抑菌型卫生用吸水材料的制备及性能研究

Study on Preparation and Performance of Antimicrobial Hygiene Absorbent Materials

关键词:  改性纤维  聚苹果酸  抑菌性能  卫生用吸水材料

Key Words:modified fiber  poly malic acid  antibacterial properties  hygroscopic materials for hygiene

摘要:本研究通过胶体磨机械处理TEMPO氧化纤维素制得改性纤维(CRF),与丙烯酸(AA)、聚苹果酸(Poly malic acid,PMLA)和硝酸银(AgNO3)在紫外光下聚合制备出一种具有良好抑菌性能的卫生用新型吸水材料(CRF-PMLA-Ag-SAM),并进行性能表征。结果表明,CRF、AA、PMLA成功发生共聚反应,且Ag元素以Ag+和Ag0两种价态存在；在CRF含量为15%时,1%PMLA和1%AgNO3的添加量制得的CRF-PMLA-Ag-SAM对生理盐水具有良好的吸收保持倍率,吸水倍率为128g·g-1,保水倍率为76g·g-1；对金黄色葡萄球菌和大肠杆菌具有明显抑制作用,抑菌圈直径分别为9.5mm及9.8mm。

Abstract:In this study, modified fiber (CRF) was prepared by mechanical treatment of tempo oxidized cellulose with colloidal mill, and a new type of sanitary water absorbing material (CRF-PMLA-Ag-SAM) with good antibacterial properties was prepared by polymerization with acrylic acid (AA), poly malic acid (PMLA) and silver nitrate (AgNO3) under UV light. The results showed that CRF, AA and PMLA were successfully copolymerized, and Ag existed in two valence states of Ag+ and Ag0; At the content of 15% CRF, the CRF-PMLA-Ag-SAM prepared with the addition of 1%PMLA and 1%AgNO3 has good absorption retention rate for normal saline, with water absorption rate of 128g·g-1 and water retention rate of 76 g·g-1；It has obvious inhibitory effect on Staphylococcus aureus and Escherichia coli, and the diameter of inhibition zone is 9.5mm and 9.8mm respectively.