Tensile Properties and Poisson셲 Ratio of Thermocompressionbonded PET Nonwoven Fabrics Prepared by Needle-punching 


Vol. 20,  No. 9, pp. 1969-1974, Sep.  2019
10.1007/s12221-019-8976-y


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  Abstract

Composites using a resin-impregnated grid layer and a thermocompression-bonded PET nonwoven fabric are being developed as an alternative material for under-cover of vehicles. This material is lightweight and low-cost, and has excellent sound absorption performance and durability. In this study, the tensile properties and Poisson셲 ratio of thermocompression-bonded PET nonwoven fabrics prepared by needle-punching were measured. The specimen was formed by thermocompression bonding using hot press. Stress-strain curves of the 2 mm-thick specimens were calculated using a tensile tester and digital image correlation (DIC). The specimen thickness increased with increasing displacement along the tensile load direction in the thermocompression-bonded PET nonwoven fabrics prepared by needle-punching. This phenomenon started at the plastic region in the MD specimen and at the elastic region in the TD specimen. The Poisson셲 ratio in each plane was also calculated. Thus, the basic properties required to simulate the mechanical behavior of the thermocompression-bonded PET nonwoven fabrics prepared by needle-punching were evaluated.

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  Cite this article

[IEEE Style]

J. Lee, D. Park, J. R. Choi, K. Kim, "Tensile Properties and Poisson셲 Ratio of Thermocompressionbonded PET Nonwoven Fabrics Prepared by Needle-punching," Fibers and Polymers, vol. 20, no. 9, pp. 1969-1974, 2019. DOI: 10.1007/s12221-019-8976-y.

[ACM Style]

Jae-Chul Lee, Do-Hyung Park, Jeong Rak Choi, and Ki-Young Kim. 2019. Tensile Properties and Poisson셲 Ratio of Thermocompressionbonded PET Nonwoven Fabrics Prepared by Needle-punching. Fibers and Polymers, 20, 9, (2019), 1969-1974. DOI: 10.1007/s12221-019-8976-y.

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