Electrical and mechanical properties of ethylene propylene diene monomer-chloroprene rubber blend loaded with white and black fillers

Younan, A. F.; Abd‐El‐Messieh, S. L.; Gasser, Alain

doi:10.1002/(sici)1097-4628(19981205)70:10<2061::aid-app22>3.0.co;2-f

Cited by 31 publications

(9 citation statements)

References 2 publications

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“…By partial replacement of silica or calcium carbonate by HNTs the number of sulfurating agents was increased and subsequently the t 90 of the vulcanizates decreased. Teh et al14 and Younan et al22 have reported that the high tendency of silica and calcium carbonate to interact with accelerators would lead to increasing of cure time by addition of silica and calcium carbonate. The scorch time, which is the measure of premature vulcanization, means the number of minutes which takes to 2 dNm rise above M L 2.…”

Section: Resultsmentioning

confidence: 99%

The partial replacement of silica or calcium carbonate by halloysite nanotubes as fillers in ethylene propylene diene monomer composites

Pasbakhsh

Ismail

Fauzi

et al. 2009

J of Applied Polymer Sci

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The effect of partial replacement of silica or calcium carbonate (CaCO 3 ) by halloysite nanotubes (HNTs) on the curing behavior, tensile properties, dynamic mechanical properties, and morphological characteristics of ethylene propylene diene monomer (EPDM) composites was studied. Five different compositions of EPDM/Silica/HNT and EPDM/CaCO 3 /HNT compounds (i.e. 100/30/0, 100/ 25/5, 100/15/15, 100/5/25, and 100/0/30 parts per hundred rubber (phr)) were prepared on a two-roll mill. The results indicated that the replacement of CaCO 3 by HNTs increased the tensile strength, elongation at break (E b ), and tensile modulus of composites from 0 to 30 phr of HNTs whereas for silica, the maximum tensile strength and E b occurred at 5 phr loading of HNTs with an enhanced stress at 300% elongation (M300). The curing results show that, with replacement of silica or CaCO 3 by HNTs, the cure time (t 90 ) and cure rate (CRI) were decreased and increased, respectively. Scanning electron microscopy investigation confirmed that co-incorporation of 5 phr of HNTs with silica would improve the dispersion of silica and enhanced the interactions between fillers and EPDM matrix.

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Section: Resultsmentioning

confidence: 99%

The partial replacement of silica or calcium carbonate by halloysite nanotubes as fillers in ethylene propylene diene monomer composites

Pasbakhsh

Ismail

Fauzi

et al. 2009

J of Applied Polymer Sci

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“…The difficulties encountered in the processing and vulcanization of some rubber also emphasize the need for blending. Economic reasons can also be given for blending since appreciable price difference exists between different rubbers for example the resistance of CR to ozone is excellent but its price is high and accordingly blending of CR with cheaper rubber is normally in practice for various applications [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Cure Characteristics, Mechanical and Swelling Properties of Marble Sludge Filled EPDM Modified Chloroprene Rubber Blends

Ahmed¹,

Nizami²,

Raza³

et al. 2012

AMPC

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In the present study, attempts have been made to modify Marble Sludge (MS) filled Ethylene-propylene-diene monomer (EPDM) with Chloroprene rubber (CR). Compounding was carried out on a two-roll mill and vulcanized at 155℃. The modified blend of MS filed EPDM/CR was characterized on the basis of the effect of blend ratio on cure characteristics, mechanical and swelling properties of blends were investigated. The effect of thermal aging on mechanical and swelling behavior in aromatic, aliphatic and chlorinated solvents of cured MS filled EPDM/CR blend was also examined. The minimum torque and maximum torque of the blend first increased and then slightly decreased after the increasing of CR content in MS filled EPDM/CR blends. Scorch time, cure time, cure rate index, tensile strength, tear strength, hardness increased with increasing CR content in the MS filled EPDM compound, but elongation at break, resilience, abrasion loss, mole % uptake, swelling index and percentage of soluble fraction decreased, resilience, abrasion loss, mole % uptake, swelling index and percentage of soluble fraction decreases. Accelerated aging performance of cured composites also influenced by increasing CR content in MS filled EPDM compound

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“…From these figures, it is also clear that the curves relating ε″ and the logarithm of the frequency are broader than a Debye curve,17 indicating that more than one relaxation process is present. These processes could be attributed to mechanisms related to the main chain and its related motions 18, 19. One of the expected mechanisms is related to the Maxwell–Wagner effect, which usually occurs at a lower frequency range for heterogeneous systems.…”

Section: Resultsmentioning

confidence: 99%

Polyester resin as a compatibilizing agent for some polymeric blends

Ward¹,

Mansour²,

Abd‐El‐Messieh³

2008

J of Applied Polymer Sci

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Dielectric and viscosity techniques were used to determine the degree of the compatibility of poly(methyl methacrylate)/polycarbonate, poly(methyl methacrylate)/ polystyrene, and polycarbonate/polystyrene blends in different ratios (25/75, 50/50, and 75/25 w/w). The effect of the addition of 5, 10, and 20% concentrations of the prepared polyester resin [poly(butylene terephthalate adipate)] on the compatibility of these blends was studied. The dielectric properties were measured over a frequency range (from 100 Hz to 100 kHz) at various temperatures covering the glass-transition temperatures of the polymers used (from 30 to 1708C). It was found from the dielectric and viscosity measurements that the addition of 10% polyester to poly(methyl methacrylate)/polycarbonate, 20% polyester to poly(methyl methacrylate)/polystyrene, and 5% polyester to polycarbonate/polystyrene blends enhanced the degree of compatibility of such blends.

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Electrical and mechanical properties of ethylene propylene diene monomer-chloroprene rubber blend loaded with white and black fillers

Cited by 31 publications

References 2 publications

The partial replacement of silica or calcium carbonate by halloysite nanotubes as fillers in ethylene propylene diene monomer composites

The partial replacement of silica or calcium carbonate by halloysite nanotubes as fillers in ethylene propylene diene monomer composites

Cure Characteristics, Mechanical and Swelling Properties of Marble Sludge Filled EPDM Modified Chloroprene Rubber Blends

Polyester resin as a compatibilizing agent for some polymeric blends

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