RANDCASTLE COMPOUNDING

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Coloring Vinyl Film Flexible PVC pellets/0.5% red/0.5% yellow concentrate UC Mixer AFEM Recirculator On the left, a conventional mixing section screw (aka Union Carbide mixer or Maddock mixer) compared to the AFEM-Recirculator. Mixing yellow and red at 0.5% is extremely difficult for small extruders. For example, the 5/8 inch screw that made these films has about 300 pellets in the entire screw. That’s less than 2 pellet of each color in the entire extruder! These pictures give you a good idea about distributive mixing. The classic screw on the left just pushes the poor input out the die. The AFEM Recirculator stretches the film many ways and many times so that you get a better product.
Single Screw vs. Twin Screw Continuous Domains: 20PS/80PE Recirculator Single Screw Twin Screw The Randcastle AFEM Recirculator shows the same size domains as the twin screw in this immiscible polymer blends without compatibilizer at 5,000 times magnification. Left picture courtesy Rutgers. Right picture, Antec 95, “CO-CONTINUITY AND PHASE INVERSION IN HDPE/PS BLENDS: THE ROLE OF INTERFACIAL MODIFICATION” by Daniel Bourry and Basis D. Favis RUTGERS THE STATE UNIVERSITY OF NEW JERSEY Advanced Materials via Immiscible Polymer Processing A Cooperative Center for Research, Development and Commercialization
Page 1 and 2: RANDCASTLE COMPOUNDING These pictur
Page 3 and 4: RANDCASTLE COMPOUNDING Index By Mat
Page 8 and 9: Batch Mixer Cooling Experiments 4.3
Page 12 and 13: Single Screw vs. Twin Screw Co-Cont
Page 14 and 15: Mixing 1,000 Times Better 10 = 5 Th
Page 16 and 17: Ceramic Nano-Composites PMMA Pellet
Page 18 and 19: 1% Carbon Nano-Tubes In Lignin Comp
Page 24 and 25: 5% Carbon Nano-Tubes In PMMA This s
Page 26 and 27: 5% Carbon Nano-Tubes In Acetal Cond
Page 28 and 29: 0.018 inch hole for monofilament Di
Page 30 and 31: Direct Extrusion: RPVC Powder & Woo
Page 32 and 33: Melt Temperature RPVC Pellets 1 Inc
Page 34 and 35: PVC 95/72 Durometer PVC Barrier Scr
Page 36 and 37: 35% Calcium Carbonate Powder Compou
Page 38 and 39: Scaling From SFEM Batch Mixer To SF
Page 40 and 41: Injection Molded 10-90 PS-HDPE Inje
Page 42 and 43: Randcastle’s AFEM Recirculator Su
Page 44 and 45: Surface Expands Exponentially 1 1)
Page 46: Randcastle’s SFEM Elongator Addit

RANDCASTLE COMPOUNDING

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