|
Title: |
Preparation and Properties of Functionalization for PLA Film |
|
Source: |
Proceedings of the 17th IAPRI World Conference on Packaging (IAPRI 2010 E-BOOK)
(pp 254-258)
|
|
Author(s): |
Xiu-ke Fu, College of Packaging & Printing Engineering, Tianjin University of Science & Technology Tianjin, 300222, China
Jian-qing Wang, College of Packaging & Printing Engineering, Tianjin University of Science & Technology Tianjin, 300222, China
Zheng-wei Jin, College of Packaging & Printing Engineering, Tianjin University of Science & Technology Tianjin, 300222, China |
|
Abstract: |
Functionalized PLA films were prepared by extrusion blow molding. The tensile strength (TS), elongation at break (E), water vapor permeability (WVP), Oxygen permeability (OP), antimicrobial rate (AR), thermal properties and rheological properties were tested. The results showed that glass transition temperature (Tg) of the modified PLA material was 42.52 ℃，while that of the pure PLA was 65.6℃, and elongation at break of the prepared film reached up to 314%,but the TS is decrease from 64 MPa to 26.9 MPa. The antibacterial rate of PLA films to Escherichia coli, Staphylococcus aureus and Mildew were exceeded 95% by adding a copy of inorganic nano-titania/silver (TiO2/Ag+). The thermal stability of modified PLA was decreased, but rheological property was improved and the shaping process was modified.
|