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Efficient scald-preventing enabled by robust polyester fabrics with hot water repellency and water impalement resistance.
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-01-20 , DOI: 10.1016/j.jcis.2020.01.067 Ning Tian 1 , Jinfei Wei 2 , Yabin Li 2 , Bucheng Li 2 , Junping Zhang 1
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2020-01-20 , DOI: 10.1016/j.jcis.2020.01.067 Ning Tian 1 , Jinfei Wei 2 , Yabin Li 2 , Bucheng Li 2 , Junping Zhang 1
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Scald is a kind of common injury for human beings caused by contacting with hot liquids and/or vapor. Herein, we report the preparation of an advanced fabric for efficient scald-preventing by dip-coating a common polyester fabric in a hexadecyl polysiloxane (HD-POS) aqueous suspension, which was synthesized via a waterborne and nonfluorinated approach. Thanks to the hierarchical micro-/nanostructure of the fabric, stable bonding of the compact HD-POS layer on the polyester microfibers, and inherent high stability and elasticity of HD-POS, the fabric features excellent hot water repellency even for dynamic boiling water with a high water impalement resistance of up to 5 grades according to the water repellency grade test. In addition, the fabric shows extraordinary mechanical stability, e.g., its superhydrophobicity remained nearly unchanged after 200 cycles washing, 10,000 cycles Martindale abraison or 1000 cycles 100% streching and releasing. It also exhibits superior environmental robustness (117 d outdoor test) and chemical robustness (7 d immersion in 1 M HCl or NaOH solution, 60 min ultrosonication in both water and anchol immersion) in various harsh conditions. By applying as an advanced fabric for efficient scald-preventing, it can avoid direct contact of hot water and vapor with rat skin by preventing penetration of hot water and most of vapor. It could also significantly reduce heat conduction and radiation to rat skin by reducing contact time of hot water with the fabric (decreased 10 s more quickly than the pristine fabric to 60 °C when encountering 100 mL of 92 °C water). As a result, the fabric in contact with the skin keeps dry and the fabric temperature is much lower than that of the pristine fabric once encountering hot water, thus showing great potentials as an advanced fabric for efficient scald-preventing applications.
中文翻译：
坚固的聚酯纤维织物具有拒水性和抗水渗透性，可有效防止烫伤。
烫伤是人与热的液体和/或蒸气接触所引起的一种常见伤害。在本文中，我们报告了通过在十六烷基聚硅氧烷（HD-POS）水性悬浮液中浸涂普通聚酯织物来制备可有效防止烫伤的高级织物的方法，该织物是通过水性和非氟化方法合成的。得益于织物的分层微/纳米结构，紧密的HD-POS层在聚酯微纤维上的稳定粘合以及HD-POS固有的高稳定性和弹性，该织物即使在动态沸腾的水中也具有出色的拒水性。根据拒水等级测试，高达5级的高耐水刺性能。此外，该织物还显示出非凡的机械稳定性，例如，在200次洗涤，10,000次Martindale磨损或1000次100％拉伸和释放后，其超疏水性几乎保持不变。在各种恶劣条件下，它还具有出色的环境稳定性（室外测试117天）和化学稳定性（在1 M HCl或NaOH溶液中浸泡7 d，在水中和苯酚中超声60分钟超声处理）。通过作为一种能有效防止烫伤的高级织物，它可以防止热水和大部分蒸汽渗透，从而避免热水和蒸汽与大鼠皮肤直接接触。它还可以通过减少热水与织物的接触时间（当遇到100 mL 92°C的水时，比原始织物下降到60°C的速度更快地降低10 s）来显着减少对大鼠皮肤的热传导和辐射。结果是，
更新日期：2020-01-21
中文翻译：
坚固的聚酯纤维织物具有拒水性和抗水渗透性，可有效防止烫伤。
烫伤是人与热的液体和/或蒸气接触所引起的一种常见伤害。在本文中，我们报告了通过在十六烷基聚硅氧烷（HD-POS）水性悬浮液中浸涂普通聚酯织物来制备可有效防止烫伤的高级织物的方法，该织物是通过水性和非氟化方法合成的。得益于织物的分层微/纳米结构，紧密的HD-POS层在聚酯微纤维上的稳定粘合以及HD-POS固有的高稳定性和弹性，该织物即使在动态沸腾的水中也具有出色的拒水性。根据拒水等级测试，高达5级的高耐水刺性能。此外，该织物还显示出非凡的机械稳定性，例如，在200次洗涤，10,000次Martindale磨损或1000次100％拉伸和释放后，其超疏水性几乎保持不变。在各种恶劣条件下，它还具有出色的环境稳定性（室外测试117天）和化学稳定性（在1 M HCl或NaOH溶液中浸泡7 d，在水中和苯酚中超声60分钟超声处理）。通过作为一种能有效防止烫伤的高级织物，它可以防止热水和大部分蒸汽渗透，从而避免热水和蒸汽与大鼠皮肤直接接触。它还可以通过减少热水与织物的接触时间（当遇到100 mL 92°C的水时，比原始织物下降到60°C的速度更快地降低10 s）来显着减少对大鼠皮肤的热传导和辐射。结果是，
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