Results 171 to 180 of about 2,251 (221)

Synthesis and Characteristics of MAH-g-EPDM Compatibilized EPDM/NBR Rubber Blends

Journal of Elastomers & Plastics, 2006
Maleated ethylene-propylene diene monomer rubber (MAH-g-EPDM) was prepared on a two-roll mill and tested as a compatibilizer for EPDM/NBR (butadiene-acrylonitrile rubber) blend. Intrinsic viscosity measurements and scanning electron microscopy revealed that MAH-g-EPDM improved the compatibility and morphology of EPDM/NBR blend.
S. H. Botros, M. L. Tawfic
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EPDM Elastomers in Rubber Modified Plastics

Rubber Chemistry and Technology, 1971
Abstract The superior resistance of EPDM to thermal and ultraviolet degradation makes the use of this elastomer particularly attractive in rubber modified plastics. Because of difficulty in grafting onto EPDM compared to polybutadiene or SBR, conventional emulsion polymerization processes do not give products with the desired balance of ...
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Co-Curing of EPDM and Diene Rubbers by Grafting Accelerators Onto EPDM

Rubber Chemistry and Technology, 1974
Abstract The object of this work was to find ways to co-cure blends of EPDM and diene rubbers for improved properties. We found that by grafting accelerators onto EPDM we obtain excellent cure compatibility between EPDM and natural rubber.
K. C. Baranwal, P. N. Son
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EPDM Rubber Technology

2000
EPDM is the designation agreed upon by ASTM and IISRP for ethylene-propylene rubber, where "E" and "P" stand for ethylene and propylene, respectively. "D" designates the nonconjugated diene that provides a site of unsaturation for sulfur vulcanization, and "M" refers to the polymethylene saturated backbone of the polymer, i.e., CHr(CH2 )n-CH2 (Fig. 1)
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Nonlinear Viscoelasticity of Noncrystalline EPDM Rubber Networks

Journal of Rheology, 1986
An experimental study has been carried out to specify the nonlinear viscoelastic behavior of noncrystalline peroxide‐cured EPDM networks covering a range in elongation ratios between one and seven. Stress‐strain curves, measured at constant rates of elongation at 300, 345, and 390 K, are analyzed with two recently published methods.
Boudewijn J. R. Scholtens, Paul J. R. Leblans   +1 more
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Graft copolymers from peroxidized EPDM rubber

Journal of Applied Polymer Science, 1986
AbstractThe transition metal catalyzed peroxidation of the pendant allylic functionality in EPDM rubbers with tertiary butyl hydroperoxide results in elastomeric, high polymer peroxides. The peroxidized EPDM rubbers are useful as free radical initiators for the polymerization and grafting of vinyl monomers in the preparation of comb‐type structures ...
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Study on foaming water‐swellable EPDM rubber

Journal of Applied Polymer Science, 2002
AbstractA foaming ethylene propylene diene terpolymer (EPDM) water‐swellable rubber (WSR) was prepared using the multicomponent mechanical blending technology. The morphology of unfilled and silica‐filled foaming EPDM WSR was studied from micrographs. The average cell size, maximum cell size, and cell density of the foaming WSR had a peak value with a ...
Xiaohong Sun, Guo Zhang, Qiang Shi, Benchen Tang, Zhongwen Wu   +4 more
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Measuring Water Permeation Through EPDM Rubber Hoses

2019 18th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2019
Knowledge of the rates of water permeation through rubber hoses as a function of internal pressure, ambient temperature and relative humidity is important for designing water-cooled systems. The high-performance mainframe hardware, critical to cloud-computing, keeps shrinking, reducing the volume of space available for the cooling system, which ...
Prabjit Singh, Larry Palmer
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Ultrasonic properties of ENR-EPDM rubber blends

Polymer Bulletin, 2003
The velocities of propagation of longitudinal and transverse ultrasonic waves in epoxidized natural rubber-ethylene propylene diene monomer (ENR-EPDM) blends with EPDM content of 0,25,50,75 and 100 weight percent were measured at a frequency of 2 MHz using pulse echo method. Density of the rubber blend was also measured.
Hesham A. Afifi, Ahmed M. El Sayed
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EPDM RUBBER- WHAT IS MAXIMUM SERVICE TEMPERATURE?

SAE Technical Paper Series, 1977
<div class="htmlview paragraph">What is the maximum service temperature of any rubber compound? Certainly the application environment determines the types of rubber,grades of rubber, and optimum compounding technology that can be used. The cost/performance relationship then determines the rubber compound that will be used in a given application ...
R. D. Allen, P. D. Hinckley
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