Untitled

Kunze, R.; Schartel, Bernhard; Bartholmai, Matthias; Neubert, D.; Schriever, R.

doi:10.1023/a:1022272707412

Cited by 35 publications

(11 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The thermal and thermo‐oxidative decomposition and the evolved gas during pyrolysis were studied by means of TG–FTIR (Thermobalance TGA/STDA 851 by Mettler‐Toledo, Gießen, Germany coupled with the FTIR‐Spectrometer Nexus 470 by Nicolet Instruments, Offenbach, Germany) 43. A heating rate of 10°C min −1 and a nitrogen or air flow of 30 cm 3 min −1 were used.…”

Section: Experimental Partmentioning

confidence: 99%

Flame retarded epoxy resins by adding layered silicate in combination with the conventional protection‐layer‐building flame retardants melamine borate and ammonium polyphosphate

Schartel

Weiss

Mohr

et al. 2010

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

The pyrolysis and flammability of phosphonium-modified layered silicate epoxy resin nanocomposites (EP/LS) were evaluated when LS was combined with two flame retardants, melamine borate (MB) and ammonium polyphosphate (APP), that also act via a surface protection layer. Thermogravimetry (TG), TG coupled with Fourier Transform Spectroscopy (TG-FTIR), oxygen index (LOI), UL 94 burning chamber (UL 94) and cone calorimeter were used. The glassy coating because of 10 wt % MB during combustion showed effects in the cone calorimeter test similar to nanodispersed LS, and somewhat better flame retardancy in flammability tests, such as LOI and UL 94. Adding APP to EP resulted in intumescent systems. The fire retardancy was particularly convincing when 15 wt % APP was used, especially for low external heat flux, and thus, also inflammability tests like LOT and UL 94. V0 classification is achieved when 15 wt % APP is used in EP. The flame retardancy efficiency of the protection layers formed does not increase linearly with the MB and APP concentrations used. The combination of LS with MB or APP shows antagonism; thus the performance of the combination of LS with MB or APP, respectively, was disappointing. No optimization of the carbonaceous-inorganic surface layer occurred for LS-MB. Combining LS with APP inhibited the intumescence, most probably through an increase in viscosity clearly above the value needed for intumescent behavior

show abstract

Section: Experimental Partmentioning

confidence: 99%

Flame retarded epoxy resins by adding layered silicate in combination with the conventional protection‐layer‐building flame retardants melamine borate and ammonium polyphosphate

Schartel

Weiss

Mohr

et al. 2010

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore the temperature and the thermal insulation depend on the time, the material (Figure 1), the layer thickness ( Figure 2) and the applied heat flux (Figure 3). Decomposition onset temperatures for the multicellular char of both materials were reported to be around 4808C using heating rates of 10 K min À1 [22]. This decomposition of the intumescent layer led to a decrease of its heat insulating effect.…”

Section: Test Resultsmentioning

confidence: 94%

“…Only a coaction of different decomposition processes, like char formation, release of non flammable gases, endothermic reactions and other heat sink mechanisms results in an effective intumescence. They have been described in detail previously for the investigated systems using thermogravimetric methods [22]. It is worth mentioning that the temperature ranges of intumescence using the cone calorimeter and thermogravimetry, respectively, correspond to each other, taking into account that for thermogravimetry a constant heating rate is used, whereas in a cone calorimeter set up the external heat flux is constant.…”

Section: Test Resultsmentioning

confidence: 99%

Influence of external heat flux and coating thickness on the thermal insulation properties of two different intumescent coatings using cone calorimeter and numerical analysis

2003

Self Cite

View full text Add to dashboard Cite

SUMMARYPolymeric intumescent coatings are fire protective materials that increase their thermal resistance when exposed to high temperatures to prevent building structures from damage. The idea of the investigation was to develop a simple test method to determine the time dependent thermal conductivity of intumescent coatings. Therefore steel plates were coated with two different intumescent systems. During cone calorimeter tests the temperature at the back side of the coated plates was measured. These results were used to calculate the time dependent thermal resistance of the protective layer with the simulation program IOPT2D for different external heat fluxes and different layer thickness.

show abstract

“…On one side elements of the steel structure heat up quickly, and the other -well distribute and dissipate heat. Balance of heat flows in heating and cooling determines the change in temperature of the structure and the time to reach the critical temperature [10,13,15].…”

Section: Calculation Of the Fire-retardant Treatmentmentioning

confidence: 99%

Calculation of Limits of Fire Resistance for Structures with Fire Retardant Coating

Krivtcov

Gravit

Zimin

et al. 2016

MATEC Web of Conferences

View full text Add to dashboard Cite

Abstract. This article is devoted to fireproof processing of steel structures. The main task is to consider different types of sections of rod elements and to choose the most effective section for a steel column from the point of view of fire protection. For the solution of this task the steel columns with various cross sections working in identical entry conditions were considered. All necessary calculations for all types of sections were carried out. Results of calculations were presented in the summary table according to which the comparative analysis was made. At the end of work the conclusion that the compound section from four equal corners is the most effective from the point of view of fire protection.

show abstract

Untitled

Cited by 35 publications

References 5 publications

Flame retarded epoxy resins by adding layered silicate in combination with the conventional protection‐layer‐building flame retardants melamine borate and ammonium polyphosphate

Flame retarded epoxy resins by adding layered silicate in combination with the conventional protection‐layer‐building flame retardants melamine borate and ammonium polyphosphate

Influence of external heat flux and coating thickness on the thermal insulation properties of two different intumescent coatings using cone calorimeter and numerical analysis

Calculation of Limits of Fire Resistance for Structures with Fire Retardant Coating

Contact Info

Product

Resources

About