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首页> 外文期刊>Journal of Applied Polymer Science >Eco-friendly grafting of natural biopolymer chitosan onto acylated wool fabrics using ultrasonic and study its properties
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Eco-friendly grafting of natural biopolymer chitosan onto acylated wool fabrics using ultrasonic and study its properties

机译：用超声波对天然生物聚合物壳聚糖进行生态友好的接枝到酰化羊毛织物上并研究其性能

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摘要

The use of ultrasonic for accelerating the chemical and physical processes of wool has gained high importance. This study aims to develop a method for reducing the energy and material consumption and decreasing fiber damage. Ultrasonic equipment (20 kHz) was used for grafting chitosan to wool fabric. Experiments were carried out under different times and chitosan concentration. The results showed using this technique decreases the time required for grafting chitosan onto wool which is less than the other procedures. Differential scanning calorimetry, Fourier transform infra-red, and weight gain analyses provided evidence that chitosan was grafted onto the acylated wool through the formation of new covalent bonds in a short time. Scanning electron microscope was used to study the morphology of wool samples before and after modification. The dyeing of the chitosan grafted-acylated wool fabrics indicates higher dye ability and lower shrinkage compared to the acylated and raw wool samples. The findings of this study support the potential of using ultrasonic as a friendly environment method for grafting chitosan onto wool with enhanced dye ability and reduced shrinkage properties. The grafted samples showed good antibacterial properties against Staphylococcus aureus as gram-positive and Pseudomonas aeruginosa as gram negative bacteria.
机译：使用超声波促进羊毛的化学和物理过程已变得非常重要。这项研究旨在开发一种减少能源和材料消耗并减少纤维损坏的方法。使用超声波设备（20 kHz）将壳聚糖接枝到羊毛织物上。在不同的时间和壳聚糖浓度下进行实验。结果表明，使用该技术减少了将壳聚糖接枝到羊毛上所需的时间，比其他步骤要少。差示扫描量热法，傅立叶变换红外和重量增加分析提供了证据，证明壳聚糖通过在短时间内形成新的共价键而嫁接到酰化的羊毛上。扫描电子显微镜用于研究羊毛样品改性前后的形态。与酰化和原毛样品相比，壳聚糖接枝酰化羊毛织物的染色显示出更高的染色能力和更低的收缩率。这项研究的发现支持使用超声波作为一种友好的环境方法将壳聚糖接枝到羊毛上的可能性，该方法具有增强的染色能力和降低的收缩性能。嫁接的样品对革兰氏阳性的金黄色葡萄球菌和革兰氏阴性细菌的铜绿假单胞菌均显示出良好的抗菌性能。

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