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Green fabrication of flame retardant and superhydrophobic materials with application in oil-water separation
Polymers for Advanced Technologies ( IF 3.1 ) Pub Date : 2021-08-30 , DOI: 10.1002/pat.5487
Mengnan Qu 1 , Zhanxia Luo 1 , Rong Wang 1 , Dan He 1 , Yajie Pang 1 , Fan Shi 1 , Wenchao Sun 1 , Lei Peng 1 , Jinmei He 1
Affiliation  

Flame-retardant materials with superwettability have received broad attention and research in the field of oil-water separation in recent years. However, it remains big challenging to fabricate flame-retardant and superwettable materials in terms of the complexity and environmental performance. Herein, a non-fluorinated coating containing flame retardants phytic acid/3-aminopropyltriethoxysilane and silica micron-particle/hexadecyltrimethoxysilane was developed. The performance of the coated samples is evaluated by thermogravimetric analysis, limiting oxygen index (LOI), cone calorimetry, and, water contact angle tests. The percentage of residue at 800°C for coated samples (cotton fabric, absorbent cotton, filter paper, cottonwood, packing cardboard) was reduced by 47.6%, 42.2%, 45.5%, 53.2%, and 50.8%, respectively. However, their control samples reduced by 87.4%, 84.6%, 88.4%, 77.2%, and 72.2%, respectively, under the same conditions. The percentage of residue at 800°C for coated samples is much higher than that of the pristine samples. The coated cotton fabric showed excellent flame retardant and superhydrophobic properties. Specifically, the coated cotton fabrics exhibited self-extinguishing properties in the flame burning tests, and the LOI increased significantly from 17.7% to 50.8%. Furthermore, the peak heat release rate and the total heat release values of the coated cotton fabric were significantly declined by 83.4% and 83.6% compared to untreated cotton fabrics, respectively. Additionally, due to its super-hydrophobic surface, the coated cotton fabric exhibited super-strong self-cleaning ability and waterproof performance. The coated cotton fabrics also showed good organic solvent/oil and water separation capabilities while reducing the risk of fire.

中文翻译:

应用于油水分离的阻燃超疏水材料的绿色制备

近年来,具有超润湿性的阻燃材料在油水分离领域受到了广泛的关注和研究。然而,就复杂性和环境性能而言,制造阻燃和超润湿材料仍然是一个巨大的挑战。在此,开发了一种含有阻燃剂植酸/3-氨基丙基三乙氧基硅烷和二氧化硅微米颗粒/十六烷基三甲氧基硅烷的非氟化涂料。涂层样品的性能通过热重分析、极限氧指数 (LOI)、锥形量热法和水接触角测试进行评估。涂层样品(棉织物、脱脂棉、滤纸、三叶杨、包装纸板)在 800°C 下的残留百分比分别降低了 47.6%、42.2%、45.5%、53.2% 和 50.8%。然而,在相同条件下,他们的对照样品分别减少了87.4%、84.6%、88.4%、77.2%和72.2%。涂层样品在 800°C 下的残留百分比远高于原始样品。涂层棉织物表现出优异的阻燃和超疏水性能。具体而言,涂层棉织物在火焰燃烧测试中表现出自熄性,LOI 从 17.7% 显着增加到 50.8%。此外,与未经处理的棉织物相比,涂层棉织物的峰值热释放率和总热释放值分别显着下降了 83.4% 和 83.6%。此外,由于其超疏水表面,涂层棉织物表现出超强的自洁能力和防水性能。
更新日期:2021-11-04
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