Interpenetrating polymer network adhesive bonding of PEEK to titanium for aerospace application
-
Sabbir Ahmed
and
Shantanu Bhowmik
Abstract
This investigation highlights the rationale of epoxy-novolac interpenetrating polymer network (IPN) adhesive bonding of low-pressure plasma treated polyether ether ketone (PEEK) to plasma nitrided titanium for aerospace application. Physico-chemical characterization of surface modified PEEK is carried out by surface energy measurement and X-ray photoelectron spectroscopy (XPS) analysis. Lap shear tensile tests are carried out to measure mechanical properties such as lap-shear tensile strength, Young’s modulus, percentage elongation at break (% EB) and toughness of the adhesive bonded PEEK to titanium joint. XPS analysis reveals the presence of the oxygen (O) functional group into the plasma treated PEEK surface. This polar functional group O increases the surface energy on the plasma treated PEEK surface, and consequently, the adhesive bond strength is enhanced. The values of Young’s modulus, % EB and toughness of epoxy-novolac IPN adhesive bonded plasma treated PEEK to plasma nitrided titanium are increased considerably in respect to epoxy-novolac IPN adhesive bonded untreated PEEK to untreated titanium joint. Therefore, the present investigation concludes that the adhesive bond strength not only depends on the surface characteristics of PEEK and titanium, but also on the cohesive properties of the adhesive.
Acknowledgements
The authors gratefully acknowledge financial support given by Defence Research and Development Organization (DRDO), Government of India and Amrita Vishwa Vidyapeetham, Coimbatore, India for providing necessary facilities to execute this investigation.
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/polyeng-2018-0148).
©2019 Walter de Gruyter GmbH, Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Material properties
- Interpenetrating polymer network adhesive bonding of PEEK to titanium for aerospace application
- NanoSiO2 strengthens and toughens epoxy resin/basalt fiber composites by acting as a nano-mediator
- Structure and properties of PA6-66/γ-aminopropyltriethoxysilane-modified clay nanocomposites prepared by in situ polymerization
- Tribological and mechanical properties of polyamide-11/halloysite nanotube nanocomposites
- Dynamic and creep analysis of polyvinyl alcohol based films blended with starch and protein
- Effect of addition of silicone oil on the rheology of fumed silica and polyethylene glycol shear thickening suspension
- Thermal degradation kinetics of oxo-degradable PP/PLA blends
- Preparation and assembly
- Comparative studies of energy saving polymers and fabrication of high performance transparent polymer by solvent bonding
- Preparation and characterization of poly(lactic acid)/sisal fiber bio-composites under continuous elongation flow
- Graphene oxide modification for enhancing high-density polyethylene properties: a comparison between solvent reaction and melt mixing
- Comparison of two encapsulation systems of UV stabilizers on the UV protection efficiency of wood clear coats
