Search for dissertations about: "physical modification"

Showing result 1 - 5 of 260 swedish dissertations containing the words physical modification.

  2. 1. Covalent Graphene Functionalization for the Modification of Its Physical Properties

    Author : Hu Li; Klaus Leifer; Annick Loiseau; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; graphene; functionalization; nanomechanical property; graphene nanoscroll;

    Abstract : Graphene, a two dimensional monolayer carbon sheet with the atoms tightly packed in a hexagonal lattice, has exhibited so many excellent properties, which enable graphene to break several material records with regard to carrier mobility, strength yield and thermal conductivity to name a few. Therefore, graphene has been placed as a potential candidate to allow truly next-generation material. READ MORE

  4. 2. Surface Modification of Cellulose by Covalent Grafting and Physical Adsorption

    Author : Linn Carlsson; Anna Carlmark; Eva Malmström; M. Naceur Belgacem; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Surface modification; cellulose; covalent modification; physical adsorption; polymer synthesis;

    Abstract : The interest in new environmentally friendly cellulose‐based productshas increased tremendously over the last years. At the same time theSwedish forest industry faces new challenges in its strive to increase the utilization of cellulose fibers in high‐value end‐products. READ MORE

  5. 3. On Particle Transport and Turbulence Modification in Air-Particle Flows

    Author : Camilla Ljus; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; turbulent dispersion; hot film probe; turbulence measurements; turbulence modification; particle transport; two-fluid model;

    Abstract : The transport of particles by airflow was studied for two different flow cases, the transport of pulp fibres in a mat-forming process and the transport of pulp fibres and spherical particles in a horizontal pipe. The transport of pulp fibres in the mat-forming process is first considered. READ MORE

  6. 4. Surface modification of III-V nanostructures studied by low-temperature scanning tunneling microscopy

    Author : Yi Liu; NanoLund: Centre for Nanoscience; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; STM; XPS; semiconductor surface; III-V; nanostructure modification; nanowires; self-selective formation; atomic scale imaging; Bi incorporation; Fysicumarkivet A:2022:Liu;

    Abstract : In the past decade, driven by the demand for materials with high performance for next-generation semiconductor devices (e.g. READ MORE

  7. 5. The dynamic surface nature of calcite and its role in determining the adsorptive stability toward hydrophobizing carboxylic fatty acids

    Author : Natalia Wojas; Per M. Claesson; Agne Swerin; Jan van Stam; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; calcite; recrystallization; surface modification; fatty acids; wear resistance; water resistance; contact angle hysteresis; AFM; XPS; VSFS; Kalcit; rekristallisation; ytmodifiering; fettsyra; nötningsbeständighet; vattenbeständighet; kontaktvinkelhysteres; Physical Chemistry; Fysikalisk kemi; Natural Sciences; Naturvetenskap; Chemical Sciences; Kemi; Tribology Interacting Surfaces including Friction; Lubrication and Wear ; Tribologi ytteknik omfattande friktion; nötning och smörjning ; Kemi;

    Abstract : Calcium carbonate has attracted a lot of interest over the centuries. Nowadays, mainly as mineral pigment and filler, it has a wide use in technological applications ranging from paper, construction, polymers, and environmental solutions to consumer goods. READ MORE