Formation and investigation of epoxy intumescent compositions modified by active additives

Kodolov, V. I.; Shuklin, S. G.; Kuznetsov, A. P.; Makarova, L. I.; Bystrov, S. G.; Demicheva, O. V.; Rudakova, T. A.

doi:10.1002/app.10751

Cited by 13 publications

(7 citation statements)

References 98 publications

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“…The relocation rate of heat through the charring layers depends on the expansion and structure of the residual char. The expansion and structure of the char are very vital to common fire‐retardant properties of coatings 13…”

Section: Resultsmentioning

confidence: 99%

Effect of boric acid and melamine on the intumescent fire‐retardant coating composition for the fire protection of structural steel substrates

Ullah

Ahmad

Yusoff

2012

J of Applied Polymer Sci

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Intumescent coating is an insulating material designed to decrease heat transfer to a substrate structure. The coating presented in this research article was based on expandable graphite, ammonium polyphosphate, melamine, and boric acid. Bisphenol A epoxy resin BE-188 was used as a binder with ACR hardener H-2310 polyamide amine. Different formulations were developed to study the effect of expansion and heat shielding after fire testing. The coating was tested at 950 C for 1 h. The results show that the coating was stable and well bonded with the substrate. The coating was characterized with thermogravimetric analysis (TGA, Parkin Elmer, Norwalk, CT, 06859, USA), Fourier transform infrared (FTIR, Nicolet 400 D Shimadzu spectrometer) spectroscopy, X-ray diffraction (XRD, Bruker D8 advance Diffracto meter, Bruker Germany), and scanning electron microscopy (SEM, Carl Zeiss Leo 1430VP, UK). The morphology of char was studied by SEM on the coating after fire testing. XRD and FTIR spectroscopy showed the presence of graphite, boron phosphate, boron oxide, and sassolite in the residual char. TGA (Pyris 1, manufactured by Parkin Elmer, Norwalk, CT, 06859, USA) and differential thermal gravimetric analysis (DTGA) showed that boric acid enhanced the residual weight of the intumescent fire-retardant coating.

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Section: Resultsmentioning

confidence: 99%

Effect of boric acid and melamine on the intumescent fire‐retardant coating composition for the fire protection of structural steel substrates

Ullah

Ahmad

Yusoff

2012

J of Applied Polymer Sci

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“…Kodolov et al 83 reported a study on intumescent composites based on epoxy resins crosslinked with polyethylene–polyamine and containing APP and such co‐additives as calcium borate, manganese dioxide and nickel‐ or chromium‐containing tubulenes (products of dehydration and polycondensation of phenanthrene containing Ni or Cr) as carbonization stimulators. In fact, the introduction of metal‐containing tubulenes led to compositions with low flammability and high char yield, whereas the use of calcium borate considerably increased the strength of the intumescent foam being formed.…”

Section: Flame‐retardant Epoxiesmentioning

confidence: 99%

Thermal decomposition, combustion and flame‐retardancy of epoxy resins—a review of the recent literature

Levchik

Weil²

2004

Polymer International

511

307

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An overview of the recent literature on combustion and flame‐retardancy of epoxy resins is presented. A brief overview of the structures of cured epoxy resins is also presented as a background for better understanding of the thermal decomposition and combustion phenomena. The literature sources were mostly taken from the publications of 1995 and later; however, for basic descriptions of the structural and thermal decomposition principles, older publications are also cited. New developments in flame‐retardant additives, epoxy monomers and curing agents are described. It is shown that the main attention in recent years has been focused on phosphorus‐containing epoxy monomers and epoxy resins. Silicon‐containing or nitrogen‐containing products and inorganic additives remain of great interest as supplementary materials to phosphorus flame‐retardants. Copyright © 2004 Society of Chemical Industry

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“…The gap between the HV and ground electrodes is defined as 50 mm. All specimens were tested in a closed cabinet with an open roof and minimum air circulation (Kodolov et al, 2002). …”

Section: Literature Review and Hypothesesmentioning

confidence: 99%

Examination of Surface Tracking on Polyurethane Foam Insulators

Güneş

2015

Procedia - Social and Behavioral Sciences

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In this research, life time of foam insulation materials was tested and surface degradation of foam insulators was investigated ASTM D2303 test conditions. Surface tracking on organic solid insulators is one of the main reasons for failure in high voltage systems. Due to various factors, such as humidity, pollution, ice load, increase in local voltage, it is hard to estimate the lifetime of an insulator. To determine the model parameters, several tests are performed according to the ASTM D2303 accelerated inclined plane tracking test method by investigating the breakdown times of polyurethane foam under various external conditions generated artificially in the laboratory. Foam insulation materials have to suffer several degradation mechanisms throughout their service life under high voltage. Surface tracking is one of these severe mechanisms which can lead to a total breakdown of the insulator.

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Formation and investigation of epoxy intumescent compositions modified by active additives

Cited by 13 publications

References 98 publications

Effect of boric acid and melamine on the intumescent fire‐retardant coating composition for the fire protection of structural steel substrates

Effect of boric acid and melamine on the intumescent fire‐retardant coating composition for the fire protection of structural steel substrates

Thermal decomposition, combustion and flame‐retardancy of epoxy resins—a review of the recent literature

Examination of Surface Tracking on Polyurethane Foam Insulators

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