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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Cobley, Andrew
Coventry University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (38/38 displayed)
- 2023Selective soldering nozzles
- 2023Analysis of Pre-Treatment Processes to Enable Electroplating on Nitrided Steel
- 2023The challenges in selective soldering and meeting training needs
- 2021Electroless copper plating obtained by Selective Metallisation using a Magnetic Field (SMMF)citations
- 2020The effects of turmeric on the grain structure and properties of copper electrodeposited composites
- 2020MATUROLIFE: Using Advanced Material Science to Develop the Future of Assistive Technologycitations
- 2018Ultrasound assisted electroless nickel-boron plating from alkaline borohydride bath
- 2018Mechanism for the development of Sn-Cu alloy coatings produced by pulsed current electrodepositioncitations
- 2018Selective metallization of non-conductive materials by patterning of catalytic particles and the application of a gradient magnetic fieldcitations
- 2018Additive process for patterned metallized conductive tracks on cotton with applications in smart textilescitations
- 2018Selective electroless metallization of non-conductive substrates enabled by a Fe3O4/Ag catalyst and a gradient magnetic fieldcitations
- 2017Electroless deposition of nickel-boron coatings using low frequency ultrasonic agitation: Effect of ultrasonic frequency on the coatings.citations
- 2017Electroless deposition of nickel-boron coatings using low frequency ultrasonic agitation: Effect of ultrasonic frequency on the coatings properties and the deposition of electroless Ni-B composite.
- 2016Properties of electroless Ni-B-WC composite coatings
- 2016Ultrasound assisted electrodeposition of Zn and Zn-TiO2 coatingscitations
- 2016The Effect of Mixing and Degassing Conditions on the Properties of Epoxy/Anhydride Resin System
- 2016Bismuth-based composite coating for overlay applications in plain bearings
- 2015Ultrasound-assisted electrodeposition of thin Nickel-based composite coatings with lubricant particlescitations
- 2015Effect of additive concentration during copper deposition using EnFACE electrolytecitations
- 2015Ultrasonic agitation in barrel electroplating: field trial resultscitations
- 2014Functionalised copper nanoparticles as catalysts for electroless platingcitations
- 2014Ultrasound-assisted electrodeposition of composite coatings with particlescitations
- 2013Ultrasonically enabled low temperature electroless plating for advanced electronic manufacture
- 2012Ultrasonically enabled low temperature electroless plating for sustainable electronic manufacturecitations
- 2012Initial studies to optimise the sonochemical surface modification of a high Tg laminatecitations
- 2012The use of ultrasound to enable low temperature electroless platingcitations
- 2011Initial studies into the use of ultrasound to reduce process temperatures and chemical usage in the PCB desmear processcitations
- 2010Eurointerfinish 2009citations
- 2010Through hole plating of printed circuit boards using ultrasonically dispersed copper nanoparticlescitations
- 2009Electroless methods
- 2008Improved Electroless Copper Composition
- 2006Catalytic anodes for electrodepositioncitations
- 2006Use of organic reductants to lower brightener consumption in acid copper electroplating bath utilising catalytic anodescitations
- 2004Method For Desmearing Resin Accretions And Texturing Resin Without Using Solvent
- 2003Characterisation of insoluble anodes for acid copper electrodepositioncitations
- 2003The effect of insoluble anodes on the process control and deposit quality of acid copper electroplating bathscitations
- 2001Methods for achieving high speed acid copper electroplating in the PCB industrycitations
- 2001The use of insoluble anodes in acid sulphate copper electrodeposition solutionscitations
Places of action
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document
The Effect of Mixing and Degassing Conditions on the Properties of Epoxy/Anhydride Resin System
Abstract
Epoxy resin is most widely used as matrices for composites of aerospace, automotive and electronic applications due to its outstanding mechanical properties. These properties are chiefly predetermined by the chemical structure of the prepolymer and type of hardener but can also be varied by the processing conditions such as prepolymer and hardener mixing, degassing and curing conditions. In this research, the effect of degassing on the curing behaviour and the void occurrence is experimentally evaluated for epoxy /anhydride resin system. The epoxy prepolymer was mixed with an anhydride hardener and accelerator in an appropriate quantity. In order to investigate the effect of degassing on the curing behaviour and void content of the resin, the uncured resin samples were prepared using three different methods: 1) no degassing 2) degassing on prepolymer and 3) degassing on mixed solution of prepolymer and hardener with an accelerator. The uncured resins were tested in differential scanning calorimeter (DSC) to observe the changes in curing behaviour of the above three resin samples by analysing factors such as gel temperature, peak cure temperature and heat of reaction/heat flow in curing. Additionally, the completely cured samples were tested in DSC to identify the changes in the glass transition temperature (Tg) between the three samples. In order to evaluate the effect of degassing on the void content and morphology changes in the cured epoxy resin, the fractured surfaces of cured epoxy resin were examined under the scanning electron microscope (SEM). Also, the changes in the mechanical properties of the cured resin were studied by three-point bending test. It was found that degassing at different stages of resin mixing had significant effects on properties such as glass transition temperature, the void content and void size of the epoxy/anhydride resin system. For example, degassing (vacuum applied on the mixed resin) has shown higher glass transition temperature (Tg) with lower void content.