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Yan P, Kang S, Ma L. The Influence of Glass Fiber/Glass Fiber Powder with β-Nucleating Agent on the Properties of Polypropylene. INT J POLYM SCI 2023. [DOI: 10.1155/2023/1240792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
Glass fiber-reinforced polypropylene (PP/GF) has been widely used due to its high stiffness, but for some applications that need low-module characteristics, PP/GF will have limitations due to its lower toughness, so it is necessary to develop glass fiber-modified polypropylene with good stiffness–toughness balance performance. In this study, two average length glass fibers (4.5 mm and 12 mm) and glass fiber powder, combined with β-nucleating agent, were used to investigate the effects on the crystallization and mechanical properties of polypropylene. The results show that compared with glass fiber, glass fiber powder cooperates with β-nucleating agent reinforced polypropylene composite showed good stiffness–toughness balance performance, and β-crystals were found in the composite measured by Differential Scanning Calorimetry (DSC), the presence of β-crystals can improve the toughness of the composite.
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Yang SG, Wei ZZ, Cseh L, Kazemi P, Zeng XB, Xie HJ, Saba H, Ungar G. Bowls, vases and goblets-the microcrockery of polymer and nanocomposite morphology revealed by two-photon optical tomography. Nat Commun 2021; 12:5054. [PMID: 34417451 PMCID: PMC8379155 DOI: 10.1038/s41467-021-25297-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 07/29/2021] [Indexed: 11/09/2022] Open
Abstract
On the >1 µm scale the morphology of semicrystalline plastics like polyethylene or Nylon features spherulites, "shish-kebabs", cylinddrites and other crystalline aggregates which strongly affect mechanical and other material properties. Current imaging techniques give only a 2D picture of these objects. Here we show how they can be visualized in 3D using fluorescent labels and confocal microscopy. As a result, we see spherulites in 3D, both in neat polymers and their nanocomposites, and observe how unevenly nanoparticles and other additives are distributed in the material. Images of i-polypropylene and biodegradable poly(lactic acid) reveal previously unsuspected morphologies such as "vases" and "goblets", nonspherical "spherulites" and, unexpectedly, "shish-kebabs" grown from quiescent melt. Also surprisingly, in nanocomposite sheets spherulite nucleation is seen to be copied from one surface to another, mediated by crystallization-induced pressure drop and local melt-flow. These first results reveal unfamiliar modes of self-assembly in familiar plastics and open fresh perspectives on polymer microstructure.
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Affiliation(s)
- Shu-Gui Yang
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Centre for Soft Matter, Xi'an Jiaotong University, Xi'an, China
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
| | - Zhen-Zhen Wei
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
- College of Textile and Clothing Engineering, National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, China
| | - Liliana Cseh
- Romanian Academy, Coriolan Dragulescu Institute of Chemistry, Timisoara, Romania
| | - Pantea Kazemi
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
| | - Xiang-Bing Zeng
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
| | - Hui-Jie Xie
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou, China
| | - Hina Saba
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou, China
| | - Goran Ungar
- State Key Laboratory for Mechanical Behaviour of Materials, Shaanxi International Research Centre for Soft Matter, Xi'an Jiaotong University, Xi'an, China.
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK.
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3
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A facile methodology to effectively improve the melt strength and microcellular foamability of isotactic polypropylene. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02101-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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4
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Fluorescence microscopy tracking of dyes, nanoparticles and quantum dots during growth of polymer spherulites. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122246] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Slouf M, Vacková T, Zhigunov A, Sikora A, Piorkowska E. Nucleation of Polypropylene Crystallization with Gold Nanoparticles. Part 2: Relation between Particle Morphology and Nucleation Activity. J MACROMOL SCI B 2016. [DOI: 10.1080/00222348.2016.1153402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Vasina A, Slepička P, Kašpárková I, Kolská Z, Bláhová O, Švorčík V. Interaction of polypropylene with sputtered and evaporated au nanolayers. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- A. Vasina
- Department of Solid State Engineering; Institute of Chemical Technology; 166 28 Prague; Czech Republic
| | - P. Slepička
- Department of Solid State Engineering; Institute of Chemical Technology; 166 28 Prague; Czech Republic
| | - I. Kašpárková
- Department of Solid State Engineering; Institute of Chemical Technology; 166 28 Prague; Czech Republic
| | - Z. Kolská
- Faculty of Science; J.E. Purkyne University; Usti nad Labem; Czech Republic
| | - O. Bláhová
- New Technologies-Research Centre in Westbohemian Region; University of West Bohemia; 306 14 Plzen; Czech Republic
| | - V. Švorčík
- Department of Solid State Engineering; Institute of Chemical Technology; 166 28 Prague; Czech Republic
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Lee E, Hong JY, Ungar G, Jang J. Crystallization of poly(ethylene oxide) embedded with surface-modified SiO2nanoparticles. POLYM INT 2012. [DOI: 10.1002/pi.4402] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Eunwoo Lee
- World Class University (WCU) Program of Chemical Convergence for Energy and Environment (C 2 E 2 ), School of Chemical and Biological Engineering; College of Engineering, Seoul National University (SNU); 599 Gwanangno Gwanak-gu, Seoul 151-742 Korea
| | - Jin-Yong Hong
- World Class University (WCU) Program of Chemical Convergence for Energy and Environment (C 2 E 2 ), School of Chemical and Biological Engineering; College of Engineering, Seoul National University (SNU); 599 Gwanangno Gwanak-gu, Seoul 151-742 Korea
| | - Goran Ungar
- Department of Engineering Materials; University of Sheffield; Mappin Street Sheffield S1 3JD UK
| | - Jyongsik Jang
- World Class University (WCU) Program of Chemical Convergence for Energy and Environment (C 2 E 2 ), School of Chemical and Biological Engineering; College of Engineering, Seoul National University (SNU); 599 Gwanangno Gwanak-gu, Seoul 151-742 Korea
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Xu JZ, Liang YY, Huang HD, Zhong GJ, Lei J, Chen C, Li ZM. Isothermal and nonisothermal crystallization of isotactic polypropylene/graphene oxide nanosheet nanocomposites. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-9975-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Slouf M, Sikora A, Pavlova E, Vlkova H, Baldrian J, Base T, Piorkowska E. Nucleated crystallization of isotactic polypropylene in multilayered sandwich nanocomposites with gold particles. J Appl Polym Sci 2012. [DOI: 10.1002/app.36589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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10
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Xu JZ, Liang YY, Zhong GJ, Li HL, Chen C, Li LB, Li ZM. Graphene Oxide Nanosheet Induced Intrachain Conformational Ordering in a Semicrystalline Polymer. J Phys Chem Lett 2012; 3:530-535. [PMID: 26286059 DOI: 10.1021/jz300062z] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The physical origin of graphene oxide nanosheet (GONS)-driven polymer crystallization was studied from the perspective of intrachain conformational ordering. Time-resolved Fourier-transform infrared spectroscopy indicated that both conformational ordering and crystallization of isotactic polypropylene (iPP) were obviously accelerated by the presence of GONSs, indicating their efficient nucleation activity for iPP crystallization. Furthermore, the ordering of long helical segments occurred prior to the crystallization of iPP, as revealed by two-dimensional correlation infrared analysis. Compared to pure bulk system, the presence of GONSs was in favor of the formation of long ordering segments, especially at the early stage, accompanied by considerable enhancement of the crystallization kinetics. GONS-driven iPP crystallization was suggested to be attributed to this GONS-induced intrachain conformational ordering.
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Affiliation(s)
| | | | | | | | | | - Liang-Bin Li
- §National Synchrotron Radiation Laboratory and College of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
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Xu JZ, Chen C, Wang Y, Tang H, Li ZM, Hsiao BS. Graphene Nanosheets and Shear Flow Induced Crystallization in Isotactic Polypropylene Nanocomposites. Macromolecules 2011. [DOI: 10.1021/ma1028104] [Citation(s) in RCA: 145] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jia-Zhuang Xu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Chen Chen
- Analytical and Testing Center, Sichuan University, Chengdu, 610065, China
| | - Yan Wang
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Hu Tang
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - 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, United States
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Pavlova E, Slouf M, Sandova H, Baldrian J, Sikora A, Lednicky F, Masirek R, Piorkowska E. Nucleation of Polypropylene with Gold Nanoparticles. Part 1: Introduction of Sandwich Method for Evaluation of Very Weak Nucleation Activity. J MACROMOL SCI B 2010. [DOI: 10.1080/00222340903546812] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ewa Pavlova
- a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2 162 06, Prague 6, Czech Republic
| | - Miroslav Slouf
- a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2 162 06, Prague 6, Czech Republic
| | - Hana Sandova
- a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2 162 06, Prague 6, Czech Republic
| | - Josef Baldrian
- a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2 162 06, Prague 6, Czech Republic
| | - Antonin Sikora
- a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2 162 06, Prague 6, Czech Republic
| | - Frantisek Lednicky
- a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2 162 06, Prague 6, Czech Republic
| | - Robert Masirek
- a Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky Sq. 2 162 06, Prague 6, Czech Republic
| | - Ewa Piorkowska
- b Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences , Sienkiewicza 112, 90 630, Lodz, Poland
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