央广网北京2月10日消息（总台中国之声记者韩雪莹 江晓晨）据中央广播电视总台中国之声《新闻纵横》报道，提起3D打印技术，相信很多人都不陌 生。3D打印机已经进入寻常百姓家，以实实在在的金属、陶瓷、塑料、砂等不同原材料为"墨水"，在电脑控制下把这些打印材料层层叠加，最终将计算机 上的蓝图变成实物。 学期结束，实验不止。在北京交通大学Rheobot实验室，机械与电子控制工程学院副教授、90后青年科学家李振坤正和同学们一起，用一台桌面级4D打 印机探索流变机器人的更多可能性。精密的喷头遵循编程设定，向外喷射出灰褐色物质，几分钟内，一个简易的流变机器人打印完成。Rheobot团队成员、 北京交通大学硕士研究生徐海天拿起这块约两根手指大小的结构，验证其是否能按预期运动、变形。 徐海天介绍："它是一种非接触式的控制，很适合一些极端的环境，像对狭窄空间的探索、运动，再前沿一点的方向，它甚至可以到人体里面。" 虽有物理阻隔，靠徐海天依托磁场的"隔空"控制，这个流变机器人依然像翅膀一样伸展、折叠。全球第一款流变机器人就诞生在这个实验室。 Rheobot，正是"流变机器人"的英文，这一概念是2023年李振坤根据自主研发的磁控流变 ...

Core Insights - The market opportunity for smart materials is emerging, with predictions estimating a market size of $170 billion to $250 billion by 2030 [1][2]. Group 1: Smart Materials and Applications - Smart materials are seen as ideal execution carriers for embodied intelligence, enabling functionalities like flexible robotic hands that can reduce costs by over 60% compared to traditional motor-driven designs [1]. - The integration of AI in designing smart materials can shorten the development cycle by more than 30% through algorithmic optimization [1]. - In the biomedical field, 4D printed vascular stents can actively deform after implantation, allowing for non-contact driving and controlled degradation over 1-2 years [3]. Group 2: Industry Trends and Predictions - The global smart materials market is projected to reach $170 billion to $250 billion by 2030, with China leading in areas like shape memory polymers and flexible aerospace materials [2]. - China needs to enhance collaboration between academia and industry to improve the commercialization of smart materials, as evidenced by Japan's advancements in humidity-sensitive clothing and Germany's establishment of smart systems research institutes [2]. Group 3: Safety and Reliability in Energy Storage - Smart materials can significantly enhance the safety and reliability of battery management systems, particularly in electric vehicles, by enabling rapid disconnection in case of abnormal temperature increases [3].

Group 1 - The core event is the launch of the "Science and Technology Innovation Foundation · Science Popularization for the People" exhibition at the China Science and Technology Museum, showcasing innovative achievements from over 30 research teams [1] - The exhibition features nine initial exhibits, including wearable electronic fabrics, lunar life jars, gear structures, magnetic control 4D printing, and soft robots, covering four main areas: smart living, life survival, deep space exploration, and bionic robots [1][3] - The magnetic control 4D printing technology allows for the transformation of flat materials into dynamic structures, demonstrating a significant advancement in 3D printing by incorporating smart materials [3] Group 2 - The domestic first magnetic control 4D printing educational device was developed by a team led by a professor from Beijing Jiaotong University, making advanced printing processes accessible to the public [3] - The soft robotic hands created through 4D printing can adapt to grasp fragile and deformable objects, showcasing the potential for various applications in intelligent robotics and wearable rehabilitation devices [3]

Core Insights - The "2025 (Fourth) Polymer 3D Printing Materials Summit Forum" was successfully held on July 19 in Hangzhou, focusing on the research and application of polymer 3D printing materials [1] - The forum featured over 200 experts, scholars, and industry representatives, with more than 40 industry reports presented, addressing key challenges in the 3D printing industry [1] Session Summaries - The opening ceremony included a speech by Professor Xia Hesheng from Sichuan University, emphasizing the forum's goal to foster collaboration between industry, academia, and research [4][5] - Keynote speeches covered various advanced topics, including dynamic chemical light-curing 3D printing, continuous fiber composite laser additive manufacturing, and biological 3D printing [7] - Professor Xie Tao from Zhejiang University discussed advancements in large-scale additive manufacturing using light-curing resins derived from waste plastics [8] - Professor Yan Chunze from Huazhong University of Science and Technology presented on the latest developments in continuous fiber composite robotic laser additive manufacturing, enhancing the quality and mechanical properties of complex components [9] - The forum also highlighted challenges in orthodontic treatments, with a presentation by CTO Zhu Guang on the new ActiveMemory™ light-curing resin for 3D printed orthodontic appliances [11] - Professor He Yong from Zhejiang University discussed the applications of biological 3D printing in constructing pathological models and organ regeneration [16] - Professor Xia Hesheng introduced high-speed sintering technology, emphasizing its advantages in 3D printing and the development of new high-performance elastomer materials [18] Specialized Sessions - The forum included specialized sessions on artificial intelligence and 3D printing, featuring topics such as near-infrared light-assisted ink direct writing and micro-nano electronic additive manufacturing [20][23] - The ceramic 3D printing session covered advancements in additive manufacturing technologies and applications in precision manufacturing [38][41] - The biomedical 3D printing session focused on soft biological inks and the performance of biodegradable spinal fusion devices [47][48] - The industrial 3D printing session highlighted high-performance polymer materials and their applications in aerospace [54][56] Networking and Future Outlook - The evening banquet provided an opportunity for attendees to engage in discussions about the future of the 3D printing industry and collaboration opportunities [65] - The forum concluded with a call for continued knowledge sharing and collaboration in the field, looking forward to future gatherings [72]

Core Viewpoint - The article highlights the advancements and applications of multi-material 3D printing technology developed by Shenzhen MultiMatter Technology Co., Ltd., particularly focusing on the centrifugal DLP (Digital Light Processing) technology that allows for efficient material switching with minimal contamination, enabling a wide range of applications in fields such as communication and medicine [1][3][5]. Group 1: Company Overview - Shenzhen MultiMatter Technology Co., Ltd. specializes in multi-material light-curing 3D printing technology and equipment, leveraging core technologies from Southern University of Science and Technology for product development [5][6]. - The company has launched the MultiMatter series of multi-material light-curing 3D printers, including the C10, C30, and C50 series, designed for various applications [6][11][15][16]. Group 2: Technology and Innovations - The centrifugal DLP technology developed by the company addresses the challenge of removing residual liquid during material switching, utilizing centrifugal force for quick and contactless removal, which is less affected by the structure's size, shape, and resin viscosity [3][5]. - This technology allows for precise control over the composition, performance, and functionality of structures at the voxel level, overcoming compatibility limitations of traditional light-curing 3D printing [3][5]. Group 3: Applications and Materials - The technology supports a wide range of printable materials, including hard resins, elastomers, hydrogels, shape-memory polymers, and conductive elastomers, providing flexibility for various industries [5][6]. - The applications showcased include flexible electronics, robotics, implantable medical devices, and medical models, demonstrating the versatility of the multi-material 3D printing technology [1][5][27]. Group 4: Upcoming Events - The company will participate in the 2025 (4th) Polymer 3D Printing Materials Summit Forum from July 18-20 in Hangzhou, where it will showcase its multi-material 3D printing technology and applications [1][34]. - Professor Ge Qi, the company's chief scientist, will present a report titled "Multi-material 3D/4D Printing: From Hydrogels to Ceramics" at the forum, highlighting advancements in multi-material 4D printing [34][42].

Core Viewpoint - The article discusses advancements in 4D printing technology, particularly focusing on a new method for ceramic 4D printing driven by hydrogel dehydration, which allows for the creation of complex structures without the need for molds or external forces [2][3][4]. Group 1: 4D Printing Technology - 4D printing is a novel additive manufacturing technology that enables the creation of three-dimensional structures from smart materials, which can change shape over time when stimulated by external factors such as light, heat, or electricity [12]. - Current 4D printing materials are primarily limited to soft materials like hydrogels and shape memory polymers, with significant challenges remaining for hard materials like ceramics [2][3]. Group 2: Research and Development - A collaborative research team from Southern University of Science and Technology has developed a hydrogel-driven ceramic 4D printing method, utilizing light-sensitive ceramic elastomer slurries and acrylic hydrogel precursors suitable for DLP printing [3]. - The developed materials can undergo significant deformation, with the ceramic elastomer capable of withstanding up to 700% tensile strain and the hydrogel achieving a volume shrinkage of up to 65% during dehydration, along with a modulus increase of over 40 times [3]. Group 3: Upcoming Forum - Professor Ge Qi will present on "Multi-material 3D/4D Printing: From Hydrogels to Ceramics" at the 2025 (4th) Polymer 3D Printing Materials Summit Forum, scheduled for July 18-20, 2025, in Hangzhou, Zhejiang [5][8]. - The forum aims to facilitate discussions on high-precision 4D printing equipment, advancements in high-performance light-curing smart materials, and design methodologies for multi-material 4D printing [12].