PTC effect in carbon black-filled ethylene-propylene-diene terpolymer systems

The effects of carbon black (CB), silica and calcium carbonate (CaCO3) in virgin polyethylene (vPE)/recycle polyethylene (rPE)/ethylene propylene diene terpolymer (EPDM) blends were investigated. rPE was melt blended with EPDM in different ratio by using a Haake Rheomix. The characterization such as swelling analysis and thermal properties were examined. Results indicated that, vPE/rPE/EPDM blend with CB show best oil (ASTM IRM 903) and toluene resistant and also thermal properties compared with silica and CaCO3.

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Effects of low temperature on dielectric properties of ethylene-propylene-diene terpolymer filled with carbon black nanoparticles

2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD) ◽

10.1109/asemd.2015.7453655 ◽

2015 ◽

Cited By ~ 1

Author(s):

Jin Li ◽

Bo Xue Du ◽

Yun Qi Xing ◽

Jian Xun Jin

Keyword(s):

Dielectric Properties ◽

Low Temperature ◽

Carbon Black ◽

Ethylene Propylene ◽

Carbon Black Nanoparticles ◽

Ethylene Propylene Diene Terpolymer

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The effect of polyhedral oligomeric silsesquioxanes (POSSs) incorporation in ethylene-propylene-diene-terpolymer (EPDM): a thermal study

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-021-10994-x ◽

2021 ◽

Author(s):

Ignazio Blanco ◽

Traian Zaharescu

Keyword(s):

Room Temperature ◽

Thermal Characterization ◽

Polyhedral Oligomeric Silsesquioxanes ◽

Dsc Analysis ◽

Γ Irradiation ◽

Scanning Calorimetry ◽

Ethylene Propylene ◽

Oligomeric Silsesquioxane ◽

Ethylene Propylene Diene Terpolymer ◽

Dynamic Heating

AbstractA series of ethylene-propylene-diene-terpolymer (EPDM)/polyhedral oligomeric silsesquioxane (POSS) composites at different percentage of POSS were prepared and subjected to γ-irradiation. Both irradiated and non-irradiated EPDM and composites were investigated by the means of thermal analysis to verify if the presence of POSS molecules is able to reduce the oxidation level of free radicals generated during the degradation and to evaluate the effects of the irradiation. EPDM composites at 1, 3 and 5 mass% of POSS were thus degraded in a thermogravimetric (TG) balance in dynamic heating conditions (25–700 °C), in both inert and oxidative atmosphere by flowing nitrogen and air respectively. Thermal characterization was then completed by carrying out Differential Scanning Calorimetry (DSC) analysis from sub-ambient to better highlight the melting of the polymer and polymer composites occurring just above the room temperature. FTIR spectroscopy was also performed for the prepared samples to check the presence of the molecular filler in the composites and for the TG’s residue at 700 °C, in order to evaluate its nature. DSC and TGA parameters were detected and discussed to have information about the effect of the degradation’s environment, the effect of irradiation on polymer stabilization and the effect of POSS content in the polymer matrix.

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