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Gubała D, Slastanova A, Matthews L, Islas L, Wąsik P, Cacho-Nerin F, Ferreira Sanchez D, Robles E, Chen M, Briscoe WH. Effects of Erucamide on Fiber "Softness": Linking Single-Fiber Crystal Structure and Mechanical Properties. ACS NANO 2024. [PMID: 38334316 PMCID: PMC10883039 DOI: 10.1021/acsnano.4c00114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Erucamide is known to play a critical role in modifying polymer fiber surface chemistry and morphology. However, its effects on fiber crystallinity and mechanical properties remain to be understood. Here, synchrotron nanofocused X-ray Diffraction (nXRD) revealed a bimodal orientation of the constituent polymer chains aligned along the fiber axis and cross-section, respectively. Erucamide promoted crystallinity in the fiber, leading to larger and more numerous lamellae crystallites. The nXRD nanostructual characterization is complemented by single-fiber uniaxial tensile tests, which showed that erucamide significantly affected fiber mechanical properties, decreasing fiber tensile strength and stiffness but enhancing fiber toughness, fracture strain, and ductility. To correlate these single-fiber nXRD and mechanical test results, we propose that erucamide mediated slip at the interfaces between crystallites and amorphous domains during stress-induced single-fiber crystallization, also decreasing the stress arising from the shear displacement of microfibrils and deformation of the macromolecular network. Linking the single-fiber crystal structure with the single-fiber mechanical properties, these findings provide the direct evidence on a single-fiber level for the role of erucamide in enhancing fiber "softness".
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Affiliation(s)
- Dajana Gubała
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Anna Slastanova
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Lauren Matthews
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
- Bristol Centre for Functional Nanomaterials, HH Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, U.K
| | - Luisa Islas
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Patryk Wąsik
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
- Bristol Centre for Functional Nanomaterials, HH Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, U.K
| | - Fernando Cacho-Nerin
- Diamond Light Source, Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, U.K
| | | | - Eric Robles
- Procter & Gamble Newcastle Innovation Centre, Whitley Road, Longbenton, Newcastle NE12 9TS, U.K
| | - Meng Chen
- Procter & Gamble Technology (Beijing) Co., Ltd., 35 Yu'an Rd, Shunyi District, Beijing 101312, China
| | - Wuge H Briscoe
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
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Stribeck N, Zeinolebadi A, Fakirov S, Bhattacharyya D, Botta S. Extruded blend films of poly(vinyl alcohol) and polyolefins: common and hard-elastic nanostructure evolution in the polyolefin during straining as monitored by SAXS. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2013; 14:035006. [PMID: 27877579 PMCID: PMC5090510 DOI: 10.1088/1468-6996/14/3/035006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 04/29/2013] [Indexed: 06/06/2023]
Abstract
Straining of PVA/PE and PVA/PP blends (70:30) is monitored by small-angle x-ray scattering (SAXS). Sheet-extruded films with different predraw ratio are investigated. The discrete SAXS of predrawn samples originates from polyolefin nanofibrils inside of polyolefin microfibrils immersed in a PVA matrix. PE nanofibrils deform less than the macroscopic strain without volume change. PP nanofibrils experience macroscopic strain. They lengthen but their diameter does not decrease. This is explained by strain-induced crystallization of PP from an amorphous depletion shell around the core of the nanofibril. The undrawn PVA/PE film exhibits isotropic semicrystalline nanostructure. Undrawn PVA/PP holds PP droplets containing oriented stacks of semicrystalline PP like neat precursors of hard-elastic thermoplasts. Respective predrawn films are softer than the undrawn material, indicating conversion into the hard-elastic state. Embedding of the polyolefin significantly retards neck formation. The polyolefin microfibrils can easily be extracted from the water-soluble matrix.
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Affiliation(s)
- Norbert Stribeck
- Department of Chemistry, University of Hamburg, Bundesstrasse. 45, D-20146 Hamburg, Germany
| | - Ahmad Zeinolebadi
- Department of Chemistry, University of Hamburg, Bundesstrasse. 45, D-20146 Hamburg, Germany
| | - Stoyko Fakirov
- Mechanical Engineering Department, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Debes Bhattacharyya
- Mechanical Engineering Department, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Stephan Botta
- HASYLAB at DESY, Notkestrasse. 85, D-22603 Hamburg, Germany
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Stribeck N, Nöchel U, Funari SS. Melting and Crystallization of Differently Oriented Sets of Crystallites in Hard-Elastic Polypropylene. Macromolecules 2009. [DOI: 10.1021/ma8025282] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- N. Stribeck
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany, and HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - U. Nöchel
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany, and HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - S. S. Funari
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany, and HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany
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Stribeck N, Nöchel U, Almendárez Camarillo A, Roth SV, Dommach M, Bösecke P. SAXS Study of Oriented Crystallization of Polypropylene from a Quiescent Melt. Macromolecules 2007. [DOI: 10.1021/ma070251t] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- N. Stribeck
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany; HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany; and ESRF, 6 rue Jules Horowitz, B.P. 220, 38043 Grenoble Cedex 9, France
| | - U. Nöchel
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany; HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany; and ESRF, 6 rue Jules Horowitz, B.P. 220, 38043 Grenoble Cedex 9, France
| | - A. Almendárez Camarillo
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany; HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany; and ESRF, 6 rue Jules Horowitz, B.P. 220, 38043 Grenoble Cedex 9, France
| | - S. V. Roth
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany; HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany; and ESRF, 6 rue Jules Horowitz, B.P. 220, 38043 Grenoble Cedex 9, France
| | - M. Dommach
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany; HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany; and ESRF, 6 rue Jules Horowitz, B.P. 220, 38043 Grenoble Cedex 9, France
| | - P. Bösecke
- Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstr. 45, 20146 Hamburg, Germany; HASYLAB at DESY, Notkestr. 85, 22603 Hamburg, Germany; and ESRF, 6 rue Jules Horowitz, B.P. 220, 38043 Grenoble Cedex 9, France
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Zhang Y, Leblanc-Boily V, Zhao Y, Prud'homme RE. Wide angle X-ray diffraction investigation of crystal orientation in miscible blend of poly(ε-caprolactone)/poly(vinyl chloride) crystallized under strain. POLYMER 2005. [DOI: 10.1016/j.polymer.2005.06.114] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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