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Solid-liquid phase change materials microcapsules: Synthesis strategies,thermal storage and beyond

Progress in Natural Science:Materials International 2024年第4期34卷 615-631页

作者： Yan Gao Huan Liu Haoguan Gui Chao Yao Guolin Zhang Fuxin Liang Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical Engineering Changzhou University Department of Chemical Engineering Tsinghua University Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials Liaoning University

Thermal energy storage is crucial in the context of achieving carbon neutrality. Phase change latent heat stands out among various thermal storage methods due to the high energy density of phase change materials(PCMs).PCMs possess unique characteristics such as tunable thermal storage or/and release processes, constant phasetransition temperatures, and changes in physical state. However, solid-liquid PCMs cannot be directly utilized due to the liquid leakage in their melted state. The encapsulation of PCM microcapsules(PCMMs) is essential for overcoming limitations and optimizing functionalities of the PCMs. Encapsulation strategies play a key role in considering factors like morphology, structure, physicochemical properties, and specific applications. Furthermore, PCMMs can expand their potential applications by incorporating functional nano-materials within their shells or introducing specific components into their cores during the synthesis process. This review examines various encapsulation strategies for PCMMs, including physical, physicochemical, and chemical methods. Various applications of PCMMs are summarized and analyzed with regards to the characteristics of PCMs in thermal storage, temperature control, and state transformation. Furthermore, the reinforcement strategies or/and design considerations of PCMMs are crucial for meeting specific requirements, such as conventional latent heat storage,thermal protection, and thermal-triggered intelligent materials. Finally, it discusses current challenges, proposed solutions, and future research directions in the field of PCMMs, particularly Janus particle modified PCMMs.

关键词： Phase change materials Microcapsule Controllable synthesis Programmable mechanical behavior Controlled payload release

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Perspective on the development and application of ionic polymer metal composites: from actuators to multifunctional sensors

RSC Applied Polymers

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RSC Applied Polymers 2024年第5期2卷 795-804页

作者： Tang, Gangqiang Zhao, Xin Mei, Dong Zhao, Chun Wang, Yanjie Jiangsu Provincial Key Laboratory of Special Robot Technology Hohai University Changzhou campus Changzhou 213022 China

Ionic polymer metal composites (IPMCs) are a versatile class of ionic polymer-based transducers with excellent electromechanical properties and wide application potential in the fields of bionic robots, medical devices and wearable devices as actuators and sensors. In this perspective, we discuss the development of polymer matrices and applications of IPMCs, from actuating to multifunctional sensing. The latest ionic polymer matrixes for IPMCs show the trend toward being printable, programmable and degradable, which will facilitate multi-scenario applications of IPMCs. Regarding the applications, IPMCs have been widely used in various fields as actuators and multi-parameter sensors, and related devices will be further developed in the direction of miniaturization, integration and intelligence. Furthermore, some suggestions are put forward to facilitate the further development and wide application of IPMCs. © 2024 RSC.

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High-precision trajectory calibration for robot surface machining by meta-heuristic search algorithm from local error in machining area

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International Journal of advanced Manufacturing technology 2025年第5期138卷 2281-2295页

作者： Bi, Guangde Lu, Lei Zhang, Lei Fan, Cheng Sun, Lining School of Mechanical and Electric Engineering Jiangsu Provincial Key Laboratory of Advanced Robotics Soochow University Suzhou215123 China State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin150001 China

Industrial robots used in complex surface machining are gradually increasing because of their high flexibility and large workspace. However, due to their low geometric accuracy, their application in high-precision surface machining is hindered. In order to improve the machining accuracy, a high-precision robot trajectory calibration method for complex surface machining is proposed. In the machining process, the machining trajectory is usually only within a certain machining area. In the method, high-precision standard balls are set at the boundary of the machining area. Based on the precise position information of these standard balls, the trajectory of the robot in the machining area is calibrated. Compared with the global robot calibration method, the proposed method can calibrate the robot trajectory in the machining area through standard parts, which will improve the trajectory accuracy of the machining robot to the level of repeated positioning accuracy. In this method, a large amount of standard ball data is obtained by the in-place measuring device before the machining process. Then, based on these data, a meta-heuristic search algorithm is used to calibrate the kinematic deviation of the robot measurement and the machining system. The trajectory of the machining robot is adjusted by the kinematic deviation after calibration, and it is applied to the motion control of the machining process to improve the positioning accuracy of the machining trajectory. In the end, to verify the accuracy and practicability of the machining trajectory obtained by this method, measurement and machining experiments are carried out. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2025.

关键词： Industrial robots

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Advances in Research of Molded Pulp for Food Packaging

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Journal of Renewable Materials 2023年第11期11卷 3831-3846页

作者： Yifan Liu Shufeng Ma Feijie Wang Liqiang Wang Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology Wuxi214122China School of Food Science and Technology Jiangnan UniversityWuxi214122China

The molded pulp,a product of three-dimensional papermaking technology,is environmentally friendly and has a low environmental impact due to its ability to decompose quickly in the natural environment after *** application of molded pulp for food packaging can replace or reduce the use of plastic food *** extract fibers from plants for the production of safe and hygienic molded pulp for food packaging,and they also study and enhance the qualities of molded pulp to broaden its use in the food *** paper reviews the sources and varieties of plant fiber used in molded pulp for food packaging,as well as research on the improvement and optimization of the performance of molded pulp ***,issues with molded pulp’s actual use for food packaging are reviewed,along with the potential for future *** work can serve as a reference for molded pulp applications and research in the food industry in the future.

关键词： Molded pulp food packaging plant fiber properties

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O-doping strategy enabling enhanced chemical/electrochemical stability of Li_(3)InCl_(6) for superior solid-state battery performance

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Journal of Energy Chemistry 2024年第12期99卷 484-494页

作者： Qiyue Luo Chen Liu Lin Li Ziling Jiang Jie Yang Shaoqing Chen Xia Chen Long Zhang Shijie Cheng Chuang Yu State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074HubeiChina College of Energy Soochow Institute for Energy and Materials InnovationsJiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy TechnologiesSoochow UniversitySuzhou 215006JiangsuChina College of Physics and Energy Fujian Normal UniversityFuzhou 350117FujianChina

Solid-state electrolytes with high oxidation stability are crucial for achieving high power density allsolid-state lithium *** electrolytes are promising candidates due to their outstanding compatibility with cathode materials and high Li^(+)***,the electrochemical stability of chloride electrolytes is still limited,leaving them unsuitable for ultrahigh voltage ***,chemical compatibility issue between sulfide and halide electrolytes affects the electrochemical performance of all-solid-state ***,Li-ion conductor Li_(3+x)InCl_(6-x)O_(x) is designed to address these ***_(3.25)InCl_(5.75)O_(0.25)shows a Li-ion conductivity of 0.90 mS cm^(-1)at room temperature,a high onset oxidation voltage of 3.84 V,fewer by-products at ultrahigh operation voltage,and good chemical compatibility with Li_(5.5)PS_(4.5)Cl_(1.5).The Li_(3.25)InCl_(5.75)O_(0.25)@LiNi_(0.7)Co_(0.1)Mn_(0.2)O_(2)-Li_(3.25)InCl_(5.75)O_(0.25)-VGCF/Li_(3.25)InCl_(5.75)O_(0.25)/Li_(5.5)PS_(4.5)Cl_(1.5)/Li-In battery delivers good electrochemical performances at high operating *** work provides a simple,economical,and effective strategy for designing high-voltage all-solid-state electrolytes.

关键词： Li_(3)InCl_(6) O doping Wide electrochemical window Chemical stability Interfacial stability Superior electrochemical performance

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Study on Design and Performance of a Bionic Fish Driven by Four IPMC Fins 1

引用

16th International Conference on Intelligent robotics and Applications, ICIRA 2023

作者： Ji, Yujun Tang, Gangqiang Zhao, Chun Pan, Yifan Zhu, Denglin Wang, Yanjie Jiangsu Provincial Key Laboratory of Special Robot Technology Hohai University Changzhou Campus Changzhou213022 China

ISBN: (数字)9789819964987

ISBN: (纸本)9789819964970

Bionic fish, as a combination of fish swimming mechanism and robot technology, provides a new idea for the development of underwater vehicles, and has important research value and application prospect. According to the structure and swimming mechanism of fish pectoral fin, a bionic pectoral fin which can flexibly bend and swing under low voltage is designed by using IPMC material, which has the advantages of simple structure, no noise and low power consumption. At the same time, the bionic fish adopts symmetrical structure design, and uses the mutual force compensation between four IPMC pectoral fins to swim along a fixed trajectory. Experiments show that the swimming speed of IPMC bionic fish can reach 1 mm/s, and keep uniform linear motion, which has the advantages of high flexibility and strong controllability. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023.

关键词： Bionics

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Influence of Contact Characteristics on Pressure Sensing of IPMC Sensors 16th

Influence of Contact Characteristics on Pressure Sensing of ...

引用

16th International Conference on Intelligent robotics and Applications, ICIRA 2023

作者： Tang, Gangqiang Zhao, Xin Ji, Yujun Zhao, Chun Mei, Dong Wang, Yanjie Jiangsu Provincial Key Laboratory of Special Robot Technology Hohai University Changzhou Campus Changzhou213022 China

ISBN: (纸本)9789819964826

Ionic flexible sensors have shown broad application prospects in wearable devices, special environmental monitoring and intelligent human-computer interaction. As a typical kind of ionic flexible sensor, ionic polymer (IPMC) metal composite can response to stimuli like bending, pressure, humidity and so on. However, the current researches about pressure sensing of IPMC mainly considers that IPMC is in full contact with the object, but how the characteristics of the contact object affect the pressure sensing performance of IPMC have not been revealed. In this paper, we studied the influence of different contact characteristics on the pressure sensing signal of IPMC by designing a series of contact objects with cone, prism and planar structures through 3D printing. Then the pressure sensing process were simulated in multi-physical fields based on Zhu’s model to verify the experimental results. The conclusion may provide a potential for the identification of different contact characteristics using ionic flexible sensors. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Human computer interaction

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Process planning and contour-based error compensation for precision grinding of miniature scalpels

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先进制造进展（英文版） 2024年第1期12卷 108-123页

作者： Cheng Fan Cao-Yang Xue Jun Zhao Wei Jiang Wen-Ge Han Lei Zhang Li-Ning Sun Jiangsu Provincial Key Laboratory of Advanced Robotics School of Mechanical and Electrical EngineeringSoochow UniversitySuzhou 215021JiangsuPeople's Republic of China Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical and Electrical EngineeringZhejiang UniversityHangzhou 310027People's Republic of China State Key Laboratory of Intelligent Equipment and Manufacturing School of Mechanical EngineeringZhejiang University of TechnologyHangzhou 310023People's Republic of China

Miniature scalpels are mainly used in microsur-geries such as ophthalmic and cardiovascular *** size of a miniature scalpel is only a few millimeters,and the precision of the blade shape is high,which makes pro-duction of miniature scalpels extremely *** study proposes a new sharpening process for grinding miniature scalpels on a four-axis machine tool.A post-processing algo-rithm for a four-axis grinding machine based on a kinemat-ics model is *** then propose a corresponding parameter calibration method for the parameters used in the kinematics *** of possible errors in the param-eter calibration,a contour-based error compensation method is proposed for accurate adjustments to the edge shape fol-lowing *** can solve the problem of large devia-tions between the actual edge shape after grinding and the ideal edge *** effectiveness of the proposed process planning and error compensation method is verified experi-mentally,and the grinding process parameters of the minia-ture scalpel are optimized to improve its surface processing *** sharpness of the optimized miniature scalpel is less than 0.75 N,and the blade shape is symmetrical,which meets the technical requirements of miniature scalpels.

关键词： Miniature scalpel Sharpening Kinematics Error compensation Grinding

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Nanoindentation behavior and creep-induced cracking of long-term crept austenitic steel at 650℃

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Journal of Iron and Steel Research International 2024年第2期31卷 464-474页

作者： Zhen Zhang Yu-hang Duan Shuai Wang Jin-shan Chen An-zhe Wang Xiang-yang Mao Yuan-ji Shi Jie Zhang Ming Liu Zheng-fei Hu School of Materials Science and Engineering Nanjing Institute of TechnologyNanjing211167JiangsuChina Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing211167JiangsuChina Jiangsu Wind Power Engineering Technology Center Nanjing210023JiangsuChina Nanjing Vocational University of Industry Technology Nanjing210023JiangsuChina Baoshan Iron&Steel Co. Ltd.Shanghai201900China Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing School of Mechanical Engineering and AutomationFuzhou UniversityFuzhou350116FujianChina School of Materials Science and Engineering Tongji UniversityShanghai201804China

The grain boundary(GB)damage of long-term crept HR3C(25Cr–20Ni–Nb–N)austenitic steel with solid solution state was investigated by nanoindentation test accompanied with in-situ electron back-scattered *** corresponding microstructure was characterized by scanning electron microscopy and transmission electron *** show that the increase in nanoindentation hardness at the GBs and triple grain junctions may be related to the dislocation accumulation and carbide growth during the *** M23C6 and dislocations piling-up at the GB accelerate the nucleation and coalescence of creep cavity along the *** nanoindentation hardness in grains varies with orientation of the stress *** orientation difference of neighbor grains may induce local high geometrically necessary dislocation densities and strain gradients near the GB,consequently causing stress concentration and subsequent crack growth at specific GBs.

关键词： Austenitic steel Creep Nanoindentation Grain orientation Creep-induced cracking

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Configuration Synthesis and Lightweight Networking of Deployable Mechanism Based on a Novel Pyramid Module

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Chinese Journal of Mechanical Engineering 2023年第4期36卷 294-310页

作者： Jinwei Guo Jianliang He Guoxing Zhang Yongsheng Zhao Yundou Xu School of Mechanical Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China Parallel Robot and Mechatronic System Laboratory of Hebei Province Yanshan UniversityQinhuangdao 066004China Key Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of National Education Yanshan UniversityQinhuangdao 066004China

Deployable mechanism with preferable deployable performance,strong expansibility,and lightweight has attracted much attention because of their potential in aerospace.A basic deployable pyramid unit with good deployability and expandability is proposed to construct a sizeable deployable ***,the basic unit folding principle and expansion method is *** configuration synthesis method of adding constraint chains of spatial closed-loop mechanism is used to synthesize the basic ***,the degree of freedom of the basic unit is analyzed using the screw theory and the link dismantling ***,the three-dimensional models of the pyramid unit,expansion unit,and array unit are established,and the folding motion simulation analysis is carried *** on the number of components,weight reduction rate,and deployable rate,the performance characteristics of the three types of mechanisms are described in ***,prototypes of the pyramid unit,combination unit,and expansion unit are developed to verify further the correctness of the configuration synthesis based on the *** proposed deployable mechanism provides aference for the design and application of antennas with a large aperture,high deployable rate,and *** has a good application prospect in the aerospace field.

关键词： Pyramid unit Deployable mechanism Configuration synthesis Structural design Lightweight networking

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