DOI: 10.1002/pen.11274. Efficient mixing of polymer blends of extreme viscosity ratio: Elimination of phase inversion via solid‐state shear pulverization

Efficient mixing of polymer blends of extreme viscosity ratio: Elimination of phase inversion via solid‐state shear pulverization

10.1002/pen.11274

Crossref journal-article

Wiley

Polymer Engineering & Science (311)

Abstract

AbstractA novel, continuous process, solid‐state shear pulverization (S3P), efficiently mixes blends with different component viscosities. Melt mixing immiscible polymers or like polymers of different molecular weight often requires long processing times. With a batch, intensive melt mixer, a polyethylene (PE)/polystyrene (PS) blend with a viscosity ratio (low to high) of 0.019 required up to 35 min to undergo phase inversion. Phase inversion is associated with a morphological change in which the majority component, the high‐viscosity material in these blends, transforms from the dispersed to the matrix phase, and may be quantified by a change from low to high mixing torque. In contrast, such blends subjected to short‐residence‐time (∼3 min) S3P yielded a morphology with a PS matrix and a PE dispersed phase with phase diameters ≤ 1 μm. Thus, S3P directly produces matrix and dispersed phases like those obtained after phase inversion during a melt‐mixing process. This assertion is supported by the similarity in the near‐plateaus in torque obtained in the melt mixer at short times with the pulverized blend and at long times with the non‐pulverized blend. The utility of S3P to overcome problems associated with melt mixing like polymers of extreme viscosity ratio is also shown.

Bibliography

Furgiuele, N., Lebovitz, A. H., Khait, K., & Torkelson, J. M. (2000). Efficient mixing of polymer blends of extreme viscosity ratio: Elimination of phase inversion via solidâstate shear pulverization. Polymer Engineering & Science, 40(6), 1447â1457. Portico.

Authors 4

Naomi Furgiuele (first)
Andrew H. Lebovitz (additional)
Klementina Khait (additional)
John M. Torkelson (additional)

References 69 Referenced 36

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Dates

Type	When
Created	21 years, 4 months ago (April 8, 2004, 11:19 a.m.)
Deposited	1 year, 9 months ago (Oct. 29, 2023, 3:43 a.m.)
Indexed	3 months, 2 weeks ago (May 9, 2025, 1:26 a.m.)
Issued	25 years, 2 months ago (June 1, 2000)
Published	25 years, 2 months ago (June 1, 2000)
Published Online	21 years, 4 months ago (April 8, 2004)
Published Print	25 years, 2 months ago (June 1, 2000)

Funders 0

None

BibTeX

@article{Furgiuele_2000, title={Efficient mixing of polymer blends of extreme viscosity ratio: Elimination of phase inversion via solid‐state shear pulverization}, volume={40}, ISSN={1548-2634}, url={http://dx.doi.org/10.1002/pen.11274}, DOI={10.1002/pen.11274}, number={6}, journal={Polymer Engineering & Science}, publisher={Wiley}, author={Furgiuele, Naomi and Lebovitz, Andrew H. and Khait, Klementina and Torkelson, John M.}, year={2000}, month=jun, pages={1447–1457} }

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