Optimization of Separation Process of Waste Polyester-Cotton Fiber by Using Response Surface Analysis

Abstract:

In this study, the response surface methodology was used to optimize parameters of the diluted hydrochloric acid hydrolysis method, which was adopted to separate the polyester-cotton blend fiber. The four parameters reaction time, mass fraction of hydrochloric acid, reaction temperature and solid-liquid ratio were determined by the single factor experiment as they are significant for the process of separation. By introducing the experiment of four factors on three levels designed by Box-Benhnken central composite method, a quadric polynomial regression model for the fiber weight loss rate was established. And the response surface graphs were plotted to illustrate the optimizing process. The response surface analysis determined that the optimized value of the four parameters were 98 minutes, 10.7%, 96.5 °C and 4.3 g/100ml respectively. Under these conditions, polyester-cotton blend fiber was completely separated.

• Periodical: Advanced Materials Research (Volumes 535-537)
• Pages: 1564-1568
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.535-537.1564
• Online since: June 2012
• Authors: Huang Huang, Yong Ling Yu, Wei Kong
• Keywords: Dilute Hydrochloric Acid, Polyester-Cotton, Separation, Waste Fiber

References

[1] Li Han, Yan Gao, Jing Li. Reprocessing of Waste Textile Fibers and Quality and Safety Controls of Reclaimed Fibers[J]. China fiber inspection, 2010 (1) : 74~77.

[2] Xueming Hu, Haiyan Zhang. Stutas of Recycling and Reuse of Waste Textile [J]. China Textile Leader, 2006(7):52~53.

[3] Lishou Yuan. PET recycling technology[j]. Friend of Chemical Industry, 2007(11):34.

[4] Dechen Wang. PET recycling technology of new materials [j]. China Synthetic Fiber Industry, 2006, 29 (2):46~49.

[5] S.Altun, Y.Ulcay. Improvement of Waste Recycling in PET Fiber Production [J].Journal of Polymers and the Environment, 2004, 12(4) : 231~237.

DOI: 10.1007/s10924-004-8150-4

[6] Youjiang Wang. Fiber and Textile Waste Utilizations [J]. Waste Biomass Valor, 2010 (1): 135~143.

[7] Guiyong Li, Yuanlv Cao, Mingqiao Ge. Production of textile fiber with recycled PET [J]. Journal of Textile Research, 2006, 27(8) : 101~108.

[8] Yuhong Xie, Yan Zhen, Lijun Xu. Medium Optimization of Streptomyces mediolani Degrading Biomass into Ethanol by Response Surface Methodology [J]. Liquor-Making, 2008, 35(6): 74~77.

[9] Zengxiang Lin, Hongman Zhang, Lishi Yan. Response surface methodology optimized fiber pretreating methods [J].Chemical Industry and Engineering Progress, 2008, 27: 130~133.

[10] GB/T 2910.11-2009, Textiles-Quantitative chemical analysis Part 11: Mixtures of cellulose and polyester fibres (method using sulfuric acid) [S].

DOI: 10.3403/30231089

[11] Norman R,Friedrich P.Ridge analysis of mixture res-ponse surfaces[J]. Statistics&Probability Letters,2000,48(2) : 131~140.