1
|
Morphological Transformation in Polymer Composite Materials Filled with Carbon Nanoparticles: Part 2—Thermal and Mechanical Properties. MATERIALS 2022; 15:ma15155094. [PMID: 35897525 PMCID: PMC9331755 DOI: 10.3390/ma15155094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/15/2022] [Accepted: 07/18/2022] [Indexed: 02/01/2023]
Abstract
HDPE-based composite fibers filled by original and annealed carbon nanodiscs (oND and aND, respectively) were prepared by melt extrusion technology with high-temperature orientational drawing up to draw ratio DR = 8. The thermal properties of the obtained fibers were investigated by DSC and TGA methods. It was shown that the nanofillers can be influenced by high temperatures, at which the molecular mobility in the interlamellar regions became active, while the melting point and the crystallinity degree of the samples were not affected. Short- and long-term mechanical properties of the nanocomposite fibers were studied as well. Very rare mechanical testing of the knotted fibers was carried out and, as a result, a decrease of the knot strength up to 35% was detected. It was also revealed that the carbon nanodiscs do not reinforce the composite fibers and play a negative role in the creep processes, while the Young’s modulus can be improved by 2 times for the oriented samples.
Collapse
|
2
|
Vaganov G, Ivan'kova E, Didenko A, Popova E, Elokhovskiy V, Kasatkin I, Yudin V. High‐performance crystallized composite carbon nanoparticles/polyimide fibers. J Appl Polym Sci 2022. [DOI: 10.1002/app.52748] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gleb Vaganov
- Laboratory of Mechanics of Polymers and Composite Materials Institute of Macromolecular Compounds of Russian Academy of Sciences St. Petersburg Russia
| | - Elena Ivan'kova
- Laboratory of Mechanics of Polymers and Composite Materials Institute of Macromolecular Compounds of Russian Academy of Sciences St. Petersburg Russia
| | - Andrey Didenko
- Laboratory of Mechanics of Polymers and Composite Materials Institute of Macromolecular Compounds of Russian Academy of Sciences St. Petersburg Russia
| | - Elena Popova
- Laboratory of Mechanics of Polymers and Composite Materials Institute of Macromolecular Compounds of Russian Academy of Sciences St. Petersburg Russia
| | - Vladimir Elokhovskiy
- Laboratory of Mechanics of Polymers and Composite Materials Institute of Macromolecular Compounds of Russian Academy of Sciences St. Petersburg Russia
| | - Igor Kasatkin
- Research Centre for X‐ray Diffraction Studies Saint Petersburg State University St. Petersburg Russia
| | - Vladimir Yudin
- Laboratory of Mechanics of Polymers and Composite Materials Institute of Macromolecular Compounds of Russian Academy of Sciences St. Petersburg Russia
| |
Collapse
|
3
|
Zhang H, Wang W, Chen G, Zhang A, Fang X. Melt-Processable Semicrystalline Polyimides Based on 1,4-Bis(3,4-dicarboxyphenoxy)benzene Dianhydride (HQDPA): Synthesis, Crystallization, and Melting Behavior. Polymers (Basel) 2017; 9:E420. [PMID: 30965727 PMCID: PMC6418867 DOI: 10.3390/polym9090420] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/02/2017] [Accepted: 09/02/2017] [Indexed: 11/28/2022] Open
Abstract
It is a great challenge to develop semicrystalline polyimides exhibited significant recrystallization ability and fast crystallization kinetics from the melt. A series of semicrystalline polyimides based on 1,4-bis(3,4-dicarboxyphenoxy)benzene dianhydride (HQDPA) and different diamines, including 1,3-bis(4-aminophenoxy)benzene (TPER), 1,4-bis(4-aminophenoxy)benzene (TPEQ), 4,4'-oxydianiline (4,4'-ODA) and 4,4'-bis(4-aminophenoxy)biphenyl (BAPB), end capped with phthalic anhydride were synthesized. Crystallization and melting behaviors were investigated by differential scanning calorimetry (DSC). The polyimide derived from HQDPA/TPER (PI-1) exhibited a glass transition temperature (Tg) at 190 °C and double melting temperatures (Tms) at 331 °C and 350 °C, and the polyimide derived from HQDPA/TPEQ (PI-2) displayed a Tg at 214 °C and a Tm at 388 °C. PI-1 and PI-2 showed significant recrystallization ability from melt and high crystallization rate by isothermal crystallization kinetics study, while polyimides based on 4,4'-ODA and BAPB lost crystallizability once taken to the melt. These polyimides also exhibited excellent thermo-oxidative stability with 5% weight loss temperature higher than 500 °C and good mechanical properties with tensile moduli of 2.0⁻3.3 GPa, tensile strengths of 85⁻105 MPa and elongations at break of 5⁻18%. PI-1 also possessed outstanding melt flowability with less than 300 Pa·s around 370 °C by rheological measurements.
Collapse
Affiliation(s)
- Hongfei Zhang
- Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Zhenhai District, Ningbo 315201, Zhejiang, China.
- University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China.
| | - Wei Wang
- Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Zhenhai District, Ningbo 315201, Zhejiang, China.
| | - Guofei Chen
- Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Zhenhai District, Ningbo 315201, Zhejiang, China.
| | - Anjiang Zhang
- Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Zhenhai District, Ningbo 315201, Zhejiang, China.
| | - Xingzhong Fang
- Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Rd, Zhenhai District, Ningbo 315201, Zhejiang, China.
| |
Collapse
|
4
|
He M, Zong S, Zhou Y, Guo H, Fan Q. Non-isothermal crystallization kinetics of reactive microgel/nylon 6 blends. Chin J Chem Eng 2015. [DOI: 10.1016/j.cjche.2015.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
5
|
Wang W, Zhou H, Chen D, Wu M, Liu Y, Chen C. Preparations and properties of a high performance semicrystalline copolyimide and composites reinforced with glass fiber. J Appl Polym Sci 2014. [DOI: 10.1002/app.40345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wei Wang
- Neutron Scattering Laboratory; China Institute of Atomic Energy; Beijing 102413 China
| | - Hongwei Zhou
- Alan G. MacDiarmid Institute of Jilin University; Changchun 130012 China
| | - Dongfeng Chen
- Department of Nuclear Physics; China Institute of Atomic Energy; Beijing 102413 China
| | - Meimei Wu
- Neutron Scattering Laboratory; China Institute of Atomic Energy; Beijing 102413 China
| | - Yuntao Liu
- Neutron Scattering Laboratory; China Institute of Atomic Energy; Beijing 102413 China
| | - Chunhai Chen
- Alan G. MacDiarmid Institute of Jilin University; Changchun 130012 China
| |
Collapse
|