Today’s News
ACE is now a CRRC accredited independent testing lab
ACE is now one of only six CRRC Accredited Independent Testing Labs in the USA approved to perform radiative property testing for the CRRC Product Rating Programs for Roofing and Exterior Wall Products.
Rahco Rubber celebrates their 50th anniversary
Rahco Rubber is celebrating it’s 50th anniversary. Founded by Bill Anton in 1972, Rahco Rubber first location was just 5,000 ft² in Des Plaines, Illinois.
International Institute of Synthetic Rubber Producers publishes the 2022 edition of worldwide rubber statistics
The International Institute of Synthetic Rubber Producers (IISRP) has published the 2022 edition of Worldwide Rubber Statistics, the world’s leading source for authoritative data about synthetic rubber.
Firestone Agriculture announces price increase for U.S. and Canada
In response to market dynamics and conditions, including increasing costs of raw materials and logistics, Firestone Agriculture will increase prices up to 10% on select products within its Firestone Ag Tire, Track, and Bladder portfolios, in both the U.S. and Canada, effective Sept. 1, 2022. Price adjustments will be implemented at the specific pattern and article level for each business. Members of the Firestone Ag Sales teams are contacting customers to provide more detailed information about the changes.
Continental relies on bio-attributed PVC BIOVYN for technical and decorative surface materials
Continental is going to use BIOVYN™, bio-attributed PVC, from INOVYN in the production of its technical and decorative surface materials for its automotive customers. The agreement will help to reduce its carbon footprint and meet customer demand for sustainable bio-based products.
Bolder Industries and Liberty Tire formalize partnership to advance circularity in the US market
Bolder’s Terre Haute facility will process an estimated 3 million end-of-life tires from Liberty’s feedstock by the end of 2023
Wacker to premier self-adhesive liquid silicone rubber Elastosil LR at K 2022
WACKER will be premiering its novel ELASTOSIL® LR 3078 product series at K 2022 International Trade Fair for Plastics and Rubber. These self-adhesive liquid silicone rubber grades cure extremely fast and establish a firm bond with the thermoplastic polycarbonate without the need to pretreat its surface. ELASTOSIL® LR 3078 was designed for two-component injection molding and enables cost-effective large-scale production of multicomponent parts, such as those needed in medical technology and the automotive industry. This year’s K show will take place in Düsseldorf, Germany, from October 19 to 26.
Featured Articles
High efficiency twin screw extruder
The demand for performance and consistency of elastomer based compounds is growing quickly in all fields (tire, technical rubber goods, cables). Specifications regarding physical, mechanical and chemical properties, as well as “visual aspects” properties of the finished products are becoming more and more strict.
During compound production, all operations are involved, from the weighing to the storage of the semi-finished mixed compounds. The mixing operation plays a very important role, since it is the step where all ingredients are incorporated, dispersed and distributed.
Mixing
Effect of accelerator mixing ratio on curing characteristics of EPDM gasket materials
In a four-person household, the washing machine is in operation about one and a half hours a day. On average, it washes, rinses and spins about 250 times a year, cleaning some 1,000 kilograms of dirty laundry, an amount that is increasing all the time. Its components, particularly the rubber hose systems and rubber gaskets, are subjected to greater chemical and mechanical stresses than just about any other household appliance. Moisture, detergents and cleaning agents, particularly alkaline agents, as well as high water temperatures must not have an adverse effect on the material. Due to the long service life of the washing machine, all polymer parts, especially rubber parts, need to have a service life of at least 10 years, which means excellent resistance to aging.
Extrusion
High efficiency twin screw extruder
The demand for performance and consistency of elastomer based compounds is growing quickly in all fields (tire, technical rubber goods, cables). Specifications regarding physical, mechanical and chemical properties, as well as “visual aspects” properties of the finished products are becoming more and more strict.
During compound production, all operations are involved, from the weighing to the storage of the semi-finished mixed compounds. The mixing operation plays a very important role, since it is the step where all ingredients are incorporated, dispersed and distributed.
Silicone & Medical
Wacker announces expansion of silicone production facilities in Charleston, Tennessee
Wacker Chemie AG is preparing to build a new silicone production complex at its Charleston site in the US state of Tennessee. The Munich-based chemical group has already started a feasibility study. In a first step, it is planned to build production plants for high-consistency silicone rubber and silicone sealants, used, for example, in construction applications. In addition, plants are to be built for the manufacture of intermediates
Oil, Gas & Energy
Lanxess new prepolymer degrades in aqueous and hot applications for oil and gas
LANXESS is adding to its extensive range of polyurethane (PU) systems for the oil and gas industry with a new prepolymer: Adiprene® Degrade 80C AQ90A. It can be used to manufacture elastomer components that can be deployed in temporary challenging applications and break down by themselves in warm (from 50 to 93ºC) and wet environments after a defined period of time
Testing & Instruments
The DMYO-V oscillograph
Properties of elastomers can be measured and computed by the DMYO-V oscillograph.
Molding
Troubleshooting a mold for injection molding
Opportunities abound in the rubber industry for polymers/ingredients suppliers, compounders,
processors, designers, mold makers and end users to embrace polymer flow analysis.
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
Cariflex breaks ground on world’s largest polyisoprene latex plant in Singapore
Cariflex Pte. Ltd. (Cariflex), broke ground at a 6.1 hectares site in Jurong Island, Singapore. Cariflex will be constructing the world’s largest and Singapore’s first polyisoprene latex plant on this site. Driven by a strong commitment to better serve its global customers in medical and consumer products, this investment represents the largest capacity expansion in Cariflex’s existing accomplishments.
The July Issue of Rubber World
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