Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (05): 64-69.doi: 10.13475/j.fzxb.20180502106

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation and properties of modified carbon black for dope dyeing of polylactic acid fiber

DONG Hao1,2, ZHANG Liping1,2, LIU Yining3, WANG Lejun3, LIU Yayun4, FU Shaohai1,2()   

  1. 1. Jiangsu Engineering Research Center for Digital Textile Inkjet Printing, Wuxi, Jiangsu 214122, China
    2. Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
    3. Hengtian Fiber Group Co., Ltd., Beijing 100020, China
    4. Shanghai Anoky Digital Technology Co., Ltd., Shanghai 200000, China
  • Received:2018-05-08 Revised:2018-12-27 Online:2019-05-15 Published:2019-05-21
  • Contact: FU Shaohai E-mail:shaohaifu@hotmail.com

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Abstract:

In order to solve the problem of deterioration of the mechanical properties caused by the poor compatibility between carbon black and polylactic acid in the dope dyeing process of polylactic acid fiber, polylactic acid modified carbon black was prepared by in-situ polymerization, which was then used in the dope dyeing of PLA. The effects of lactide dosage, reaction temperature, time and other factors on the particle size and particle size distribution of polylactic acid modified carbon black were explored, and the dispersion stability thereof in polylactic acid spinning solvent was tested. The polylactic acid spinning solution and the polylactic acid film added with the unmodified carbon black or the modified carbon black were analyzed and characterized. The results show that the modified carbon black has a minimum particle size (184.2 nm) when the dosage of the lactide monomer is 1.5 g, the polymerization time is 6 h, and the polymerization temperature is 70 ℃. The polylactic acid modified carbon black can be stably dispersed in polylactic acid spinning solvent, and has good compatibility with polylactic acid. Compared with unmodified carbon black, the mechanical properties of polylactic acid are improved after adding modified carbon black.

Key words: polylactic acid fiber, dope dyeing, carbon black, dispersion stability, compatibility

CLC Number: 

  • TS193.2
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