Rheological and extrusion behavior of intercalated high-impact polystyrene/organomontmorillonite nanocomposites
Source abstract
Abstract
Abstract High-impact polystyrene (HIPS)/organomontmorillonite (Org-MMT) nanocomposites were prepared by melt processing using a twin-screw extruder. Intercalation of the Org-MMT in the HIPS matrix was achieved as revealed by both X-ray diffraction and transmission electron microscopy. Great attention was focused on the rheological and extrusion behavior of HIPS/Org-MMT nanocomposites via a capillary rheometer owing to the resemblance of its conditions of operation to those prevailing during the practical fabrication process of materials. The rheological data of the nanocomposites exhibited power-law relationship of flow and sharper shear thinning compared to the polymer matrix. With increasing Org-MMT loadings, the flow behavior index, n′ decreased at a constant temperature and shear rate whereas the apparent shear viscosity, ηa increased slightly. The dependence of ηa on temperature was in accordance with Arrhenius–Eyring expression. The addition of Org-MMT resulted in a decline in extrusion swell and melt elasticity of the nanocomposites.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Polymer Nanocomposites and Properties · Polymer crystallization and properties · biodegradable polymer synthesis and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials10.1016/S0927-796X(00)00012-7 ↗
2. Thermoset-layered silicate nanocomposites: quaternary ammonium montmorillonite with primary diamine cured epoxies10.1021/cm000477+ ↗
3. Mechanism of clay tactoid exfoliation in epoxy-clay nanocomposites10.1021/cm00059a023 ↗
4. On exfoliation of montmorillonite in epoxy10.1016/S0032-3861(00)00898-3 ↗
5. A rheological study on the kinetics of hybrid formation in polypropylene nanocomposites10.1021/ma000565f ↗
6. Polymer-layered silicate nanocomposites: synthesis, properties and applications10.1002/(SICI)1099-0739(199810/11)12:10/11<675::AID-AOC779>3.0.CO;2-V ↗
7. Inhomogeneities in sheared ultrathin lubricating films10.1021/la950902r ↗
8. Nylon 6 nanocomposites: the effect of matrix molecular weight10.1016/S0032-3861(01)00552-3 ↗
9. Synthesis and rheology of intercalated polystyrene/Na+-montmorillonite nanocomposites10.1002/1521-3927(20020201)23:3<191::AID-MARC191>3.0.CO;2-H ↗
10. Preparation and rheological characterization of intercalated polystyrene/organophilic montmorillonite nanocomposite10.1002/app.11481 ↗
11. Preparation and interaction characteristics of organically modified montmorillonite nanocomposite with miscible polymer blend of poly(ethylene oxide) and poly(methyl methacrylate)10.1021/cm010498j ↗
12. Synthesis and characterization of high impact polystyrene/organically modified layered silicate nanocomposites
13. Dynamic mechanical behavior of atactic and high-impact polystyrene10.1002/(SICI)1097-4628(20000214)75:7<865::AID-APP2>3.0.CO;2-H ↗
14. Melt rheology of LDPE and glass bead filled LDPE composite10.1002/(SICI)1097-4628(19990822)73:8<1451::AID-APP14>3.0.CO;2-S ↗
15. Shenoy · 1999
16. Melt rheological behaviour of natural rubber poly(methyl methacrylate) natural rubber-g-poly(methyl methacrylate) blends10.1016/S0032-3861(97)00120-1 ↗
17. Synthesis of epoxy-clay nanocomposites. Influence of the nature of the curing agent on structure10.1016/S0032-3861(00)00801-6 ↗
18. Intercalated clay nanocomposites: morphology, mechanics, and fracture behavior10.1002/polb.1090 ↗
19. Characterization of polymer-layered silicate (clay) nanocomposites by transmission electron microscopy and X-ray diffraction: a comparative study10.1002/app.11884 ↗
20. Synthesis and properties of polyimide clay hybrid10.1002/pola.1993.080311009 ↗
21. Preparation and rheological characteristics of solvent-cast poly(ethylene oxide)/montmorillonite nanocomposites10.1002/1521-3927(20010301)22:5<320::AID-MARC320>3.0.CO;2-3 ↗
22. Rheological evidence for the microstructure of intercalated polymer/layered silicate nanocomposites10.1002/(SICI)1521-3927(20000301)21:5<231::AID-MARC231>3.0.CO;2-3 ↗
23. Shear response of layered silicate nanocomposites10.1063/1.1345908 ↗
24. Structure and dynamics of polymer-layered silicate nanocomposites10.1021/cm960127g ↗
25. Melt rheological properties of polypropylene-maleated polypropylene blends. I. Steady flow by capillary10.1002/(SICI)1097-4628(19990307)71:10<1641::AID-APP11>3.0.CO;2-A ↗
26. Viscosity, plasticity and diffusion as examples of absolute reaction rates10.1063/1.1749836 ↗
27. Prediction of melt viscosity flow curves at various temperatures for some olefin polymers and copolymers10.1002/pen.760080309 ↗
28. A generalized melt viscosity–temperature dependence for styrene and styrene-acrylonitrile based polymers10.1002/pen.760161007 ↗
29. The influence of carbon black on the extrusion characteristics and rheological properties of elastomers: polybutadiene and butadiene–styrene copolymer10.1002/app.1974.070180405 ↗
30. The influence of titanium dioxide on the rheological and extrusion properties of polymer melts10.1002/app.1976.070200222 ↗
31. Die-swell behavior of glass bead-filled low-density polyethylene composite melts at high extrusion rates10.1002/(SICI)1097-4628(20000418)76:3<419::AID-APP17>3.0.CO;2-B ↗