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Colorless Silk/Copper Sulfide Hybrid Fiber and Fabric with Spontaneous Heating Property under Sunlight.
Biomacromolecules ( IF 5.5 ) Pub Date : 2020-03-11 , DOI: 10.1021/acs.biomac.0c00170 Haipeng Wang 1 , Qinglin Dong 1 , Jinrong Yao 1 , Zhengzhong Shao 1 , Jimei Ma 2 , Xin Chen 1
Biomacromolecules ( IF 5.5 ) Pub Date : 2020-03-11 , DOI: 10.1021/acs.biomac.0c00170 Haipeng Wang 1 , Qinglin Dong 1 , Jinrong Yao 1 , Zhengzhong Shao 1 , Jimei Ma 2 , Xin Chen 1
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With the increasing demand for comfort, thinness, and warmth of fabrics, various functional fibers have emerged. However, natural silkworm silk, as one of the most widely used natural fibers in textile, faces the issue that it cannot be modified during the spinning process like synthetic fibers. Herein, copper sulfide nanoparticles (CuS NPs) with a near-infrared (NIR) absorption property were first prepared by using regenerated silk fibroin (RSF) as the biological template. Then, trace CuS NPs prepared in RSF solution (no more than 100 ppm) were added into the RSF spinning dope to prepare colorless RSF/CuS hybrid fibers via wet-spinning process. The tensile test of the RSF/CuS hybrid fibers showed that the toughness was improved with the addition of CuS NPs, which completely met the requirements of textile development. The temperature of RSF/CuS hybrid fiber bundles could increase 18.5 °C within 3 min under 1064 nm laser irradiation with power density of 1.0 W/cm2. Finally, these RSF/CuS hybrid fiber bundles were woven into silk fabric or embroidered on a cotton fabric. Under the simulated sunlight, the temperature of RSF/CuS fabric could increase to more than 40 °C from room temperature. Also, as per the infrared images, the pattern of embroidery displayed a significant difference in temperature increase as compared to cotton matrix. Based on these results, an almost colorless RSF/CuS hybrid fiber that can be mass produced by wet spinning may have great potential in the fabrication of dyeable, light, and comfortable silk functional fabric with spontaneous heating characteristics under sunlight.
中文翻译：
阳光下自发加热的无色丝/铜硫化杂化纤维和织物。
随着对织物舒适度，薄度和保暖性的需求不断增加，出现了各种功能性纤维。但是，天然蚕丝作为纺织品中使用最广泛的天然纤维之一，面临着无法在纺丝过程中像合成纤维那样进行改性的问题。在此，首先通过使用再生丝素蛋白（RSF）作为生物模板制备具有近红外（NIR）吸收特性的硫化铜纳米颗粒（CuS NPs）。然后，将在RSF溶液中制备的痕量CuS NP（不超过100 ppm）添加到RSF纺丝原液中，通过湿纺工艺制备无色RSF / CuS杂化纤维。RSF / CuS杂化纤维的拉伸试验表明，添加CuS NPs可以提高韧性，完全可以满足纺织品开发的要求。2。最后，将这些RSF / CuS杂化纤维束编织成丝织物或绣在棉织物上。在模拟阳光下，RSF / CuS织物的温度可能从室温升高到40°C以上。另外，根据红外图像，绣花图案与棉基质相比在温度升高方面显示出明显的差异。基于这些结果，可以通过湿法纺丝大量生产的几乎无色的RSF / CuS杂化纤维在制造具有可在阳光下自发加热的可染色，轻巧和舒适的丝绸功能性织物方面具有巨大的潜力。
更新日期：2020-04-23
中文翻译：
阳光下自发加热的无色丝/铜硫化杂化纤维和织物。
随着对织物舒适度，薄度和保暖性的需求不断增加，出现了各种功能性纤维。但是，天然蚕丝作为纺织品中使用最广泛的天然纤维之一，面临着无法在纺丝过程中像合成纤维那样进行改性的问题。在此，首先通过使用再生丝素蛋白（RSF）作为生物模板制备具有近红外（NIR）吸收特性的硫化铜纳米颗粒（CuS NPs）。然后，将在RSF溶液中制备的痕量CuS NP（不超过100 ppm）添加到RSF纺丝原液中，通过湿纺工艺制备无色RSF / CuS杂化纤维。RSF / CuS杂化纤维的拉伸试验表明，添加CuS NPs可以提高韧性，完全可以满足纺织品开发的要求。2。最后，将这些RSF / CuS杂化纤维束编织成丝织物或绣在棉织物上。在模拟阳光下，RSF / CuS织物的温度可能从室温升高到40°C以上。另外，根据红外图像，绣花图案与棉基质相比在温度升高方面显示出明显的差异。基于这些结果，可以通过湿法纺丝大量生产的几乎无色的RSF / CuS杂化纤维在制造具有可在阳光下自发加热的可染色，轻巧和舒适的丝绸功能性织物方面具有巨大的潜力。
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