Preparation and antibacterial properties of polycaprolactone/quaternized chitosan blends  

作　　者：Anrong Zeng Yangtao Wang Dajun Li Juedong Guo Qiaowen Chen 

机构地区：[1]College of Materials and Chemical Engineering,Liming Vocational University,Quanzhou 362000,China

出　　处：《Chinese Journal of Chemical Engineering》2021年第4期462-471,共10页中国化学工程学报（英文版）

基　　金：the Science Foundations from Department of Education,Fujian Province,China(JZ180899).

摘　　要：This article is a preliminary study on antibacterial blends of polycaprolactone,chitosan and quaternized chitosan by melt processing.Blends were characterized,mechanical test and antibacterial evaluation against Escherichia coli and Staphylococcus aureus,were conducted.Results showed that the antibacterial potential of chitosan was limited in blends and polycaprolactone/chitosan did not show significant antibacterial effect compared with neat polycaprolactone(PCL).Inhibition rates of polycaprolactone/quaternized chitosan were 39.2%99.9%against Escherichia coli,while inhibition rate was 40.9%99.9%against Staphylococcus aureus.When quaternized chitosan(QCTS)content was up to 20%,blends exhibited 99.9%inhibition rates against both two types of bacteria.

关 键 词：CHITOSAN Antibacterial properties BLEND POLYMERS Mechanical properties Quaternized chitosan 

分 类 号：TB332[一般工业技术—材料科学与工程] TS206.4[轻工技术与工程—食品科学]