Flame retardant composite fiber and preparation method therefor
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United States of America Patent
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May 4, 2021
Grant Date -
Apr 16, 2020
app pub date -
Dec 9, 2019
filing date -
Jul 17, 2015
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Abstract
Provided is a method for preparing a flame-retardant composite fabric, the method sequentially including: a solution preparation step of mixing water with glycerol while heating them at a temperature of 60 to 80° C., thereby preparing a glycerol solution; a composite preparation step of adding powdery corn starch to the glycerol solution to obtain a glycerol/corn starch mixture, continuously stirring the glycerol/corn starch mixture, allowing the stirred glycerol/corn starch mixture to stand for a predetermined time, and then grinding the glycerol/corn starch mixture, thereby preparing a powdery thermoplastic starch composite; a powder application step of applying the powdery thermoplastic starch composite to a surface of a sheet-like flax fabric; and a hot-press molding step of subjecting the flax fabric with the thermoplastic starch composite applied thereto to compression molding using a hot press, thereby preparing a flame-retardant composite fabric; and also provides a flame-retardant composite fabric prepared thereby.
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