Sökning: "Teknik och teknologier Materialteknik Pappers-"
Visar resultat 16 - 20 av 225 avhandlingar innehållade orden Teknik och teknologier Materialteknik Pappers-.
16. Biocomposites Based on Core-Shell Cellulose Nanofibers : Preparation, Structure, and Properties
Sammanfattning : Cellulose nanofibers (CNFs) are of interest as load-bearing components for polymer matrix nanocomposites. A wide range of nanostructured materials including nanopaper/films, foams, aerogels, and hydrogels can be prepared from CNFs. The material performance can be fine-tuned when CNFs are combined with different polymer matrices. LÄS MER
17. Study of Paper Dry Strength Additives on Cellulose Fibres
Sammanfattning : Paper packaging is commonly found in the form of paper and cardboard boxes, but recently paper packing is being used in food packaging, trays, beverage packaging and even paper straws, among others. Paper strength additives have been developed to increase the efficiency of the joint strength and the joint areas and potentially maintain bulk in paper products. LÄS MER
18. Preparation and characterization of nanoporous cellulose fibres and their use in new material concepts
Sammanfattning : The overall objective of the work in this thesis is to better utilize the non-collapsed structure of the delignified wood-fibre cell wall in the preparation of new types of materials.In order to utilize the fibres in new materials, it is crucial to have a well-defined starting material and to know how it reacts to certain treatments of the fibres. LÄS MER
19. Design of Cellulose-Based Materials via Sustainable and Scalable Processes
Sammanfattning : Plastic pollution is one of the most pressing environmental issues in today’s world. Addressing this problem calls for the development of environmentally friendly alternatives that would reduce the amount of persistent plastic waste. LÄS MER
20. Modelling Fiber Network Materials:Micromechanics, Constitutive Behaviour and AI
Sammanfattning : This thesis focuses on understanding the mechanical behavior of fiber-based materials by utilizing various modeling approaches. Particular emphasis is placed on their structural variability, anisotropic properties, and damage behavior. LÄS MER