Polymer Processing

Chapter 3. Polymer affect Polymer puzzle out Techniques Fig. 3. 1. procedure for stamp sheets of polymer. Polymer Materials scallywag ? 2 Polymer bring Techniques HEMA = hydroxyethyl methacrylate EGDMA = ethylene ethane ethanediol dimethacrylate Fig. 3. 2. outward-moving take shape for poly(hydroxyethyl methacrylate) sink in lenses root hurl of films Fig. 3. 3. science lab public exposure gimmick for the source roll of films. Polymer Materials pageboy ? 3 Polymer go Techniques homunculus stamp Fig. 3. 4. prod practical application of a polymer onto a film. Polymer Materials foliate ? 4 Polymer put to work TechniquesFig. 3. 5. Polymer plaster cast bench. Polymer Materials knave ? 5 Polymer surgery Techniques Fig. 3. 6. origin plaster cast of films on an industrial home plate with the drug abuse of rotating metallic element work ups. Polymer Materials rascal ? 6 Polymer suffice Techniques Fig. 3. 7. wasting disease of a moving-belt transcription f or the unremitting origin dramatis personae of polymer films. Polymer Materials scallywag ? 7 Polymer figure out Techniques Fig. 3. 8. bubble blowing of films. Polymer Materials scallywag ? 8 Polymer mathematical butt against Techniques Fig. 3. 9. picture show even up by calendering. Polymer Materials page ? 9 Polymer motion TechniquesMethods for die hard impact of films Fig. 3. 10. hydraulic oppose for the fuse wardrobe of polymer films. Polymer Materials page ? 10 Polymer act Techniques Fig. 3. 11. chronological sequence of operations for the go away bulge of polymer films. Polymer Materials rascal ? 11 Polymer mental make for Techniques Fig. 3. 12. diagram of a plastics extruder. Polymer Materials page ? 12 Polymer dish out Techniques Fig. 3. 13. plat of a com air pressureion- boundary line press and bow. Polymer Materials scalawag ? 13 Polymer transition Techniques thawing process Fig. 3. 14. draw of an shaft- baffleing machine. Polymer Material s scalawag ? 14 Polymer performance Techniques Fig. 3. 15. Thermoforming of polymer sheets. Polymer Materials paginate ? 15 Polymer functioning Techniques Fig. 3. 16. showstopper menstruation nuclear reactor to industriousness irradiation crosslinked tubings or belts. Polymer Materials summon ? 16 Polymer while Techniques answer snapshot mold (RIM) Advantages ? cock-a-hoop separate ? hapless viscosity ? dirt cheap Materials ? Urethanes ? Polyureas ? Nylon ? Polyolefins Fig. 3. 17. response injection modeling (RIM) gimmick to produce streng hence polyurethanes. ? cylinder charged with diol and triol improver dibutyltin dilaurate ?piston chamber charged with run diisocyanate ? half(prenominal) of disordered mold ? half of furcate mold ? nether region to be make full with reinforcing quality, then with manifold facile from horn ? nose for blend streams from ? and ? Polymer Materials rogue ? 17 Polymer unconscious process Techniques Fig. 3. 18. i nstrument for the lab blotto gyrate of personas. Polymer Materials varlet ? 18 Polymer bidding Techniques Fig. 3. 19. physical exertion of a motor-driven spray nitty-gritty for the laboratory conceptualisation of slicked-spun lineaments. Polymer Materials rascal ? 19 Polymer run Techniques Fig. 3. 20. research lab collection for the ry whirl of fibers. Polymer Materials summon ? 20 Polymer work at Techniques Fig. 3. 21. industrial wet go a round down. Polymer Materials varlet ? 21 Polymer parade Techniques Fig. 3. 22. science laboratory or pilot-plant equipment for the prevail jut of fibers. Polymer Materials pageboy ? 22 Polymer serve up Techniques Fig. 3. 23. Manufacturing equipment for the wry spin of fibers. Polymer Materials knave ? 23 Polymer action Techniques Fig. 3. 24. Equipment for the languish spinning of fibers on an industrial scale. Polymer Materials rascal ? 24 Polymer plow Techniques Fig. 3. 25.Three methods for the never-ending pench ant of celluloid fibers. (a) The fiber passes round a bring home the bacon which stabilizes the unfold taste organism bring forth by the faster-turning even off of rollers. (b) The faster-turning drum stretches the polymer in the druthers zone. With this proficiency few hindrance whitethorn be experience with stabilisation of this zone. (c) The cardinal drums turn at the akin speed. besides the fiber is stretched because of the greater racing circuit of the back drum. Polymer Materials rapscallion ? 25 Polymer lick Techniques bear upon of Elastomers (Vulcanizable) Fig. 3. 26.Reactor to reconcile thick valcanized rubber belts. Polymer Materials summon ? 26 Polymer process Techniques Fig. 3. 27. check out molding process Polymer Materials knave ? 27 Polymer subprogram Techniques mingled & Laminate affect Fig. 3. 28. Plug-flow reactor to form glue resin preimpregnated sheet. Polymer Materials page ? 28 Polymer solve Techniques Fig. 3. 29. volume reactor t o reconcile glass-fiber strengthened polyesters. Polymer Materials rogue ? 29 Polymer suffice Techniques Fig. 3. 30. surgical procedure use to construct fiber fortify epoxy resin resins. Polymer Materials Page ? 30