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- Title
Bleaching cellulosic fibers via pre-sorption of N-[4-(triethylammoniomethyl)-benzoyl]-butyrolactam chloride.
- Authors
Xu, Changhai; Hinks, David; Shamey, Renzo
- Abstract
The sorption of a novel cationic bleach activator, N-[4-(Triethylammoniomethyl)benzoyl]-butyrolactam Chloride (TBBC), was measured on regenerated bamboo fiber. At 25 °C near neutral pH, the sorption rate of TBBC onto the fiber was initially rapid and equilibrium was reached within 20 min. Adsorption equilibria experiments followed a Freundlich isotherm. At the sorption equilibrium, bleaching was initiated by addition of sodium perborate to liberate hydrogen peroxide, which reacted with TBBC to generate a peracid that is a more kinetically active oxidant than peroxide. A sorption–activation model was developed that supports the enhanced bleaching of cellulosic fibers using cationic bleach activators under neutral to alkaline conditions.
- Subjects
CATIONS; BLEACHING materials; CHLORIDES; ADSORPTION (Chemistry); PEROXIDES
- Publication
Cellulose, 2010, Vol 17, Issue 4, p849
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-010-9412-z