By Marianna Kontopoulou
Explore polymer rheology from an business standpoint
Presenting state of the art polymer rheology as saw by means of well-recognized authors, Applied Polymer Rheology: Polymeric Fluids with business Applications is designed to assist readers comprehend the connection among molecular constitution and the movement habit of polymers. particularly, it makes a speciality of polymeric platforms that elicit certain consciousness from industry.
Providing a complete evaluate of the rheological features of polymeric fluids, the publication bridges the space among conception and practice/application, permitting readers to determine the relationship among molecular constitution and the habit of the polymers studied. starting with a dialogue of the homes, processability, and processing aids of particular polymers, later chapters learn crammed polymers and composites, and the theoretical framework upon which their research relies. a number of structures containing microstructure are provided for this reason, with the ultimate bankruptcy introducing paste extrusion of polytetrafluoroethylene paste.
An beneficial reference consultant that covers the literature and significant array of technical techniques to polymer rheology, Applied Polymer Rheology's insurance of polymeric fluids of curiosity to make it a necessary source for plastics, polymer, and chemical engineers, fabrics scientists, polymer chemists, and polymer physicists to take advantage of whilst reading findings and making plans experiments.
Chapter 1 easy strategies in Polymer soften Rheology and Their significance in Processing (pages 1–27): John Vlachopoulos and Nickolas Polychronopoulos
Chapter 2 Polymer Processing ingredients for soften Fracture keep an eye on (pages 29–58): Savvas G. Hatzikiriakos and Kalman B. Migler
Chapter three Branched Polyolefins (pages 59–112): Alexandros D. Gotsis
Chapter four constitution and Rheology of Fiber Suspensions (pages 113–151): Aaron P. R. Eberle, Kevin Ortman and Donald G. Baird
Chapter five Rheology and Processing of Polymer Nanocomposites (pages 153–177): Ramanan Krishnamoorti and Tirtha Chatterjee
Chapter 6 Rheology of Wood–Plastics Composites (pages 179–208): Tieqi Li
Chapter 7 Block Copolymers in exterior Fields: Rheology, Flow?Induced Phenomena, and purposes (pages 209–239): Michel Cloitre and Dimitris Vlassopoulos
Chapter eight Reactive platforms and Thermoplastic Vulcanizates (pages 241–261): Philippe Cassagnau, Gregory Martin and Claire Barres
Chapter nine constitution and Rheology of Polymer Composites Containing Thermotropic Liquid Crystalline Polymers (pages 263–264): Jiasong He
Chapter 10 Electrorheological Fluids: fabrics and Rheology (pages 285–302): Fei Fei Fang and Hyoung Jin Choi
Chapter eleven Rheology and Processing of Polytetrafluoroethylene Paste (pages 303–334): Savvas G. Hatzikiriakos
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Extra info for Applied Polymer Rheology: Polymeric Fluids with Industrial Applications
30 31 32 32 34 36 36 39 42 42 43 44 46 46 47 48 Applied Polymer Rheology: Polymeric Fluids with Industrial Applications, First Edition. Edited by Marianna Kontopoulou. r 2012 John Wiley & Sons, Inc. Published 2012 by John Wiley & Sons, Inc. 5 Other Processing Aids . . . . . . . . . . . . . . . . . . . . 1 Stearates. . . . . . . . . . . . . . . . . . . . . . 2 Silicon-Based Additives . . . . . . . . . . . . . . . . . 3 Hyperbranched Polymers.
New generations of processing aids use combinations of this ﬂuoropolymer with polyethylene glycol or other low molecular mass compounds. 1% of mass fraction of PPA in polymer); they are highly immiscible with polyoleﬁns, and the resulting material is a dilute two-phase blend. Some brand names of ﬂuoropolymers used as PPAs are DYNAMARs, VITONs, KYNARs, TEFLONs, and DFLs (dry ﬁlm type1). Often a two-step procedure is used to make the blend, in which a master batch is ﬁrst prepared and pelletized, and then mixed with the process 1.
The polymers to be used in such processing operations should, therefore, be characterized by their extensional properties. LDPE (branched) exhibits high extensional viscosity and strong strain hardening and, consequently, produces stable bubbles in ﬁlm blowing. LLDPE exhibits lower extensional viscosity than LDPE without any signiﬁcant strain hardening and produces bubbles that may be prone to instabilities. For such materials the cooling and bubble handling systems downstream of the die lips have to be expertly designed to reduce or eliminate the instabilities.