Flame-retardant paper with robust hydrophobicity enabled by perfluorodecane doped SiO2 nanofibers

Zhang, Yunxi; Xu, Qi; Jiang, Bofan; Ma, Zhijun

doi:10.1007/s10971-019-05206-w

Cited by 5 publications

(5 citation statements)

References 22 publications

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“…Thanks to its large surface area, silica does not penetrate into the polymer and creates an effective surface in preventing burning. The silica surface acts as a heat barrier that shows a barrier property against flames 27‐32 . The novelty that distinguishes this study from the others is the use of two different flame retardants together, acrylate in order to join the polymeric network to create a more homogeneous surface, and to make a highly flammable material such as paper less flammable.…”

Section: Introductionmentioning

confidence: 99%

Highly flame retardant photocured paper coatings and printability behavior

Ozcan

Kašiković

Kandırmaz

et al. 2020

Polymers for Advanced Techs

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Due to the high flammability of the paper, its use is restricted in advanced applications. In this study, UV-cured paper coating formulations containing silica nanoparticles and phosphinoxide were prepared and coated on paper surface. Flammability, wettability, and printability properties were investigated. For this purpose, the surface of the silica nanoparticles was first functionalized with hydroxyethyl methacrylate (HEMA) ─OH. The hydroxylated silica nanoparticles were then modified with isocyanatoethyl methacrylate. Bis fluoro phenylphosphine oxide was synthesized by Grignard reaction elsewhere and OH modified in basic medium. Acrylate groups were added to BHPPO with isocyanatoethyl methacrylate to make it suitable for UV-curing formulation. The chemical structures of the obtained substances were illuminated by ATR-FTIR. UV-cured paper coating formulations containing acrylated silica, acrylated phosphinoxide, and mixtures thereof were prepared and coated on the paper surface. Chemical structure, contact angle, surface energies, surface morphology, thermogravimetric analysis, and limited oxygen index of the coatings were determined. As a result, it has been concluded that coated papers have increased thermal stability in the nitrogen atmosphere. The highest thermal stability was observed in coatings containing nanosilica and it was determined that all of the coatings ignited later. Hybrid coatings made within the scope of this study have improved the printability properties as well as adding flame retardancy properties to the paper.

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Section: Introductionmentioning

confidence: 99%

Highly flame retardant photocured paper coatings and printability behavior

Ozcan

Kašiković

Kandırmaz

et al. 2020

Polymers for Advanced Techs

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“…As shown in Table 1 and Figure S1 , the actual proportion values of HN-SiO 2 are close to the theoretical values, and the deviations are mainly positive, which may be due to the high residual caused by the flame-retardation effect of silica particles. As mentioned in the literatures, the addition of nano-silica inhibits the decomposition of cellulose at high temperature to produce carbon dioxide, water vapor, and other gases, and promotes cellulose carbonization [ 37 , 38 , 39 ]. These factors make the final residual weight higher, which is consistent with the experimental results.…”

Section: Resultsmentioning

confidence: 99%

Preparing Hydrophobic Cellulose Nanofibers-SiO2 Films and Coating by One-Step Mechanochemical Method

Chen

Zhang

et al. 2022

Polymers

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Green and sustainable cellulose-based hydrophobic coatings are increasingly the subject of scientific and industrial research. However, few researchers pay attention to preparing it by a one-step method. Therefore, a superhydrophobic coating composed of hydrophobic SiO2 and cellulose nanofiber modified by 3,4-dichlorophenyl isocyanate was manufactured through one-step ball milling. It was found that the ball milling can promote SiO2 dispersion and achieve the preparation of modified nanocellulose, which further disperse SiO2 nanoparticles to form film or coating. Compared with the ultrasonic dispersion method, the composite coating prepared by ball milling method can obtain higher water contact angle and more stable hydrophobic properties. The hydrophobic cellulose nanofiber can load 1.5 equivalents of SiO2 nanoparticles to form a uniform film with the water contact angle of 158.0° and low moisture absorption. When this nanocomposite is used as a coating material, it can impart super-hydrophobicity to paper surface with water contact angle of 155.8°. This work provides a facile way to prepare superhydrophobic nanocellulose/nanoparticles composite coatings and films, thereby broadening the ways of dispersing nanoparticles and constructing superhydrophobic coatings.

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“…The scarcity of flame-retardant air filter paper with excellent performance in the domestic market has caused most filter companies to rely on imports to meet customer needs. [15][16][17] To break the foreign monopoly in the field of flame-retardant air filter paper and improve the competitiveness of this industry in my country, the research and development of highly effective flame-retardant air filter paper with better mechanical properties have become an urgent issue to be solved in China. [18][19][20][21] Ammonium polyphosphate (APP) is a high-efficiency flame retardant with P and N flame-retardant elements simultaneously, which has the advantages of low price, low smoke, non-toxic, halogen-free, and so on.…”

Section: Introductionmentioning

confidence: 99%

Preparation, structure and application of styrene-acrylic emulsion/modified ammonium polyphosphate in flame retardant air filter paper

Yan

Yang

Sun

et al. 2022

Journal of Industrial Textiles

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The filter paper of automobile engine air filter is easy to temper and causes combustion. Flame retardant is usually added to the reinforced resin styrene-acrylic emulsion (SAE) to improve the flame-retardant performance of the air filter paper. Ammonium polyphosphate (APP) was used as material in this research, and multi-layer coated APP was prepared by microcapsule coating. A layer of nano-scale SiO2 was coated and then introduced organosiloxane structure of the allyl polyoxypropylene ether side chain and boron. The chemical groups and structural composition were determined by Fourier transform infrared spectroscopy. TGA characterized the modified particles' high-temperature stability. By scanning electron microscopy and TEM, the morphologies of modified particles were analyzed to reveal the evolution of modified APP in SAE. Finally, nanoparticles with core-shell structures were formed. Applying the blended resin to the air filter paper, the flame-retardant performance was greatly improved. Total heat release (THR), heat release rate (HRR), peak heat release rate (pkHRR), mass loss rate (MLR), and effective heat of combustion (EHC) were reduced, respectively, by 30.8%, 30.7%, 42.0%, 16.7%, and 14.4%. The time to ignition (TTI) was doubled, so the fire spread could be effectively suppressed. Meanwhile, nano latex particles were attached to the interwoven fibers points and formed a “sea-island structure,” which significantly improved the paper’s mechanical properties, with bursting strength, tensile strength, stiffness, fracture work, and elongation increased by 18.60%, 5.72%, 10.64%, 17.00%, and 81.80%, respectively. It solved the problem that the inorganic flame-retardant particles often lead to the deterioration of the mechanical properties of paper.

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Flame-retardant paper with robust hydrophobicity enabled by perfluorodecane doped SiO2 nanofibers

Cited by 5 publications

References 22 publications

Highly flame retardant photocured paper coatings and printability behavior

Highly flame retardant photocured paper coatings and printability behavior

Preparing Hydrophobic Cellulose Nanofibers-SiO2 Films and Coating by One-Step Mechanochemical Method

Preparation, structure and application of styrene-acrylic emulsion/modified ammonium polyphosphate in flame retardant air filter paper

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