Abstract:Cotton fabric, as an important material, is suffering from some defects such as flammability, easy pollution and so on; therefore, it is important to make a flame-retardant and superhydrophobic modification on cotton fabric. In this study, we demonstrated a preparation of high-efficiency flame-retardant and superhydrophobic cotton fabric with double coated construction by a simple multi-step dipping. First, the fabric was immersed in branched poly(ethylenimine) (BPEI) and ammonium polyphosphate (APP) water dis… Show more
“…Therefore, the TG curve was similar to the CS/CNF one, but showed the lowest temperature (255 °C) of the fastest decomposition rate due to the thermal decomposition of APP and BPEI. After 600 °C, the CS/CNF and CS/CNF/APP/BPEI composite films had higher residual mass (28% and 26.1%, respectively) than that of the pure one, suggesting the addition of CNF, APP and BPEI was beneficial to the thermal stability of the CS-based composite film [ 25 ].…”
Section: Resultsmentioning
confidence: 99%
“…Analogously, BPEI, APP and fluorodecyl polyhedral polysiloxane were deposited on the surface of the cotton fabric by simple layer-by-layer self-assembly; the resulting cotton showed excellent flame retardant properties, superhydrophobicity and self-healing properties [ 24 ]. Our research group also achieved a good flame retardant effect on the cotton fabrics through the introduction of both APP and BPEI [ 25 ].…”
To improve on the poor strength and flame retardancy of a chitosan (CS)-based functional film, cellulose nanofiber (CNF) was taken as the reinforced material and both ammonium polyphosphate (APP) and branched polyethyleneimine (BPEI) as the flame-retardant additives in the CS matrix to prepare the CS/CNF/APP/BPEI composite film by simple drying. The resulting composite film showed good mechanical strength, with a tensile strength reaching 71.84 Mpa due to the high flexibility of CNF and the combination of CS, CNF and BPEI through strong hydrogen bonding interactions. The flame retardant-performance of the composite film greatly enhanced the limit oxygen index (LOI), up to 32.7% from 27.6% for the pure film, and the PHRR intensity decreased to 28.87 W/g from 39.38% in the micro-scale combustion calorimetry (MCC) test due to the ability of BPEI to stimulate the decomposition of APP, releasing non-flammable gases such as CO2, N2, NH3, etc., and forming a protective phosphating layer to block the entry of O2. Based on the good flame retardancy, mechanical strength and transparency, the CS/CNF/APP/BPEI composite film has a great potential for future applications.
“…Therefore, the TG curve was similar to the CS/CNF one, but showed the lowest temperature (255 °C) of the fastest decomposition rate due to the thermal decomposition of APP and BPEI. After 600 °C, the CS/CNF and CS/CNF/APP/BPEI composite films had higher residual mass (28% and 26.1%, respectively) than that of the pure one, suggesting the addition of CNF, APP and BPEI was beneficial to the thermal stability of the CS-based composite film [ 25 ].…”
Section: Resultsmentioning
confidence: 99%
“…Analogously, BPEI, APP and fluorodecyl polyhedral polysiloxane were deposited on the surface of the cotton fabric by simple layer-by-layer self-assembly; the resulting cotton showed excellent flame retardant properties, superhydrophobicity and self-healing properties [ 24 ]. Our research group also achieved a good flame retardant effect on the cotton fabrics through the introduction of both APP and BPEI [ 25 ].…”
To improve on the poor strength and flame retardancy of a chitosan (CS)-based functional film, cellulose nanofiber (CNF) was taken as the reinforced material and both ammonium polyphosphate (APP) and branched polyethyleneimine (BPEI) as the flame-retardant additives in the CS matrix to prepare the CS/CNF/APP/BPEI composite film by simple drying. The resulting composite film showed good mechanical strength, with a tensile strength reaching 71.84 Mpa due to the high flexibility of CNF and the combination of CS, CNF and BPEI through strong hydrogen bonding interactions. The flame retardant-performance of the composite film greatly enhanced the limit oxygen index (LOI), up to 32.7% from 27.6% for the pure film, and the PHRR intensity decreased to 28.87 W/g from 39.38% in the micro-scale combustion calorimetry (MCC) test due to the ability of BPEI to stimulate the decomposition of APP, releasing non-flammable gases such as CO2, N2, NH3, etc., and forming a protective phosphating layer to block the entry of O2. Based on the good flame retardancy, mechanical strength and transparency, the CS/CNF/APP/BPEI composite film has a great potential for future applications.
“…In addition, TiO 2 nanoparticles can be potentially harmful to the human body if they are directly touched or inhaled in the process of longterm use. Recently, Huang et al 37 demonstrated how the preparation of superhydrophobic cotton fabric with a double-coated construction was achieved by a simple multi-step dipping process. Multiple impregnations of the same hydrophobic component liquid were conducive to the further enhancement of superhydrophobicity and the improvement of the coating uniformity to a certain extent.…”
With the development of the material engineering and textile industry, superhydrophobic textiles have been an important category of superhydrophobic materials and have increasingly attracted the attentions of researchers. In recent years, many potential applications of these products have been explored by researchers. However, industrial production of the superhydrophobic textiles is still challenging to textile scientists and engineers, especially with increased environmental and human safety regulations. In this article, recent progress in the research and development of superhydrophobic textiles is reviewed and the advantages and disadvantages of the preparation methods of superhydrophobic textiles are generalized. Potential applications of superhydrophobic textiles in industrial, medical, and civilian fields are summarized. The challenges faced in research on superhydrophobic textiles are analyzed, mainly including restrictions on the use of environmentally hazardous fluorocarbons and organic solvents, demand for durable functional stability, economic and technical limitations of textile wet processing industry. This article will provide some reference and inspiration for the design, optimization and application of superhydrophobic textiles.
“…The water contact angle (WCA) of a superhydrophobic surface is greater than 150 °, and the slide angle (SA) is less than 10°. Superhydrophobic performance may be attained by building appropriate hierarchical micro/nanoscale structures to improve surface roughness, as well as modifying low-surface energy coatings [16][17][18][19].…”
The cotton textiles with superhydrophobic and flame-retardant properties used in this study were manufactured by combining nano APP@SiO2 with silicone oil. To generate nano APP@SiO2 particles, the APP is coated with nano SiO2. The nano APP@SiO2 improves the flame retardancy of cotton textiles while altering the surface roughness of cotton fabrics, making them superhydrophobic after being treated with silicone oil. Cotton fabrics’ surface topography, chemical components, crystalline structure, thermal stability, flame-retardant, and superhydrophobic properties were investigated. The modified cotton fabric demonstrated not only exceptional superhydrophobicity with a WCA of 151.28°, but also good flame-retardant property. This multifunctional cotton fabric offers a wide range of commercial applications.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.