2024-03-29T13:36:56Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00003629
2022-12-15T03:36:46Z
154:501:502
453:454
Adsorption of Fabric Softener on Textile-Fiber Surface
柔軟仕上げ剤の繊維表面への吸着現象
柔軟仕上げ剤の繊維表面への吸着現象
中村, 和吉
44128
藤原, 夏美
44129
柔軟仕上げ剤
ベシクル
剛軟性
吸水性
fabric softener
vesicle
bending resistance
water absorption
The double-chain cationic surfactant(dioctadesyl dimethyl ammonium chloride;DODAC), is used as a fabric softener or for hair rinsing. The morpology of DODAC aggregates adsorbed on a hydrophilic surface were investigated by electron and atomic force microscopy. An aqueous DODAC dispersion was dropped on a hydrophilic nitrocellulose membrance which was then observed by transmission electron microscopy using negative-staining. Multilayer vesicles(250nm in mean diameter) were adsorbed on the hydrophilic surface. Following ultrasonication, small unilamellar vesicles could be seen on the surfaces. The texture and thickness of vesicles on the mica surface were examined by atomic force electron microscopy. The thickness of ultrasonicated vesicles after drying was 4 nm. Interior water of the vesicles was eliminated by drying, and the closed-shell structure collapsed. And this may have caused the bilayer to take on an interdigitated structure. By measuring the bending resistance and water absorption, it was found that both properties largely depend on the size of the vesicles. Smaller vesicles are superior for use in fabric softeners. DODAC molecules do not form monolayers on a hydrophilic surface, but are adsorbed as vesicles.
journal article
日本家政学会
1998-04
application/pdf
日本家政学会誌
4
49
383
388
日本家政学会誌
AN10040097
09135227
https://niigata-u.repo.nii.ac.jp/record/3629/files/49(4)_383-388.pdf
jpn