A5060664034- Epoxy Resin Curing Processes
- Polymer crystallization and properties
- Additive Manufacturing and 3D Printing Technologies
- Natural Fiber Reinforced Composites
- Mechanical Behavior of Composites
- Fiber-reinforced polymer composites
- Photopolymerization techniques and applications
- Injection Molding Process and Properties
- biodegradable polymer synthesis and properties
- Cellular and Composite Structures
- Polymer Nanocomposites and Properties
- Advanced machining processes and optimization
- Silicone and Siloxane Chemistry
- Synthesis and properties of polymers
- High-Velocity Impact and Material Behavior
- Tribology and Wear Analysis
- Interactive and Immersive Displays
- Lignin and Wood Chemistry
- Asphalt Pavement Performance Evaluation
- Mechanical stress and fatigue analysis
- Structural Analysis of Composite Materials
- Material Properties and Processing
- Engineering Technology and Methodologies
- Polymer composites and self-healing
- Electrospun Nanofibers in Biomedical Applications
Mondragon University
2010-2025
Abstract This paper investigates the potential of UV pultrusion to produce hat‐shaped profiles reinforced with quasi‐isotropic non‐crimp fabric withstand lateral loading scenarios that are gaining relevance in automotive applications. Out‐of‐plane crushing tests proved new profile capacities were comparable those from similar composite structures manufactured less productive prepreg‐based technologies. Additionally, when filling a 3D‐printed insert inspired by trabecular structure beetle...
The emergence of new high-performance thermoplastics to replace thermosets in fiber-reinforced polymers puts up a challenge: their machining. In this study, carbon poly-cyclic butylene terephthalate laminates were manufactured, drilled, and inspected. Different commercial drill geometries machining conditions compared. Roughness, microscopy, non-destructive tests allowed us determine the hole quality as well delamination. surface showed better results after working at most common cutting...
Abstract The present paper highlights the benefits of multiaxially reinforced profiles manufactured by out die ultraviolet (UV) cured pultrusion. Thanks to low pulling forces inherent this technology, we could manufacture a quasi‐isotropic laminate with high fiber content (62% in volume). Even if just one fifth reinforcement was arranged longitudinally, orientation at ±45° and 90° layers not distorted. in‐plane properties new balanced configuration improved impact notched resistance compared...
Abstract The effects of processing parameters on the strength fusion bonding interface have been investigated. was generated when an isotactic polypropylene homopolymer injection molded a solid self‐reinforced substrate. measured in shear configuration, and melting behavior substrate studied using differential scanning calorimetry. results show that strong can be achieved correct are chosen. interfacial is largely improved if temperature higher than layer, these specimens failure does not...
The study was conducted to evaluate the cytocompatibility and hydrolytic degradability of new poly(lactic acid)/polyethylene glycol-polyhedral oligomeric silsesquioxane (peg-POSS/PLLA) nanocomposite as potential material for cartilage regeneration. PLLA scaffolds containing 0 5% peg-POSS were fabricated by electrospinning. Human mesenchymal stem cells (hMSC's) cultured in vitro material. Hydrolytic degradation studies also carried out analyze mass loss rate nanocomposites through time....
Abstract A commercial talc‐filled polypropylene/ethylene‐propylene‐diene terpolymer composite was repeatedly injection molded up to five cycles study the effects of reprocessing on structure, morphology, and mechanical properties. Reprocessing did not change either chemical structure or thermal behavior composite, but led a slight molecular weight reduction, due shear–stress‐induced chain scission. Talc ethylene‐propylene‐diene content remained unchanged with reprocessing, whereas size...
Carbon fiber reinforced epoxy composites were successfully manufactured by a new compression resin transfer molding process. The main innovation is that the injection stage vacuum assisted. high volume fraction and low void content are promising properties for structural applications. samples tested under instrumented falling weight impact loading. Based on contact time delamination plots, damage initiation energy threshold has been found to be 1.42 J, from plot 30.25 J penetration deduced....
Abstract A new method of toughening polymerized cyclic butylene terephthalate (pCBT) with tetrahydrofuran (THF) is proposed. The pCBT was prepared by in situ ring‐opening polymerization a commercial terephthalate, form poly(butylene terephthalate), the presence THF. In comparison to conventionally pCBT, resultant material found be ductile, showing strain at break well above 100% tensile tests. Other matrix properties, such as modulus, strength and glass transition temperature, were not...
Abstract Experimental values of the temperature on wall and into die were obtained for pultrusion a modified acrylic resin. The equation continuity, energy balance, coupled with kinetic expression curing system, are solved using difference method to calculate conversion profiles in thickness direction rectangular die. effects process variables (e.g. pulling rate, temperature, content fibers) performance evaluated.