Essays about: "mjukgörare"

Showing result 6 - 10 of 13 essays containing the word mjukgörare.

1. 6. Formulation and Assessment of Hexamethylene-tetramine Filled Solid Fuel Grains

   University essay from KTH/Fiber- och polymerteknologi

   Author : Mårten Schollin; [2021]
   Keywords : Hybrid rocket; solid fuel grain; hexamine; pot-life; tensile properties; Hybridraket; fast raketbränsle; hexamin; härdningstid; dragegenskaper;

   Abstract : Hybridraketer har inte sett så mycket användning som dess motsvarigheter som använder flytande eller fasta drivmedel. De främsta orsakerna kan förklaras med att hybridraketer historiskt sett haft lägre regressionshastighet och bränsletäthet. Inverkan av nackdelarna har dock minskat tack vare fortsatt forskning rörande hybridraketer. READ MORE

3. 7. Analysis of market and requirements of plasticizers for flexible PVC - With a focus on Perstorp’s non-phthalate plasticizer Pevalen

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Lisa Bywall; Sofie Cederlund; [2020]
   Keywords : PVC; plasticizer; plasticiser; industry; flexible PVC; polyvinylchloride; vinyl; flooring; chemical engineering; kemiteknik; Chemistry;

   Abstract : Flexible Polyvinyl chloride (PVC) is a plastic material commonly used in today’s society and a fundamental material for a lot of sectors. It has advantages over other polymers such as energy-efficient production, flame retardancy, durability and cost-effective. READ MORE

4. 8. A first look at some potentially plastic degrading enzymes

   University essay from Lunds universitet/Kemiska institutionen

   Author : Björn Pålsson; [2019]
   Keywords : PETase; PET; plastic degrading; enzyme; biotic degradation; plastic degrading organisms; biochemistry; biokemi; Biology and Life Sciences; Chemistry;

   Abstract : The many advantageous abilities of plastics have made them omnipresent in today’s society. However, the low cost of production, light weight, durability and insolubility in water combined with inadequate waste handling have led to a vast and increasing accumulation of plastics in nature, approximated to be over 6 300 million tons (Geyer, Jambeck and Law, 2017, ‘Production, use, and fate of all plastics ever made’, Science Advances, 3(7), pp. READ MORE

5. 9. Evaluation of thermal and mechanical properties of the composite material of LignoBoost- lignin and recycled polyurethan : A preliminary feasibility study for a novel composite material from waste materials

   University essay from Karlstads universitet

   Author : Shaymaa Al-Taee; [2017]
   Keywords : ;

   Abstract : The purpose of this study was to investigate the possibility of producing a composite material of lignoBoost- lignin and recycled polyurethane. Also, the study evaluated the thermal and mechanical properties of the composite materials. READ MORE

6. 10. Phthalate metabolite concentrations in urine samples from Swedish pet dogs

   University essay from SLU/Dept. of Clinical Sciences

   Author : Ebba Pålsson; [2016]
   Keywords : phthalates; phthalate metabolites; dog; urine; reproductive toxicity; reproduction; pvc flooring;

   Abstract : Phthalates are chemicals used as plasticizers and can be found in a number of different consumer products. Phthalates may leak from these products into the environment, and hereby humans and animals may be exposed to phthalates through oral intake, dermal exposure and inhalation. READ MORE