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Both types of extruders have their strengths and limitations. Twin screw extruder is generally preferred for color masterbatch production due to its excellent mixing efficiency as it gives better dispersion compared to single screw extruder.
This presentation is compilation of different research articles. But you can consult book Thermal analysis of polymers: fundamentals and applications by Joseph D Menczel. This book can be helpful.
thank you for this amazing video. Is it possible to find the mass law of motion for a generalized KV or Max model, like a spring-damper system with an external force?
This was a wonderfully condensed focusing agent for a lot of ideas I've had roaming around my head for many years. While you accrue knowledge in bite-size chunks from various projects, I feel like this was the one thing that put it all in order and filled in some missing data on where I went wrong. I can hardly wait to go back to the last project and make it work correctly!
I guess if the surface energy of solid-vapor is more than solid-liquid, then theta will be less than 90 and thus the droplet wets the surface and vice versa for other equation you mentioned at 8:48
Thanks for the vid. Im a new extrusion tech (we run mostly straight and side arm) and am tryn to help my troubleshooting capabilities... We run very old equipment many different materials. Any recommendations, resources or books on extrusion? Thank you to whomever reads this.
Currently, we have more than 50 videos on different topics of polymer science on our channel and we are regularly uploading new videos. Most of the videos are very important for GATE. If you have any question on any specific topic let us know. All the best.
This is very helpful! The inner molecules pull the outer molecules inward. The outer ones would LIKE to make their own bubbles so they can be surrounded, but the inner molecules prevent that. So I guess that higher surface tension = higher surface energy = the inner molecules are pulling harder inward than the outer molecules can resist = higher contact angle.
My suggestion will be to solve last 10-15 years paper without looking at your notes or book. If you can memories formula to solve last 10 years paper and understand the tricks, you will be in a very good position. Another important aspect is to memorize common conversion factors. I believe rubber elasticity, polymerization kinetics, fiber composites (stress/strain) and extrusion methods (throughput formula) are important topics for this year.
