基于生物质模板制备ZIF-8及抗菌性能  

Bio-template synthesis and antibacterial performance of ZIF-8

作　　者：徐群娜 李娇娇 丁杨 马建中 李鹏妮 XU Qunna;LI Jiaojiao;DING Yang;MA Jianzhong;LI Pengni(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China;National Demonstration Center for Experimental Light Chemistry Engineering Education,Xi'an 710021,Shaanxi,China;Xi'an Key Laboratory of Green Chemicals and Functional Materials,Xi'an 710021,Shaanxi,China;Sinolight Inspection&Certification Jinjiang Co.,Ltd.,Jinjiang 362200,Fujian,China;Tongxiang Affairs Center of Quality and Technical Supervision,Tongxiang 314500,Zhejiang,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021 [2]轻化工程国家级实验教学示范中心,陕西西安710021 [3]西安市绿色化学品与功能材料重点实验室,陕西西安710021 [4]中轻检验认证有限(晋江)公司,福建晋江362200 [5]桐乡市质量技术监督事务中心,浙江桐乡314500

出　　处：《精细化工》2023年第7期1470-1477,1496,共9页Fine Chemicals

基　　金：国家自然科学基金面上项目(22078185、22278258)。

摘　　要：为赋予皮革表面优异的抗菌性,以己内酰胺(CPL)改性酪素(CA)(CA-CPL)胶束为模板原位生长金属有机骨架化合物,类沸石咪唑酯骨架(ZIF-8),得到了CA-CPL@ZIF-8,并将其应用于皮革涂饰中。采用FTIR、XRD、SEM、TEM、N2吸附-脱附对样品进行了表征。对涂饰后皮革的抗菌、力学和卫生性能进行了测试。结果表明,通过调整生物质模板CA-CPL的尺寸与形貌,成功生长出晶体结构完整的CA-CPL@ZIF-8。随着CA-CPL@ZIF-8添加量(以CA-CPL质量计,下同)的增加,涂饰后皮革对大肠杆菌和金黄色葡萄球菌产生了明显的抗菌效果,力学性能和卫生性能相应提升;当其添加量为0.8%时,涂饰后皮革对金黄色葡萄球菌的抑菌圈为4 mm,抗张强度和断裂伸长率分别可达6.32 MPa和56%;当其添加量为0.5%时,透气性和透水汽性可达1522 mL/(cm^(2)·h)和353 mg/(10 cm^(2)·24 h)。CA-CPL@ZIF-8 were synthesized from in situ growth of metal-organic framework compound zeolitic imidazolate framework(ZIF-8)on caprolactam(CPL)-modified casein(CA)(CA-CPL)micelle,and then applied to leather finishing for antibacterial performance.The CA-CPL@ZIF-8 obtained was then characterized by FTIR,XRD,SEM,TEM,and N2 adsorption-desorption,followed by investigation on the antibacterial,mechanical and hygienic properties of the finished leather.The results showed that,by adjusting the size and morphology of the biomass template CA-CPL,CA-CPL@ZIF-8 with complete crystal structure was successfully synthesized.As the amount of CA-CPL@ZIF-8 added increased(based on the mass of CA-CPL,the same below),the finished leather exhibited significant antibacterial effect on E.coli and S.aureus,and improved mechanical strength and hygienic performance as well.The finished leather with 0.8%CA-CPL@ZIF-8 displayed an inhibition zone against S.aureus of 4 mm,tensile strength and elongation at break of 6.32 MPa and 56%,respectively,while that with 0.5%CA-CPL@ZIF-8 showed air permeability and water moisture permeability of up to 1522 mL/(cm^(2)·h)and 353 mg/(10 cm^(2)·24 h),respectively.

关 键 词：生物质 模板 ZIF-8 皮革涂饰 抗菌性能 功能材料 

分 类 号：TS529.5[轻工技术与工程—皮革化学与工程]