Modification et stabilisation de la réactivité de tanins traités chimiquement : applications à la préparation de résines adhésives et de mousses écosoutenables

Abstract : The aim of this thesis was to produce foamed materials from natural products, especially from tannins. At the time this thesis began, studies were published on the possibility of doing this type of materials with formaldehyde containing formulations. This was contrary to the desired natural character because in fact, were used natural products reacted with carcinogenic product. It was not possible to present them as "green" materials. During this thesis our aim was to develop expanded materials only from natural or bio-derived raw materials. Tannins are chemically active natural substances that can be used to replace homologous oil derivatives such as phenol which has characteristics of chemical reactivity very similar to those of condensed tannins. Formulations containing condensed tannins have already been studied to develop expanded materials. Considering this argument, this thesis takes place in the form of various projects converging towards a common goal: production of foams with more natural impact and interesting for tannins industry. Five projects have been completed: 1. analysis of various tannins, condensed, hydrolysable and synthetic ; 2. tannin foams production without the use of formaldehyde ; 3. tannin foams production without solvents ; 4. tannin foams production with rigid or elastic behavior ; 5. tannin foams production without acids, but with an alkaline catalysis
Complete list of metadatas

Cited literature [164 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/tel-01750522
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 12:48:20 PM
Last modification on : Tuesday, April 10, 2018 - 1:31:26 AM

File

DDOC_T_2013_0227_GIOVANDO.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01750522, version 1

Citation

Samuele Giovando. Modification et stabilisation de la réactivité de tanins traités chimiquement : applications à la préparation de résines adhésives et de mousses écosoutenables. Alimentation et Nutrition. Université de Lorraine, 2013. Français. ⟨NNT : 2013LORR0227⟩. ⟨tel-01750522⟩

Share

Metrics

Record views

33

Files downloads

133