Influence of physico-chemical treatments of the reinforcements on the mechanical behaviour of wood-polymer composites
type: Dataset
description: This thesis focuses on the treatment of wood flour used as reinforcement for polymer matrix composites. Indeed, the lack of compatibility between the hydrophilic wood and the hydrophobic polymers is the major difficulty encountered when processing wood-polymer composites. The treatment of the wood reinforcements is necessary to improve the mechanical and hygroscopic properties of the composites. Here, we proposed to apply direct fluorination to wood flour in order to reduce its hydrophilic character and then improve its compatibility with polymer matrix. Physicochemical characterization of the non-treated and fluorinated wood flours was carried out to observe the fluorination effects. The success of the fluorine grafting onto the wood components was confirmed by chemical analyses. Moreover, significant decrease in the number of moisture adsorption sites in wood was observed. This reduction led to a decrease in the equilibrium moisture content of wood after direct fluorination. In addition, the physical structure of the particles and the thermal behaviour of the wood were not modified by the treatment. Wood-polyester composites were processed by hot compression moulding with non-treated and fluorinated reinforcements. These composites were characterized by tensile, flexural and creep tests. Furthermore, a hygroscopic characterisation was also carried out. The results showed an improvement of the mechanical and hygroscopic properties of the composites with the reinforcements fluorination.
identifier: NNT: 2013CLF22411
issued: 2026-05-06T01:00:33.345792
language: fr
modified: 2026-05-06T01:00:33.345796
contact point: Organization
  fn: CCSD
keyword: bending
keyword: bois
keyword: caracterisation-physico-chimique
keyword: composite
keyword: composites
keyword: creep
keyword: direct-fluorination
keyword: flexion
keyword: fluage
keyword: fluoration-directe
keyword: infoeu-reposemanticsdoctoralthesis
keyword: physicochemical-characterization
keyword: polyester
keyword: spiotherengineering-sciences-physicsother
keyword: tensile
keyword: theses
keyword: traction
keyword: wood
landing page: https://theses.hal.science/tel-00959532

Influence of physico-chemical treatments of the reinforcements on the mechanical behaviour of wood-polymer composites
type: Distribution
format: HTML
issued: 2026-05-06T01:00:33.357601
modified: 2026-05-06T01:00:33.322368
access URL: https://theses.hal.science/tel-00959532

test_moissonnage_selune
type: Agent