Authors:Hadi Fallah Moafi, Abdollah Fallah Shojaie, and Mohammad Ali Zanjanchi
The field of flame-retardancy of polymers has greatly developed and expanded during the last 20 years [ 1 ]. Most polymers and cellulosic fibers as organic materials are very sensitive to flame. Therefore, the
The synergism of lithium bromide and antimony trioxide on the flame-retardancy of a cotton fabric (woven, plain 150 g m2) has been investigated in this study. The impregnations of cotton fabric with suitable individual additives and/or their
appropriate admixed formulation were carried out. The flammability test has also been fulfilled using described procedure,
in the earlier published articles. Their outcomes comply with thermogravimetry’s data. Moreover the latest mentioned outcomes
support the catalytic effect of this synergism. Explanation of the data could be in favor of existing flame-retardation’s
theories. Ultimately this synergism is in compliance with the green chemistry and economical viewpoints.
ratio of property to price in flameretardancy of ABS resin [ 4 ]. However, the uses of these halogen-containing flame retardants have been limited because they lead to environmental problems by generating great quantities of toxic and corrosive fumes
with organic materials of APP. When they are exposed to water or a moisture environment, migration and exudation of them may occur, which lead to a decrease in the properties of the polymer composites, not only flameretardancy (FR), but also some other
Authors:Kun Wu, Min-Min Shen, Yuan Hu, Weiyi Xing, and Xin Wang
of EP, the fiber reinforced epoxy composite is easily flammable and its development and application in many fields is limited. Some literature focus on the flameretardancy of glass or carbon fiber reinforced epoxy composites using non-halogen flame
and scientific interests in recent years. Usually, the most common method to improve the flameretardancy of wood is chemical treatment with flame retardants [ 5 ].
The chemicals commonly used as flame retardants in wood include ammonium
Authors:Qiang Wu, Jianwen Bao, Chuck Zhang, Richard Liang, and Ben Wang
that acts as a heat shield for composites. Consistent with this mechanism, the flameretardancy was found to improve with better dispersion and a higher interface area (aspect ratio) of the nanotubes at desired loading. However, the major hurdle
Cotton, the most commonly used textile fiber, is also highly combustible. So its flame-retardancy finishing and garments made by this fiber becomes necessary to improve human safety under many circumstances
The thermal behaviours of untreated cellulose (cotton) and samples treated with phosphorus and nitrogen-containing flame-retardants have been studied by means of the derivatograph and quantitative DTA, with the aim of revealing the advantageous features of thermal analysis in the investigation of the flame-retardation of cellulose substrates. The complex thermoanalytical method applied proved to be suitable for the investigation of the efficiency of flame-retardation in parallel with the oxygen index method and the determination of the phosphorus content of the sample. The efficiencies obtained with different methods are in correlation.
The flame-retardation of Pyrovatex CP on cellulose substrate has been studied. Since levoglycosan, responsible for the fiammability of cellulose, is formed in the main decomposition process by dehydration, the amounts of water vapour released from untreated and treated cellulose during this process were measured. The water contents of the decomposition products obtained in thermal measurements were absorbed in dioxan and determined dielectrometrically.