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Preparation of sound‐insulating material based on discarded cow hair
Author(s) -
Zhang Yiwei,
Zhang Benmin,
Shan Zhihua
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46332
Subject(s) - materials science , composite material , polyurethane , solvent , acrylic acid , mixing (physics) , butyl rubber , natural rubber , sound (geography) , polymer , acoustics , chemistry , organic chemistry , copolymer , physics , quantum mechanics
In this article, we report a study on new functional materials based on the structural features of hair. In this study, discarded cow hair was treated with acid and hydrogen peroxide, dried, and pulverized to obtain a hair powder (HP). A sound‐insulating film (SIF) was prepared via the mixing of HP with acrylic resin [poly(acrylic acid) (PAA)]. On the basis of the function for the SIF, the formation conditions, including the HP weight percentage, film‐forming temperature, and solvent, were investigated. The sound‐insulating properties were studied and compared with commercially available sound‐insulating materials. The SIF had an equivalent sound‐insulating power to that of an asphalt‐based or a rubber‐based board but a better power than that of a polyurethane (PU)‐foam‐based board with identical thicknesses in the 20–20,000 Hz sound wave. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46332.