Sökning: "macro composite"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden macro composite.

  1. 1. Influence of Humidity Over the Properties of Wood Fiber-based Biocomposites

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Arvid Hedin; Anna Kudinova; Linnea Masso; [2022]
    Nyckelord :Wood Polymer Composite; WPC; Relative Humidity; RH; Tensile Testing; Polypropene; FibraQ; Wood Fiber; Surface Treatment; Mechanical Properties;

    Sammanfattning : The project aims to develop a methodology to study the variation in properties of wood polymer composites (WPC’s) with/without surface treatment at different humidity conditions. The project aims to investigate the behavior of biocomposites at 50%, 80%and 100% relative humidity (RH). LÄS MER

  3. 2. Macro composites for crushing - additive manufacturing of hard phase : Development and testing of macro composites for crushing purposes

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Maria Wojtowicz; [2021]
    Nyckelord :stone; rock; crushing; tribology; jaw crusher; selective laser melting; SLM; additive manufacturing; steel; macro composite; bronze;

    Sammanfattning : During this master thesis a crushing material composite was developed in order to determine if a specific design consisting of a pointy hard phase with a ductile phase in between can reduce the load needed to crush stone and therefor decrease the energy consumption during stone crushing. The steel hard phase (ASP 2012) was printed using an additive manufacturing method called selective laser melting (SLM). LÄS MER

  4. 3. Life cycle energy optimization as a tool to compare and evaluate the optimal design in the automotive industry

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Robert Jonsson; [2020]
    Nyckelord :Optimisation; Lightweight structures; Carbon Fibre; Composites; LCA; Life Cycle Energy; Optimering; Lättkonstruktioner; Kolfiber; Kompositer; LCA; Livscykelenergi;

    Sammanfattning : Fiber reinforced plastics are composite materials that offer a lower weight, while still mechanically perform at least as good as conventional materials such as steel. This makes them attractive for the automotive industry since the implementation of them in e.g. LÄS MER

  5. 4. Salmonellosis in Peruvian guinea pig production : a study to evaluate the prevalence of salmonella spp and importance of the disease

    Master-uppsats, SLU/Dept. of Clinical Sciences

    Författare :Ellen Pettersson; [2014]
    Nyckelord :salmonella; guinea pig; prevalence; marsvin; prevalens;

    Sammanfattning : In Peru guinea pigs are raised for meat production and salmonellosis is considered as a major problem. Studies have detected salmonella in animals with enteritis and pneumonia. Salmonellosis exists both in an acute and a chronic form. In the rural areas the diagnosis is made according to clinical signs and macro pathological findings at autopsy. LÄS MER

  7. 5. Modification of nanofibrillated cellulose with stimuli-responsive polymers

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Carmen Cobo Sanchez; [2012]
    Nyckelord :thermoresponsive; nanofibrillated cellulose; biocomposites; block-copolymer; stimuliresponsive;

    Sammanfattning : Research of new sustainable and low cost materials, such as cellulose, is of high interest. Modifications of the cellulose can be performed in order to create a “smart” material which responds to external stimuli, such as variations in pH and temperature, by changing its properties. LÄS MER