Abstract

In order to develop masks, wipes and other products with antibacterial and health care functions, wormwood extract/viscose spunlaced nonwoven fabric samples were prepared by changing the roll pressure and the concentration of waterborne polyurethane. Properties of the samples were characterized by SEM, FTIR, XPS, thickness gauge, gas permeability meter and bending stiffness meter. The results showed that the wormwood extract/viscose spunlaced nonwoven material had antibacterial activity against Staphylococcus aureus, and the antibacterial effect was weakened with the increase of the roll pressure. When the roll pressure was 0.05 MPa, the diameter of the inhibition zone was the largest, which reached 1.678 cm, and the antibacterial effect was not affected by the concentration of waterborne polyurethane. When the polyurethane concentration was 100 g/L, the maximum thickness of 0.713 mm was achieved at the roll pressure of 0.2 MPa, and the gas permeability of the material increased up to 1738.2 mm/s with the rise of the roll pressure. The fracture strength and bending stiffness of the wormwood extract/viscose spunlaced nonwoven fabrics were greater in the longitudinal direction than in the transverse direction. The fracture strength and bending stiffness decreased with the increase of the roll pressure, and increased first and then decreased with the increase of the binder concentration.

摘要

为了开发口罩，抹布和其他具有抗菌和保健功能的产品，通过改变辊压和水性聚氨酯的浓度来制备艾草提取物/粘胶水刺无纺布样品。通过SEM，FTIR，XPS，厚度计，透气度计和弯曲刚度计表征样品的性能。结果表明，艾草提取物/粘胶水刺无纺布材料对金黄色葡萄球菌具有抗菌活性。，并且随着辊压的增加，抗菌作用减弱。当辊压为0.05MPa时，抑制区的直径最大，达到1.678cm，并且抗菌效果不受水性聚氨酯浓度的影响。当聚氨酯浓度为100g / L时，在0.2MPa的辊压下达到0.713mm的最大厚度，并且随着辊压的升高，材料的气体渗透性增加至1738.2mm / s。艾草提取物/粘胶水刺无纺布的断裂强度和弯曲刚度在纵向上大于横向上。断裂强度和弯曲刚度随着轧制压力的增加而降低，