Preparation and characterization of linear low-density polyethylene/low-density polyethylene/TiO2 membranes

✍ Scribed by Xuyun Wang; Zhaobo Wang; Xin Wang

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 224 KB
• Volume: 98
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.22064

✦ Synopsis

Abstract

Because of their special functions, the application of nanoscale powders has recently attracted both industrial and theoretical interest. In this study, nanoscale TiO~2~, which exhibited a special UV absorption and consequent antibacterial function, was added to a low‐density polyethylene/linear low‐density polyethylene hybrid by melt compounding to yield functional composite membranes. TiO~2~ exhibited an apparent induced nucleation effect on the crystallization of polyethylene, and the size of the crystallites decreased while the number increaed with the introduction of TiO~2~; however, the crystallinity of polyethylene changed little. Also, TiO~2~ exhibited an ideal dispersion in the membrane with an average size less than 100 nm, and this excellent dispersion provided the membranes extra UV absorption; moreover, the transparency of the membranes was maintained to satisfy common requirements. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 216–221, 2005