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Influence of Potential Differential Voltage on Electric Resistance of Needle Punched Non-woven Jute Fabrics

Sharmin Akter
SO
BJRI, Manik Mia Avenue, Dhaka-1207

Tahnin Bintay Kamal
SO
BJRI, Manik Mia Avenue, Dhaka-1207

Mahmuda Khatun
SSO
BJRI, Manik Mia Avenue, Dhaka-1207

Md. Mahbubul Alam
SSO
BJRI, Manik Mia Avenue, Dhaka-1207

Md. Zobaidul Hossen
SO
BJRI, Manik Mia Avenue, Dhaka-1207

Rezaul Karim
Lecturer
Dept. of Textile Engineering, Sonargaon University, Dhaka, Bangladesh

Abstract/ Executive Summary:

In this research, the electrical resistance of needle-punched non-woven jute fabric at different input voltage was measured. Here, to determine the electrical resistance, a device named the digital impedance meter has been used. The specific resistance for a different gauge length of non-woven jute fabric has been observed to enhance the use of jute fabric for electrical purposes. It has been observed that the electrical resistance increased with a higher value of gauge length and decreased with the increase of input voltage.

Keywords: Needle punched Non-woven, Voltage, Gauge length, Jute-fabric, and Specific resistance

Location: BJRI

Start Date:

End Date:

Program Area: Physical and Mechanical Properties

Commodity: Jute products

Objectives:

Different textile materials like cotton, silk yarns are usually used as insulators. But the utilization of textile materials has been reduced with extensive use of synthetic polymers (Sengupta et al., 1985). It has been reduced the cost of insulation. On the other hand, the natural fibre jute has gained more attention because of its availability, less costly, and also for eco-friendly uses. There is enough scope for using jute fabrics as insulators.

Methodology:

The experiment is performed by using Digital Impedance Meter. This meter is a digital format of LRC circuit. Samples are placed at the fixed terminal of the meter and the expected results are shown on the screen. The specific resistance is measured for different voltages and also for different gauge lengths. At first non-woven jute fabric sample of 1.0 gauge length is placed on the respective terminal. The sample is in series with a known resistance 10MΩ and is connected to a DC power supply. The voltage is changed from 60 to 100 volts and the corresponding current through the sample is measured. The current is taken after 10 seconds to measure resistance. These steps are repeated for non-woven jute fabric of 1.5cm gauge length and also for 2.0 cm gauge length. Experimental readings are taken to draw a V-I characteristics curve. The V-I characteristics of each slope are determined. This experiment is performed at room temperature 30°C.

Source of Information: Aust. J. Eng. Innov. Technol., 2(1), 1-6.

Article Link (Online Journal): https://doi.org/10.34104/ajeit.020.0106 http://www.universepg.com/journal/ajeit

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The electrical resistance of nonwoven jute fabrics decreases with the increase of input voltage. For non-conducting material, resistance remains constant with the increase of voltage as current also increases with the increase of voltage. But from this study, we see that current is not increasing proportionately and hence resistance decreases. The significant fall at high voltages is a usual breakdown of insulation. It signifies that if we want to use jute fabrics for electrical purposes, we should be careful about using higher voltages. The resistance increases with the increase of gauge length of fabrics. It means that the gauge length is a more important matter of consideration for using non-woven jute fabrics as insulators.

Knowledge Management: Journal