Sökning: "polymer degradation"
Visar resultat 1 - 5 av 48 uppsatser innehållade orden polymer degradation.
1. Tuning physical and chemical attributes of the synthetic implant poly(L-lactic acid) and its effects on biological stimulation
Kandidat-uppsats,Sammanfattning : Poly(lactic acid) (PLA) is a polymer chain consisting of repeating units of lactic acid (LA) used in various biomedical applications because of its biocompatible features. It is commonly used as a subdermal filler and constitutes as the main ingredient in SculptraR, which is a collagen regenerating filler used to treat lipoatrophy of the cheeks or to rejuvenate the skin. LÄS MER
2. Quality Assurance of Recycled HDPE in the Plastic Packaging Industry
Master-uppsats, Lunds universitet/InnovationSammanfattning : 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. LÄS MER
3. Investigation of acidic chemical recycling of poly(acetal-ester)s
Magister-uppsats, Lunds universitet/Centrum för analys och syntesSammanfattning : Plastic recycling is a very relevant topic from both environmental and economic viewpoints. Chemical plastic recycling is a logical solution to the plastic problems, which shows the potential to reduce plastic waste and carbon emissions from burning the plastics. LÄS MER
4. The effect of material properties on PEM fuel cell catalysts on durable oxidation reduction activity
Master-uppsats, KTH/KemiteknikSammanfattning : I detta examensarbete utforskas påverkan av partikelstorleken hos Pt-katalysatorer på kolbärare på syrereduktionen i polymerelektrolytmembran (PEM)-bränsleceller. Den elektrokemiskt aktiva ytarean, aktiviteten för syrereduktion och tillhörande degraderingshastigheter för de undersökta katalysatorerna beräknas och jämförs. LÄS MER
5. Quality Assurance of Recycled HDPE in the Plastic Packaging Industry
Master-uppsats, Lunds universitet/InnovationSammanfattning : 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. LÄS MER