期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 22, 页码 12158-12167出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b02507
关键词
layer by layer; biobased materials; starch; thermal stability; fire protection
Starch has been employed Via layer by layer assembly for building an efficient and sustainable biobased coatings capable of protecting cotton from fire. In order to obtain a better understanding of the coating to substrate relationship, the coating efficiency has been tested on cotton fabrics having different densities (i.e., 100, 200 and 400 g/m(2)). The adopted deposition conditions allow for the buildup of a homogeneous coating. even at a low number of deposition steps, The physical and chemical mechanisms are described and related to the achieved results. The coating can greatly enhance the char forming ability of cellulose, nearly doubling the amount of thermally stable organic residue produced by cotton at high temperatures, as assessed by thermogravimetric analyses. After only 2 bilayers deposited, this biobased system is capable of self-extinguishing a flame during flammability tests with less than 5% in weight deposited on cotton. This high efficiency is kept even when the coating is deposited on cotton with the highest density. By cone calorimetry, all treated cottons showed significant reductions (up to 40%) of the total heat released during combustion, thus demonstrating the high efficiency achieved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据