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Purpose: The aim of the work was roughness investigation of the surface of developed oesophageal prosthesis before and after texturing, to estimate its influence on future application of prosthesis. Design/methodology/approach: Linear, mechanical contact-measurement method and, for verification, optical profile measurement in confocal microscope were used in the work. Findings: The roughness investigation...
Purpose: Evaluation of mechanical properties of fluoride-based experimental composite material. Design/methodology/approach: Flexural strength of experimental light-curing composite material (ECM) modified with the addition of calcium fluoride was tested. The composite material was modified with 0.5–5.0 wt% anhydrous calcium fluoride. Mechanical properties were tested after 24-hour storage of specimens...
Purpose: The main aim of the work is investigation of abrasive wear resistance of evaluated oesophageal prosthesis internal layer, considering its long-term exploitation possibility and extreme option of food consumed by patient after implementation. Design/methodology/approach: In the work, methodology of wear abrasive investigations of oesophageal prosthesis, made of long-fibre composite material...
Polymer degradation is a change in the properties of a polymer under the influence of one or more environmental factors such as heat, light, humidity or chemicals. These changes may be undesirable, such as changes during use, or desirable, as in biodegradation or deliberately lowering the molecular weight of a polymer. A series of composites of isotactic polypropylene (iPP) has been obtained by the...
Purpose: The aim of this work is to study of constructional model of internal prosthesis of oesophagus with determined functional features; the prosthesis will replace the upper part of the digestive system – the oesophagus. Design/methodology/approach: Constructional model of internal prosthesis of oesophagus was worked out in the basis of physiological build of oesophagus considering surgical techniques...
Purpose: Development of the manufacturing technology of aramid-silicon laminated material. Design/methodology/approach: Aramid-silicon laminated material was made by method of manual formation of laminates, that is impregnation of reinforcement with matrix, to hardening silicone process using hardening methods connect with hot. Created material was being observed by using MEF4A light-microscope of...
Purpose: The goal of this project is the optimization of manufacturing technology of the ceramic preforms based on Al2O3 powder manufactured by the pressure infiltration method with liquid metal alloy. Design/methodology/approach: Ceramic preforms were manufactured by the method of sintering of ceramic powder. The preform material consists of powder Condea Al2O3 CL 2500, however, as the forming factor...
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