Preparation of a New Flame Retardant Based on Phosphorus–Nitrogen (P–N) Synergism and its Application on Cotton Fabrics

2012 ◽  
Vol 479-481 ◽  
pp. 381-384 ◽  
Author(s):  
Zhen Quan Dong ◽  
Dan Yu ◽  
Wei Wang
Keyword(s):  
Flame Retardant ◽  
Cotton Fabric ◽  
Cotton Fabrics ◽  
Tetraethyl Orthosilicate ◽  
Infrared Spectrometry ◽  
Fourier Transform Infrared Spectrometry ◽  
Ft Ir ◽  
Char Length ◽  
Synergistic Flame Retardant ◽  
Magnetic Resonances

Abstract: A novel oligomeric P–N synergistic flame retardant (FR) poly(phenyl O–(2–aminoethyl) phosphonamidoate) (PPAP) was synthesized and characterized by fourier transform infrared spectrometry (FT–IR) and 1H nuclear magnetic resonances (1H NMR). Application of PPAP on cotton fabric was studied, and the results showed that the best dosage of PPAP and coupling agent tetraethyl orthosilicate (TEOS) were 350 g/L and100 g/L respectively. Under these conditions, the treated cotton fabric was tested with 10.6 cm of char length. The results of thermogravimetric analyser (TGA) indicated that the fabrics treated with PPAP were more stable in high temperature compared with original fabrics. All the results implied PPAP can be used as a promising FR.

scholarly journals Construction of Biological Flame Retardant Layer on Cotton Fabric via Photografting of Nucleotide/Amino Acid Monomers

2021 ◽  
Author(s):  
yutong liu ◽  
Xiao Wang ◽  
Zhenbao Li ◽  
Ju Wei ◽  
Bing Du
Keyword(s):  
Flame Retardant ◽  
Cotton Fabric ◽  
Chemical Structure ◽  
Pyrolysis Temperature ◽  
Cotton Fabrics ◽  
Scanning Electron Micrographs ◽  
Double Bonds ◽  
H Nmr ◽  
Ft Ir ◽  
Synergistic Flame Retardant

Abstract The 5’-adenylicacid (AMP-Na2) is modified to introduce unsaturated double bonds for photografting onto cotton fabrics together with L-cysteine (L-Cys) monomer to prepare synergistic flame-retardant cotton fabrics. The chemical structure of AMP-Na2/L-Cys monomers, the surface morphology, residual carbon morphology, thermal property and flame retardant property of photografted flame retardant cotton fabrics are analyzed. FT-IR and 1H NMR spectra verified the AMP-Na2 and L-Cys monomers with unsaturated double bonds. Scanning electron micrographs revealed the carbon residue of photografted fiber maintains a natural curled and fibers shape. TGA showed the major pyrolysis temperature of photografted cotton fabric declined by 42℃, with the weight loss reduced by 21.6%, proving that good charring effect. The continuous burning and smoldering time of photografted cotton fabric are decreased to 0s. The experimental results indicate that AMP-Na2/L-Cys monomers can reveal good durability and remarkable flame retardancy property to cotton fabrics via facile treatment of photografting.

Characterization of Cotton Fabric Treated with a Si/P Flame Retardant

2011 ◽  
Vol 331 ◽  
pp. 249-252
Author(s):  
Ran Wang ◽  
Yi Jin Bai ◽  
Xiao Chun Wang ◽  
Yan Qiu Wang
Keyword(s):  
Surface Morphology ◽  
Phosphoric Acid ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Cotton Fiber ◽  
Chemical Structure ◽  
Tetraethyl Orthosilicate ◽  
Sem Image ◽  
Ft Ir

A Si/P flame retardant was prepared using tetraethyl orthosilicate (TEOS) and phosphoric acid (H3PO4). Original cotton fabric, treated fabric and its charcoal were examined by FT-IR, SEM, and EDS. Results showed that the TEOS/H3PO4 flame retardant has little affect on the cotton chemical structure and the surface morphology of cotton fiber. Main absorption peaks of the charcoal in the FT-IR are attributed to the P-O-C and the Si-O-Si bonds. And the surface of the charcoal was covered with white particles. EDS illustrates Si-O-Si bonds form on the surface and exhibit white particles in the SEM image.

Development of thermally stable and hygienic colored cotton fabric made by treatment with natural coconut shell extract

2017 ◽  
Vol 48 (1) ◽  
pp. 87-118 ◽  
Author(s):  
MD Teli ◽  
Pintu Pandit
Keyword(s):  
Fourier Transform ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Oxygen Index ◽  
Fourier Transform Infrared ◽  
Cotton Fabrics ◽  
Energy Dispersive ◽  
Coconut Shell ◽  
Flame Resistance ◽  
Limiting Oxygen Index

As far as the value addition of textile is concerned, flame retardancy of textile materials is considered to be one of the most important properties in textile finishing by both industries as well as academic researchers. Flame-retardant property with thermal stability was imparted to cotton by using green coconut ( Cocos nucifera Linn) shell extract, a natural waste source of coconut. Coconut shell extract was analyzed by high-performance liquid chromatography, Fourier transform infrared spectroscopy, energy-dispersive spectrometry and its phytochemical analysis was also carried out. The coconut shell extract (acidic after extraction) was applied in three different pH (acidic, neutral, and alkaline) conditions to the cotton fabric. Flame-retardant properties of the untreated and the treated cotton fabrics were analyzed by limiting oxygen index and vertical flammability. The study showed that all the treated fabrics had good flame resistance property compared to that of the untreated fabric. The limiting oxygen index value was found to increase by 72.2% after application of the coconut shell extract from alkaline pH. Pyrolysis and char formation behavior of the concerned fabrics were studied using thermogravimetric analysis and differential scanning calorimetric analysis in a nitrogen atmosphere. The physicochemical composition of the untreated and coconut shell extract treated cotton fabrics were analyzed by attenuated total reflection–Fourier transform infrared, scanning electron microscope, and energy-dispersive X-ray spectroscopy. Also, treated cotton fabric showed natural brown color and antibacterial property against both Gram-positive and Gram-negative bacteria. The durability of the flame-retardant functionality to washing with soap solution has also been studied and reported in this paper.

Layer-by-layer Assembly Polyethylenimine/phytic Acid Coating With Gradient Structure for High-Efficiency and Durable Flame Retardant Cotton Fabric With Good Physical and Mechanical Properties

2021 ◽  
Author(s):  
Xinhua Liu ◽  
Hailong Liu ◽  
Yinchun Fang
Keyword(s):  
Physical Properties ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
High Efficiency ◽  
Cotton Fabrics ◽  
Gradient Structure ◽  
Layer By Layer ◽  
Assembly Method ◽  
Lbl Assembly ◽  
Coated Cotton

Abstract In this study, intumescent flame retardant coating of polyethylenimine/phytic acid (PEI/PA) with gradient structure was constructed on cotton fabric through facile layer-by-layer (LBL) assembly method. The LOI value of coated cotton fabric reached over 40% indicating excellent flame retardancy. Reasonable controlling the LBL assembly process of PEI/PA coating brought less influence to the physical properties of cotton fabrics. And the coated cotton fabric revealed good flame retardant washing durability. Thermogravimetric analysis results of coated cotton fabrics showed that PEI/PA flame retardant coating changed the thermal decomposition process and promoted char formation revealing the obviously condensed phase flame retardant action. SEM images of char residues revealed that PEI/PA flame retardant coating promoted to form the intumescent flame retardant (IFR) char layer showing obvious IFR action. This research provides novel strategy for the development of high-efficiency flame retardant cotton fabric with good durability and physical properties using simple LBL assembly method.

Synthesis of P–N–Si synergistic flame retardant based on a cyclodiphosphazane derivative for use on cotton fabric

Cellulose ◽  
2019 ◽  
Vol 26 (12) ◽  
pp. 7553-7567 ◽  
Author(s):  
Mingsheng Liu ◽  
Shuo Huang ◽  
Guangxian Zhang ◽  
Fengxiu Zhang
Keyword(s):  
Flame Retardant ◽  
Cotton Fabric ◽  
Synergistic Flame Retardant

FT-IR Characterization of the Acidic and Basic Sites on a Nanostructured Aluminum Nitride Surface

1996 ◽  
Vol 454 ◽  
Author(s):  
M.-I. Baraton ◽  
X. Chen ◽  
K. E. Gonsalves
Keyword(s):  
Aluminum Nitride ◽  
Organic Molecules ◽  
Sol Gel ◽  
Atomic Layer ◽  
Infrared Spectrometry ◽  
Nitride Powder ◽  
Fourier Transform Infrared Spectrometry ◽  
Basic Sites ◽  
Ft Ir

ABSTRACTA nanostructured aluminum nitride powder prepared by sol-gel type chemical synthesis is analyzed by Fourier transform infrared spectrometry. The surface acidic and basic sites are probed out by adsorption of several organic molecules. Resulting from the unavoidable presence of oxygen, the aluminum nitride surface is an oxinitride layer in fact, and its surface chemistry should present some analogies with alumina. Therefore, a thorough comparison between the acido-basicity of aluminum nitride and aluminum oxide is discussed. The remaining nitrogen atoms in the first atomic layer modify the acidity-basicity relative balance and reveals the specificity of the aluminum nitride surface.

Synthesis and Properties of Polypropylene Carbonate Polyol-Based Waterborne Polyurethane

2014 ◽  
Vol 936 ◽  
pp. 58-62 ◽  
Author(s):  
Cheng Shu Xu ◽  
Cheng Cheng Tian ◽  
Wei Dong Zhang ◽  
Jian Wei Xing ◽  
Zai Sheng Cai ◽  
...  
Keyword(s):  
Water Resistance ◽  
Soft Segment ◽  
Waterborne Polyurethane ◽  
Infrared Spectrometry ◽  
Structure And Properties ◽  
X Ray Diffraction ◽  
Fourier Transform Infrared Spectrometry ◽  
X Ray ◽  
Polyhydric Alcohols ◽  
Ft Ir

Different kinds of anionic polyhydric alcohols water-borne polyurethane (WPU) emulsion and films were prepared by separately taking polypropylene carbonate polyol (PPC), polyethylene-1,4-buthylene adipate glycol (PBA) and polytetramethylene ether glycol (PTMG) with the same molecular weight as soft segment. Their structure and properties were characterized with Fourier transform infrared spectrometry (FT-IR), X-ray diffraction (XRD), rigidity, adhesive power, contact angle and water absorption. Comparing their properties, it was found that the rigidity, adhesive power and water resistance of PPC WPU were similar to those of PBA WPU.

Flammability and thermal properties of cotton fabrics modified with a novel flame retardant containing triazine and phosphorus components

2016 ◽  
Vol 87 (11) ◽  
pp. 1367-1376 ◽  
Author(s):  
Chaohong Dong ◽  
Zhou Lu ◽  
Peng Wang ◽  
Ping Zhu ◽  
Xuechao Li ◽  
...  
Keyword(s):  
Heat Release ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
Flame Retardancy ◽  
Decomposition Temperature ◽  
Cotton Fabrics ◽  
Cone Calorimetry ◽  
Limiting Oxygen Index ◽  
Untreated Cotton ◽  
Index Value

A novel formaldehyde-free flame retardant containing phosphorus and dichlorotriazine components (CTAP) for cotton fabrics was synthesized. As an active group, the dichlorotriazine could react with cotton fabric via covalent reaction. The addition of 20.7 wt% CTAP into the cotton fabric obtained a high limiting oxygen index value of 31.5%, which was 13.5% higher than the pure cotton fabric. The results of heat release rate, total heat release and effective heat combustion indicated that CTAP effectively imparted flame retardancy to cotton fabric by the cone calorimetry test. With respect to the untreated cotton fabrics, the treated cotton fabrics degraded at lower decomposition temperature and form a consistent and compact char layer, which could be observed by thermogravimetric analysis, Fourier transform infrared spectroscopy and scanning electron microscopy. Compared to the untreated cotton fabrics, CTAP performed an effective role in flame retardancy for treated cotton fabrics. Meanwhile, it stimulated the formation of char and promoted the thermal stability of treated cotton fabrics during combustion.

scholarly journals Extraction of Dyes from Sunflower Petal and Their Fourier Transform Infrared Characterization

2022 ◽  
Vol 3 (2) ◽  
Author(s):  
Gboyega Oluwaseun Oyeleke ◽  
Ibraheem Abimbade Abdulazeez ◽  
Ajisola Agnes Adebisi ◽  
Kehinde Nasiru Oyekanmi ◽  
Segun Olaitan Akinbode
Keyword(s):  
Fourier Transform ◽  
Helianthus Annuus ◽  
Functional Groups ◽  
Methanolic Extract ◽  
Fourier Transform Infrared ◽  
Infrared Spectrometry ◽  
Fourier Transform Infrared Spectrometry ◽  
Naoh Solution ◽  
Ft Ir ◽  
Ir Analysis

Three solvents of different polarities (water, methanol and 1% NaOHsolution) were used to extract dyes that produced different shades fromdried sunflower (Helianthus annuus) petal. The extraction proceduresusing different solvent types were carried out separately. The dye extractswere thereafter subjected to Fourier Transform Infrared Spectrometry(FT-IR) analysis for characterization in terms of functional groups. Theintensities of the extracted dyes on the shade of colours obtained on piecesof cotton material varied from yellow in methanolic extract to light yellowin aqueous and black in 1% NaOH solution extracts. The results obtainedfrom the FT-IR analysis revealed the presence of several useful functionalgroups such as N-H, C=H, O-H and C=O in the extracts.

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