Fire‐retardant Additives for Polymeric Materials—I. Char Formation from Silica Gel–Potassium Carbonate

Gilman, Jeffrey W.; Ritchie, Steven J.; Kashiwagi, Takashi; Ломакин, С. М.

doi:10.1002/(sici)1099-1018(199701)21:1<23::aid-fam591>3.3.co;2-f

Cited by 14 publications

(16 citation statements)

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“…The value of HRRmax recorded for silicone rubber amounts to 115 kW m -2 , while the value of this parameter for organic polymer, determined for a heat flux equal to 35 kW m -2 , amounts to: for polypropylene 1800 kW m -2 [14], for PET 1600 kW m -2 [15], for low density polyethylene 1400 kW m -2 [16], and for NBR rubber 1100 kW m -2 [17].…”

Section: Flammability Of Silicone Rubber Compositesmentioning

confidence: 94%

Effect of cenospheric fillers on the flammability and fire hazard of silicone rubber composites

Rybiński

Żukowski

Bradło

2016

J Therm Anal Calorim

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This paper presents the results of testing the flammability of silicone rubber composites containing fillers, such as cenospheres, cenospheres covered with iron, attapulgite, wollastonite, aluminum hydroxide and silica. In order to increase the insulating character of boundary layer, boron trioxide was incorporated into the composites of silicone rubber as a ceramization additive. The flammability of the composites was tested with the use of a cone calorimeter. The composition of the gaseous products of thermal decomposition was determined quantitatively and qualitatively in the system with intensive stirring in the fluidal bed, under isothermal conditions at temperatures T = 550, 650 and 750°C. All the test results show that the fillers used, especially with ceramization additives considerably reduce the fire hazard of silicone rubber composites containing these fillers.

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Section: Flammability Of Silicone Rubber Compositesmentioning

confidence: 94%

Effect of cenospheric fillers on the flammability and fire hazard of silicone rubber composites

Rybiński

Żukowski

Bradło

2016

J Therm Anal Calorim

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“…Among inorganic fillers added to PMMA, silica was the most widely investigated. [10][11][12][13][14] The thermal degradation of such composites was a prime areas of investigation. It was shown that the addition of silica into PMMA improves thermal stability of the composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of ZnO on the Thermal Degradation Behavior of Poly(Methyl Methacrylate) Nanocomposites

Japić

Marinšek

Orel

2016

ACSi

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In the memory of Janez (Janko) Jamnik our dear friend and co-worker. AbstractThe influence of ZnO nanoparticles on the thermal degradation behavior of poly(methyl methacrylate) (PMMA) was tested using thermoanalytical techniques. The studied materials were investigated using TG, DTA, EGA, XRD, SEM and TEM. The ZnO nanoparticles were synthesized via precipitation by adding LiOH into Zn 2+ water/ethylene glycol solutions. The ZnO-PMMA nanocomposites were prepared by adding the appropriate amount of ZnO into MMA and subsequent MMA radical polymerization. According to the experimental results and model-free isoconversional activation energy calculations, the addition of ZnO into PMMA played a double role. The ZnO concentrations up to 0.15% stabilized the composite by shifting the degradation interval toward higher temperatures and increasing the apparent activation energy relative to pure PMMA. At higher concentrations, the catalytic effect of ZnO started to prevail and was reflected in the lower temperature intervals of intense PMMA degradation and lower apparent activation energy. The addition of ZnO generally did not change the nature of the PMMA decomposition process.

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“…In premixed flames, Fe(CO) 5 and at low concentrations, reduced the burning velocities up to 100 times more effectively than CF 3 Br and showed a strong dependence on both the fuel-air equivalence ratio and oxygen mole fraction. However, at high concentration of Fe(CO) 5 there was no additional reduction of the burning velocity. In diffusion flames, Fe(CO)5 was again shown to be more effective at the lowest concentrations, but the inhibition effect did not level off at higher mole fractions as it did in premixed flames.…”

Section: Introductionmentioning

confidence: 97%

“…Further work was carried out to find alternative inhibitors. Gilman et al 5 found that the flammability limits of a wide variety of polymers were dramatically reduced in the presence of relatively small concentrations of silica gel and potassium carbonate (K 2 CO 3 ). The heat peak rate was reduced by 68% without significantly increasing the smoke or carbon monoxide levels during the combustion.…”

Section: Introductionmentioning

confidence: 99%

Inhibitory Effect of Solid Inhibitors on LPG Combustible Mixtures

Hamdan

Yamin

Dabbas³

2010

Journal of the Korean Chemical Society

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ABSTRACT. An experimental rig was constructed in order to study the inhibitory effects of two thermal inhibitors namely; stone and calcium carbonate, on Liquefied Petroleum Gas -air flames. This was achieved by measuring the flammability limits of the combustible mixtures before and after the addition of these inhibitors. It was found that calcium carbonate has superior inhibitory effect on the combustible mixture under investigation while, Stone has a lower inhibitory effect than that of calcium carbonate.

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Fire‐retardant Additives for Polymeric Materials—I. Char Formation from Silica Gel–Potassium Carbonate

Cited by 14 publications

References 0 publications

Effect of cenospheric fillers on the flammability and fire hazard of silicone rubber composites

Effect of cenospheric fillers on the flammability and fire hazard of silicone rubber composites

Effect of ZnO on the Thermal Degradation Behavior of Poly(Methyl Methacrylate) Nanocomposites

Inhibitory Effect of Solid Inhibitors on LPG Combustible Mixtures

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