Essays about: "Polymer Material"

Showing result 6 - 10 of 275 essays containing the words Polymer Material.

1. 6. Qualitative Analysis of Chlorinated Paraffins in Recycled Plastics

   University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

   Author : Solal GAUDIN; [2023]
   Keywords : Short chain Chlorinated Paraffins SCCP Medium chain Chlorinated Paraffins MCCP Long chain Chlorinated Paraffins LCCP Recycled plastics Qualitative analysis Bioaccumulation Long range transport Gas Chromatography – Mass spectrometry;

   Abstract : Described in many studies as dangerous for the environment and potentially carcinogenic for humans, Chlorinated Paraffins (CPs) are easily widespread due to their substantial production and use in different products. Previous studies reported the presence of CPs in different plastic polymers. READ MORE

3. 7. Permanent Fire Load of the Building Envelope

   University essay from Lunds universitet/Avdelningen för Brandteknik

   Author : Gizelle Danine Pondevida Jamero; [2023]
   Keywords : Permanent fire load; temporary fire load; fire load; building envelope; insulation; building content; upholstered furniture; heat of combustion; MCC; bomb calorimeter; cone calorimeter; room corner test.; Technology and Engineering;

   Abstract : Fire load, the total thermal energy released by the combustion of a material, is an essential part of determining a building’s fire performance and the associated fire protection strategies. Elements in a structure are typically categorized into two types of fire loads: permanent and temporary. READ MORE

4. 8. Quality Assurance of Recycled HDPE in the Plastic Packaging Industry

   University essay from Lunds universitet/Innovation

   Author : Tora Abrahamsson; Juliana Kalling; [2023]
   Keywords : Thermoforming; Plastics; Recycling; Packaging Industry; HDPE; Technology and Engineering;

   Abstract : The recycling of plastic has the potential to support circular material use, thus decreasing the need for virgin plastics. However, there is an existing issue with assuring quality of recycled plastic materials, causing finished products to perform with poorer properties and unexpected deviations. READ MORE

5. 9. Investigation of Milled Wood Lignin Extraction Using Enzymatic Hydrolysis for Application in Hydrophobic Barriers in the Food Packaging Industry

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Anna Wagne; [2023]
   Keywords : Lignin; extraction; hydrophobicity; chemical engineering; Technology and Engineering;

   Abstract : The objective of this report is twofold: to optimise the extraction method of lignin from spruce altering a few process parameters and to investigate the use of lignin as a hydrophobic barrier in food applications. The process used was STEX (steam explosion) pretreatment followed by enzymatic hydrolysis and MWL (milled wood lignin) extraction using a mixture of dioxane-water. READ MORE

6. 10. Reprocessing and Characterization of Polybenzimidazole for High-Temperature Polymer Electrolyte Membrane Fuel Cells

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Douglas Björkengren; [2023]
   Keywords : polymer electrolyte membrane fuel cells; PEMFC; HTPEMFC; polymer technology; polymer characterization; reprocessing; recycling; polybenzimidazole; PBI; Technology and Engineering;

   Abstract : A reprocessing method of poly(2,2’-(m-phenylene)-5,5’-bibenzimidazole) (PBI) membranes recovered from the production line of High-Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) at Blue World Technologies (BWT) has been developed in order to reduce material loss in the production. Redissolution of scrap PBI membranes in poly(phosphoric acid) (PPA) and phosphoric acid (PA) was successful and the subsequent washing procedure produced PBI that could be redissolved in N,N-dimethyl acetamide (DMAc) and suitable for solution casting of new membranes. READ MORE