Effect of Selected Injection Conditions on the Mechanical Properties and Structure of HDPE
Journal Title: Fibres and Textiles in Eastern Europe - Year 2018, Vol 26, Issue 5
Abstract
This paper is devoted to research of high-density polyethylene (HDPE), which belongs to one of three main biomaterial groups, i.e. polymeric materials. Hence, due to its unique properties, it still plays an important role in biomedical applications – especially in the production of medical equipment, implants and parts of prostheses. This publication deals with the effect of selected conditions of processing which involved injection moulding on the mechanical properties and structure of HDPE mouldings. Samples for tests were produced on a Krauss Maffei injection moulder on the basis of a research plan prepared using the STATISTICA program. According to this schedule, the following variable parameters of the injection process were selected: injection temperature Tw [C], mould temperature Tf [C] and injection velocity vw [mm/s]. In addition, a part of the moldings was subjected to a few processings. Then the samples obtained were subjected to different tests: tensile, impact and hardness tests, Differential Scanning Calorimetry (DSC) and the melt flow rate (MFR) test in order to determine the influence of selected injection conditions and the multiplicity of processing on the mechanical, rheological and structural properties of HDPE.<br/><br/>
Authors and Affiliations
Katarzyna Mordal, Karol Dobrakowski, Dariusz Kwiatkowski
Evaluation of Cotton Fibre Properties in Compact Yarn Spinning Processes and Investigation of Fibre and Yarn Properties
Fibre properties are influential factors for yarn properties. Cotton, whose physical properties vary depending on the cultivation region, is still a very common fibre used in the textile industry. Properties such as fibr...
Badania porównawcze właściwości przędz Vortex i obrączkowych oraz właściwości tkanin zawierających te przędze w wątku
Wybrano dwie różne mieszanki włókien (bawełna PET i PA6.6) w różnych proporcjach, jak również jednorodne włókna celulozowe typu Modal. Wyprodukowano przędze Vortex i obrączkowe o masie liniowej 16 tex i 67 tex. Badania w...
Zastosowanie analizy obrazu do automatycznej oceny gęstości tkanin o dużej zwartości
Dla zrealizowania pomiarów gęstości tkanin o dużej zwartości opracowano metodę oceny opartą o zależności strukturalne. Zależności strukturalne typowych tkanin HTWF, o splocie skośnymi i satynowym analizowano i opracowano...
Solvent Vapour-Sensitive Activated Carbon Submicrofibres Based on Electrospun Polyacrylonitrile Fibre Mat
Precursor polyacrylonitrile submicrofibres with a diameter of about 900 nm, electrospun from polyacrylonitrile/dimethyl sulfoxide (PAN/DMSO) solution, were carbonised and chemically activated. These submicrofibres, chara...
Investigation of the Electromagnetic Shielding Effectiveness of Needle Punched Nonwoven Fabrics Produced from Stainless Steel and Carbon Fibres
aaa