1
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Li K, Matsuba G. Effects of relaxation time and zero shear viscosity on structural evolution of linear low-density polyethylene in shear flow. J Appl Polym Sci 2018. [DOI: 10.1002/app.46053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Go Matsuba
- Graduate School of Science and Engineering; Yamagata University; 4-3-16 Jonan, Yonezawa, Yamagata 992-8510 Japan
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2
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Tian N, Zhao B, Li X, Liu Y, Zhou W, Cui K, Liu D, Li L. Confined crystallization in end-linked PEO network under uniaxial extension. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.10.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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van Erp TB, Roozemond PC, Peters GWM. Flow-enhanced Crystallization Kinetics of iPP during Cooling at Elevated Pressure: Characterization, Validation, and Development. MACROMOL THEOR SIMUL 2013. [DOI: 10.1002/mats.201300004] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tim B. van Erp
- Department of Mechanical Engineering; Materials Technology Institute, Eindhoven University of Technology; P.O. Box 513, 5600 MB Eindhoven The Netherlands
| | - Peter C. Roozemond
- Department of Mechanical Engineering; Materials Technology Institute, Eindhoven University of Technology; P.O. Box 513, 5600 MB Eindhoven The Netherlands
| | - Gerrit W. M. Peters
- Department of Mechanical Engineering; Materials Technology Institute, Eindhoven University of Technology; P.O. Box 513, 5600 MB Eindhoven The Netherlands
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4
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Controlled shear-induced molecular orientation and crystallization in polypropylene/talc microcomposites – Effects of the talc nature. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.03.057] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Forstner R, Peters GWM, Meijer HEH. A Novel Dilatometer for PVT Measurements of Polymers at High Cooling – and Shear Rates. INT POLYM PROC 2013. [DOI: 10.3139/217.2154] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
A novel dilatometer to investigate the specific volume of polymers as a function of the combined effect of pressure (100 MPa), temperature (300°C), cooling rate (100°C/s) and shear rate (200 l/s) was developed. The dilatometer consists of a pressure cell, which in design is a combination of a traditional “piston-die type” dilatometer and a Couette rheometer, embedded in a custom made frame, which allowed for scaling down to a “table-sized” machine that requires only standard laboratory supplies, like pressurized air and tap water, for operation and cooling. We implemented software for fully automated control of procedures to operate non-isothermal experiments with shear steps applied at predefined temperatures. The sample rings (m ≈ 65 mg) used in the dilatometer are made with a micro injection moulding machine. Experiments with two commercial isotactic Polypropylene (iPP) grades at low cooling rates, performed by two independent groups, were compared with measurements from a commercial confined fluids dilatometer showing small relative differences in the range of 0.03 to 0.3%. As an example, additional results of an isotactic polypropylene were chosen to show the profound influence of cooling rate and melt shearing on the evolution of specific volume.
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Affiliation(s)
- R. Forstner
- Eindhoven University of Technology, Faculty of Mechanical Engineering, Section Materials Technology, Eindhoven, The Netherlands
| | - G. W. M. Peters
- Eindhoven University of Technology, Faculty of Mechanical Engineering, Section Materials Technology, Eindhoven, The Netherlands
| | - H. E. H. Meijer
- Eindhoven University of Technology, Faculty of Mechanical Engineering, Section Materials Technology, Eindhoven, The Netherlands
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6
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Housmans JW, Balzano L, Santoro D, Peters GWM, Meijer HEH. A Design to Study Flow Induced Crystallization in a Multipass Rheometer. INT POLYM PROC 2013. [DOI: 10.3139/217.2230] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The design and performance of a flow geometry for the multipass rheometer (MPR) is described, creating an experimental setup to study in-situ and ex-situ structure and morphology development with a proper control over the processing conditions and shear history. The slit used is equipped with diamond windows, to combine flow with different experimental techniques, such as optical microscopy (OM), birefringence and X-ray scattering. In this paper we present preliminary results, obtained on isotactic polypropylene, that demonstrate the possibilities of this device for more extended future research. The focus is on the in-situ birefringence measurements of crystallization and the relation with the final morphology.
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Affiliation(s)
- J.-W. Housmans
- Materials Technology, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - L. Balzano
- Materials Technology, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - D. Santoro
- Department of Chemical and Food Engineering University of Salerno, Italy
| | - G. W. M. Peters
- Materials Technology, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - H. E. H. Meijer
- Materials Technology, Eindhoven University of Technology, Eindhoven, The Netherlands
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7
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Zhao Y, Hayasaka K, Matsuba G, Ito H. In Situ Observations of Flow-Induced Precursors during Shear Flow. Macromolecules 2012. [DOI: 10.1021/ma301888r] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yunfeng Zhao
- Department of Polymer Science and
Engineering, Yamagata University, 4-3-16,
Jonan, Yonezawa, Yamagata
9928510, Japan
| | - Kouhei Hayasaka
- Department of Polymer Science and
Engineering, Yamagata University, 4-3-16,
Jonan, Yonezawa, Yamagata
9928510, Japan
| | - Go Matsuba
- Department of Polymer Science and
Engineering, Yamagata University, 4-3-16,
Jonan, Yonezawa, Yamagata
9928510, Japan
| | - Hiroshi Ito
- Department of Polymer Science and
Engineering, Yamagata University, 4-3-16,
Jonan, Yonezawa, Yamagata
9928510, Japan
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8
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van Erp TB, Balzano L, Spoelstra AB, Govaert LE, Peters GW. Quantification of non-isothermal, multi-phase crystallization of isotactic polypropylene: The influence of shear and pressure. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.10.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Lamberti G. Flow-induced crystallization during isotactic polypropylene film casting. POLYM ENG SCI 2011. [DOI: 10.1002/pen.21891] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Chen YH, Mao YM, Li ZM, Hsiao BS. Competitive Growth of α- and β-Crystals in β-Nucleated Isotactic Polypropylene under Shear Flow. Macromolecules 2010. [DOI: 10.1021/ma101006e] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan-Hui Chen
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Yi-Min Mao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400
| | - Zhong-Ming Li
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Benjamin S. Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400
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11
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Housmans JW, Gahleitner M, Peters GW, Meijer HE. Structure–property relations in molded, nucleated isotactic polypropylene. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.02.050] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Coccorullo I, Pantani R, Titomanlio G. Spherulitic Nucleation and Growth Rates in an iPP under Continuous Shear Flow. Macromolecules 2008. [DOI: 10.1021/ma801524t] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- I. Coccorullo
- Department of Chemical and Food Engineering, University of Salerno, Via Ponte don Melillo, 84084 Fisciano (SA), Italy
| | - R. Pantani
- Department of Chemical and Food Engineering, University of Salerno, Via Ponte don Melillo, 84084 Fisciano (SA), Italy
| | - G. Titomanlio
- Department of Chemical and Food Engineering, University of Salerno, Via Ponte don Melillo, 84084 Fisciano (SA), Italy
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