Sorption thermodynamic and kinetic study of polylactic acid fibers with disperse dyes in non-aqueous medium

Suxin Xu, Jiangang Chen, Luyi Chen, Bijia Wang, Yiqi Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The sorption thermodynamics and kinetics of disperse dyes on polylactic acid (PLA) fibers were investigated. PLA is crucial for a sustainable textile industry. However, the low dye exhaustion limits the textile application of PLA fibers. The basic dyeing parameters have been determined to provide an in-depth understanding of dyeing behavior. The weak sorption affinities were attributed to the weak dye-fiber interaction and favorable chemical potential of dyes in solvent. Enthalpy-entropy compensation effect also played a role in weak sorption. The interplay of dye structure and enthalpy, entropy changes was rationalized using molecular surface area and rotatable bonds. The conformation constraint strategy was proposed to overcome weak sorption affinity problem by lowering the entropy penalty. Temperature dependence of diffusion coefficients was well reproduced using molecular collision based diffusion model. The activation energies of diffusion have been correlated with molecular volumes of dyes.

Original languageEnglish (US)
Title of host publicationWool and Textiles Sustainable Development
EditorsJianzhong Shao, Jiping Wang, Jiping Wang
PublisherTrans Tech Publications Ltd
Pages121-132
Number of pages12
ISBN (Print)9783038355724
DOIs
StatePublished - Jan 1 2015
Event13th International Wool Research Conference, IWRC 2015 and AATCC Sustainability Symposium, AATCC-SS 2015 - Hangzhou, China
Duration: Jun 10 2015Jun 14 2015

Publication series

NameKey Engineering Materials
Volume671
ISSN (Print)1013-9826

Other

Other13th International Wool Research Conference, IWRC 2015 and AATCC Sustainability Symposium, AATCC-SS 2015
CountryChina
CityHangzhou
Period6/10/156/14/15

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Keywords

  • Enthalpy-entropy compensation
  • Kinetics
  • Molecular collisions
  • Molecular descriptors
  • PLA
  • Thermodynamics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Xu, S., Chen, J., Chen, L., Wang, B., & Yang, Y. (2015). Sorption thermodynamic and kinetic study of polylactic acid fibers with disperse dyes in non-aqueous medium. In J. Shao, J. Wang, & J. Wang (Eds.), Wool and Textiles Sustainable Development (pp. 121-132). (Key Engineering Materials; Vol. 671). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.671.121