Today’s News
Hallstar agrees to purchase LANXESS’ polymer additives production site in Greensboro, NC
Hallstar, a specialty chemical company servicing both the industrial and beauty markets, has agreed to acquire LANXESS’ ester manufacturing facility in Greensboro, NC.
UTH introduces new technology for the economical reworking of material in rubber processing
– At ITEC 2022 which takes place at the John S. Knight Center in Akron, Ohio (USA) from September 13 to 15, UTH GmbH from Fulda/Germany will be presenting its extended product range and its innovative solution for reworking material generated in rubber processing: the TRP Reworker System.
William Mars, PhD, named 2022 Harold Herzlich award winner
William Mars, PhD, Founder and President of Endurica, LLC, is the recipient of the 2022 Harold Herzlich Distinguished Technology Achievement Award. He will be recognized during a special event on Wednesday, Sept. 14, at the International Tire Exhibition & Conference (ITEC) 2022, the largest tire manufacturing exhibition and conference in the U.S., which is being held Sept. 13-15 at the John S. Knight Center in Akron, Ohio.
USTMA predicts record year for US tire shipments
The U.S. Tire Manufacturers Association (USTMA) projects total U.S. tire shipments of 342.1 million units in 2022, compared to 335.2 million units in 2021 and 332.7 million units in 201
Ohio State professor Kartina Cornish is pioneering sustainable rubber
Her approach has led to refining two crops that produce latex: the TK Dandelion (or Buckeye Gold) — which she grows at Ohio State’s Wooster campus — and guayule, a shrub that grows in the desert. Not only can these be grown in fields and harvested annually, but she’s also developed a hydroponic approach to growing the TK Dandelion, which can be harvested every two months.
AkzoNobel announces an extraordinary general meeting (EGM) to be held on September 6, 2022
AkzoNobel announces an Extraordinary General Meeting (EGM) to be held on September 6, 2022.
Apollo Tires launches EV specific tires for passenger cars and two wheelers
Apollo Tires has introduced specific tires for electric vehicles (EVs) for both, passenger vehicles and two-wheelers. Apollo Amperion range of tires for the PV segment, whereas Apollo WAV range for the two-wheelers, were launched for the Indian market.
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.
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