Cellulose Materials with Reduced Fire Hazard

Strekalova, Yu. V.; Zubkova, N. S.; Konstantinova, N. I.; Naganovskii, Yu. K.

doi:10.1023/b:fich.0000003477.22169.a1

Cited by 3 publications

(3 citation statements)

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“…Several flame retardant techniques have been exploited for improving the fire performance of PCB fabric: flame retardant finishing has been used for improving the flame retardancy of PCB fabric because of its convenience and cheapness during processing [2][3][4][5][6][7], but the flame retardant is not durable after treatment finishing. modification of some filaments could improve their flame retardant properties, some fabrics are considered to be permanently fire retardant [8][9][10][11][12]. however, the combustion characteristics of blended fabric cannot be predicted, the two fibers can occur physical and chemical reaction during the process of thermal degradation, the process is complicated and changeable; flame retardant coatings, as one of efficient ways, have been employed widely to protect a substrate against fire [13][14][15][16][17][18], it can avoid the heat penetrating and flames spreading [19,20], but the fabric feel harden after treatment.…”

Section: Introductionmentioning

confidence: 99%

Graft Copolymerization of Acrylamide onto Polyester-Cotton Blended Fabric by Using Potassium Permanganate Redox System

Wang

Ren

et al. 2012

AMR

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The graft copolymerization of acrylamide onto polyester-cotton blended (PCB) fabric by using potassium permanganate (KMnO4) redox system was carried out. Effects of various parameters, such as concentration of monomer and initiator, reaction time and temperature on grafting were studied. The grafting percentage increased significantly with the increase of the concentration of acrylamide up to 1 mol/L and decreased after that. The graft yields increased steply with the increase of reaction time up to 3h and then increased progressively. The rate of grafting was also dependent on reaction temperature, it increased with the temperature up to 60°C, then the rate of increase gradually slowed down. The chemical structure of grafted surface of the PCB fabric was characterized by infrared (IR) spectroscopy and scanning electron microscope. The fire performance was investigated by the LOI and the vertical flammability tests, and the results indicate that the grafting treatment could improve the flame retardancy. Thermal behavior of grafted fabric samples was evaluated by Thermogravimetric (TG) and differential thermogravimetric (DTG).

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Section: Introductionmentioning

confidence: 99%

Graft Copolymerization of Acrylamide onto Polyester-Cotton Blended Fabric by Using Potassium Permanganate Redox System

Wang

Ren

et al. 2012

AMR

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“…These problems were successfully solved by using a manufactured polyfunctional CI, the ammonium salt of amino-tris-methylenephosphonic acid (AS AMPA) [21,22]. The fire-protection action of this CI incorporated into various types of polymers (cellulose, polyethyleneterephthalate, polypropylene, polystyrene) was effective because of several factors.…”

mentioning

confidence: 96%

“…Also, FSSs containing nanoparticles of metal oxides or metals ions immobilized in nanotubes were also used. This reduced not only the combustibility of the material but also the amount of released toxic carbon monoxide [21,23].…”

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confidence: 99%

Modified polymeric materials, some fundamental and applied aspects

et al. 2011

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Results of theoretical and applied studies on the modification of fibrous and film materials that were performed in the Department of Chemical Fiber and Nanomaterial Technology during recent years were presented.Controlled regulation of the properties of complex polymeric systems using various methods to modify them during the synthesis of the fiber-forming polymers and the production of shaped composites and to change the functional composition and structure of the formed fibers and materials based on them occupied an important place in the wide ranging scientific interests of Kirill Evgen'evich Pererpelkin that encompassed problems of the theory and technology of chemical fiber formation processes and the structures and properties of composites. The present article reviews results of research in this area that was carried out in the Department of Chemical Fibers and Nanomaterials of A. N. Kosygin Moscow State Textile University and is dedicated to the memory and honor of K. E. Perepelkin, our colleague and friend.Many effective methods for making controlled changes in the structures and properties of polymers are based on their chemical modification. Studying trends in chemical reactions and the influence of subtle structural features of macromolecules and the supramolecular structure on the physical and physicochemical properties of polymeric systems is one of the most important problems of polymer chemistry. Its solution not only enables the development and deepening of fundamental knowledge but also acts as a basis for elaborating methods and technical processes for producing new high-efficiency polymers.Graft polymerization of ionizable and non-ionizable monomers containing reactive functional groups and their subsequent chemical transformations occupy a special place in the study of polymeric systems. These types of reactions can produce modified fibers with a broad spectrum of properties and good retention of the physicomechanical properties owing to the high strength of the industrial samples, i.e., fiber precursors, and the high technology of the process.Special attention in the evolution of this area was paid to the development of effective redox systems (RSs) that provide a high degree of conversion and efficiency of graft polymerization. A series of RSs that could carry out graft polymerization of ionizable monomers with 70-90% conversion and grafting efficiency 90-95% and of non-ionizable ones, up to 98 and 100%, respectively, was proposed [1]. The addition of small quantities of nano-sized RS components, i.e., redox-active metal ions, could accelerate substantially the formation of the macroradicals.Several process features were identified during a study of graft polymerization to polymers oriented at the interface of solid and liquid phases. The structural and physical properties (orientation and degree of crystallinity) and the dynamics of the polymer molecule as a solid body were observed to have an influence on the kinetics of radical graft polymerization. Concepts about the role of the gel eff...

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Thermal Stability of Cotton Cellulose Modified with Flame Retardants

2010

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The thermal stability of cotton cellulose treated with chemical mixtures containing P and N was studied by thermal analysis, infrared spectroscopy, char yield and limiting-oxygen-index (LOI). Our experiments demonstrated that the temperature and activation energy of pyrolysis were lower and the values of Char yield and LOI were greater for cotton cellulose treated with flame retardant than those for untreated sample.

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Cellulose Materials with Reduced Fire Hazard

Cited by 3 publications

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Graft Copolymerization of Acrylamide onto Polyester-Cotton Blended Fabric by Using Potassium Permanganate Redox System

Graft Copolymerization of Acrylamide onto Polyester-Cotton Blended Fabric by Using Potassium Permanganate Redox System

Modified polymeric materials, some fundamental and applied aspects

Thermal Stability of Cotton Cellulose Modified with Flame Retardants

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