Journal
EUROPEAN POLYMER JOURNAL
Volume 51, Issue -, Pages 120-129Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2013.12.004
Keywords
Polypropylene; Permanently antimicrobial; Contact activity; Melt grafting
Categories
Funding
- Major Program of Natural Science Fund of China [5093302]
- Shanghai Natural Science Funds [13ZR1411400, 12ZR1407800]
- Fundamental Research Funds for the Central Universities [222201313012]
- Shanghai Key Laboratory Project [08DZ2230500]
Ask authors/readers for more resources
A permanently antimicrobial polypropylene (PP-g-PHMG) was obtained by covalently bonding 0.5% poly(hexamethylendiamine-guanidine hydrochloride) (PHMG), a guanidine-based antimicrobial polymer, based on total weight onto polypropylene (PP) matrix using a melt grafting method in supercritical CO2 (SC CO2) assisted process. Attributed to the higher grafting efficiency, the hydrophilic PHMG is uniformly dispersed in PP matrix without any aggregate, which potentially enhances the antimicrobial activity. The resulting PP-g-PHMG pellets showed quickly and efficiently antimicrobial activity against both Gram-positive and Gram-negative bacteria. Furthermore, the antimicrobial activity of the PP-g-PHMG non-woven fabrics prepared by a spun-bonded method remained even after constant water washing for 10 days, indicating its permanently antimicrobial ability via a contact activity rather than a release mechanism. In addition, animal tests were conducted to evaluate the safety of the antimicrobial PP fabric in the case of direct skin contact and water washing. (C) 2013 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available