Essays about: "chloride migration"

Found 4 essays containing the words chloride migration.

  1. 1. Bacteria - based self - healing mortar with bio - plastic healing agents : Comparative analysis on quantification and characterization of self-healing by various experimental techniques

    University essay from KTH/Betongbyggnad

    Author : Rahul Roy; [2020]
    Keywords : Mortar; crack; autonomous healing; bacteria; bioplastic; lactic acid derivatives PLA ; alkanoate derivatives AKD ; internal crack geometry; quantification; characterization; statistical analysis; Bruk; sprickbildning; självläkning; bakteriebaserademedel; bioplast; mjölksyrederivat PLA ; alkanoatderivat AKD ; inre sprickbildning; kvantifiering; karakterisering; statistisk analys;

    Abstract : Crack formation in concrete structures due to various load and non-load factors leading to degradation of service life is very common. Repair and maintenance operations are, therefore, necessary to prevent cracks propagating and reducing the service life of the structures. READ MORE

  3. 2. 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. 3. Quantum chemical studies of the chloride-based CVD process for Silicon Carbide

    University essay from Institutionen för fysik, kemi och biologi; Tekniska högskolan

    Author : Emil Kalered; [2012]
    Keywords : silicon; carbide; CVD; chloride; surface; chemistry; quantum; adsorption; transition; band gap; Emil; Kalered;

    Abstract : In this report the interaction between SiH2 molecules and a SiC-4H (0001) surface and SiCl2 molecules and a SiC-4H (0001) surface is investigated. This is done using a cluster model to represent the surface. First the clusters are investigated by calculating some properties to compare with experimental data to motivate the use of the cluster model. READ MORE

  5. 4. Migration of plasticisers from PVC

    University essay from Högskolan i Borås/Institutionen Textilhögskolan

    Author : Johanna Augustsson; Ulrika Henningsson; [2011]
    Keywords : migration; PVC; cracks; plasticiser;

    Abstract : A common problem whit Polyvinyl chloride (PVC) is that plasticisers tend to migrate during use. When the plasticisers migrate the material gets stiffer, this can for example cause cracks in the PVC material. Some PVC tends to crack more easily than other; finding out what is causing this problem would bring answers to a number of questions. READ MORE