Articles – Page 49 – Rubber World – The Technical Service Magazine for the Rubber Industry

Keltan 2470E EPDM Grade for Excellent Electrical Performance in Wire and Cable

March 18, 2021 RubberWorld 4900 Views arlanxeo, epdm, keltan, wire and cable

Ethylene propylene diene polymers (EPDM) are the most widely used rubbers in the range of available synthetic rubbers for non-tire applications. Due to the unsaturated backbone, EPDM can be employed in various applications in which characteristics such as resistance to ozone, heat and moisture, flexibility at low temperatures, a wide range of tensile strength and hardness levels, and excellent electrical insulating properties are important

Articles Mixing

Simultaneous Effects of Mixing Parameters on Internal Mixing of Rubber and Carbon Black Using Response Surface Methodology

March 18, 2021 RubberWorld 5429 Views carbon black, intermeshing rotor internal mixer, mixing, response surface method

In order to investigate all the effects of the processing parameters on the mixing properties without having to do a number of experiments, the statistical tool, called response surface methodology (RSM), has been used. This technique has the capability to evaluate all the effects of the parameters on the responses, which include linear, non-linear and interaction effects. Simultaneous Effects of Mixing Parameters on Internal Mixing of Rubber and Carbon Black Using Response Surface Methodology

Articles Featured Mixing

Use of Tire-Derived and Scrap-Derived Polymers in Tire and Non-Tire Applications

March 18, 2021 RubberWorld 4566 Views 2021, March, micronized rubber, recycle, scrap rubber, scrap tires, tire derived fuel

The disposal of scrap rubber has been a concern since its vulcanization with sulfur and heat was accidentally discovered by Charles Goodyear in 1839. In addition to the scrap generated in production, there is the question of discarded rubber goods that have outlived their usefulness for their original function. Traditionally, this waste had ended up in landfills, contributing to the growing problem of overcrowding. Scrap tires are a well-publicized category of scrap rubber, as each year automobiles produce 246 million waste tires in the United States alone.

Articles Oil, Gas & Energy

Lamination technology for multi-layer hose

March 10, 2021 RubberWorld 3632 Views AGC Chemicals, automotive, fluoroelastomers, hoses, June

Fluoroelastomer lamination technology for multilayer automotive hose constructions is said to be ideal for use in high-pressure, high-temperature areas near the engine, where they are also exposed to NOx, SOx, engine oils or other aggressive automotive fluids. AGC Chemicals Americas՚ AFLAS FEPM fluoroelastomers can withstand continuous service temperatures up to 200°C and have excellent acid, base, amine and steam resistance.

Articles Oil, Gas & Energy

Thermally conductive elastomer for EV parts

March 10, 2021 RubberWorld 4244 Views 2020, conductive, elastomer, EV, Freudenberg, october

Freudenberg Sealing Technologies (FST) has developed a thermally conductive elastomer that combines seemingly contradictory properties: It conducts heat well, but is also electrically insulating. FST is already testing initial applications for charging sockets, control units and batteries in electric vehicles.

Articles Oil, Gas & Energy

Eliminating leaks in the gas meter industry

March 10, 2021 RubberWorld 3692 Views 2020, December, diaphragms, Freudenberg, gas meters, seals

In the safety-driven natural gas industry, system leaks are a dangerous and costly issue. Residential gas meters and regulators, in particular, are at risk when crucial components such as diaphragms are not optimally designed and manufactured for the environment in which they will work.

Articles Silicone & Medical

Soft Tissue Compliant Silicones For Medical Devices

March 8, 2021 RubberWorld 1340 Views 2018, gelest, June, nanocomposites, silicone

ExSil silicone nanocomposites are the first in a series of ultrahigh elongation materials that achieve their unique mechanical properties via a radically different mechanism than traditional silicones. Traditional silicones rely on formation of chemically crosslinked chain networks for their elastomeric properties. ExSil nanocomposites, on the other hand, rely on mechanically interlocked polymer chains.

Articles Silicone & Medical

Simulated Service Test: The Way To Predict The Expectation Of Thermal Insulation Coatings Based On Liquid Silicone Rubber

March 8, 2021 RubberWorld 1650 Views 2020, June, oil and gas, silicone, subsea

Silicone rubber has decades of field history in high temperature automotive uses, exterior glazing and fenestration, and other demanding applications, but is only recently being used for passive thermal insulation coatings on various subsea structures in oil and gas production.

Articles Silicone & Medical

Exploration Of LPBd In HCR silicone

March 8, 2021 RubberWorld 1112 Views 2019, chemical resistance, fluoropolymers, June, silicone

Silicone has always been a superior polymer for heat stability. Its ability to withstand higher temperatures than any other polymer has prompted its growth in high heat applications, such as automotive. Many high temperature applications are also exposed to chemicals. Many VMQ silicones alone cannot meet the chemical resistance specification on these applications. Therefore, specialty fluoropolymers are used in these applications where high temperature and chemical resistance are needed.

Articles Extrusion

Dimensional Change Resulting From Swell And Drawdown Of Extruded Polymers

March 8, 2021 RubberWorld 2940 Views 2019, extrusion, May

Understanding and predicting how extruded profile dimensions change along an extrusion line contribute significantly to the design of shaping dies and the effectiveness of dimensional control. Upon exiting the extrusion die, the dimensions of nonsymmetric profiles change non-uniformly along the line due to swell and drawdown.