Paint & Coatings Industry - March 2008 - (Page 67)

• Particular attention to the effective bead mass control. • The ability to effectively separate product from media. • Utilizing the smallest available grinding media (down to 0.05mm). • Media charge volumes of no more than 45%, which result in 100% nanometer particle sizes reduction at low temperatures. To achieve consistent sub-micron particle sizes it is essential to ensure that the physical properties of the premixed slurry fall into a specific range. Particular attention should always be given to product viscosity and initial particle size. Initial pre-mixes of 50 microns can be reduced to 300 nanometres and below consistently in minimum pass operations. Effective and reliable separation of the product and grinding media is achieved away from the outlet of the mill. Utilizing both the smallest grinding media size available, along with specific grinding media management control and effective separation within the milling operation, 100% sub-micron sized particles will result. The large particle size end is removed altogether. The bead velocity is maximized by the design of the main agitator. High-velocity beads moving only short distances are continually recaptured, forming a double spiralling opposing helix in and around the periphery of the main agitator, precisely directing the movement of the bead charge. Separation is also achieved at this stage. Centrifugal force separation is maximized by specific design where the grinding media and product separate accordingly. The media is held in a controlled and continually interactive double spiralling mass where the centrifugal milling intensity is at its greatest. The product is subject to a consistent and intensely packed bead mass. These conditions do not alter during the milling operation. The product can only escape from the mill via this intense grinding zone. For more information, e-mail info@cdcmicrotron.com or call (44) 1925 575678. Mike Templin Senior Business Development Specialist Paint, Coatings & Ink Dorian Haffelder Senior Business Development Specialist Paint, Coatings & Ink Michael Foote Senior Business Development Specialist Paint, Coatings & Ink Barry Miller Senior Business Development Specialist Paint, Coatings & Ink Chris Corbett Business Development Specialist Paint, Coatings & Ink PA I N T & C O A T I N G S I N D U S T R Y 67

Table of Contents Feed for the Digital Edition of Paint & Coatings Industry - March 2008

Viewpoint Industry News Calendar of Events Company News Mergers and Acquisitions Names in the News Marketplace Quarterly Stock Watch Reaching Strict VOC Requirements With Outstanding Durability for Industrial Maintenance and Marine Coatings A Unique Fungicide for Wood-Filled Plastic deSigns of the Times: Slacking Off! From Rocks to Nanos Shear-Free Dispersion Process Fluorinated Oxetane Oligomers as Versatile Intermediates for Polymer Modification The Effects of TPO Composition on Adhesion and Proposed Chemical Mechanism Supplier Showcase Color Management Materials Watch Products Classifieds Advertiser Index

Paint & Coatings Industry - March 2008

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