摘要
为了赋予纤维素制品优异的抗菌性能,使其在医疗卫生领域有较好的应用前景,采用层层自组装(LBL)技术,将ε⁃聚赖氨酸(ε⁃PL)和单宁酸(TA)交替沉积在纤维素/聚丙烯复合水刺非织造材料上,制备了(ε⁃PL⁃TA)_(n)@纤维素/聚丙烯复合非织造材料,对其表面形貌、化学结构、孔隙、抗菌性能和力学性能进行了测试分析。结果表明:组装后(ε⁃PL⁃TA)_(n)@纤维素/聚丙烯材料表面出现一些凝胶状物质,ε⁃PL和TA的FTIR特征峰出现,成功负载到纤维素/聚丙烯材料上;组装后的(ε⁃PL⁃TA)n@纤维素/聚丙烯材料纤维之间的平均孔隙明显减小,纤维平均直径、单位面积质量、断裂强力、断裂伸长率均增加;随着组装层数的增加,(ε⁃PL⁃TA)_(n)@纤维素/聚丙烯材料的断裂强力和断裂伸长率先上升后下降;当组装层数为4.5时,(ε⁃PL⁃TA)4.5@纤维素/聚丙烯复合水刺非织造材料对大肠杆菌和金黄色葡萄球菌的抑菌率分别达到99.1%和99.9%。
In order to endow cellulose product excellent antibacterial property and make them have a better application prospect in the medical and health field,ε-polyllysine(ε-PL)and tannic acid(TA)were alternately deposited on cellulose/PP composite spunlaced nonwoven materials by layer-by-layer self-assembly(LBL)technology,then(ε-PL-TA)_(n)@cellulose/PP composite nonwoven materials were prepared.Its surface morphology,chemical structure,pore diameter,antibacterial property and mechanical property were tested and analyzed.The results showed that some gelatinous substances were appeared on the surface of(ε-PL-TA)_(n)@cellulose/PP materials after assembly.FTIR characteristic peaks ofε-PL and TA were appeared.The mean pore diameter of the assembled(ε-PL-TA)_(n)@cellulose/PP materials was decreased significantly,the average fiber diameter,mass per unit area,breaking strength and breaking elongation ratio were increased.The breaking strength and breaking elongation ratio of(ε-PL-TA)_(n)@cellulose/PP materials were increased first and then decreased with the increase of assembly layers number.When the assembly layers was 4.5,the antibacterial efficiency of(ε-PL-TA)4.5@cellulose/PP composite spunlaced nonwoven material against escherichia coli and staphylococcus aureus were reached 99.1%and 99.9%,respectively.
作者
蒋佳远
孙辉
于斌
王冰冰
JIANG Jiayuan;SUN Hui;YU Bin;WANG Bingbing(Zhejiang Sci-Tech University,Hangzhou,310018,China;Zhejiang Provincial Innovation Center of Advanced Textile Technology,Shaoxing,312000,China)
出处
《棉纺织技术》
CAS
2024年第5期42-48,共7页
Cotton Textile Technology
基金
浙江省自然科学基金项目(LTGS23E030005)
浙江省“高层次特殊人才支持计划”科技创新领军人才项目(2021R52031)。
关键词
纤维素
聚丙烯
水刺非织造材料
ε⁃聚赖氨酸
单宁酸
抗菌性能
cellulose
polypropylene
spunlaced nonwoven material
ε-poly(L-lysine)
tannin
antibacterial property
