplastics for tough three‐dimensional (3D) printing applications. The thiol–isocyanate reaction mechanism allows for rapid polymer synthesis with minimal byproduct formation and few limitations on reaction conditions. The resulting elastomer has high toughness and a low melting point, making it favorable for use as a 3D printing filament. The elastomer outperforms commercial filaments in tension when printed. Considering the rapid advancement of additive manufacturing and the limitations of many engineering polymers with the 3D printing process, these results are encouraging for the development of bespoke 3D printing thermoplastics. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 45574. 相似文献
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Three-dimensional (3D) printed bionic products play an important role in intelligent robotics, microelectronics, and polymers. The printing and manufacturing process of 3D printers is conducive to obtaining soft structures that meet specific requirements, and saves time and cost. Soft intelligent robotics, an emerging research field, has always been developed based on soft materials and actuators with their biological properties. This article reviews the current understanding of 3D bioprinting technologies for dielectric elastomers (DEs), DE actuators (DEAs) and soft robots, such as inkjet, extrusion, laser-induced and stereolithography bioprinting. 3D printers for fabricating soft materials are presented and classified. The approaches to exploit 3D bioprinters for DEs/DEAs are as follows: (1) 3D printing DEAs utilize ionic hydrogel–elastomer hybrids that are analogous to human muscles, and the DEAs usually have flexible structures and large deformations with multiple functionalities. (2) An electrohydrodynamic (EHD) 3D printer confers high printing resolution and high production efficiency, which offers advantages such as full automation and flexible design. The optimal printing conditions are mainly determined by the effects of printing voltages and ink properties, which are related to the formation of the liquid cone and the printed line width. Furthermore, the advantages of 3D bioprinting technologies have accelerated their development and applications. 相似文献
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高性能陶瓷是现代技术发展和应用不可或缺的关键材料。常规的陶瓷制造技术难以满足对个性化、精细化、轻量化和复杂化的高端产品快速制造的需求。新兴的增材制造技术(3D打印)在高性能陶瓷的成型制造领域具有巨大的发展潜力,有望突破传统陶瓷加工和生产的技术瓶颈,为陶瓷关键零部件的应用开辟新的途径。本文针对陶瓷材料及其快速成型和后处理工艺,重点阐述了三维打印技术、光固化成型技术、选择性激光烧结技术等主流陶瓷增材制造技术的研究现状,并指出了目前存在的问题及发展趋势。 相似文献
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混凝土3D打印是现代数字化制造的典型代表,因其智能化、个性化、绿色建造的工艺优势受到广泛关注。作为一种新型建造方式,3D打印为建筑业带来了颠覆性的影响,并对传统混凝土材料提出了全新的挑战。如何提升混凝土材料与3D打印技术的适应性,实现3D打印技术在建筑中的广泛应用是人们普遍关注的焦点。本文概述了混凝土3D打印技术的发展历程,系统论述了混凝土3D打印材料在流变性、可挤出性、可建造性以及力学性能方面的研究现状,同时,介绍了3D打印模板技术在装饰及异型构筑物上的典型应用,以期为混凝土3D打印的研究与未来工程发展提供一定的参考与借鉴。 相似文献
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3D打印技术具有数字化、自动化、快速高效、无模、节省材料等特点,是一种低能耗、低排放的制造技术,也是制造业升级改革的关键技术。3D打印技术在传统建筑领域具有广阔的应用前景,能够极大缩短工程建设周期、提升建筑结构可设计性,它还是一种极端环境下极具潜力的施工技术。因此,3D打印建筑技术不仅受到科研工作者的青睐,更是得到国家的大力支持。本文系统评述了国内外基于水泥基材料的3D打印建筑技术的研究进展:首先介绍了基于水泥基材料的3D打印建筑技术的起源、发展及应用;然后从可打印性能、力学性能及耐久性能三个方面对3D打印水泥基材料研究进展进行了介绍;最后提出了关于3D打印建筑技术的思考与建议,并对其发展方向进行了展望。 相似文献
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刘春 《现代塑料加工应用》2020,(1):57-60
综述了一般3D打印技术的概念、产业及其发展。重点介绍了高聚物在3D打印材料中的应用。持续跟踪结果表明:一批新型高聚物的3D打印材料推向市场,一批国际知名化工公司也在积极介入3D打印业务。 相似文献
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The application and development of 3D printing technology are greatly restricted due to the poor performance and single-function of the manufactured products. Therefore, it is still an important topic to develop 3D printing products with excellent performance and multi-functions. In this study, a novel graphite-filled polypropylene/polyamide 6 composite was successfully prepared using fused deposition modeling (FDM, one of the most popular 3D printing technologies). The effects of graphite on printing quality, melt-crystallization behavior and thermal stability of the composites were studied. In addition, the influence of different printing arrangements on the electrical conductivity and mechanical properties of the composite were also studied, and the existing performance regulation mechanisms were deeply explored through the microscopic morphology characterization (graphite sheet orientation and void distribution) and force analysis. This work demonstrates that components with specific performance requirements can be tuned and manufactured using FDM, which further expands the application and development of 3D printing technology in the field of functional composite materials. 相似文献