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Intumescent Flame-Retardant and Self-Healing Superhydrophobic Coatings on Cotton Fabric
ACS Nano ( IF 15.8 ) Pub Date : 2015-03-20 00:00:00 , DOI: 10.1021/acsnano.5b00121
Shanshan Chen 1 , Xiang Li 1 , Yang Li 1 , Junqi Sun 1
Affiliation  

Flame-retardant and self-healing superhydrophobic coatings are fabricated on cotton fabric by a convenient solution-dipping method, which involves the sequential deposition of a trilayer of branched poly(ethylenimine) (bPEI), ammonium polyphosphate (APP), and fluorinated-decyl polyhedral oligomeric silsesquioxane (F-POSS). When directly exposed to flame, such a trilayer coating generates a porous char layer because of its intumescent effect, successfully giving the coated fabric a self-extinguishing property. Furthermore, the F-POSS embedded in cotton fabric and APP/bPEI coating produces a superhydrophobic surface with a self-healing function. The coating can repetitively and autonomically restore the superhydrophobicity when the superhydrophobicity is damaged. The resulting cotton fabric, which is flame-resistant, waterproof, and self-cleaning, can be easily cleaned by simple water rinsing. Thus, the integration of self-healing superhydrophobicity with flame retardancy provides a practical way to resolve the problem of washing durability of the flame-retardant coatings. The flame-retardant and superhydrophobic fabric can endure more than 1000 cycles of abrasion under a pressure of 44.8 kPa without losing its flame retardancy and self-healing superhydrophobicity, showing potential applications as multifunctional advanced textiles.

中文翻译:

棉织物上的膨胀型阻燃自修复超疏水涂料

通过一种方便的溶液浸渍方法在棉织物上制备阻燃和自修复的超疏水涂料,该方法包括依次沉积三层支链的聚亚乙基亚胺(bPEI),聚磷酸铵(APP)和氟化癸基多面体低聚倍半硅氧烷(F-POSS)。当直接暴露于火焰中时,这种三层涂层由于其膨胀作用而产生多孔炭层,从而成功地使涂覆的织物具有自熄性。此外,嵌入棉织物和APP / bPEI涂层的F-POSS可以产生具有自修复功能的超疏水表面。当超疏水性被破坏时,该涂层可以重复且自主地恢复超疏水性。所得的棉织物具有阻燃性,防水性和自洁性,只需用水冲洗即可轻松清洁。因此,自修复超疏水性与阻燃性的结合提供了解决阻燃涂层洗涤耐久性问题的实用方法。阻燃和超疏水性织物在44.8 kPa的压力下可承受1000多次磨损,而不会失去其阻燃性和自修复超疏水性,显示出作为多功能高级纺织品的潜在应用。
更新日期:2015-03-20
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