Rates of heat release and related fire parameters for silicones

Buch, Robert R.

doi:10.1016/0379-7112(91)90009-n

Cited by 51 publications

(33 citation statements)

References 1 publication

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“…The available silica is in the form of dust with a low barrier capability that can be easily removed from the surface of boundary layer by the flux of gases within the combustion zone [6]. An increase in the integrity of the boundary layer formed during the combustion of silicone rubbers can be obtained by the incorporation of active fillers into their matrix [18].…”

Section: Flammability Of Silicone Rubber Compositesmentioning

confidence: 99%

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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: 99%

“…On account of their unique properties, including high elasticity, electric resistance, biocompatibility, constancy of physical and mechanical properties with a very wide temperature range, especially a high resistance to the action of external heat source, polysiloxanes have found wider and wider use in various branches of industry [6,7].…”

Section: Introductionmentioning

confidence: 99%

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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“…The amount of deposited silica ash clearly indicates that for small and medium siloxanes, the PHRR of non-SiH-containing siloxanes was higher than that of SiH-containing siloxanes. Previous studies [1,5] on the burning of polydimethylsiloxane fluids have shown that the amount of silica ash deposited depends on the viscosity of PDMS fluids. For low viscosity polydimethylsiloxane fluids (viscosity 550 cS), only small amounts of silica ash were deposited on the surface of materials, and most of the silica ash was carried away by the buoyant fire plume.…”

Section: Sih-containing Siloxanementioning

confidence: 99%

“…The cone calorimeter has been recognized as the best tool for measuring the heat release rate of materials during burning. It has been used to study the flammability of silicone materials since 1986, and numerous data have been published in the literature [1][2][3][4][5][6][7][8]. The burning behaviors of some selected silicon intermediates have been studied by Hshieh [8] using a cone calorimeter.…”

Section: Introductionmentioning

confidence: 99%

Burning behaviors of selected chlorosilanes and SiH‐containing siloxanes

Hshieh

Beeson

2004

Fire and Materials

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SUMMARYChlorosilanes are silanes containing the Si-Cl functional group and SiH-containing siloxanes are siloxanes containing the Si-H functional group. Some chlorosilanes and SiH-containing siloxanes present potentially high fire or explosion hazards during handling, storage, transport and process operations. Cone calorimeter tests have been used to study the burning behaviors of selected chlorosilanes and SiHcontaining siloxanes at various incident heat fluxes to simulate pool fire burning. The peak heat release rate of a silicon intermediate obtained from the cone calorimeter at 15 kW=m 2 incident heat flux was very close to that measured by a relatively large-scale field test. The flammability of monochlorosilanes was similar to that of organic hydrocarbons having comparable volatility. The flammability of chlorosilanes descends in the order of monochlorosilanes, dichlorosilanes and trichlorosilanes. SiH-containing siloxanes ignited faster than non-SiH-containing siloxanes because of the reactive silicon-hydrogen linkages. The ignition of SiH-containing siloxanes was much more violent than the ignition of non-SiH-containing siloxanes. The SiH-containing siloxanes exhibited a lower peak heat release rate, less total heat released and a lower peak smoke extinction coefficient compared with non-SiH-containing siloxanes having comparable volatility.

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“…From the review of source literature, it follows that a considerable improvement in fire resistance of polymeric materials can be obtained with the use of polysiloxanes in their production [3][4][5]. The commercial production of silicone polymers began in 1940.…”

Section: Introductionmentioning

confidence: 98%

Influence of cenosphere particles on thermal properties composites of silicon rubber

Rybiński

Żukowski

Bradło

2015

J Therm Anal Calorim

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The study presents the investigation results concerning the thermal properties of non-cross-linked and cross-linked silicone rubber with organic peroxide. The rubber was filled with mineral fillers such as cenospheres, including cenospheres covered with iron, attapulgite, wollastonite, aluminum hydroxide and silica. The thermal stability of the silicone rubber was considered from the point of view of the mineral fillers used, particularly taking into account the modern cenospheric filler. Thermal analysis was carried out under both air and a neutral gas at temperatures ranging from 120 to 700°C. The activation energy value of the silicone rubber destruction was determined with the use of the non-isothermal method of Flynn-Wall-Ozawa.

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Rates of heat release and related fire parameters for silicones

Cited by 51 publications

References 1 publication

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

Burning behaviors of selected chlorosilanes and SiH‐containing siloxanes

Influence of cenosphere particles on thermal properties composites of silicon rubber

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