TY - JOUR PY - 2015// TI - Intumescent flame-retardant and self-healing superhydrophobic coatings on cotton fabric JO - ACS nano A1 - Chen, Shanshan A1 - Li, Xiang A1 - Li, Yang A1 - Sun, Junqi SP - 4070 EP - 4076 VL - 9 IS - 4 N2 - Flame-retardant and self-healing superhydrophobic coatings are fabricated on cotton fabrics 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 silsequioxane (F-POSS). When directly exposed to flame, such a trilayer coating generates a porous char layer because of its intumescent effect, successfully endowing the coated fabric with self-extinguishing property. Meanwhile, the preserved F-POSS in cotton fabrics and APP/bPEI coating produce a superhydrohobic surface with self-healing function. The coating can repetitively and autonomically restore superhydrophobicity once the superhydrophobicity is damaged. The resultant cotton fabrics, which are flame resistant, waterproof and self-cleaning, can be readily cleaned with simple water rinsing. Thus, the integration of self-healing superhydrophobicity with flame-retardancy provides a practical way to solve the problem regarding the washing durability of the flame-retardant coatings. The flame-retardant and superhydrophobic fabrics 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.

Language: en

LA - en SN - 1936-0851 UR - http://dx.doi.org/10.1021/acsnano.5b00121 ID - ref1 ER -