June 2021
The June 2021 issue of Rubber World Magazine is available online
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June
An overview of the silicone recycling process
With global annual production of silicone expected to grow to 2.9 million tons by 2025, it is increasingly important to have an environmentally-friendly end-of-life option for silicone products. The current solution for discarding silicone scrap is to either landfill or incinerate it. Both of these are detrimental choices for the environment.
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Effects of aerosil on the properties of silicone rubber
Silicones or polysiloxanes belong to a class of elastomers and are often referred to as silicone rubber. The prevailing type of polysiloxanes is polydimethylsiloxane (PDMS). Development began in 1940 when Eugene G. Rochow and Richard Müller independently developed the synthesis of methylchlorosilanes directly from elemental silicon. This discovery marked the beginning of a series of important findings on a new class of materials, namely silicone elastomers. The first silicone based product was a coating for the airplane industry, presented in 1942 by Dow. Presently, silicones are used in thousands of applications. Worldwide, the market for silicone consumption shows steady growth year after year
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Lamination technology for multi-layer hose
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.
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Soft Tissue Compliant Silicones For Medical Devices
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.
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Simulated Service Test: The Way To Predict The Expectation Of Thermal Insulation Coatings Based On Liquid Silicone Rubber
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.
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Exploration Of LPBd In HCR 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.
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