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Wang J, Li L, He Y, Song H, Chen X, Guo J. The effect of thermo-oxidative ageing on crystallization, dynamic and static mechanical properties of long glass fibre-reinforced polyamide 10T composites. ROYAL SOCIETY OPEN SCIENCE 2018; 5:172029. [PMID: 30110411 PMCID: PMC6030261 DOI: 10.1098/rsos.172029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/02/2018] [Indexed: 06/08/2023]
Abstract
The performances and microstructure of long glass fibre-reinforced polyamide 10T (PA10T/LGF) composites that experienced different ageing temperatures (160 and 200°C) with increasing ageing time are characterized by differential scanning calorimetry (DSC), mechanical analysis, thermogravimetric analysis (TGA) and scanning electron microscopy to probe the correlation between properties of the composites and thermo-oxidative ageing. The DSC results show that PA10T/LGF composites occur on degradation, the fracture of molecular chains and the destruction of crystallization structure, which leads to the crystallization and melting peaks of PA10T/LGF composites to shift to high temperature. On the basis of dynamic mechanical analysis data, the reduction of the interfacial bonding between the glass fibre and PA10T matrix and the motion of molecular chain segments result in the thermo-oxidative ageing of composites. According to the calculation of activation energy (E), thermo-oxidative temperature and ageing time can bring about the decline of the E value, proving the deterioration in performance of PA10T/LGF composites. In view of TGA, the increase in the thermo-oxidative temperature and ageing time promotes the degradation of PA10T/LGF composites. The tensile, flexural and notched impact strengths of PA10T/LGF composites decline with prolonging the ageing temperature and time. The surface of materials produces some microcracks and the cross-section surface of PA10T/LGF composites becomes rougher.
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Affiliation(s)
- Jian Wang
- Department of Polymer Material and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang, Guizhou 550014, People's Republic of China
| | - Lingtong Li
- Key Laboratory of Advanced Materials Technology Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Yong He
- Department of Polymer Material and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang, Guizhou 550014, People's Republic of China
| | - Haishuo Song
- Department of Polymer Material and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang, Guizhou 550014, People's Republic of China
| | - Xiaolang Chen
- Key Laboratory of Advanced Materials Technology Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang, Guizhou 550014, People's Republic of China
| | - Jianbing Guo
- Department of Polymer Material and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang, Guizhou 550014, People's Republic of China
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Hayeemasae N, Surya I, Ismail H. Compatibilized natural rubber/recycled ethylene-propylene-diene rubber blends by biocompatibilizer. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2016. [DOI: 10.1080/1023666x.2016.1160970] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Dynamic mechanical, mechanical and thermal analysis of CPI/NBR blends: effect of blend composition and crosslink density. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1590-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hegde RR, Bhat GS, Spruiell JE, Benson R. Structure and properties of polypropylene-nanoclay composites. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0323-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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