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One of the largest Chinese producers of PDM drilling tools, Orient Energy & Technology Ltd., has found that graphene nanotubes improve abrasion resistance of the rubber stator by 20 % and increase tensile modulus by 30 %, resulting in a shortened drilling cycle, reduced energy consumption and less environmental pollution from the drilling equipment. Orient Energy & Technology has completed laboratory testing of nitrile butadiene rubber (NBR) containing Tuball graphene nanotubes supplied by Ocsial. According to Ocsial just 1.7 wt% of graphene nanotube concentrate introduced into NBR was found to increase the tensile modulus by 30 %.

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In this work a new laboratory test equipment is presented, that allows for the definition of suitable load conditions (force, rotational speed, impact incidence). The Instrumented Chip & Cut Analyzer (ICCA) collects all relevant data during the test. Using a mathematical algorithm, realistic and reliable answers on CC behaviour of the rubber are derived from the measurements.

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The STS twin screw extruder from Coperion is celebrating its 15th birthday in 2019. Just in time for this anniversary, the company has expanded the series by one more size: the STS 25 Mc11 extruder with a 25 mm screw diameter is designed especially for research and development tasks as well as for production of small batch sizes of 2 kg and more, achieving throughputs of up to 90 kg/h. It will be shown for the first time at Chinaplas 2019.

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In spring 2020, the IKV - Institute for Plastics Processing in Industry and Craft at RWTH Aachen University will hold an International Symposium on Plastics Technology in Aachen, and invites scientists from all over the world to submit papers. The scientific symposium will be held entirely in English on 10 March 2020, the day before the IKV Colloquium. IKV is calling for abstracts for papers or suggestions for posters in English for initial appraisal by 15 May 2019.

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Danish shoe designer Ecco, together with Dow and French software company Dassault Systèmes recently introduced the Quant-U footwear customisation for shoes. Quant-U is an experimental footwear customisation project by the Innovation Lab (ILE), Ecco’s independent cross-disciplinary design studio.

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Material Data Center is a major information platform for plastics. Based on users' requests, the database has now been extended to typical information about plastics additives. The system provides physical data, chemical formulas and compatibility information.

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The transition period for the Elastomer Guideline published by the Umweltbundesamt (UBA), Germany’s federal environmental agency, for assessment of elastomers in contact with drinking water, ends on 31 December 2021. Sulphur cross-linked compounds currently in use in drinking water applications can no longer be used after that time. The German rubber compounder Kraiburg based in Waldkraiburg in Bavaria has succeeded in developing compounds that can be used in elastomer solutions for drinking water applications after that date.

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Rubber/metal composites tend to fail prematurely due to loss of adhesion of the rubber to the metal substrate, when they are exposed to aggressive conditions such as marine environments. The aim of this work is to elucidate the adhesion failure mechanism by cathodic disbonding and anodic undermining tests using a commercial bonding system for bonded rubber/metal.

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The Hamburg-based German company Albis Plastic GmbH will present its product portfolio of high-performance plastics, compound solutions and masterbatches with a focus on automotive, healthcare and lighting applications at Chinaplas 2019 from 21 – 24 May 2019 in Guangzhou, China.

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With the help of a virtual DoE different injection points (red crosses) are compared regarding injection pressure and air entrapments for an LSR pot cloth. While Design 15 and 43 have a high risk of undesired air bubbles, Design 33 combines a good filling behaviour with a low pressure demand. (Source: Sigma)

The German company Sigma Engineering GmbH from Aachen is presenting its Sigmasoft Virtual Molding software and the enclosed Autonomous Optimization technology at various exhibitions in spring 2019. The software helps to find the ideal configuration of part, mould and process in one calculation. The Autonomous Optimization and the included possibility to conduct virtual Design of Experiments (DoE) help the users to improve existing injection moulding tools and processes as well as to virtually test different configurations and innovative approaches.

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Due to environmental and sustainability concerns, it is desirable to replace mineral oil with vegetable oils as processing aids and plasticizers in rubbers. In this paper the effect of four polymerized soybean oils of high viscosity on processing and physical properties of EPDM rubber in a standard sulfur-cured formulation is evaluated.

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