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Antonov, Yu. S.; Петрова, Е. В.; Zubkova, N. S.

doi:10.1023/a:1022956007597

Fibre Chemistry

2002

DOI: 10.1023/a:1022956007597

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Yu. S. Antonov

Е. В. Петрова

N. S. Zubkova

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2011

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“…It was previously established in [6] that the ammonium salt of amino-tris(methylenephosphonic acid) (ASAMP) H О H 2 C АСАМФ has a highly effective fireproofing effect with respect to PP: its OI increases to 27.5% on addition of 20-25% of the weight of the polymer. The advantage of ASAMP over other FR is the relatively low cost and availability of the initial raw material and the high content of such combustion-inhibiting elements as nitrogen and phosphorus.…”

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Study of the efficacy of new systems for reducing the combustibility of polypropylene based on polycyclic organic compounds

et al. 2011

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Incorporation of a flame retardant system (FRS) consisting of the ammonium salt of amino-trismethylenephosphonic acid and a condensed tetranuclear heterocycle -2,7-diamino-4,9-dihydroxypyridotetrahydrophenanthrene-5,10-dione -in a polypropylene melt during spinning increases the oxygen index of the polymer, yield of carbonized residue, intensive decomposition temperature, and other parameters. The ratio of the components of the FRS and FRS content in the polymer affect these parameters.Polypropylene (PP) is one of the most popular polymers, in second place in the world for volume produced. This large-tonnage polymer from the polyolefin group is used in different branches of industry: in automotive transport, in aircraft and ship building, in the electronics industry [1, 2]. Its wide use in different areas of human activity is due to the low density, high strength, and wear resistance, low moisture absorption, light and chemical resistance, and resistance to microorganisms. However, an important drawback that restricts the areas of application of PP articles is its high combustibility. Polypropylene is a highly flammable compound with a low oxygen index (OI) equal to 17.4%. Combustion of PP is characterized by a high rate and is accompanied by smoking and formation of drops of polymer melt which serve as an additional source of flame propagation and cause severe burns [3,4].One promising method of reducing the combustibility of PP is to incorporate flame retardants (FT) of varying composition in the PP melt during spinning [5]. Phosphorus-, nitrogen-, or halogen-containing compounds of both inorganic and organic origin are the most common FR. Most FR negatively affect the process parameters of the polymer together with an effective fireproofing effect (increase in the OI to 28%) and decrease the physicochemical characteristics of the material due to the large amount of FR added -from 25 to 70 wt. % [5].The development of effective new FR using, for example, polycyclic organic compounds that increase melt viscosity, inhibit thermolysis and combustion of the polymer, and ensure its carbonization, will allow solving the pressing problem of reducing the combustibility, smoking power, and toxicity of the products of thermolysis of PP, and also decrease dripping when it burns.Moscow State Textile University.

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Study of the efficacy of new systems for reducing the combustibility of polypropylene based on polycyclic organic compounds

et al. 2011

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Study of the efficacy of new systems for reducing the combustibility of polypropylene based on polycyclic organic compounds

Study of the efficacy of new systems for reducing the combustibility of polypropylene based on polycyclic organic compounds

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