June

ChemBond
ArticlesFeatured
RubberWorld 1681 Views ,

Design and process parameter definitions

ond interview (published in the April 2022 issue of Rubber World) detailed the development and characterization of polymers for polymeric development through computer modeling. This third interview discusses parameters needed to guide product development. Future interviews will discuss polymer product design, analysis and optimization using finite element analysis, and product manufacturing establishment, simulation and fine tuning in molding, extrusion and thermoforming of thermoplastics and thermosets, rubber and plastics

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ArticlesFeaturedThermoplastic Elastomers & Urethanes
RubberWorld 4812 Views , , ,

HeatBoss EPDM: High heat resistant EPDM promising for SAE J200 applications

In modern cars, the space for the engine compartment is continuously shrinking for both functional and aesthetic reasons. Increasing vehicle compactness by reducing the space available for design engineers results in hotter engine components which restrict the rubber materials that can be used. This has boosted a fast growing demand in the rubber industry for elastomer parts with durability and increased resistance to temperature extremes. Among elastomers, silicone elastomers and fluoroelastomers show very effective heat resistance resulting from the strong Si-O and C-F bonds present in their chemical structure. However, the main drawbacks are their high price and high processing cost that make compounding, molding and final production very expensive

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ArticlesAutomotive Elastomers & PartFeaturedOil, Gas & Energy
RubberWorld 3642 Views ,

Seals prevent bearing damage in EVs

Freudenberg Sealing Technologies’ new generation electrically conductive seals prevent bearing damage caused by electrically induced corrosion, and also increase electromagnetic compatibility. Electric cars with drive systems that operate at 800 volts instead of the usual 400 can recharge in just 15 minutes, and produce enough power to drive several hundred kilometers. The power semiconductors in the inverter ensure that the direct current stored in the battery is converted into the alternating current required by the electric motor while driving. These power electronics are often positioned directly above the electric motor, and are also known as electric engine injection systems.

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ArticlesFeaturedSilicone & Medical
RubberWorld 3500 Views , ,

Part design simulations for silicone rubber components

The successful design of medical device components is increasingly dependent on simulations based on finite element analysis (FEA). Simulations provide a rapid and cost-effective way to determine optimal construction of multi-component systems, as well as information on how components interact with each other during use. Investing in accurate, early design simulations can provide significant resource savings by decreasing the amount of iterative loops necessary in the prototype process to validate the overall device design for FDA or other governing body approvals.

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ArticlesFeaturedSilicone & Medical
RubberWorld 6736 Views , , ,

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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silicone
ArticlesFeaturedSilicone & Medical
RubberWorld 3807 Views , , , ,

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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