Sökning: "Low density Polyethylene LDPE"
Visar resultat 16 - 20 av 22 uppsatser innehållade orden Low density Polyethylene LDPE.
16. Investigation of the dielectric breakdown strength of polymer nanocomposites
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskapSammanfattning : The aim of this thesis is to investigate the possibility of enhancing the dielectric breakdown strength (DBS) of low density polyethylene (LDPE) with addition of voltage stabilizing additives. In the first part of the thesis, the influence of various process parameters on the alternating current DBS of pure LDPE and LDPE containing either 3 or 30 wt% magnesium oxide nanoparticles was investigated. LÄS MER
17. Fracture Mechanical Trouser Taer Testing of thin polymer films
Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapSammanfattning : Tensile and Trouser tear tests of thin packaging polymer films have been done successfully in this research thesis. Two different polymers (PP and LDPE) are used. Mode I and Mode III fracture tests have been used for crack propagation analysis. Several experiments are performed to calculate the material parameters. LÄS MER
18. Fracture Mechanics Applied in Thin Ductile Packaging Materials-Experiments with Simulations
Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapSammanfattning : Finding new or improving existing opening solutions for a package are important at Tetra Pak since the development of new polymers films influence the present package opening solutions. Knowing the general mechanical and fractural behavior of the package material is crucial for the understanding and prediction of the overall opening performance. LÄS MER
19. ACOUSTIC MEASUREMENTS OF THE SLOW DYNAMICS OF THIN SHEETS.
Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapSammanfattning : Based on the relationship between resonance and tension on thin sheets, an experimental approach was adopted to test the slow dynamic behaviour of Paper, Low Density Polyethylene (LDPE), the laminate of both and same laminate with Aluminium inclusive. We used a non contact acoustic excitation and non contact laser sensing. LÄS MER
20. Influence of hole geometry on coating quality
Master-uppsats, Lunds universitet/FörpackningslogistikSammanfattning : This diploma work is a result of a co-operation between the Faculty of Engineering, Lund University (LTH) and the department of Material Treatment, Tetra Pak Packaging Solutions AB in Lund, Sweden. The production and tests were done at Tetra Pak Limburg respectively Lund, Autumn 2007. LÄS MER