The use of interleaved polyethylene terephthalate (PET) veils to increase the interlaminar fracture toughness of glass fiber-reinforced, low-styrene emission, unsaturated polyester resin composites, was investigated. PET, being chemically similar to the unsaturated polyester resin, was expected to exhibit good wetting and strong interaction with the matrix. Composite laminates were manufactured by hand lay-up, with the veil content varying up to 7%. The effects of PET veils on the interlaminar shear strength, flexural strength, flexural modulus, glass transition temperature, damping parameters, and Mode-I interlaminar fracture toughness of the composite were studied. The veils were found to enhance most of these properties, with only minor negative effects on flexural stiffness and T g . The PET/resin bonding did indeed prove to be strong, but the enhancement of fracture toughness was not as much as expected, because of the weaker glass/resin interface providing an alternative crack propagation path.
Abstract:The current project aims to identify and explore concepts of power from an Indigenous understanding. The topic of power is informed by vast literature that reaches back into the beginnings of western philosophy. The conceptions that result are based on a western worldview that does not incorporate cultural differences. An Indigenous theory of power can be used to inform strategies toward achieving a more equal distribution of power, and encourage successful Indigenous-settler reconciliation. Within the academic setting, Indigenous scholars are developing Indigenous research initiatives aimed at decolonizing methodologies and achieving intellectual self-determination (Smith, 2012, p.120). Utilizing a decolonization framework saturated with reflexivity, Indigenous research methods in conversation with grounded theory will be applied to identify an Indigenous worldview of power. Researcher reflexivity, relationships with community and research-based support systems are requisite to a decolonization research framework (Smith, 1999, p.138). Data collection will occur at M'Chigeeng First Nation and the Chief of that community has been recruited as community partner to this project. Together we aim to answer Indigenous questions to improve Indigenous lives with research based on standards for how we should structure our relationships with each other and with all of creation (Wilson, 2001, p.177). Indigenous research methods combined grounded theory allows the project to bridge worldviews, while allowing for relationships to guide the process. A literature analysis, interviews, sharing circles and review of historical records will be used.
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