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Liu K, Wang M, Li H, Zhao D, Jin Y. Effect of characteristic scale on the extrudate swelling behavior of polypropylene melt in a micro‐extrusion process. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25707] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kui Liu
- School of Mechanical Engineering Dalian University of Technology Dalian People's Republic of China
| | - Minjie Wang
- School of Mechanical Engineering Dalian University of Technology Dalian People's Republic of China
| | - Hongxia Li
- School of Mechanical Engineering Dalian University of Technology Dalian People's Republic of China
| | - Danyang Zhao
- School of Mechanical Engineering Dalian University of Technology Dalian People's Republic of China
| | - Yifei Jin
- Mechanical Engineering Department University of Nevada Reno Reno Nevada USA
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Uematsu H, Natsuume T, Tanoue S, Iemoto Y. Effect of Flow Induced Orientation of Carbon Nanotubes on the Capillary Extrusion Behavior of Low-Density Polyethylene. INT POLYM PROC 2017. [DOI: 10.3139/217.3062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The effect of carbon nanotubes (CNTs) on the capillary extrusion behavior of low-density polyethylene (PE) was investigated. From the linear viscoelasticity and the morphology observation, it was found that the CNTs were well dispersed throughout the PE matrix and our system belonged to the semi-dilute regime. The strain hardening, which quantifies the extension of the PE chain, decreased by presence of CNTs in the uniaxial elongational deformation. In contrast, the normal stress difference was almost unaffected by CNTs in the shear deformation. The capillary extrusion behavior revealed that swell ratio decreased with increasing the CNT content although melt fracture was promoted. We summarize that the suppression of swell and promotion of melt fracture are attributable to the orientation of CNTs.
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Affiliation(s)
- H. Uematsu
- Department of Frontier Fiber Technology and Science , University of Fukui, Fukui , Japan
| | - T. Natsuume
- Department of Frontier Fiber Technology and Science , University of Fukui, Fukui , Japan
| | - S. Tanoue
- Department of Frontier Fiber Technology and Science , University of Fukui, Fukui , Japan
| | - Y. Iemoto
- Department of Frontier Fiber Technology and Science , University of Fukui, Fukui , Japan
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