Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Unsaturated Polyester"”.
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2 dimension woven kenaf reinforced unsaturated polyester composite
… fabricated using floor loom and infused with unsaturated polyester resin using vacuum infusion process. The mechanical properties of the composites were measured and showed that satin 8/3 has highest tensile strength of 39MPa and Plain has highest tensile modulus of 2.63GPa, with flexural …
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Development and evaluation of fire retardent unsaturated polyester clay nanocomposites.
… micro size (fibrous) reinforcements within an unsaturated polyester matrix. A new fire retardant unsaturated polyester resin system capable of UL94 classification VO was developed. The novel approach used to achieve this innovative class of material did not include halogenated compounds, but …
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Mechanical Performance of Industrial Hemp Fibre Reinforced Polylactide and Unsaturated Polyester Composites
… hemp fibre reinforced polylactide (PLA) and unsaturated polyester (UPE) composites. Surface treatment of hemp fibres was investigated as a means of improving the fibre/matrix interfacial strength and mechanical properties of hemp fibre reinforced PLA and UPE composites. The fibres were …
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Low Cost Manufacturing and Performance Evaluation of Soy-based Polyurethane/E-glass Composites
… thermoset resins in such applications are unsaturated polyester and vinyl ester, which contain styrene. Recently, the Environmental Protection Agency has applied stringent regulations on releasing of styrene (considered a volatile organic compound-VOC) for open-molding composite processes …
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Electrical breakdown and structural characterization in synthetic resins using optical techniques
… content (MC) of the Epoxy (CT200) and unsaturated polyester rains, and in conjunction with FTIR spectroscopy, the polyester resin cure reaction kinetics have been established. Polarisation microscopy with the aid of an interpretive fictive force model have enabled the RIMS to be …
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Designing Multiphase Step-Growth Polymers for Advanced Technologies: From Electromechanical Transducers to Additive Manufacturing
… AM served as a technique to 3D printed novel unsaturated polyester resins (UPR). Incorporating a phosphonium ionic liquid as a reactive diluent replaced styrene and reduced the volatility of commonly used UPRs. VP successfully provided 3D structures from these UPRs that demonstrated limited …
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Reactive modification of polyesters and their blends
… to investigate the chemical modification of polyesters by reactive processing a low molecular weight (MW) unsaturated polyester (UP) and a higher MW saturated polyester, polyethylene terephthalate (PET), alone or blended with polypropylene (PP) were melt processed in a batch mixer and …
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Analyses Of Pultruded Polyester/ E-Glass Composites Subjected To Environmental Degradation
This paper evaluates the response of experimental mold releases for a pultruded glass fiber reinforced polymer (gfrp). The initial assessment criteria include comparisons between pull forces and surface appearances for each mold release. Composites fabricated using experimental mold releases that …
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Thermo-analytical and physico-chemical characterisation of organoclays and polymer-clay nacomposites.
… of a homologous series of saturated and unsaturated hydrocarbons, also, the dehydrocyclisation (DHC) of fragmented alkyl chains was shown to lead to the production of various ring compounds which included substituted cycloalkenes, benzene and toluene.The thermal stability of various …