A content analysis of web-based reporting of corporate social responsibility in selected transport sector state owned entities
- Authors: Khomari, Jane
- Date: 2018
- Subjects: Social responsibility of business -- South Africa , Business ethics Business communication
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/31262 , vital:31349
- Description: Organisations today are experiencing immense pressure to act responsibly, both socially and ethically. Stakeholders expect organisations to operate with integrity, whilst still being profitable. This pressure is due to Corporate Social Responsibility (CSR) becoming increasingly a mark of good governance. Corporate performance is no longer measured by only financial statements, but CSR is deemed a corporate imperative for financial performance. This non-financial reporting has forced organisations to take cognisance of environmental, social and governance reporting, a process called Integrated Reporting. The purpose of this research was to explore website reporting of State Owned Enterprises (SOEs) in the transport sector. The study explored the phenomenon through six questions: What are the titles used to communicate CSR on SOE websites? What are the CSR activities communicated on SOE websites? What are the similarities and differences of the CSR initiatives communicated on the websites? Who are the stakeholders reached through CSR? What are the reporting practices on the SOE website? What are the similarities and differences of the reporting practices on the SOE websites. This research study was carried out in two stages. The first phase was to examine the corporate websites of the SOEs. The second phase was to use the data collected from the websites to understand CSR representation in SOEs. The purpose is to explore the communication of CSR on the various websites of the SOEs. A key finding of the research is that SOEs use different strategies to communicate CSR on their websites. SOEs communicate CSR activities using multiple titles and use various media on their websites. Additionally, there are variances with the framing of information on the websites. The varying communication strategies indicate the multiple stakeholders targeted by the different CSR focus areas. The research concluded that the different titles made it difficult for stakeholders to access information on the websites. Standardisation of CSR terms and consistency of reporting would make it easier for readers to access information. Further research is recommended in the adoption of strategic communication models by SOEs, as this will assist in the framing of websites.
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- Date Issued: 2018
Reducing the brittleness of poly-furfuryl alcohol resin used in composites
- Authors: Pillay, Princeton
- Date: 2018
- Subjects: Textile chemistry , Textile chemicals
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/34350 , vital:33339
- Description: The thermoset market is dominated with petroleum-based products. The rising concerns on depletion of non-renewable resources and climate change has motivated researches and industries to find green alternatives for petroleum based materials. The thermoset polymer poly-furfuryl alcohol (PFA) displays good chemical, viscoelastic and moisture stability properties and importantly is bio-based, however, the cured PFA resin is very brittle. The approach of incorporating different types of particulate fillers into the PFA matrix and reinforcing the PFA matrix with flax fabric was used to address the brittleness issue associated with PFA. In the first study, flax fabric was treated with a diammonium phosphate based flame-retardant to reduce the flammability. Compression moulding was used to produce PFA biocomposites and PFA laminates. The effect of the flame-retardant was investigated using Scanning electron microscope (SEM), x-ray diffraction (XRD), fourier transform infrared (FTIR), and cone calorimeter, flexural and tensile tests. The flame-retardant treatment significantly improved the flammability properties, however, decreased the flexural and tensile properties. In the second study, 10 different fillers were selected, these being; ZnO, Clay, montmorillonite (MMT), Rubber, Chitin, Starch, CaCO3, Chitosan, Lignin and TiO2. These fillers were incorporated into the PFA resin at 2% and 5% concentration and reinforced with untreated (UT) flax fabric and flame-retardant (FR) treated flax fabric. Flexural, tensile and izod impact tests were performed on the cured laminates. Thermogravimetric analysis (TGA), SEM and micro x-ray computed tomography scan (CT scan) analysis was performed on selected samples. The inclusion of MMT and Rubber significantly increased the strength and the stiffness of the PFA/UT-Flax laminate while Clay and ZnO reduced the brittleness of the PFA/UT-Flax laminate. FR laminates generally exhibited poor mechanical properties regardless of the type of filler. This was the result of FR damaging the flax fibres during the compression moulding process and hindered the interaction between the PFA matrix and flax fabric. TGA results showed that FR treatment increased the thermal stability of the PFA laminate. SEM and CT scan analysis illustrated the large amount of voids between fabric layers, especially for UT-Flax laminates. The fillers MMT, Rubber and ZnO had a positive effect on the mechanical properties of UT-Flax laminates and therefore were used in the third study. A Box Behnken design of experiment was developed in which the concentration of MMT, Rubber and ZnO was varied between 0 – 5%. Multiple linear regression was used to model the mechanical properties of the PFA/UT-Flax laminates based on a full quadratic model. An optimized filler combination was determined with Solver ®. The experimental results of the optimised PFA/UT-Flax laminate were compared to the values predicted with the statistical model.
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- Date Issued: 2018