Middle East Coating Show 2008 Conference (10 & 11 March 2008)

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Middle East Coatings Show 2008 Conference DAY 1 | Monday, 10 March 2008 12:30 Registration opens 13:45 Welcome, Ian Faux, dmg world media Introduction, Dr Marcel Piens, Coatings Research Institute (CoRI) 14:00 – 14:30 Practical and economical advantages of new grinding technology André Wyrsch, Willy A. Bachofen AG, Switzerland The constantly increasing awareness of quality and environment as well as the general tendency to rationalize have a great impact on grinding and dispersion technology. Existing procedures must be optimized in every aspect. New product technologies often require new and efficient manufacturing processes and plants. As a manufacturer of production equipment, we were subject to the obligation to find a response for this evolution with the new grinding technology - the high efficient bead mill - which are especially dedicated to the production of coatings, paints, pigment paste, dyestuff and for the new application fields of nanotechnology. His unique and patented working principle provides highest flexibility. The investment costs are lower for conventional mills while the production costs are extremely dropping. 14:30 – 15:00 The use of solid and hollow glass microspheres as functional fillers for the performances enhancement in thermoplastic and thermoset resins systems. Jean-Philipe Curdy, Potters Europe, UK The use of additives is a common practice in the paint & coating industry for improving processing and material costs and for achieving the desired engineered properties of the final product. Costs reduction though still critical, are not the most important consideration for using fillers in formulating composite materials. The fillers can be tailored to provide cost savings through increased processing capabilities and to selectively improve the mechanical and thermal properties of specific compounded plastics, thus, making the fillers ''active'' or ''functional''. The desired improvements can be achieved by engineering the key characteristics of the filler, e.g., density, hardness, strength, particle size, reactivity, shape, etc. Inorganic fillers or extenders such as calcium carbonate, kaolin, mica, talc, and glass beads (spheres) have found wide use for this purpose. Solid & Hollow glass spheres are being used as a reinforcement/filler for both thermoplastics and thermo setting resins to improve physical properties, reduce cost, and solve production problems. All commercially available resins have limited capabilities which often can be extended by incorporating other materials. This article is divided into three sections: (1) a discussion of solid & hollow glass spheres and their specific properties; (2) a discussion of the advantages of using solid glass spheres in wood coating; and (3) a discussion of the use of the hollow microspheres for weight reduction in specific thermoset application. 15:00 – 15:30 Diverse applications for crystalline calcium sulfonate coating systems in challenging environments Modified and reproduced by Ashwin V. Parikh, IBD, India (with prior approval of Paul E. Morisson, USA.) The history and mechanism of sulfonate coatings is presented. Laboratory tests, applications which illustrate performance and recent developments and uses are discussed. Petroleum sulfonates have evolved dramatically from their emergence as by-products of white mineral oil production to multifunctional products vital to modern industry and commerce. At the turn of the century, petroleum sulfonates, or their precursors (sulfonic acids) were being produced in fairly large quantities as “waste product” in the production of food grade white mineral oils. It wasn’t long before the sulfonate molecule was recognized for its ability to function as a detergent and corrosion inhibitor. Today, these compounds are a primary active ingredient in lubricating oils for engines used in everything from lawn mowers to marine diesel and have a myriad of other uses. Their chemical cousins, crystalline sulfonates, are widely used in automotive and truck coatings as well as marine coatings for ship and barge ballast tanks and void spaces. 15:30 – 16:00 Coffee Break 16:00 – 16:30 Crimea CR-071 – a brand new titanium dioxide grade produced by CJSC «Crimea TITAN». Andrei Gonchar, CJSC Crimea TITAN, Ukraine (Presented by Valentina V. Kosmina) The characteristics of a new titanium dioxide grade developed will be presented and its distinctive aspects in comparison to other CJSC «Crimea TITAN» titanium dioxide grades will be discussed. The application of the new pigment, Crimea CR-071, in various branches of industry will be illustrated. 16:30 – 17:00 Process-additives for powder coatings Heiko Juckel, BYK-Chemie, Germany A new generation of powder coatings additives based on new chemistry and exhibiting significant beneficial influences will be described. The new additive line is based on requirements from the powder coatings market. Improved pigment dispersions, DOI, or improved out gassing properties are some of the good arguments for the new additive line of process additives. The presentation will give an interesting overview about the investigation. 17:00 – 17:30 Neuburg Siliceous Earth: functional filler for epoxy powder pipeline coatings Susanne Reiter and Alexander Risch, Hoffmann MineraL GmbH & Co. K, Germany Epoxy powder pipeline coating is widely used to protect various sizes of steel pipes used in pipeline construction and on a wide variety of piping connections, valves etc. from deterioration due to corrosion. Essential components of a powder coating are resin, curing agent, filler and color pigments. Filler is an important ingredient to optimize the chemical, mechanical and also cost-effectiveness. The objective of this study was to evaluate the property profile influenced by using the functional filler Neuburg Siliceous Earth in comparison to other fillers which are usually or potentially incorporated in powder coatings. It has been found that they influence processing properties, optical appearance, flexibility, abrasion resistance and corrosion as well as chemical resistance. The best over-all performance has been found for silane surface treated fillers. www.middleeastcoatingsshow.com/cpdelegate
New Materials and Technologies within Organic Coatings DAY 2 | Tuesday, 11 March 2008 10:00 – 10:30 Washability and cleanability testing for paint systems J. F. Fletcher, Elcometer Instruments Ltd, UK (Presented by: C Woolhouse) The resistance of paint systems to wear caused by repeated cleaning operations and to penetration of soiling agents is vital for the performance assessment of the paint systems. Such assessment can be applied to both paint formulation and to paint system selection. Testing the paints as described in EN ISO 11998 Determination of wet-scrub and cleanability of coatings requires that the paint be applied to the substrate under controlled conditions and then tested using a mechanical wet-scrub apparatus. This paper describes an automatic film applicator that can be used for preparing suitable paint samples and a washability tester that meets the requirements of EN ISO 11998. The use of thickness measurement, gloss and weight loss as methods of assessing the effect of the scrub testing will be discussed. 10:30 – 11:00 QUV compared to Xenon Arc Mark Evans, Q-Lab Europe Limited, UK Two accelerated weathering test methods: fluorescent ultraviolet and Xenon arc will be compared. The paper will describe the strengths and limitations for both techniques due to: simulation of the forces of weathering including sunlight, temperature and moisture, mounting of test specimens, control of test parameters, and operational considerations. 11:00 – 11:30 Coffee Break 11:30 – 12:00 Nanoparticle based UV absorbers for coatings János Hajas, BYK, Germany Inorganic metal oxide (ZnO and CeO2) based UV absorbers with very good overall properties have been developed for aqueous and solventborne coating applications. The new additives provide significant benefits over “classic” organic UV absorbers and show excellent properties in wood stains and in architectural paint formulations. Synergistic effects between nano-zinc oxide and nano-cerium oxide based products will be highlighted, spectral properties, advantages, disadvantages, side effects and application results will be discussed in comparison with nano-titanium dioxide and organic UV absorbers. The new additives are especially recommended for very durable applications in light coloured stains and clear varnishes, and also in exterior architectural paints. 12:00 – 12:30 Surface morphology and chemistry of epoxy-based coating after exposure to ultraviolet radiation Hamad Al-Turaif, King Abdulaziz University, Saudi Arabia The effect of Ultraviolet (UV) radiation on surface morphology and surface chemistry of epoxy resin based coating was characterized with both Scanning Electron Microscopy (SEM) and X-ray Photoelectron Spectroscopy (XPS) which was thoroughly applied to follow the chemical changes takes place after different UV-exposure periods of time. SEM images indicated the generation of “silver cracks” on the surface of the coating as a result of UV-exposure. The shape and width of the cracks are highly related to the UVexposure period. XPS revealed that the main carbon peak have an unsymmetrical shape which is due to the big variety in the type of the carbon bonds in the chemical structure of the epoxy resin. Evidence of an oxidation degradation process was observed on the coating surface. The longer the exposure of the coating to UV radiation, the more oxygen bond was formed causing oxygen content to increase and carbon concentration to decrease. XPS-peak fittings for four carbon bonds were conducted. Results indicated the cleavage of aliphatic carbonhydrogen (C-H) and hydroxyl (C-OH) bonds side by side with the formation of carbonyl (C- OOH) and carboxyl (CO-O) bonds. These changes took place on the surface of the epoxybased coating. They were discontinued after specific UV-exposure period of time. 12:30 – 14:00 Lunch 14:00 – 14:30 Color Space Concept with interference pigments for coating applications Matthias R.F. Kuntz, Adalbert Huber, Gerhard Pfaff, Merck KGaA, Germany A new Color Space Concept for interference pigments will be presented which meets the desire for new styling possibilities in the areas of color saturation, texture, and improved appearance. The complexity of the pigment portfolio can be reduced to a systematic group of eight interference pigments. Additional interference colors are created by mixing the eight new interference pigments and a much larger color spectrum than ever before can be covered with fewer pigments. 14:30 – 15:00 Tinting during filling – an innovation for effective paint production Marco Amadei, CPS Color Equipment S.P.A., Italy Tinting during filling (TDF) is a production method, where the coloured paint is produced by dispensing the colorants and the paint directly into the can. This allows paint manufacturers to produce even small orders with short delivery times in a cost-effective manner. The dispensing of bases and colorants is performed either by weight or by volume, depending on the paint and colorant rheology, accuracy, production speed and capacity requirements. These requirements also define the mixing process, which can be performed with propeller mixers or with fully automated gyroscopic mixers. The most advanced TDF manufacturing systems are able to handle endless base paints, various can sizes and shapes mixed in any sequence. This flexibility truly offers possibilities for product differentiation with cost efficiency, reproducibility and quality. Fully integrated TDF system comprises of SCADA supervisory software in conjunction with colour matching and ERP software, colorants and colour formulae. 15:00 – 15:30 Binding agents of renewable raw materials Jan Feder, Biopin/processing, Germany The main points to be discussed include the presentation of the company and its philosophy as well as a detailed description of the range of company products. 15:30 – 16:00 Coffee Break 16:00 – 16:30 Durable good looks is what it’s all about Tommy Kuster, IGP Pulvertechnik AG, Switzerland The right powder coating solutions for a sustainable attractive façade will be discussed. If one makes the wrong choice the consequences are at the end of the life span no saving, because some time an abrasive cleaning is necessary. This will change colour and appearance and the building stays dirty all the time. 16:30 – 17:00 Polymeric Microbeads Shreekant Patil, Polychem Resins INT. IND. LLC, United Arab Emirates Polymeric Microbeads, namely the micro gels that are used to replace titanium dioxide in emulsion paints, represent the main topic of the presentation. The polymeric microbeads are improving the hiding capacity of paint. 17:00 – 17:30 Fast Curing of Coatings by Induction Heating* and Characterisation of Cure-mode** Dr. Christian Lammel*, IFF GmbH, Germany Dr. Amir Hussain**, COMTECH GmbH, Germany Modern serial processes have cycle times within seconds or few minutes. Unfortunately most polymers have a curing time of minutes, hours or even days. For this reason, it is very important to accelerate cross-linking reactions by increasing the temperature. IFF GmbH develops and distributes induction heating equipment, which is exactly designed for these purposes: The inductive heating of the parts or special fillers (nanoferrites) is used for getting initial strength within seconds to make possible a further processing. This heating technology has the best efficiency which reduces energy consumption and costs. To control efficiency and repeatability of the fast curing process, precise characterisation of cure mode is crucial. Advanced techniques like MDSC (Modulated Differential Scanning Calorimetry), DMA (Dynamic Mechanical Analysis) and DEA (Dielectric Analysis) are proving very effective. MSDC has the advantage of improved resolution for determination of reaction kinetics and Tg. DMA is a more sensitive technique for Tg determination which defines the extent of cure by measuring moduli and mechanical damping with respect to the temperature. When polar groups are present in organic coatings like epoxy and polyurethane, DEA is the most sensitive technique where dielectric loss is determined with respect to the temperature. 17:30 Conclusions www.middleeastcoatingsshow.com/cpdelegate
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Middle East Coating Show 2008 Conference (10 & 11 March 2008)

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