Search for dissertations about: "halogen-free"

Showing result 1 - 5 of 9 swedish dissertations containing the word halogen-free.

  2. 1. Low smoke halogen-free materials for wire and cable applications

    Author : Anna Lundgren; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flame retardant; calcium carbonate; calcium silicate; Casico; polyolefin; effervescence; intumescent structure; thermal degradation; silicone elastomer;

    Abstract : Fire safety issues are becoming increasingly important in modern society and cables are one potential fire risk since they can start a fire and/or spread one. Traditionally, materials containing halogen have been used as primary insulation in low voltage power and telecommunication cables and most cables used today therefore contain halogen. READ MORE

  4. 2. Combustion dynamics and melt dripping of ethylene-acrylate copolyer composites

    Author : Roland H. Krämer; Ulf W. Gedde; Mats Jonsson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; methacrylic acid; ethylene; calcium carbonate; ionomer; nanoparticles; intumescence; halogen-free; flame retardant; melt dripping; Polymer chemistry; Polymerkemi;

    Abstract : The degradation and combustion of blends of ethylene-acryalte copolymer with calcium carbonate and silicone were studied by a combination of flammability tests, in-situ measurements and analytical experiments. Compounds of poly(ethylene-co-methacrylic acid) blended with precipitated calcium carbonate nanoparticles were prepared. READ MORE

  5. 3. Improved Flame Retardant Properties of a Halogen-Free Material for Cable Applications

    Author : Linus Karlsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flame Retardant; Melt Viscosity; Silicone Elastomer; Ethylene-Acrylate Copolymer; Calcium Carbonate;

    Abstract : Due to the large amount of electric equipment in our surroundings, fire safety of cable materials is becoming increasingly important. Because of environmental and health issues, much focus is on development of halogen-free materials. In this thesis, a halogen-free flame retardant material named Casico™ is studied. READ MORE

  6. 4. Mechanism of a polyolefin based effervescent flame retardant material

    Author : Anna Lundgren; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; intumescent structure; flame retardant; Casico; silicone elastomer; polyolefin; effervescence; calcium carbonate;

    Abstract : ABSTRACTFire safety issues are becoming increasingly important in modern society and cables are one potential fire risk since they can start and/or spread a fire. As a result of environmental and safety issues having to do with flame retardants based on halogens, much attention has lately been given to finding halogen free alternatives. READ MORE

  7. 5. Orthoborate Ionic Liquids for Lubricated Interfaces

    Author : Mamoun Taher; Robin D. Rogers; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Abstract : The lifespan and efficiency of various types of machinery is often limited by the performance of its lubricated interfaces, which are formed by two interacting surfaces and a lubricant that separates the surfaces to decrease friction and wear. There is a constant quest for more efficient lubricants capable of lubricating non-ferrous surfaces. READ MORE