Searched for: subject%3A%22Polymers%22
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Dijkstra, Bas (author)
This research investigates the challenges a user faces in the activation step in shape-changing products. First, previous research on the topic of 4DP is reviewed and important factors are described. Namely, activation temperature, print temperature, print speed, and layer height have a signifi cant impact on the shrinkage...
master thesis 2024
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Sekar, S.A. (author), Hunt, A. (author)
Additive manufacturing of sensors and actuators together with structural materials and electronics will make it possible to fabricate innovative system designs that are overly laborious to realise with conventional methods. While printing of the structural materials and electronics are advancing fast, the additive manufacturing methods for...
journal article 2024
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IJssel de Schepper, S.R. (author), Hunt, A. (author)
The additive manufacturing of electroactive polymer (EAP) devices poses significant challenges due to their distinct structure and dissimilar properties of their constituent materials. It requires deposition of multiple functional materials with different properties, achieving μm-scale resolution in layer thickness, and executing incremental...
journal article 2024
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de Winter, Jikke (author), Manzaneque Garcia, T. (author), Ghatkesar, M.K. (author)
The emerging high-resolution 3D printing technique called two-photon polymerization (2PP) enables to print devices bottom-up rapidly, contrary to the top-down lithography-based fabrication methods. In this work, various polymer microbeams are 3D printed and their resonant characteristics are analyzed to understand the origin of damping. The...
journal article 2024
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Luan, Liping (author), Shi, Puxin (author), Wang, Zhi (author), Kapteijn, F. (author), Liu, Xinlei (author)
Novel membrane materials for H<sub>2</sub> separation are wanted. How to overcome the “trade-off” between membrane permeability and selectivity is a tough challenge. Here we report new random organic framework membranes with benzimidazole and imine linkages to form hierarchical channels. Both high H<sub>2</sub>-selective and fast H<sub>2</sub...
journal article 2024
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Wang, Xintu (author), Xu, Yanghui (author), Ou, Q. (author), Chen, Wenwen (author), van der Meer, W.G.J. (author), Liu, G. (author)
The excessive use and accumulation of water-soluble polymers (WSPs, known as “liquid plastics”) in the environment can pose potential risks to both ecosystems and human health, but the environmental fate of WSPs remains unclear. Here, the adsorption behavior of WSPs with different molecular weight on kaolinite (Kaol) and montmorillonite (Mt)...
journal article 2024
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Yao, L. (author), Chuai, Mingyue (author), Li, Hanyue (author), Chen, Xiangming (author), Quan, D. (author), Alderliesten, R.C. (author), Beyens, M. (author)
Temperature can significantly affect fatigue delamination growth (FDG) behavior in composites, while fiber bridging has been frequently reported during FDG. The focus of this study was therefore on investigating temperature effects on FDG behavior with fiber bridging. Mode I fatigue delamination experiments were conducted on a thermoset...
journal article 2024
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Li, Yuanyuan (author), Li, Jun (author), Bai, Tao (author), Chen, Anqi (author), Gu, Dengjun (author), Gao, Y. (author)
Based on the efficient resource utilization of scrap tires, pyrolysis carbon black (PCB), and pyrolysis oil of waste tire (TPO), scrap tires' products were treated using dry styrene-butadiene-styrene (SBS) polymer modification of asphalt. The products of scrap tires, PCB and TPO, were handled using dry SBS polymer modification of asphalt...
journal article 2024
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Staal, Jeroen (author), Caglar, Baris (author), Michaud, Véronique (author)
Frontal polymerisation has the potential to bring unprecedented reductions in energy demand and process time to produce fibre reinforced polymer composites. Production of epoxy-based fibre reinforced polymer parts with high fibre volume content, commonly encountered in industry, is however hindered by the heat sink created by the fibres and...
journal article 2024
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Egelhaaf, Stefan U. (author), Mao, Xiaoming (author), Dijkstra, Marjolijn (author), Pine, David J (author), Kumar, Sanat K. (author), Aubin-Tam, M.E. (author), Koenderink, G.H. (author)
Soft materials are usually defined as materials made of mesoscopic entities, often self-organised, sensitive to thermal fluctuations and to weak perturbations. Archetypal examples are colloids, polymers, amphiphiles, liquid crystals, foams. The importance of soft materials in everyday commodity products, as well as in technological applications,...
journal article 2024
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Ulyanov, Boris (author)
Liquid crystalline polymers have recently attracted attention for their great tensile properties. However, their interlaminar fracture toughness is low. To solve this, toughening approaches inspired by Nature are applied, exploiting the shaping freedom of fused deposition modelling. Three approaches are studied: the matchstick approach, z...
master thesis 2023
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van Zeijl, Thomas (author)
In the field of 3D printing, Multi Material Additive Manufacturing (MMAM) has gained substantial recognition, as it offers interesting new possibilities. MMAM allows the combination of diverse polymers to create products with enhanced, composite properties. However, a significant challenge emerges when chemically incompatible polymers are...
master thesis 2023
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Åsbø, Ola (author)
FRP is increasingly utilised in the built environment, following successful implementations in the aerospace and marine industry. However, it exhibits poor stiffness and stability compared to conventional materials such as steel, making it challenging to satisfy serviceability and comfort requirements. Optimising FRP to address these challenges...
master thesis 2023
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Huo, L. (author)
Fibre-reinforced polymer composite laminates are used extensively nowadays in various applications due to their superior mechanical properties. However, a great weakness of composite laminates is their susceptibility to out-of-plane concentrated loading (which can be broadly divided into quasi-static indentation and impact) owing to their weak...
doctoral thesis 2023
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MODI, ANIKET (author)
CO2 flooding is a widely employed method for enhancing oil recovery. However, it faces challenges stemming from differences in viscosity and density between oil and CO2, leading to poor sweep efficiency. This can result in issues such as viscous fingering, channelling, and gravity segregation, causing premature breakthroughs and excessive gas...
master thesis 2023
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Liu, Haozhe (author)
The high theoretical volumetric capacity, abundance of magnesium in the earth’s crust, and the relatively good safety features of Mg metal, have drawn great attention to developing Magnesium batteries as a follow-up to the success of Li-ion battery technology. However, the magnesium metal is incompatible with most electrolyte solvents and salts,...
master thesis 2023
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Shanka Vasuki, Sathya (author)
This thesis aims to enhance the performance of solar cells, specifically those used by Solarge, through comprehensive research on optical characterization and texture fabrication.<br/>In the first part, the focus is on understanding and optimizing the optical properties of Solarge's polymer front sheet and encapsulant. Through meticulous...
master thesis 2023
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Ahmed, Junaid (author)
The use of Glass Fibre-Reinforced Polymer as a building material in structures or structural components is on the rise. Standards such as CUR96, DNV and JRC provide a basis of design with the material. However, there is a lack of confidence in the design phase with structures made of Glass Fibre-Reinforced Polymer, resulting in the use of large...
master thesis 2023
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Motreuil-Ragot, P.A. (author)
An organ-on-chip (OoC) is a microelectromechanical (MEMS) device that aims to recapitulate in-vitro the physiology of the smallest functional unit of an organ in order to perform drug analysis or study disease models. OoCs are very complex systems that require actuation and sensing capabilities within controlled and delicate environment. The...
doctoral thesis 2023
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Dostanic, M. (author)
The high death toll of cardiovascular diseases worldwide and the lack of effective treatments for them are the main motivation for developing alternative and more efficient models for cardiac drug development and disease research. The missing link between current laboratory research on static in vitro and animal models and the clinical stage...
doctoral thesis 2023
Searched for: subject%3A%22Polymers%22
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