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摘要
为克服传统纸纱成本高、易生菌霉变、化学涂层对手感和透气性影响等问题,从纤网成型制备纸纱原纸的角度出发,设计并构建以木浆、细菌纤维素(BC)与钠基蒙脱土(Na-MMT)为基体的复合纤维膜,并通过添加不同含量的阳离子聚丙烯酰胺(CPAM),以提升其结构稳定性和物理性能。利用扫描电镜、傅里叶红外光谱仪、热重分析仪、X射线能谱仪等对复合纤维膜进行表征,通过耐折度、耐撕裂、透气透湿实验对不同含量CPAM复合纸张力学性能、舒适性进行测试。结果表明:0.025% CPAM为最优添加比例,该条件下,纸张定量为37.7g/m2,抗张指数达24.933N·m/g,耐折度为1.595,耐撕裂指数为22.496mN·m2/g,综合力学性能表现优异。抗菌实验结果表明,材料对金黄色葡萄球菌的抑菌率达99.99%,对大肠杆菌的抑菌率为47.83%,表现出优异的抗菌性能。
Abstract
To address the limitations of traditional paper yarns,such as high production costs,susceptibility to microbial contamination,and the adverse effects of chemical coatings on hand feel and breathability,we designed and constructed a composite fiber membrane from a web-forming perspective using wood pulp,bacterial cellulose (BC),and sodium montmorillonite(Na-MMT) as the primary matrix.To enhance structural stability and physical properties,varying concentrations of cationic polyacrylamide (CPAM) were incorporated during the preparation process.The composite membranes were characterized by scanning electron microscopy (SEM),Fourier-transform infrared spectroscopy (FT-IR),thermogravimetric analysis (TG),and energy-dispersive X-ray spectroscopy (EDS).Mechanical and comfort-related properties were evaluated through fold endurance,tear resistance,air permeability,and moisture vapor transmission tests.The results indicated that a CPAM concentration of 0.025wt% yielded the sample with the best overall performance,achieving a basis weight of 37.7g/m2,a tensile index of 24.933N·m/g,a fold endurance of 1.595,and a tear resistance index of 22.496mN·m2/g.The results of antibacterial assays demonstrated that the material achieved an inhibition rate of 99.99% against Staphylococcus aureus and an inhibition rate of 47.83% against Escherichia coli,indicating outstanding antibacterial performance.
关键词
木浆
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细菌纤维素
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复合纤维膜
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纸纱原纸
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抗菌
Key words
wood pulp
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bacterial cellulose
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composite fiber membrane
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paper yarn base paper
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antibacterial
生物基抗菌纸复合材料的制备及性能[J].
化工新型材料, 2026, 54(5): 244-250 DOI:10.19817/j.cnki.issn1006-3536.2026.05.032
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