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首页> 外文期刊>Journal of Applied Polymer Science >Wettability and antibacterial assessment of chitosan containing radiation-induced graft nonwoven fabric of polypropylene-g-acrylic acid
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Wettability and antibacterial assessment of chitosan containing radiation-induced graft nonwoven fabric of polypropylene-g-acrylic acid

机译：含壳聚糖的辐射诱导聚丙烯-g-丙烯酸接枝无纺布的润湿性和抗菌性评估

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摘要

The grafting of acrylic acid (AA) onto polypropylene (PP) nonwoven fabric was induced by gamma-ray irradiation without degassing to obtain PP-g-AA-modified nonwoven fabric. Chitosan was immobilized onto the PP-g-AA-modified nonwoven fabric with 1-ethyl-3-(3-dimethyamino propyl) carbidiimide to get the chitosan-containing PP-g-AA-modified nonwoven fabric. The PP-g-AA-modified nonwoven fabrics were characterized by IR spectroscopy. In addition to the absorption peaks associated with pure PP nonwoven fabric, absorption peaks at 1700 cm(-1) (C=O) and at about 2950 cm(-1) for the COOH group were also found for the PP-g-AA-modified nonwoven fabric. The chitosan-containing PP-g-AA nonwoven fabric obtained had an absorption peak at about 1475-1580 cm(-1) (CO-NH), in addition to those of the PP-g-AA nonwoven fabric. The effects of acrylic acid grafting content and chitosan on the wettability and antibacterial assessment were investigated. The wicking time of water on the PP-g-AA-modified nonwoven fabric decreased with increasing acrylic acid grafting content and chitosan, whereas the water content on the PP-g-AA-modified nonwoven fabric increased. Because the concentration of Pseudomonas aeruginosa on the PP-g-AA-modified nonwoven fabric decreased with increasing acrylic acid grafting content and chitosan, it means that the antibacterial activity of the PP nonwoven fabric was enhanced by the modification of gamma-ray radiation-induced grafting of acrylic acid and the immobilization of chitosan onto the PP-g-AA-modified nonwoven fabric. (C) 2003 Wiley Periodicals, Inc. [References: 38]
机译：在不进行脱气的情况下，通过γ射线照射将丙烯酸（AA）接枝到聚丙烯（PP）无纺布上，从而得到PP-g-AA改性的无纺布。用1-乙基-3-（3-二甲基氨基丙基）碳二亚胺将壳聚糖固定在PP-g-AA改性的无纺布上，得到含壳聚糖的PP-g-AA改性的无纺布。通过红外光谱对PP-g-AA改性的非织造织物进行表征。除了与纯PP非织造布相关的吸收峰外，还发现PP-g-AA的COOH基在1700 cm（-1）（C = O）和大约2950 cm（-1）处的吸收峰。改性无纺布。除了PP-g-AA非织造布的那些之外，获得的含壳聚糖的PP-g-AA非织造布的吸收峰在大约1475-1580cm（-1）（CO-NH）处。研究了丙烯酸接枝量和壳聚糖对润湿性和抗菌性能的影响。 PP-g-AA改性无纺布上水的芯吸时间随丙烯酸接枝含量和壳聚糖的增加而减少，而PP-g-AA改性无纺布上的水含量增加。 PP-g-AA改性无纺布上的铜绿假单胞菌浓度随着丙烯酸接枝量和壳聚糖含量的增加而降低，这意味着通过γ射线辐照的改性可以提高PP无纺布的抗菌活性。丙烯酸的接枝和将壳聚糖固定在PP-g-AA改性的无纺布上。 （C）2003 Wiley Periodicals，Inc. [参考：38]

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