| People | Locations | Statistics |
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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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Sarlin, Essi Linnea
Tampere University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (51/51 displayed)
- 2024Influence of CO2 laser surface treatment of basalt fibers on the mechanical properties of epoxy/basalt compositescitations
- 2024In-situ SEM micropillar compression and nanoindentation testing of SU-8 polymer up to 1000 s−1 strain ratecitations
- 2024Effect of unbleached and bleached softwood cellulose pulp fibers on poly(lactic acid) propertiescitations
- 2024The role of hard and soft segments in the thermal and mechanical properties of non-isocyanate polyurethanes produced via polycondensation reactioncitations
- 2024Bio-functionalization of fillers with natural phytic acid for sustainable flame-retardant agents for natural rubber compositescitations
- 2023Effect of graphene oxide fibre surface modification on low-velocity impact and fatigue performance of flax fibre reinforced compositescitations
- 2023Cyclic carbonates as building blocks for non-isocyanate polyurethanescitations
- 2022Impact damage resistance of novel adhesively bonded natural fibre composite – Steel hybrid laminatescitations
- 2022Towards Sustainable Composite Manufacturing with Recycled Carbon Fiber Reinforced Thermoplastic Compositescitations
- 2022Micro-fatigue test - A new dimension towards cyclic load test for interface characterisation
- 2022Novel Micronized Mica Modified Casein–Aluminum Hydroxide as Fire Retardant Coatings for Wood Productscitations
- 2022Mixed Surface Chemistry on Carbon Fibers to Promote Adhesion in Epoxy and PMMA Polymerscitations
- 2022Comparison of interlaminar and interfacial shear strength with recycled carbon fiber
- 2022Impact and fatigue tolerant natural fibre reinforced thermoplastic composites by using non-dry fibrescitations
- 2021Experimental study of adhesively bonded natural fibre composite – steel hybrid laminatescitations
- 2021Hydrolytic stability of polyurethane/polyhydroxyurethane hybrid adhesivescitations
- 2021Modulating impact resistance of flax epoxy composites with thermoplastic interfacial tougheningcitations
- 2021One surface treatment, multiple possibilitiescitations
- 2021UV-Assisted 3D Printing of Polymer Composites from Thermally and Mechanically Recycled Carbon Fiberscitations
- 2021Chemical ageing effects on the ply and laminate strength of a filament wound cross-ply GFRPcitations
- 2021One Surface Treatment, Multiple Possibilities: Broadening the Use-Potential of Para-Aramid Fibers with Mechanical Adhesioncitations
- 2021Effect of graphene oxide surface treatment on the interfacial adhesion and the tensile performance of flax epoxy compositescitations
- 2020Examining interfacial interactions in a range of polymers using poly(ethylene oxide) functionalized carbon fiberscitations
- 2020Development in additive methods in aramid fiber surface modification to increase fiber-matrix adhesioncitations
- 2020Resizing approach to increase the viability of recycled fibre-reinforced compositescitations
- 2020Feasibility of polyamines and cyclic carbonate terminated prepolymers in polyurethane/polyhydroxyurethane synthesiscitations
- 2020The effect of substrate pre-treatment on durability of rubber-stainless steel adhesioncitations
- 2020Lubricated icephobic coatings prepared by flame spraying with hybrid feedstock injectioncitations
- 2019Miniature CoCr laser welds under cyclic shearcitations
- 2019Properties of pyrolytically recycled carbon fibers and their re-use in composites
- 2019DLC-treated aramid-fibre compositescitations
- 2019Automatization and stress analysis data of CoCr laser weld fatigue testscitations
- 2019Icephobic Behaviour and Thermal Stability of Flame-Sprayed Polyethylene Coatingcitations
- 2018Adhesion properties of novel steel –biocomposite hybrid structure
- 2018Temperature scanning stress relaxation of an autonomous self-healing elastomer containing non-covalent reversible network junctionscitations
- 2018Improved Stability of Atomic Layer Deposited Amorphous TiO2 Photoelectrode Coatings by Thermally Induced Oxygen Defectscitations
- 2017Automated high-throughput microbond tester for interfacial shear strength studies
- 2017The effect of matrix type on ageing of thick vinyl ester glass-fibre-reinforced laminatescitations
- 2017Fatigue strength of laser-welded foam-filled steel sandwich beamscitations
- 2017The effect of multi-wall carbon nanotube morphology on electrical and mechanical properties of polyurethane nanocompositescitations
- 2017Erosive wear of filled vinylester composites in water and acidic media at elevated temperaturecitations
- 2017Vegetable fillers for electric stimuli responsive elastomerscitations
- 2017Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structurescitations
- 2017Microwave induced hierarchical nanostructures on aramid fibers and their influence on adhesion properties in a rubber matrixcitations
- 2017Minimization of losses in natural rubber films for dielectric energy harvesters
- 2016Cellulose nanofibril film as a piezoelectric sensor materialcitations
- 2016Investigation of the thermal-mechanical response of a hybrid material in dynamic loading conditions
- 2016Plastic deformation of powder metallurgy tungsten alloy foils for satellite enclosures
- 2015Hydrofluoric-nitric-sulphuric-acid surface treatment of tungsten for carbon fibre-reinforced composite hybrids in space applicationscitations
- 2015Interface modification of glass fibre-polyester composite-composite joints using peel pliescitations
- 2014Characterisation of Novel Corrosion Resistant Stainless Steel/Rubber/Composite Hybrid Structures
Places of action
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article
Feasibility of polyamines and cyclic carbonate terminated prepolymers in polyurethane/polyhydroxyurethane synthesis
Abstract
Polyurethanes are a well-established part of adhesive markets. However due to the toxicity of di-isocyanates used in the synthesis, finding an alternative route to synthetize polyurethanes is increasingly important. One strategy is to use cyclic carbonate terminated prepolymers with polyamines to yield polyhydroxyurethanes. This research highlights the possibility to use commercially available polyurethane prepolymers with different isocyanate chemistries for cyclic carbonate terminated prepolymer synthesis with the help of glycerol carbonate and a catalyst. These synthetized prepolymers were used in a screening study with different commercially available low toxic amines. It was observed that when secondary amines were used, the reaction advanced at room temperature with no further heating required. The development of lap shear strength over time on stainless steel, gel content, tensile strength and elongation were measured from room temperature cured polymers. The synthetized polyurethane/polyhydroxyurethane (PU/PHU) hybrid materials had high initial lap shear strength close to current industrial polyurethane adhesives. The strength development over time was negligible. Full conversions were seen within one month from the reaction. Tensile strength levels were slightly lower than typical industrial polyurethane adhesives. Even though the lap shear strength results and gel contents at room temperature were on a good level, curing at elevated temperature had a positive impact on them. The best performing combination was cyclic carbonate functionalised hexamethylene di-isocyanate prepolymer with multifunctional polyethyleneimine amine. In short, di-isocyanate free PU/PHU hybrid materials were successfully synthetized from commercial raw materials and their performance was comparable with current industrial polyurethane adhesives.