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摘要
以纳米SiOx粉体为载体,通过共价接枝修饰,制备出烷基化聚乙烯亚胺接枝SiOx纳米抗菌剂。通过红外光谱、热失重等技术对样品进行表征,实验结果表明,纳米SiOx粉体已经成功接枝上了有机高分子基团,制备的烷基化聚乙烯亚胺接枝SiOx纳米抗菌剂对大肠埃希氏菌的最低抑菌浓度(MIC值)为400mg/L,对金黄色葡萄球菌的MIC值为200mg/L,具有较强的抗菌能力,并且能耐受较高的温度。此抗菌粉体可以添加到塑料等材料中,从而制备相应的抗菌材料来。
Abstract
With nanometer SiOx powder as the carrier,alkylated polyethyleneimine grafted SiOx nano-antimicrobial agent was prepared by covalent grafting modification.By FT-IR,and TG to characterize the sample,the results showed that:the nano-SiOx powder was successfully grafted with organic polymer group,the prepared alkylated polyethyleneimine grafted SiOx nano-antimicrobial agent had the MIC of 400mg/L for Escherichia coli and 200mg/L for Staphylococcus aureus.It had strong antimicrobial activity,and can tolerated high temperature.The antimicrobial powder can be added to some materials such as plastics to prepare antimicrobial materials for use.
关键词
烷基化
/
接枝
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聚乙烯亚胺
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纳米SiOx
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抗菌剂
Key words
alkylate
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graft
/
polyethyleneimine
/
nano-SiOx
/
antimicrobial agent
烷基化聚乙烯亚胺接枝SiOx纳米抗菌剂的制备及其性能研究[J].
化工新型材料, 2021, 49(4): 119-121 DOI:10.19817/j.cnki.issn1006-3536.2021.04.026
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基金资助
2019江苏高校“青蓝工程”资助项目;江苏省教育科学“十三五”规划青年专项重点资助课题(C-a/2016/03/03);中国职业技术教育学会课题(编号201610Y33);2016年江苏省南通市应用基础研究-工业创新科技计划项目(GY12016052);江苏省南通市226高层次人才培养工程(通委人才[2018]2号)
