Skip to Main content Skip to Navigation
Theses

Mise au point de nouveaux bio-composites verts innovants à base de roseau commun Phragmites australis : applications en plasturgie et en éco-construction pour le bâtiment

Abstract : The use of plant fibres, both in the field of plastics processing and in the building industry, makes it possible to reduce greenhouse gas emissions and therefore the environmental impact of mankind. Interest in biocomposites using plant fibres such as hemp, wood, flax and also miscanthus reed is increasing. Nowadays, there is very little work on the reed phragmites australis. However, as it does not use cultivated areas, this invasive plant is independent of agricultural issues and does not require any chemical inputs. The reed harvest is therefore part of a wetlands management approach while enhancing the value of a material with multiple properties. This work is devoted to the characterisation of the raw material phragmites australis and to the study of its eligibility as a substitute material of three reference materials, wood, miscanthus and hemp shiv, widely used as reinforcements in plastics processing and eco-construction. Composite formulations using two polymer matrices (polypropylene and polybutylene succinate) with different rates of plant fillers and coupling agent were characterised from the point of view of their mechanical properties by Charpy tensile, flexural and impact tests. The water ageing of these composites was also studied and correlated to the hydrophobic character of the reed. For the construction application, formulations based on reeds of different origins and using different binders (lime, plaster and earth) were tested in compression and with thermal conductivity measurements in order to evaluate the behaviour of the reed as a material for building use.
Document type :
Theses
Complete list of metadata

https://tel.archives-ouvertes.fr/tel-03173230
Contributor : ABES STAR :  Contact
Submitted on : Thursday, March 18, 2021 - 12:24:08 PM
Last modification on : Wednesday, March 16, 2022 - 3:50:19 AM
Long-term archiving on: : Monday, June 21, 2021 - 8:58:42 AM

File

2020theseHonoreM.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-03173230, version 1

Collections

Citation

Mathilde Honoré Honoré. Mise au point de nouveaux bio-composites verts innovants à base de roseau commun Phragmites australis : applications en plasturgie et en éco-construction pour le bâtiment. Matériaux. Université de Bretagne Sud, 2020. Français. ⟨NNT : 2020LORIS572⟩. ⟨tel-03173230⟩

Share

Metrics

Record views

449

Files downloads

153