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Polymer and Organic Materials Commons™
Open Access. Powered by Scholars. Published by Universities.®
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- Additive manufacturing (1)
- Chemical initiation (1)
- Direct ink writing (1)
- Epoxy and urethane sized TCF (1)
- FEA model on sizing thickness (1)
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- Hardness (1)
- Interfacial adhesion of unsized (1)
- Load function (1)
- Moisture content (1)
- Nanoindentation (1)
- Polyurethane system: soft and hard segment TPU and TSU (1)
- Resin penetration (1)
- Rheology (1)
- Structural stability (1)
- Surface (1)
- Thermal and mechanical characterization (1)
- Thermoset polymers (1)
- Young's modulus (1)
- Publication
Articles 1 - 3 of 3
Full-Text Articles in Polymer and Organic Materials
Structural Stability Of Thermosets During Material Extrusion Additive Manufacturing, Stian K. Romberg
Structural Stability Of Thermosets During Material Extrusion Additive Manufacturing, Stian K. Romberg
Doctoral Dissertations
Over the past decade, the scale of polymer additive manufacturing has been revolutionized with machines that print massive thermoplastic parts with greater geometric complexity than can be achieved by traditional manufacturing methods. However, the heat required to print thermoplastics consumes energy and induces thermal gradients that can reduce manufacturing flexibility and final mechanical properties. With the ability to be extruded at room temperature and excellent compatibility with fibers and fillers, thermoset resins show promise to decrease the energy consumption, expand the manufacturing flexibility, and broaden the material palette offered by large-scale polymer additive manufacturing. However, structural instability in the uncured …
Interfacial Bonding Between Thermoset And Thermoplastic Polyurethane Reinforced Textile Grade Carbon Fiber: Structure Property Relationships, Surbhi Subhash Kore
Interfacial Bonding Between Thermoset And Thermoplastic Polyurethane Reinforced Textile Grade Carbon Fiber: Structure Property Relationships, Surbhi Subhash Kore
Doctoral Dissertations
The research work focused on examining the interfacial adhesion of unsized, epoxy, and urethane-sized textile grade carbon fiber (TCF) reinforced in different classes of polyurethane (PU) thermoplastic (TPU) and thermoset (TSU) polyurethane (PU) through the structure-property relationship. The Carbon Fiber Technology Facility (CFTF) at Oak Ridge National Laboratory (ORNL) has produced TCF to reduce the cost of commercial-grade carbon fiber. The first part of the research examined the fundamental relationships between (a) soft segment thermoplastic polyurethane (S-TPU), (b) hard segment thermoplastic polyurethane (H-TPU), (c) thermoset polyurethane (TSU) and TCF reinforcement’s molecular behavior at the interface using the surface and thermal …
Methods For Characterizing Mechanical Properties Of Wood Cell Walls Via Nanoindentation, Yujie Meng
Methods For Characterizing Mechanical Properties Of Wood Cell Walls Via Nanoindentation, Yujie Meng
Masters Theses
Nanoindentation is a method of contacting a material whose mechanical properties are unknown with another material whose properties are known. Nanoindentation has the advantage of being able to probe a material’s microstructure while being sensitive enough to detect variations in mechanical properties. However, nanoindentation has some limitations as a testing technique due to the specific formation and structure of some biomaterials. The main objective of this research is to identify any factors that influence the nanoindentation measurement of wood cell walls (a typical biomaterial).
The function of the embedding media in describing the properties of wood cells is poorly understood. …