Preparation and evaluation of the self-cleaning poly (lactic acid) (PLA) film blended with Titanium dioxide (TiO2) nano particles

Chengjiao Zhang, Xin Cai, Faming Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)


In this study, a photocatalytic material (the nano-sized titanium dioxide) was introduced into poly (lactic acid) (PLA) to produce films with self-cleaning function. Prototypes containing 0, 5, 10, 15 and 20 wt% nano filler were prepared and then etched with proteinase K to expose the nano particles on the surface. Thermal properties of the polymer matrix were evaluated by the differential scanning calorimetry (DSC) and the thermogravimetric analysis (TGA). The self-cleaning function was assessed by the discoloration of methylene blue (MB) in aqueous condition via a UV-vis spectrophotometer. It was found that the nano particle had a minimal effect on the thermal property of the polymer matrix. The samples containing 15 wt% nano filler could totally degrade the methylene blue after 24h UV irradiation. The research findings might provide useful suggestions on the development of self-cleaning textiles based on TiO2 nano particles.
Original languageEnglish
Pages (from-to)121-126
Number of pages6
JournalIndustria Textila
Issue number2
Publication statusPublished - 1 Jan 2016
Externally publishedYes


  • Enzymatic etching
  • Methylene blue photo-degradation
  • Photocatalytic
  • Poly (lactic acid) (PLA)
  • Self-cleaning surface
  • Titanium dioxide (P25)

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • General Business,Management and Accounting
  • General Environmental Science
  • Polymers and Plastics


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