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Theses

Amélioration des résines Urée-Formaldéhyde et Phénol-Formaldéhyde pour le collage des panneaux à base de bois

Abstract : The work in this thesis has tried to improve the characteristics of aminoplastic and phenolic resins used to make wood particleboard and plywood. To achieve this a number of different additives, active extenders and fillers have been added to the resins. These were polymeric diphenylmethane diisocyanate (pMDI), micronized waste polyurethane (PUR) powders, a protein namely albumin, a number of fluorinated polyethers (PolyFox) and urea-formaldehyde (UF) polycondensates in which part of the formaldehyde was substituted with propionaldehyde to form urea (formaldehyde-propionaldehyde (UFP) resins. The totality of the formulations and methodologies used for the preparation of the resins is presented in this thesis. Four types of laboratory resins have been synthetised : UF (Urea-Formaldehyde), PF (Phenol-Formaldehyde), UFP (Urea-Formaldehyde-Propionaldehyde) and UP (Urea-Propionaldehyde). Two commercial UF resins have also been used. All the resins were analysed by 13C NMR, gel permeation chromatography (GPC), thermomechanical analysis (TMA) and infrared spectrometry (FT-IR). The plywood and wood particleboard were prepared with the different glue-mixes, and tested according to the specifications of the relevant European Norms. Some of the panels were also analysed by X-ray microdensitometry and MEB.
Document type :
Theses
File URL :
http://docnum.univ-lorraine.fr/prive/SCD_T_2007_0081_MANSOURI.pdf
Complete list of metadatas

https://hal.univ-lorraine.fr/tel-01747008
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Submitted on : Thursday, March 29, 2018 - 10:49:25 AM
Last modification on : Tuesday, March 10, 2020 - 10:29:33 AM

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  • HAL Id : tel-01747008, version 1

Citation

Hamid Reza Mansouri Komsari. Amélioration des résines Urée-Formaldéhyde et Phénol-Formaldéhyde pour le collage des panneaux à base de bois. Autre. Université Henri Poincaré - Nancy 1, 2007. Français. ⟨NNT : 2007NAN10081⟩. ⟨tel-01747008⟩

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