Polylactic acid/polypropylene polyblend fibers for better resistance to degradation

Narendra Reddy, Digvijay Nama, Yiqi Yang

Research output: Contribution to journalArticlepeer-review

149 Scopus citations


Polyblend fibers were produced from five ratios of polylactic acid/polypropylene (PLA/PP) in an effort to improve the resistance to hydrolysis and biodegradation, and to improve the dyeability of PLA. The inherent limitations of PLA such as its relatively poor resistance to hydrolysis have restricted the use of PLA. When made into polyblend fibers, the two polymers, PLA and PP, show partial compatibility and the mechanical properties of the blends are inferior compared to the pure PLA or PP fibers. However, PLA in the blends had substantially better resistance to biodegradation and hydrolysis, and dyeability with disperse dyes, resulting in a polyblend fiber with much better resistance to hydrolysis and similar dyeability to PLA. Blending PP with PLA could be a simple and effective method to create a new fiber with better resistance to hydrolysis and lower price than PLA, and better dyeability, sustainability and faster degradability than PP.

Original languageEnglish (US)
Pages (from-to)233-241
Number of pages9
JournalPolymer Degradation and Stability
Issue number1
StatePublished - Jan 2008


  • Biodegradation
  • Fiber
  • Hydrolysis
  • Polyblend
  • Polylactic acid
  • Polypropylene

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry


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