RANDCASTLE COMPOUNDING

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Mixing 1,000 Times Better 10 = 5 This picture shows minor phase domains of 1 micron from our AFEM mixing screw. 5 = = 2.5 2.5 1.25 = 1.25 1.0 Conventional single screws are known to make domains of about 10 microns.* Our screws make 1 micron. How much better is that? Micro-photographs show two dimensional domains that are really three dimensional spheroids. Every time you halve the diameter, you reduce the volume 8 times. So, if have a 10 micron sphere, you need eight 5 micron spheres to contain the same amount of material. Likewise, you need eight 2.5 micron spheres to have the same volume as a 5 micron sphere. So, you need 8 x 8 x 8 x 2 = 1,024 spheres of 1 micron to equal the volume of a 10 micron sphere. Our AFEM and SFEM screws are 1,000 times better. Randcastle AFEM Conventional *See Summary Results of A Novel Single Screw Compounder, Antec -07 www.randcastle.com under technical papers.
20PS/80PE De-mixing During Molding AFEM Recirculator Conventional Injection Screw The AFEM Recirculator compounded the mixture on the left. This was then injection molded with a conventional screw. Coalescence takes place without the AFEM Recirculator and the domains increase as seen in the green oval. When the AFEM- Recirculator is installed in a molder, coalescence does not occur. The pictures are courtesy of Rutgers. RUTGERS THE STATE UNIVERSITY OF NEW JERSEY Advanced Materials via Immiscible Polymer Processing A Cooperative Center for Research, Development and Commercialization
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RANDCASTLE COMPOUNDING

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