摘要
采用纳米银、纳米氧化锌、抗氧化剂168与低密度聚乙烯(LDPE)制备塑料片材,通过贴膜法对片材进行抗菌性实验。利用正交试验设计和方差分析处理,研究多因素对塑料片材的抗菌性能的影响。结果表明,在研究设置的水平范围内,纳米银、纳米氧化锌、抗氧化剂168对塑料片材的抗菌性均无显著影响,可能是纳米银、纳米氧化锌颗粒在塑料基体内难于发生迁移,从而对片材表面的抗菌性影响不大;而抗氧化剂168本身的抗菌性并不明显。研究还发现仅含抗氧化剂168的片材抗菌率达到90. 41%,推测是其降解产物具有抗菌性。
Nano-silver, nano-zinc oxide and antioxidant 168 were mixed into low-density polyethylene （LDPE） to prepare plastic sheets. The anti-microbial properties of the sheets were tested by film coating method. The effects of multiple factors on the antibacterial properties of plastic sheets were studied by orthogonal test design and variance analysis. Results show that within the scope of the research set level, nano-silver, nano-zinc oxide and antioxidant 168 have no significant effect on antimicrobial properties of plastic sheet. It is probably because nano-silver and nano-zinc oxide particles in the plastic substrate are difficult to migrate, and have little effects on the antimicrobial properties of the sheet surface; and the antimicrobial activity of antioxidant 168 itself is not obvious. The study also found that the antibacterial rate of LDPE sheets containing only anti-oxidant 168 reached to 90. 41% , which was supposed to be antibacterial function of degradation products of anti-oxidant 168.
作者
宋洪泽
林勤保
吴恩玉
陈坤
SONG Hong-ze, LIN Qin-bao, WU En-yu, CHEN Kun(Key Laboratory of Product Packaging and Logistics, Packaging Engineering Institute, Jinan University, Zhuhai 519070, China)
出处
《塑料工业》
CAS
CSCD
北大核心
2018年第10期115-118,共4页
China Plastics Industry
基金
国家自然科学基金项目(21277085)
广东省自然科学基金项目(2015A030313329)
关键词
纳米材料
正交试验
低密度聚乙烯
塑料片材
抗菌性
Nanomaterial
Orthogonal Experiment
Low-density Polyethylene
Plastic Sheet
Antibacterial Property
