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Analysis of Solvent Effect on Mechanical Properties of Poly(ether ether ketone) Using Nano-indentation
Tanveer Iqbal*,Saima Yasin,Ahmad Shakeel,Hamayoun Mahmood,Fahad Nazir,Paul F. Luckham
Author NameAffiliationE-mail
Tanveer Iqbal* Department of Chemical, Polymer & Composite Materials Engineering, University of Engineering & Technology, Lahore, KSK Campus, 54890, Pakistan tanveer@uet.edu.pk 
Saima Yasin Department of Chemical, Polymer & Composite Materials Engineering, University of Engineering & Technology, Lahore, KSK Campus, 54890, Pakistan  
Ahmad Shakeel Department of Chemical, Polymer & Composite Materials Engineering, University of Engineering & Technology, Lahore, KSK Campus, 54890, Pakistan  
Hamayoun Mahmood Department of Chemical, Polymer & Composite Materials Engineering, University of Engineering & Technology, Lahore, KSK Campus, 54890, Pakistan  
Fahad Nazir Department of Chemical, Polymer & Composite Materials Engineering, University of Engineering & Technology, Lahore, KSK Campus, 54890, Pakistan  
Paul F. Luckham Department of Chemical Engineering & Technology, Imperial College London, South Kensington, SW7 2 AZ, UK  
Abstract:
Poly (ether ether ketone)(PEEK) is a high-performance semi-crystalline thermoplastic polymer.Exposure of the polymeric surface to solvents can have a strong effect like softening/swelling of polymeric network or dissolution.In this study,nano-indentation analysis was performed to study the effect of acetone on the surface mechanical properties of PEEK using different exposure time.The experiments were performed with a constant loading rate (10 nm/s) to a maximum indentation displacement (1000 nm).A 30-second hold segment was included at the maximum load to account for any creep effects followed by an unloading segment to 80% unloading.The indentation hardness and the elastic modulus were computed as a continuous function of the penetration displacement in the continuous stiffness mode (CSM) indentation.The experimental data showed that the peak load decreased from ~5.2 mN to ~1.7 mN as exposure time in solvent environment increased from 0 to 18 days.The elastic modulus and the hardness of PEEK samples also displayed a decreasing trend as a function of exposure time in the solvent environment.Two empirical models were used to fit the experimental data of hardness as a function of exposure time which showed a good agreement with the experimental values.
Key words:  Solvent  Nano-indentation  Poly (ether ether ketone)  Modulus  Hardness
FundProject:
用纳米压痕法分析溶剂对聚醚醚酮(PEEK)力学性能的影响
TanveerIqbal*,Saima Yasin,Ahmad Shakeel,Hamayoun Mahmood,Fahad Nazir,Paul F. Luckham
摘要:
关键词:  
DOI:10.1063/1674-0068/31/cjcp1709173
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