研究目的
Investigating the effects of dry-spinning parameters on the physical properties of carbon nanotube (CNT) threads, including electrical resistivity and mechanical strength, to tailor these properties for specific applications.
研究成果
The research demonstrates that the physical properties of CNT threads, such as electrical resistivity and mechanical strength, can be tailored by adjusting assembly parameters like twist angle and turns/meter. This understanding enables the design of CNT threads with optimized properties for specific applications, highlighting the potential for advancements in CNT-based materials and technologies.
研究不足
The study acknowledges the challenge of achieving uniform thread diameter and density due to the nanoscale dimensions and the large number of CNTs involved. The presence of voids within the thread structure and the difficulty in controlling the twist angle precisely are noted as potential limitations.
1：Experimental Design and Method Selection:
The study involved dry spinning of CNT threads from vertically aligned CNT arrays, focusing on the control of thread assembly parameters such as twist angle and turns/meter.
2：Sample Selection and Data Sources:
Five different CNT array-widths (4, 8, 12, 16, and 20 mm) were used to fabricate threads with varying diameters.
3：List of Experimental Equipment and Materials:
Equipment included an Oxford milling laser for trimming array edges, a Sartorius ME5 microbalance for weighing, a Keyence High Accuracy CMOS micrometer system for diameter measurements, and an Instron 5948 micro thread tensile testing machine for mechanical strength evaluation.
4：Experimental Procedures and Operational Workflow:
Threads were spun from CNT arrays by adjusting draw speeds and twist rates, followed by measurements of diameter, density, and physical properties.
5：Data Analysis Methods:
Electrical resistivity and mechanical strength were analyzed as functions of thread diameter, density, and twist angle.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
