Sökning: "cellulose nanofiber"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden cellulose nanofiber.

  1. 1. 3D Printing Hydrogel Artificial Muscles and Microrobotics

    Kandidat-uppsats, KTH/Kemiteknik

    Författare :Malin Alterby; Emily Johnson; Anton Jonason; Denize Svensson; [2023]
    Nyckelord :3D printing; MXene; CNT; CNF; hydrogel; actuator;

    Sammanfattning : The purpose of this lab was to investigate the printability of cellulose nanofiber/carbon nanotubes, their functions as actuators, and to compare these properties with MXene/nano cellulose gels. Data on MXene/nano cellulose gel was obtained from previous research made by Hamedi labs. LÄS MER

  3. 2. Optical Studies of Cellulose-Based Materials for Spectral Design of Camouflage and Passive Cooling Applications

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Olivia Grönlund Falk; Felix Valentin; [2022]
    Nyckelord :Nanocellulose; optical properties; spectroscopy; ellipsometry; BRDF measurements; optical microscopy; reflectance; transmittance; absorptance; transflectance; spectral design; camouflage; passive radiative cooling;

    Sammanfattning : In the past few years, studies regarding new bio-based materials have led to an increased attention in the nanoscale product of cellulose, called nanocellulose. This biodegradable and renewable material has interesting physical, optical and thermal properties. LÄS MER

  4. 3. Evaluation of electrospun lignin/polyvinyl alcohol/cellulose nanofiber mats

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Lisa Johansson Carne; [2021]
    Nyckelord :Electrospinning; lignin; polyvinyl alcohol; cellulose nanofiber; wound dressing;

    Sammanfattning : Polymeric electrospun nanofiber mats have recently emerged as a promising alternative to conventional wound dressings for non-healing wounds. Its large surface area, porosity and scalability are only a few of the promising characteristics of electrospun nanofibers. LÄS MER

  5. 4. Biobased carbon aerogels incorporated with zeolite nanoplates for carbon dioxide adsorption

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Maria Harila; [2021]
    Nyckelord :biobased; carbon aerogel; lignin; cellulose nanofiber; adsorption; carbon dioxide; zeolite nanoplate;

    Sammanfattning : Over the last 100 years there has been an increase of greenhouse gases (CO2, CH4 and N2O) in the atmosphere. These gases cause several problems with the climate on Earth, such as increasing problems with extreme weather. One way to decrease the outlet of carbon dioxide is by adsorption and capture of CO2. LÄS MER

  7. 5. Acoustic Characterization of the Cellulose-coated Perfluorocarbon Droplets based on Phase Velocity Measurements

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Emma Lindroth; [2020]
    Nyckelord :Ultrasound; Droplets; Contrast agent; Cellulose; Perfluorocarbon; Acoustic characterization; Non-destructive evaluation; Phase velocity; Bulk modulus; Compressibility;

    Sammanfattning : Today, microbubbles are one of the most commonly used ultrasound contrast agents, since their high compressibility results in a strongly scattered signal. Despite this advantage, microbubbles experience limitations by the decreased stability and large diameter. LÄS MER