THERMAL SCIENCE

International Scientific Journal

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Fu-Juan Liu

,

Xi-Jia Zhang

,

Xin Li

SILKWORM (BOMBYX MORI) COCOON VS. WILD COCOON MULTI-LAYER STRUCTURE AND PERFORMANCE CHARACTERIZATION

ABSTRACT
As protective shells for their biological functions against environmental damage and attack by natural predators, the silkworm (Bombyx mori) cocoon and its wild partner have distinctive multi-layer structures, which are systematically studied in this paper by the SEM, the thermogravimetric analyzer, and the Fourier transform infrared spectroscopy. Their mechanical properties are also investigated for the whole hierarchy and each cascade as well. In order to better demonstrate the superior survivability of cocoons in harsh environments, air permeability and moisture vapor transmission rate of the silkworm cocoon are tested. The results show the silkworm cocoons have excellent air permeability and moisture vapor transmission rate. A better understanding of different cocoons' bio-functions will be of particular importance to design thermal textiles and provide better comfort and safety for clothing in future.
KEYWORDS
silkworm cocoon, multi-layer structure, wild cocoon, fractal calculus
PAPER SUBMITTED: 2018-04-30
PAPER REVISED: 2018-11-22
PAPER ACCEPTED: 2018-11-23
PUBLISHED ONLINE: 2019-09-14
DOI REFERENCE: https://doi.org/10.2298/TSCI1904135L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 4, PAGES [2135 - 2142]
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Silkworm (Bombyx mori) cocoon vs. wild cocoon multi-layer structure and performance characterization

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence