Студенттер мен жас ғалымдардың «фараби әлемі» атты халықаралық ғылыми конференциясы
IMPROVING THE MECHANICAL AND ELECTRICAL PROPERTIES OF
жүктеу/скачать 2,6 Mb. Pdf көрінісі
|
Сборник конф Фараби Әлемі 2023 химфак-печать
| IMPROVING THE MECHANICAL AND ELECTRICAL PROPERTIES OF
CONDUCTIVE TEXTILES Yendigoyeva A.A. Research supervisor: Professor Thierry Djenizian al-Farabi Kazakh National University aiiizhan99@gmail.com Electronic textiles generally refers to textiles that are integrated with electronic components and systems, and provides electronic active functions. The global conductive textiles market size is growing rapidly, with a compound annual growth rate of 15,8% from 2021 to 2029. The growing demand for conductive textiles is due to a wide range of applications such as sports, healthcare, security, entertainment, military, and technical sectors, etc. There are two ways to manufacture conductive textiles. The first relies on the integration of conductive fibers, yarns, or threads into textiles by weaving, knitting, embroidering. The second approach is based on application of durable electrically conductive compounds on the surface of textiles through different coating strategies. And this method is given much attention due to its uniqueness in providing multi-functional characteristics, that is - electrical conductivity, EMI shielding, antibacterial properties. The most commonly used methods for metallization of textiles can be divided into three: 1) Printing of metallic inks on the surface (inkjet, screen, lithography). 2) Spray coating (thermal, cold, plasma-assisted). 3) Deposition (electroless, electrochemical, physical vapor, chemical vapor). Electrochemical deposition of a thin layer of reduced metal ions on electrically conductive substrates using electric current leads to surfaces´ metal coating. The electrochemical deposition of the conductive films on a flexible substrate has several advantages over other techniques, such as controlling the morphology and thickness by adjusting the deposition parameters. Moreover, the process requires low-cost equipment for an economically affordable process, and the process is simple with a high deposition rate. In this work, a conductive PET fabric with copper plated and then nickel plated was used. Copper has been electrodeposited for different durations from 30 sec to 1h. During electrodeposition, the electrolyte was CuSO 4 , the cathode was a conductive textile, and the anode was a copper plate. The electrical characteristics are determined by measuring the sheet resistance with the four- probe method. To determine the mechanical characteristics, a Mark-10 traction machine, and Keithley are used, and control and measurement was carried out using the computer with Python. The speed was 10 mm/min. And receives data with stretching, force and electrical resistance. The results show that the sheet resistance sharply decreases with the time of electrodeposition and electrodeposition deeply improves the mechanical resistance of the soldered interconnection. The mechanical strength from 2% in 60 seconds has improved 6 times by 12%. And for the copper soldering interconnection, the average elongation obtained is 17.5%. «Фараби Әлемі» атты студенттер мен жас ғалымдардың халықаралық конференциясы 274 жүктеу/скачать 2,6 Mb. Достарыңызбен бөлісу:
|