Essays about: "Low density Polyethylene LDPE"

Showing result 11 - 15 of 20 essays containing the words Low density Polyethylene LDPE.

1. 11. Study of Numerical Model Parameters and Crack Tip of a Packaging Materials

   University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

   Author : Venkata Seshank Kodavati; Devi Prasad Buraga; [2017]
   Keywords : ABAQUS; Low-Density Polyethylene LDPE ; MATLAB; Optimization; Parametric Study;

   Abstract : Packaging industries widely use Low-Density Polyethylene (LDPE) in manufacturing different types of containers to store the food products. They are difficult to model numerically in order to have similar experimental response. This research deals with the study of numerical material model parameters of continuum LDPE. READ MORE

3. 12. Enhanced dielectric AC breakdown strength of polyethylene using voltage stabilizing additives

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Klas Esbo; [2016]
   Keywords : cross-linked polyethylene; LDPE; low density polyethylene; polyethylene; voltage stabilizing additives; fast avalanche breakdown; dielectrical breakdown strength; High voltage cable; HVAC; XLPE; Weibull distribution; AC breakdown; materials chemistry; materialkemi; Technology and Engineering; Chemistry;

   Abstract : There is currently a need to increase the voltage level in high voltage transmission and distribution systems in order to transmit power in a more efficient way. However, the insulation of the conductor in high voltage alternating current (HVAC) cables needs to be improved in order to withstand these high voltages. READ MORE

4. 13. The Influence of Carboxylic Acid in Packaging Materials

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Jonas Mattisson; [2016]
   Keywords : food packing; Packaging Material; Carboxylic Acid; delamination; adhesion; polymer technology; polymerteknologi; Technology and Engineering;

   Abstract : Tetra Pak delivers food packing services world-wide and uses multilayer packaging materials to protect the food product from being affected by the environment. Loss of adhesion between the polymer and the aluminium layer in Tetra Paks packaging materials has proven to be a serious problem casing the package to lose its integrity and the food product to spoil. READ MORE

5. 14. Investigation of the dielectric breakdown strength of polymer nanocomposites

   University essay from Uppsala universitet/Tillämpad materialvetenskap

   Author : Mattias Karlsson; [2014]
   Keywords : breakdown; polyethylene;

   Abstract : 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. READ MORE

6. 15. Fracture Mechanical Trouser Taer Testing of thin polymer films

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Nasir Mehmood; Tan Mao; Gaurav Bhupati; [2012]
   Keywords : Key Words: PP; Mode I ; Mode III; Tensile test; ABAQUS simulation; Crack shapes; Tearing behavior; EWF; Polarized light; SEM microscope.;

   Abstract : 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. READ MORE