Study of the Structure and Properties of Alginate Fiber with Antibacterial Activity
The alginate fiber with antibacterial activity was prepared by spinning sodium alginate into the coagulating solution composed of antibacterial agents and CaCl2 aqueous solution. The mechanical properties, morphology and chemical structure of this fiber were investigated and compared with common alginate fibers, cotton fibers and viscose fibers by Electronic Single Fiber Tensile Strength Tester, SEM, FTIR. Otherwise, the absorption capacity of this fiber was determined by using centrifugal method and the antibacterial efficiencies of this fiber were assessed according to AATCC Test Method 100-1999. The breaking tenacity of this fiber was 2.34 cN/dtex, which approximated to that of common alginate fibers, higher than that of viscose fibers, but lower than that of cotton fibers. According to the SEM micrographs, this fiber had a smooth surface with grooves and irregular serrated-shaped cross section, which were similar with viscose fiber. This fibers capacity of absorbing man made blood was 12.89 gram per gram of this fiber, which approximated to common alginate fibers but much better than cotton fibers and chitin fibers. The inhibitory rate of this antibacterial alginate fiber to Gram-positive S. aureus and Gram-negative E. coli respectively was 99.3％, 98.6％.
alginate fiber antibacterial activity mechanical properties SEM micrographs absorption capacity
Zhu Ping Zhang Chuan-jie Sui Shu-ying
Key Laboratory of Green Processing and Functional Textiles of New Textile Materials (Wuhan University of Science and Engineering), Ministry of Education,Wuhan 430073, China
国际会议
上海
英文
1035-1038
2009-05-27（万方平台首次上网日期，不代表论文的发表时间）