Today’s News
Teknor Apex installs new Arvitec co-extrusion line in lab at German manufacturing facility
Teknor Apex is announcing the addition of a complete new Arvitec co-extrusion line in their application development laboratory in Rothenburg ob der Tauber, enhancing the capabilities of their European Center of Excellence for plastics research and development. This extrusion line has been completely commissioned and trialed and is ready to support clients’ development projects as well as internal company development projects
Elkem finalizes acquisition of organo-functional silicones plant in France
Elkem announces it finalized the acquisition of a new manufacturing plant to support its growth strategy. The new facility, located in Salaise-sur-Sanne, France, will manufacture high-quality organo-functional silicones for key specialty applications used in markets including Personal Care and Release Coatings.
Smithers hires Lori Knous as general manager for materials testing laboratories in Akron
Knous will manage operations at Smithers’ materials testing laboratories including both analytical and physical properties testing of primarily rubber, plastic, and composite materials. She will oversee a team of experienced testing engineers, chemists, and technicians to deliver excellent customer service and ensure that all quality systems and processes continue to meet industry and client standards.
Doug Moss celebrates his 40th anniversary with DESMA USA
Doug’s service at DESMA started as a draftsman when all technical drawings and plans were still on paper! Today, Doug is responsible for service activities at DESMA USA. He has been instrumental in helping them rebuild their machine shop, not only to service our customers, but also to train our employees. DESMA USA would not be what it is today without Doug Moss
Dunlop Sport MAXX tires are factory standard on Nissan GT-R
Sumitomo Rubber Industries, Ltd. announced that they have begun supplying their high-performance DUNLOP “SP SPORT MAXX GT600 DSST” run-flat tires to Nissan Motor Corporation for use as factory standard tires on their 2022 Model “NISSAN GT-R” and “NISSAN GT-R NISMO,” both of which went on sale this October.
Brenntag’s Brian Bumpass elected as Federal Maritime Commission National Shipper Advisory Committee’s Chair
Brenntag announced that Brian Bumpass, Director of Logistics & Transportation for Brenntag North America was elected as the Federal Maritime Commission (FMC) National Shipper Advisory Committee’s Chair at the inaugural meeting on October 27.
Trelleborg sells printing blanket operations to Continental
Trelleborg divests its printing blanket operation Trelleborg Group has signed an agreement to divest the operation that develops and manufactures printing blankets in polymer-coated fabrics. It is recognized among Assets held for sale in the financial statements. The buyer is Continental, which intends to integrate the operation into its ContiTech business area. Completion of the transaction is subject to the approval of the relevant authorities
Featured Articles
Preparation of polypropylene and skim natural rubber/thermoplastic natural rubber blends: Determining processing conditions
Centrifuged latex production in Sri Lanka contributes over 25% of the country’s annual total rubber production. This share is an increasing trend, when the production figures for the last decade are considered. During the centrifugation process, concentrated or creamed latex with dry rubber content of 60% is separated as centrifuged latex, and 5% to 10% of rubber available in the field latex is removed as the diluted fraction. It has 3% to 5% dry rubber content and a high amount of non-rubbers. This diluted fraction is known as skim latex, and the rubber extracted from acid coagulation of skim latex is referred to as skim natural rubber (SNR).
Company Profile
Making the green tire even greener
Michael Kempf, Head of Market Segment Tires & MRG at Evonik’s Silanes Business Line, outlines how the coupling agent XP Si 466 EXT boosts the sustainability of passenger car tires.
Mixing
Keltan 2470E EPDM Grade for Excellent Electrical Performance in 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
Extrusion
Guill Tool introduces a co-extrusion crosshead designed for irrigation tubing
Guill Tool introduces Series 824, a co-extrusion crosshead designed for irrigation tubing with an emitter tool. Manufactured from stainless steel, this new crosshead features balanced flow design with spiral technology that improves flow characteristics at all extruder speeds. Dual feed ports provide concentric compound flow, while the splits flow from one extruder to feed the inside and outside layers via a manifold assembly. Series 824 is adaptable to all popular extruders on the market currently
Silicone
Custom Profile selects Ineos Styrolution Styroflex 4G80 for medical tubing solution
Custom Profile, a manufacturer of thermoplastic profile extrusions and sub-assemblies, has selected Styroflex 4G80 from Ineos Styrolution, a global provider of styrenics said to supply medical device designers with safe and innovative, next generation medical tubing options.
Oil, Gas & Energy
Thermoplastic polymer has API 610 recognition
CDI Energy Products announced that its latest material to achieve API 610 recognition outperformed service life expectations under extremely corrosive sulfuric acid conditions. API 610 is the standard for centrifugal pumps for the petroleum, petrochemical and natural gas industries. CDI’s proprietary thermoplastic polymer composite, Dures 200, was the foundation for critical components developed for an API 610 vertical single casing diffuser pump (VS1) for a high production sulfuric acid plant. CDI’s material scientists and engineers collaborated with the pump OEM to custom design suction bell eye case rings, bowl eye case rings and bowl bushings which could sustain differential pressures of over 200 psi, coupled with an extreme temperature profile of -20°F to 105°F (-28.8°C to 40.55°C).
Testing & Instruments
Endurica tames road loads with new software release
Endurica LLC announces a new feature in its Endurica CL fatigue solver: automatic block cycle generation. The feature enables users to extract a simplified durability testing schedule (known as a block cycle test) from multi-channel road loads recorded at the testing track. The simplified testing schedule preserves the most essential features of the original road load history, while maintaining the original failure mode and discarding non-critical load history. The capability enables rubber part suppliers to design fatigue tests that execute quickly and that develop realistic damage. It enables car makers to ensure durability under actual driving conditions.
Molding
SmartFlow analysis optimizes silicone and rubber tooling design
Mold design processes today benefit from sophisticated
design software that creates 3D models easily exported to
manufacturing, CAM programming and metal cutting
Thermoplastic Elastomers & Urethanes
Novel value-added thermoplastic elastomers bonding to polyamides
Bonding thermoplastic elastomers to polar and non-polar substrates has been widely studied in the past few decades to create products that enhance ergonomic comfort and functionality. Overmolding a TPE compared to two-shot molding is a litmus test for bonding the material to the substrate. The TPE must wet the cold surface and must melt a few nanometers of the surface of the substrate that is being overmolded on to facilitate bonding.
Latex and Natural Rubber
3D printing of synthetic rubber ink via the direct ink writing process
by Sarath Suresh Kamath and Jae-Won Choi, The University of Akron Natural rubber, which is mainly composed of poly-cis-isoprene and
The November Issue of Rubber World
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