Welcome at ERT Elastomer Research Testing B.V.

Founded in 2003 Elastomer Research Testing B.V. offers a complete range of equipment and know-how for testing elastomers and rubbercompounds. The laboratory is very well equipped and the founders have extensive, academic and practical knowledge and experience in the rubber industry. Choosing ERT as a partner extends the research capacity and enlarges the competitive force without investing large amounts of money in expensive laboratory equipment.CV-tje Dr. Ir. Johan Baaij studied organic chemistry at the University of Utrecht and polymer chemistry at the University of Twente. From 1982 he studied rubber technology at the University of Twente and started his career in the rubber industry for Helvoet BV, Hellevoetsluis-NL. Here he worked on the development of combined rubber-plastic parts for the automotive industry, adhesion technology and compounding of oil-resistant specialty elastomers. In 1988 he joined the Business unit Rubber Chemicals of Akzonobel in Deventer-NL and started there with the creation of the rubber chemicals applications laboratory. Next to the managing of the laboratory he organized courses rubber technology for Akzonobel employees and was responsible for the compounding for the application research on rubber chemicals. In 1995 the joint-venture Flexsys B.V. was formed from the merger of Monsanto Rubber Chemicals and the BU Rubber Chemicals of Akzonobel. In Flexsys he was responsible for the applications laboratory and member of the Marketing Technical Service group. From 1998 he was also involved with the development of New Products. After the decision of Flexsys B.V. to terminate the application research and to close down their laboratory in Deventer he started together with Jan van Kranenburg Elastomer Research Testing B.V. in this way continuing the activities of the Flexsys rubber laboratory with all the equipment. Johan Baaij is an invited lecturer for the annual rubber course at the University of Twente, chairman of the Dutch society of rubber technologists (VKRT), chairman of the Dutch standardization committee for ISO TC45 (Rubber and rubber products) and was more than ten years chairman of the steering committee for rubber education in the Netherlands (SORK). Jan van Kranenburg (LPRI) is already working in the rubberindusry for more then 30 years. He started his career at Helvoet bv,Hellevoetsluis-NL,a high-tech producer of rubber and thermoplastic parts. Beginning as a lab-technician he left the company after 10 years as an educated rubbertechnician responsible for compound-development for extrusion and rubber-rollers. He then changed over to Rubberindustrie Soest-NL where he was responsible for the mixing-room,quality and material development. He continued his career at Flevo Rubber,Lelystad-NL as managing director. At that time Rubber Industrie Soest and Flevo Rubber were sister-companies. In total he worked also 10 years for these companies. In 1989 he decided to start his own company called Polycomp bv,Vorden-NL. Under his leadership Polycomp bv - a specialist in developing and producing high-quality rubbercompounds growth to 20 employees and a yearly turnover of approx. EURO 3,5 million. In 2002 Polycomp bv was sold. In 2003 together with Johan Baaij he started Elastomer Research Testing bv,Deventer-NL. Rubber test mixes -- Preparation, mixing and vulcanization Preparation of Test Pieces Vulcanisation characteristics - Oscillating Disk Rheometer Vulcanisation characteristics - Moving Die Rheometer Mooney Viscosity of Natural and Synthetic polymers Mooney Scorch of unvulcanised rubber Delta Mooney of oil extended ESBR Mooney Relaxation of unvulcanised rubber Measurement of Cure and After-Cure Dynamic Properties Using a RPA Density Determination of vulcanised rubber IRHD and Micro-IRHD determination of vulcanisates Shore A and Shore D of vulcanisates Indentation Hardness by means of pocket hardness meters Tensile stress-strain properties of vulcanised rubber Determination of green strength Tear resistance of vulcanised rubber Tear resistance of vulcanised rubber (Delft test pieces) Resilience with Rebound Pendulum of vulcanised rubbers Compression Set of vulcanised rubber Tensile Set of vulcanised rubber Staining of Surfaces (Contact, Migration, Diffusion) Accelerated ageing of vulcanised rubber Flex cracking and crack growth (De Mattia) Static Ozone Cracking resistance of vulcanised rubbers Dynamic Ozone Cracking resistance of vulcanised rubbers Abrasion resistance of vulcanised rubbers Effects of liquids on Mass, Volume and Size of vulcanisates Heat Build-Up Part 3: Compression flexometer Dynamic properties of vulcanized rubber Extension Cycling Fatigue Brittleness Temperature by impact of vulcanised rubbers Determination of static adhesion to textile cord - H-pull test Determination of adhesion to wire cord Stress Relaxation in compression Determination of Visco-elastic Properties of elastomers Assessment of carbon black dispersion - Rapid comparative methods Method for determination of creep in compression or shear SREs for characterizing the effect of liquids on vulcanized rubbers Retraction at Low Temperatures - TR test for vulcanised rubbers Stiffening at Low Temperature (Gehman apparatus) Determination of crystallization effects by hardness measurements Conditioning for Low-Temperature testing Volume Resistivity of conductive and antistatic materials Resistance to weathering Oxygen Index of plastics Adhesion to metal, 90° peel method Ash Determination of raw and vulcanised polymers