Curing characteristics, tear, fatigue, and aging properties of bentonite-filled ethylene-propylene-diene (EPDM) rubber composites

2017 ◽  
Vol 24 ◽  
pp. E77-E84 ◽  
Author(s):  
Hanafi Ismail ◽  
Nurus Sakinah Che Mat ◽  
Nadras Othman
Keyword(s):  
Rubber Composites ◽  
Epdm Rubber ◽  
Ethylene Propylene ◽  
Curing Characteristics ◽  
Aging Properties

scholarly journals Characteristics of Wood Sawdust/EPDM Rubber Composites Processed by Irradiation

2019 ◽  
Vol 135 (5) ◽  
pp. 1058-1060
Author(s):  
G. Craciun ◽  
E. Manaila ◽  
M.D. Stelescu ◽  
D. Ighigeanu
Keyword(s):  
Rubber Composites ◽  
Epdm Rubber ◽  
Wood Sawdust

scholarly journals Ionic Liquids and Calcium Oxide Grafted with Allylmalonic Acid Applied to Support the Peroxide Crosslinking of an Ethylene–Propylene Copolymer

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3260
Author(s):  
Magdalena Maciejewska
Keyword(s):  
Ionic Liquids ◽  
Silica Nanoparticles ◽  
Calcium Oxide ◽  
Crosslink Density ◽  
Ethylene Propylene ◽  
Rubber Compounds ◽  
Curing Characteristics ◽  
And Performance ◽  
Crosslinking Reactions ◽  
Thermal Stability Of

Nanosized calcium oxide (CaO) featuring a surface grafted with allylmalonic acid (ALA) was used to increase the efficiency of the peroxide crosslinking of an ethylene–propylene copolymer (EPM) filled with silica nanoparticles. In this study, 1-butyl-3-methylimidazolium ionic liquids (ILs) with different anions were applied to improve the dispersion of CaO/ALA and silica nanoparticles in the EPM copolymer, as well as to catalyze the interfacial crosslinking reactions. In this article, we discuss the effects of CaO/ALA and ILs on the curing characteristics, vulcanization temperature, crosslink density, mechanical properties, and thermal stability of EPM, as well as the resistance of EPM to weather aging. The CaO/ALA with ILs reduced the vulcanization time of the rubber compounds without a significant effect on the vulcanization temperature. Their application resulted in an increased vulcanizate crosslink density, as well as improved tensile strength compared to the pure peroxide system. The influence of 1-butyl-3-methylimidazolium ILs on EPM vulcanization and performance depends on the anion present in the molecules of the ionic liquid. The most active IL seems to be that with the tetrafluoroborate anion.

Heat dissipative mechanical damping properties of EPDM rubber composites including hybrid fillers of aluminium nitride and boron nitride

Soft Matter ◽  
2020 ◽  
Vol 16 (29) ◽  
pp. 6812-6818 ◽  
Author(s):  
Jung Keun Cho ◽  
Hanna Sun ◽  
Hee Won Seo ◽  
June-Young Chung ◽  
Mina Seol ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Electronic Devices ◽  
Damping Properties ◽  
Critical Factors ◽  
Rubber Composites ◽  
Epdm Rubber ◽  
Hybrid Fillers ◽  
Automotive Parts ◽  
Mechanical Damping

As highly integrated electronic devices and automotive parts are becoming used in high-power and load-bearing systems, thermal conductivity and mechanical damping properties have become critical factors, which could be enhanced by the composites with the different-shaped hybrid fillers.

scholarly journals Optimization of Accelerator Mixing Ratio for EPDM Rubber Grommet to Improve Mountability Using Mixture Design

2019 ◽  
Vol 9 (13) ◽  
pp. 2640 ◽  
Author(s):  
Young Shin Kim ◽  
Yong Tae Kim ◽  
Euy Sik Jeon
Keyword(s):  
Mechanical Properties ◽  
Design Strategy ◽  
Mixture Design ◽  
Vehicle Body ◽  
Mixing Ratio ◽  
Epdm Rubber ◽  
Ethylene Propylene ◽  
Rubber Compounds ◽  
The Wire ◽  
Vulcanization Accelerator

A grommet, made of ethylene propylene diene methylene (EPDM) rubber, is an integral part used for fixing and protecting the wire inserted from the outside to the inside of vehicles. Rubber compounds exhibit various mechanical properties and vulcanization characteristics depending on the accelerator mixing ratio. These mechanical properties affect the insertion and detachment forces when the grommet is manufactured and fixed to the vehicle body. In this study, we experimentally analyzed the changes in the properties of EPDM rubber depending on the vulcanization accelerator to improve the mounting performance of the grommet, and subsequently derived the optimum accelerator mixing ratio. We implemented a mixture design strategy to derive the optimum mixing ratio for obtaining the desired mechanical properties and vulcanization characteristics. The insertion and separation forces of the existing grommet were compared with those of the grommet fabricated using the derived mixing ratio and we found that the mounting performance was improved compared to the existing grommet.

scholarly journals Durability and Electrical Conductivity of Carbon Fiber Cloth/Ethylene Propylene Diene Monomer Rubber Composite for Active Deicing and Snow Melting

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2051
Author(s):  
Shuanye Han ◽  
Haibin Wei ◽  
Leilei Han ◽  
Qinglin Li
Keyword(s):  
Composite Material ◽  
Carbon Fiber ◽  
Ethylene Propylene Diene Monomer ◽  
Snow Melting ◽  
Epdm Rubber ◽  
Ethylene Propylene ◽  
Carbon Fiber Cloth ◽  
Rubber Composite ◽  
The Impact ◽  
Functional Components

To reduce the impact of road ice and snow disaster, it is necessary to adopt low energy consumption and efficient active deicing and snow melting methods. In this article, three functional components are combined into a conductive ethylene propylene diene monomer (EPDM) rubber composite material with good interface bonding. Among them, the mechanical and electrical properties of the composite material are enhanced by using carbon fiber cloth as a heating layer. EPDM rubber plays a mainly protective role. Further, aluminum silicate fiber cloth is used as a thermal insulation layer. The mechanical properties of EPDM rubber composites reinforced by carbon fiber cloth and the thermal behaviors of the composite material in high and low temperature environments were studied. The heat generation and heat transfer effect of the composite were analyzed by electrothermal tests. The results show that the conductive EPDM rubber composite material has good temperature durability, outstanding mechanical stability, and excellent heat production capacity. The feasibility of the material for road active deicing and snow melting is verified. It is a kind of electric heating deicing material with broad application prospects.

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