| Abstract [eng] |
We come into contact with composite materials every day, even though we may not realise it, so this paper gives a brief introduction to what a composite is and what its properties are. Plant fibres used as reinforcement material and hemp fibre used in this work are also discussed, as well as an overview of the polymers used to form the matrix. In addition, the theoretical part discusses the five most popular composite manufacturing techniques used in various industries. The production and research methodology section presents the raw materials obtained as waste from various manufacturing companies. Here they are prepared for further use and composite material components are produced. The composite manufacturing process is then described in a step-by-step manner, as well as the tensile and combustion tests carried out on the four produced composites. The first tensile test evaluates the effect on the strength of the product of the different positions of the hemp fibres in the specimens: longitudinal, transverse and 45° orientations are compared with each other. Composite materials with the same matrices but different reinforcing fibres are further analysed. To assess this, tensile tests have been carried out on blank sheets of polymer matrices, which are compared with the tensile tests carried out on the above-mentioned polymer and hemp fibre composites. Finally, a socio-economic evaluation of the products was carried out. This includes the calculation of the cost of production of the composite materials and a SWOT analysis which assesses the strengths, weaknesses, opportunities and threats of the composite material. |
