Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
권호 표지

A Study on the Alkali Hydrolysis of PET fabric with Ultrasonic Application(I) - Decomposition Rate Constant and Activation Energy -

초음파를 적용한 PET 직물의 알칼리 가수분해에 관한 연구(I) - 분해속도상수와 활성화 에너지-

  • Published : 2002.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

In order to give a silk-like touch to PET fabrics, the PET fabrics were treated with NaOH alkaline solution in various conditions. In alkaline treatment, the liquor flow type pilot weight reduction apparatus with magnetostrictive ultrasonic transducer was used for the study. The weight loss of PET fabrics hydrolyzed in 4% and 6% NaOH solution, at $95^\circ{C}$ and $99^\circ{C}$ for 60min. with ultrasonic application showed 3.7~4.6% higher than that of treated fabric without ultrasonic application. From the difference of specific weight loss, the treatment condition of the maximum of hydrolyzation effect appeared at $95^\circ{C}$ in $4^\circ{C}$ and at $90^\circ{C}$ in 6% NaOH solution, respectively. During the alkali hydrolysis of PET fabrics, the decomposition rate constant(k) increased exponentially with the treatment temperature and were not related with ultrasonic cavitation. The activation energy$(E_a)$ in decomposition of PET fabrics were 21.06kcal/mol with ultrasonic application and 21.10kcal/mol without ultrasonic application. The ultrasonic application gave a little higher value of the activation entropy$(\Delta{S}^\neq)$ and a little lower value of Gibbs free energy$(\Delta{S}^\neq)$ compared with not used ultrasonic apparatus.

Keywords

References

  1. Man-Made Fibers R. W. Moncrieff
  2. J. Polym. Sci. v.4 Preparation of Propeties of Poly(methylene trephthalate) J. G. Smith;C. J. Kiber;B. J. Sulblett
  3. J. Appl. Polym. Sci. v.35 Solid-State Polycondensation of Poly(butylene terephthalate) L. H. Buxbaum
  4. J. Poly. Sci. v.2 Polyester of 1,4-Cyclohexane-dimethanol C. J. Kiber;A. Bell;J. G. Smith
  5. J. Poly. Sci. v.10 Copolyesters of Glycols and Bisphenols : A New preparative Process F.L. Hamb https://doi.org/10.1002/pol.1972.170101109
  6. 加工技術 v.22 遠赤外線によるサ-モゾ-ル染色 今井健
  7. 加工技術 v.24 遠赤外線ヒ-タ-利用によるタオル絲の乾燥 吉井淸明
  8. Text. Res. J. v.55 Incoporating Nitrogen onto the Surface of Polyester Fabrics by N₂and Air Plasmas T. Hirotsu https://doi.org/10.1177/004051758505500511
  9. Melliand Textilberichte v.4 Plasma Treatment of Textiles-Potential Application and Future Prospects W. Rakoski;M. Okoniewski;K. Bartos;J. Zawadzki
  10. J. Text. Inst. v.87 Microwave Process for the Combined Desizing, Scouring and Bleaching of Grey Cotton Fabrics I. Tarakcioglu;P. Anis https://doi.org/10.1080/00405009608631364
  11. Text. Res. J. v.60 Effect of Microwave Irradiation on Attagenus Unicolor(Brahm)(Coleoptera : Derm estidae) and the Physical and Chemical Properties of Wool M. Dever;P. Hanson;R. Bry;J. Aleong https://doi.org/10.1177/004051759006001209
  12. The Royal Society of Chemistry Current trends in sonochemistry G. J. Price
  13. J. Soc. Dyers Colour v.111 Low temperature ultrasonic dyeing of silk S. R. Shukla;M. R. Mathur https://doi.org/10.1111/j.1478-4408.1995.tb01681.x
  14. J. Soc. Dyers Colour v.111 Use of ultrasonic energy in reactive dyeing of cellulose fabrics E. Oner;I. Baser;K. Acar https://doi.org/10.1111/j.1478-4408.1995.tb01741.x
  15. Melliand Textilberichte v.80 Degumming of silk in an ultrasonic field A. Krasowski;B. M$\"{u}$ller;J. F$\"{o}$hles;H. H$\"{o}$cker
  16. Technical Textiles v.42 Reduction of residual accompanying substances on technical textiles using an ultrasonic industrial washing technique P. Ehrler;W. G$\"{u}$ndisch;S. Haller
  17. A Study on the dissolution Rate of Poly(ethylene terephthalate) Fabrics treated with Mono-sodium Ethylene Glycolate Y. J. Kim
  18. Chemical Kinetics Basic H. Eyring;S. H. Lin;S. N. Lin
  19. Chemical Kinetics and Dynamics J. I. Steinfeld;T. S. Francisco;W. L. Hase
  20. Physical Chemistry P. W. Atkins
  21. American Dyestuff Reporter v.79 Application of Ultrasound to Textile Wet Processing K. A. Thakore;C. B. Smith;T. G. Clapp
  22. Jpn. Res. Assn. Text. End-Uses v.35 Cleaning and its Mechanical efficiency of Cloths by Ultrasonic Techniques T. Azakami;N. Kusakabe