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 15 of 15 for “"polyester resin"”.
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Toughening polyester resin by elastomeric coating on filler
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1980.
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The effects of fillers on the mechanical properties of polyester resin and a constrained optimization of filler content
… on the mechanical properties of a flexible polyester resin. Also, a method was demonstrated for a constrained optimization of the volumetric cost of the filled polyester. The fillers investigated included clay, marble, nut shell flour, and glass beads and microspheres. Mechanical property …
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Modelling environmental effects on fracture damage of natural fibre-reinforced polymer composites
… sodium hydroxide treated sisal fibre-reinforced polyester composite subjected to environmental ageing conditions has been studied with the aim of modelling its effect on the composite fracture damage for the purpose of long-term performance prediction. The composite was accelerated aged by …
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Modelling environmental effects on fracture damage of natural fibre-reinforced polymer composites
… sodium hydroxide treated sisal fibre-reinforced polyester composite subjected to environmental ageing conditions has been studied with the aim of modelling its effect on the composite fracture damage for the purpose of long-term performance prediction. The composite was accelerated aged by …
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Finite-element modeling of a composite bridge deck
… deck (Prodeck 8) made of E-glass fiber and Polyester resin. The bridge deck is subjected to a patch load at the center and the finite-element results obtained in the form of deflections, strains, and equivalent flexural rigidity are compared with experimental results. A good correlation is …
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Investigations of Press Bonded Zinc-Rich Powder Coatings
… ZRPCs were formulated by selecting a suitable polyester resin, determining the zinc content, additive dosages, etc., and applied as a single layer. An additional wetting agent further improved the surface quality. A double-layer system consisting of ZRPC as a basecoat and a polyester topcoat …
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Development and evaluation of fire retardent unsaturated polyester clay nanocomposites.
… (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 instead …
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Properties constrained cost optimization of polyester-filler systems with non-linear property-composition relationships
… the constrained optimization of components of a polyester resin-filler composite is formulated and quantitative relationships between the mechanical properties and composition are developed. The fillers examined were clay, marble, glass microballoons, saran microspheres, wollastonite and pecan …
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2 dimension woven kenaf reinforced unsaturated polyester composite
… 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 strength and …
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Compósitos poliméricos a base de fibras de licuri: efeitos da hibridização e do envelhecimento ambiental acelerado
… the form of plates using the tereftálica ortho-polyester resin as matrix. The composite laminate made only by licuri fiber had two reinforcing fabric layers of unidirectional licuri and the hybrid composite had two reinforcing layers of unidirectional licuri fabric and three layers of fiber …
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Electrical breakdown and structural characterization in synthetic resins using optical techniques
… project on electrical breakdown in synthetic resins, various non-evasive optical techniques were developed to quantitatively characterise resin microstructure and residual internal mechanical (RIMS) and to study the physical processes occurring during electrical tree initiation and tree growth …
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Speed and Temperature Effects in the Energy Absorption of Axially Crushed Composite Tubes
Tubes of glass reinforced thermosetting resins have been tested in axial compression between steel platens with one end chamfered to prevent critically high loads causing catastrophic centre failure. By testing in such a manner these tubes crush in a progressive and controlled manner, and are …
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Optimization of Pedicle Screw Depth in the Lumbar Spine: Biomechanical Characterization of Screw Stability and Pullout Strength
… imaged by computed tomography and potted in polyester resin to ensure rigid fixation. Pedicles were assigned to three experimental groups. Accordingly, screws were inserted to mid-body, pericortical and bicortical depths and underwent cyclic loading and pullout using a custom MTS Bionix …
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Vat Photopolymerization of High-Performance Materials through Investigation of Crosslinked Network Design and Light Scattering Modeling
The reliance on low-viscosity and photoactive resins limits the accessible properties for vat photopolymerization (VP) materials required for engineering applications. This has limited the adoption of VP for producing end-use parts, which typically require high MW polymers and/or more stable …
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Compósito reforçado com sisal para aplicação na moda
… a composite reinforced with dyed sisal fiber and polyester matrix for application in the fields such as, fashion, clothing, interior textiles; fashion accessories are some of the examples. For the fabrication of the composite, the sisal fibers were subjected to processes such as: chemical …