摘要
以壳聚糖和海因为原料合成了壳聚糖-海因(CS-HDH),并通过氯化处理得到氯化壳聚糖-海因(CS-HDH-Cl),以合成的CS-HDH-Cl为添加剂制备具有亲水性、抗污染性能和抑菌性能的聚偏氟乙烯(PVDF)膜.结果表明,添加CS-HDH-Cl可改善PVDF膜的亲水性能,随着添加剂质量分数增加至0.9%,渗透通量高达351.2 L/(m^(2)·h);改性后的PVDF/CS-HDH-Cl膜通量恢复率可达90.9%;当氧化态氯含量达0.69 mmol/g,PVDF/CS-HDH-Cl超滤膜对大肠杆菌和金黄色葡萄球菌的抑菌率分别为98.7%和98.9%.
CS-HDH was simply synthesized by chitosan and hine,and then CS-HDH-Cl was finally obtained by chlorination.Polyvinylidene fluoride(PVDF)membranes prepared by adding CS-HDH-Cl have good advantages of hydrophilic,anti-pollution and antibacterial properties.The results showed that the addition of CS-HDH-Cl improved the hydrophilicity of PVDF membranes.With the addition of CS-HDH-Cl mass increased to 0.9%,the permeation flux was up to 351.2 L/(m^(2)·h).Flux recovery rate(FRR)of PVDF/CS-HDH-Cl membrane could achieves 90.9%.When the oxidative chlorine content increased to 0.69 mmol/g,M-4 showed the utmost sterilization ratios of 98.7%and 98.9%against E.coli and S.aureus,respectively.
作者
徐佳峰
王函
陈艳
郎万中
XU Jiafeng;WANG Han;CHEN Yan;LANG Wanzhong(The Education Ministry Key Lab of Resource Chemistry,College of Chemistry and Materials Science,Shanghai Normal University,Changzhou 213164,China)
出处
《膜科学与技术》
CAS
CSCD
北大核心
2021年第6期103-109,117,共8页
Membrane Science and Technology
基金
上海绿色能源化工工程技术研究中心项目(18DZ2254200)。
关键词
聚偏氟乙烯膜
卤胺
壳聚糖
抗菌膜
polyvinylidene fluoride membrane
halamine
chitosan
antibacterial membrane
