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Impact of wood fibers on the mechanical performance of biocomposite materials

Moreno Ivañez de Lara, Jose Maria LU (2021) In TFHF-5000 FHLM01 20211
Department of Construction Sciences
Solid Mechanics
Abstract
Plastics are amazing materials with outstanding properties that make them very useful and cheap for a wide range of uses. However, their pollution to the environment has become one of the main problems to solve in this century.
In this Master Thesis biocomposites from Biofiber Tech are studied. This material is a composite material formed by treated wood fibers and a polymeric matrix. The influence of the fibers in the matrix on the material properties is defined by
many factors such as their orientation, distribution and adhesion capabilities with the matrix.

To study different surface treatments that Biofiber Tech. has developed, Lund University received two different shipments of samples. On the first one, a microstructure... (More)
Plastics are amazing materials with outstanding properties that make them very useful and cheap for a wide range of uses. However, their pollution to the environment has become one of the main problems to solve in this century.
In this Master Thesis biocomposites from Biofiber Tech are studied. This material is a composite material formed by treated wood fibers and a polymeric matrix. The influence of the fibers in the matrix on the material properties is defined by
many factors such as their orientation, distribution and adhesion capabilities with the matrix.

To study different surface treatments that Biofiber Tech. has developed, Lund University received two different shipments of samples. On the first one, a microstructure inspection was performed with X-ray tomography and three different phases were characterized apart from the matrix: fibers, voids and fiber aggregates. The volume fraction, spatial and size distribution and orientation of these phases were quantified and related to the material structure and properties.

For the second shipment of samples received, the study was focused more on the fracture mechanisms by carrying out premortem and post-mortem X-ray tomographies on tensile tested samples, observing the fractures in relation tu the structure of the material and distinguishing if the failure was caused by matrix, fiber or adhesive fracture. (Less)
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author
Moreno Ivañez de Lara, Jose Maria LU
supervisor
organization
course
FHLM01 20211
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
Biocomposite, Composite, X-ray tomography, Image analysis, Injection moulding, Fracture mechanisms
publication/series
TFHF-5000
report number
TFHF-5244
language
English
id
9062867
date added to LUP
2021-08-23 12:28:35
date last changed
2021-08-23 12:28:35
@misc{9062867,
  abstract     = {{Plastics are amazing materials with outstanding properties that make them very useful and cheap for a wide range of uses. However, their pollution to the environment has become one of the main problems to solve in this century. 
In this Master Thesis biocomposites from Biofiber Tech are studied. This material is a composite material formed by treated wood fibers and a polymeric matrix. The influence of the fibers in the matrix on the material properties is defined by
many factors such as their orientation, distribution and adhesion capabilities with the matrix. 

To study different surface treatments that Biofiber Tech. has developed, Lund University received two different shipments of samples. On the first one, a microstructure inspection was performed with X-ray tomography and three different phases were characterized apart from the matrix: fibers, voids and fiber aggregates. The volume fraction, spatial and size distribution and orientation of these phases were quantified and related to the material structure and properties.

For the second shipment of samples received, the study was focused more on the fracture mechanisms by carrying out premortem and post-mortem X-ray tomographies on tensile tested samples, observing the fractures in relation tu the structure of the material and distinguishing if the failure was caused by matrix, fiber or adhesive fracture.}},
  author       = {{Moreno Ivañez de Lara, Jose Maria}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{TFHF-5000}},
  title        = {{Impact of wood fibers on the mechanical performance of biocomposite materials}},
  year         = {{2021}},
}