ABSTRACT

Drying of bacterial cellulose nonwoven alters its structural properties due to the collapse of its three-dimensional structure. The dried bacterial cellulose is stiffer, less flexible, brittle and cannot be used as a material for apparel. To improve these properties, this research is aimed to plasticize the bacterial cellulose nonwoven using glycerol. Statistical optimization with Box and Behnken design is performed using major influencing process parameters, such as percentage of glycerol concentration, immersion time, and drying temperature. The glycerol treatment process is optimized against textile properties like thickness, crease recovery, bending length, tensile strength, and elongation. results show that an increment in the glycerol concentration and treatment time reduces the tensile strength and increases the thickness and elongation. Bending length and crease recovery angle reduce with longer treatment time. Lower temperature drying showed positive effects of desirable properties. The statistical optimization process identified 1% of glycerol concentration, 30°C drying temperature, and 33 h of immersion time as an optimum parameter with 84% desirability. The moisture management results indicated that the glycerol treatment converted the waterproof fabric into a fast-absorbing fabric with slow drying. However, the fabrics showed a poor one-way moisture transport capacity.

摘要

由于其三维结构的坍塌，细菌纤维素非织造布的干燥会改变其结构特性。干燥后的细菌纤维素较硬，弹性较差，易碎，不能用作服装材料。为了改善这些特性，这项研究旨在使用甘油对细菌纤维素无纺布进行塑化。Box 和 Behnken 设计的统计优化使用主要影响工艺参数进行，例如甘油浓度百分比、浸泡时间和干燥温度。甘油处理工艺针对厚度、折痕恢复、弯曲长度、拉伸强度和伸长率等纺织品特性进行了优化。结果表明，甘油浓度和处理时间的增加会降低拉伸强度并增加厚度和伸长率。弯曲长度和折痕恢复角随着处理时间的延长而减少。较低温度的干燥显示出所需性能的积极影响。统计优化过程将 1% 的甘油浓度、30°C 的干燥温度和 33 小时的浸泡时间确定为具有 84% 合意性的最佳参数。水分管理结果表明，甘油处理将防水织物转化为快速吸收且干燥缓慢的织物。然而，织物显示出较差的单向水分输送能力。和 33 小时的浸没时间作为具有 84% 合意性的最佳参数。水分管理结果表明，甘油处理将防水织物转化为快速吸收且干燥缓慢的织物。然而，织物显示出较差的单向水分输送能力。和 33 小时的浸没时间作为具有 84% 合意性的最佳参数。水分管理结果表明，甘油处理将防水织物转化为快速吸收且干燥缓慢的织物。然而，织物显示出较差的单向水分输送能力。