Kinetics of the thermal degradation and thermal stability of conductive silicone rubber filled with conductive carbon black

Zhang, Jie; Feng, Shengyu; Ma, Qingyu

doi:10.1002/app.12277

Cited by 83 publications

(58 citation statements)

References 16 publications

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“…The thermal stability of SBS is dependent on the sensitivity of the double bonds within the continuous, butadiene phase [22,25]. When dispersed throughout the rubber phase, POSS imparts added stiffness into the matrix by acting as crosslink points and reducing chain mobility [26,27]. This provides thermal stability to the phase upon which the thermal degradation mechanism is dependent.…”

Section: Thermal Stabilitymentioning

confidence: 99%

Novel elastomer dye-functionalised POSS nanocomposites: Enhanced colourimetric, thermomechanical and thermal properties

Spoljaric¹,

Shanks²

2012

Express Polym. Lett.

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Abstract. Nanocomposites consisting of poly(styrene-b-butadiene-b-styrene) (SBS) and polyhedral oligomeric silsesquioxanes (POSS) were prepared using a solvent dispersion method. POSS molecules were functionalised with two dichlorotriazine reactive dyes (CI Reactive Blue 4, CI Reactive Red 2) prior to compounding. Infrared spectroscopy confirmed functionalisation. Scanning electron microscopy revealed an increase in filler aggregation with concentration, with preferential phase selectivity. Ultraviolet spectroscopy and colourimetry confirmed colour uniformity and suggested that colour intensity could be controlled. Functionalised POSS improved thermal stability by imparting restrictions on SBS chain motions. Tensile stress-strain analysis revealed an increase in modulus with filler concentration, while creep deformation decreased and permanent strain increased with POSS content. Storage modulus, loss modulus and glass transition temperature increased with filler content due to effective SBS-POSS interaction. Nanocomposite properties were influenced by the phase the filler was dispersed throughout and the structure of the dye chromophore.

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Section: Thermal Stabilitymentioning

confidence: 99%

Novel elastomer dye-functionalised POSS nanocomposites: Enhanced colourimetric, thermomechanical and thermal properties

Spoljaric¹,

Shanks²

2012

Express Polym. Lett.

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“…8,9 Effect of incorporation of the Cloisite 1 series clays and carbon black to the silicone rubber on its thermal stability was also explored.…”

Section: Introductionmentioning

confidence: 99%

Adhesion properties and thermal degradation of silicone rubber

Kim

Jung

et al. 2006

J of Applied Polymer Sci

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Silicone rubber is suitable for the thermal insulator of the rocket motors owing to its heat resisting properties as well as its excellent elasticity and restoring force. However, the adhesion properties of the silicone rubber should be improved greatly to be used as the thermal insulator because of its poor adhesiveness coming from the low surface tension. Functional groups were incorporated through copolymerization to the silicone rubber to induce chemical reaction with the functional groups in the propellant/liner components to enhance the adhesion properties. Peeling tests results disclosed that the incorporation of amine groups was the most efficient for the adhesiveness enhancement and that addition of carbon black improved the adhesiveness still more. Stability against thermal degradation of the silicone rubber was examined by measuring the activation energy through the thermogravimetric analysis. The results revealed that the compounding of the Cloisite 1 clays boosted up the thermal stability of the silicone rubber much more greatly than that of carbon black.

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“…Thermal gravimetric analysis (TGA) [17] is a classical analytical technique that measures the weight change of a material as a function of temperature due to the chemical reactions of gas liberation or atmospheric absorption. Knowledge of decomposition kinetics [18] offers a rapid alternative to accelerate aging tests for evaluation of lifetime, material composition, oxidation, dehydration and corresponding kinetic constants for exploring the relation between the thermal behavior and microstructure [19].…”

mentioning

confidence: 99%

Kinetic evaluation of the size-dependent decomposition performance of solvent-free microcellular polylactic acid foams

Guo

Wang

et al. 2012

Chin. Sci. Bull.

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A thermal gravimetric method is described for evaluating the kinetics of cell size-dependent decomposition and lifetime estimation for microcellular tissue engineering scaffolds made of biodegradable polylactic acid (PLA) foams. PLA foam cell sizes from 550 to 20 m were fabricated experimentally using a solvent-free solid-state foaming technique under saturation pressures from 1 to 5 MPa. The thermal properties of the PLA foams with respect to the cell sizes were measured using thermal gravimetric analysis in a nitrogen atmosphere and the activation energy and pre-exponential factor were derived to evaluate the decomposition kinetics and estimate lifetime. It was found that small cell sizes can be achieved under high saturation pressures and that the thermal stability of PLA decreases after the fabrication process. The cell size-dependent thermal stability and degradation rate indicate that a PLA foam of larger cell sizes has a shorter degradation time, a few tenths that of the PLA raw material, at a temperature of 37°C. The results suggest that it is feasible to optimize fabrication parameters to obtain appropriate cell sizes and lifetimes that satisfy the application requirements for various organs. This study provides the basis for precise scaffold design and quantitative analysis of PLA foams in tissue engineering applications.tissue engineering scaffold, PLA foam, cell size, thermal gravimetric analysis, decomposition kinetic performance Citation:Guo G P, Ma Q Y, Wang F, et al. Kinetic evaluation of the size-dependent decomposition performance of solvent-free microcellular polylactic acid foams.

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Kinetics of the thermal degradation and thermal stability of conductive silicone rubber filled with conductive carbon black

Cited by 83 publications

References 16 publications

Novel elastomer dye-functionalised POSS nanocomposites: Enhanced colourimetric, thermomechanical and thermal properties

Novel elastomer dye-functionalised POSS nanocomposites: Enhanced colourimetric, thermomechanical and thermal properties

Adhesion properties and thermal degradation of silicone rubber

Kinetic evaluation of the size-dependent decomposition performance of solvent-free microcellular polylactic acid foams

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