In this study, polyester fabrics having temperature and water/moisture responsive dynamic recovery function have been prepared with a nanocomposite finishing treatment composed of shape memory polyurethane (SMPU) and cellulose nanowhiskers (CNWs). The effect of CNW concentration (5-20 wt%) within SMPU-CNW nanocomposite on bagging recovery has been investigated by a test procedure, including relative humidity (RH), air, and water media at different temperatures simulating laundry and drying processes. Characterization of fabrics is conducted by FTIR, SEM and DMA studies. FTIR and SEM analyses results confirm the existence of SMPU-CNW nanocomposite on fabric. SMPU-CNW treatment significantly increases the weight and bursting strength of the fabrics, as expected. Most notably, SMPU-CNW nanocomposites enable a dynamic bagging recovery of up to 100% above Tg of SMPU in water. Results give implications of an active polyester fabric production possibility having dual responsiveness to both body physiological and environmental changes besides acceptable hand and strength.

中文翻译：

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用于智能袋装回收的温度和湿度响应纳米复合材料处理的聚酯织物

在这项研究中，采用由形状记忆聚氨酯 (SMPU) 和纤维素纳米晶须 (CNW) 组成的纳米复合整理处理制备了具有温度和水/湿响应动态恢复功能的聚酯织物。SMPU-CNW 纳米复合材料中 CNW 浓度 (5-20 wt%) 对装袋回收率的影响已通过测试程序进行了研究，包括模拟洗衣和干燥过程的不同温度下的相对湿度 (RH)、空气和水介质。织物的表征通过 FTIR、SEM 和 DMA 研究进行。FTIR 和 SEM 分析结果证实织物上存在 SMPU-CNW 纳米复合材料。正如预期的那样，SMPU-CNW 处理显着增加了织物的重量和破裂强度。最为显着地，SMPU-CNW 纳米复合材料能够实现比 SMPU 在水中的 Tg 高 100% 的动态袋装回收率。结果表明，除了可接受的手感和强度之外，活性聚酯织物生产可能性对身体生理和环境变化具有双重响应。