Essays about: "Glass transition temperature"

Showing result 16 - 20 of 25 essays containing the words Glass transition temperature.

  1. 16. Polymeric single Li+-ion conductors: preparation and characterisation

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Hannes Nederstedt; [2016]
    Keywords : single ion conductors; electrolytes; polymers; lithium ion batteries; polymer technology; polymerteknologi; Chemistry; Technology and Engineering;

    Abstract : Lithium-ion batteries are a common type of light-weight, rechargeable batteries. There are safety concerns because these batteries typically use an organic solvent electrolyte which presents fire hazards. By using dry polymer electrolytes, the fire hazards can be eliminated. READ MORE

  3. 17. Thermo-Oxidative Degradation of High Temperature Polyimide Composites : Characterization and Modeling of Composites Affected by an Extreme Environment

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Magnus Persson; [2016]
    Keywords : Polyimide composite material; thermal and oxidative degradation; glass transition temperature; stiffness modeling;

    Abstract : Carbon fiber (CF) 8-harness satin weave, T650/Neximid system of [(+45/-45)/(0/90)]2S and [(0/90)]4S layup was manufactured using resin transfer molding (RTM). The material was cut into 3-point bending specimens and treated for 24 hours in a burn oven at T=(320,350,375,400,450 & 500)°C. READ MORE

  4. 18. Starch and Hemicellulose as Barrier Materials in Food Packaging : - A study of the materials permeability and structure with polyvinyl alcohol as a reference

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Elin Andersson; [2015]
    Keywords : ;

    Abstract : To prevent permeation through food packages, the packaging are often combined with barrier coatings. Many of these coatings are petroleum based and wished to be replaced with renewable materials. READ MORE

  5. 19. Lactose crystallization in drum dried, freeze dried and spray dried skim milk powders

    University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

    Author : Annette Bick; [2015]
    Keywords : lactose crystallization; skim milk powder; glass transition; Technology and Engineering;

    Abstract : Crystallization of amorphous lactose during storage at high relative humidity and high temperatures has been found to impair the quality of skim milk powders. This is related to the glass transition of lactose. READ MORE

  6. 20. Effect of raw material and Kraft Pulping Conditions on Characteristics of Dissolved Lignin

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Antonia Svärd; [2014]
    Keywords : Kraft pulping; softwood; eucalyptus; lignin; characterization;

    Abstract : Lignin is one of the main components in wood and during the chemical pulping processes it is degraded and dissolved into the cooking liquor. The current challenge is to meet the need for energy and raw materials, and reform to a more environmentally sustainable society, so there is a great interest in using kraft lignin as a raw material for energy, materials and as source of chemicals. READ MORE