Effects of Wet and Hot Press Treatments on Structure and Properties of Mechanically Fabricated Natural Silk Non-woven Fabrics 


Vol. 55,  No. 6, pp. 381-389, Dec.  2018
10.12772/TSE.2018.55.381


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  Abstract

This study investigates the effects of wet and hot press treatments on the structure and mechanical properties of natural silk non-woven fabric under two post-treatment conditions: (a) hot press without wet treatment and (b) hot press with wet treatment. With respect to the fabric structure, a hot press without wet treatment does not alter the arrangement of silk filaments, while a hot press with wet treatment causes wrinkles in the fabric, and further bending of the silk filaments as the temperature is increased. With respect to the fabric mechanical properties, there is no improvement observed in the first condition, while the tensile strength of the fabric remarkably increases in the second condition when the hot press temperature is increased up to 200℃, indicating the crucial swelling of sericin by wet treatment to bind silk filaments. However, at a hot press temperature reaching 230 ℃, tensile strength decreases due to the molecular degradation of sericin. Moreover, hot press significantly decreases the porosity of the natural silk non-woven fabric with the wet treatment further accelerating the effect.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)