Temperature influence on MBS latex aggregate morphology - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Colloids and Surfaces A: Physicochemical and Engineering Aspects Année : 2023

Temperature influence on MBS latex aggregate morphology

Résumé

This paper aims to better understand the impact of process conditions on the morphological properties of MBS (Methacrylate Butadiene Styrene) core-shell latex aggregates during an aggregation process. Laboratory scale experiments were performed in a stirred reactor following a standard industrial procedure including a first destabilization step by adding acid at a moderate temperature followed by a second heating step. The size and shape distribution of the aggregates as well as their fractal dimension were measured by laser diffraction and image analysis. The experimental data were analyzed in terms of number and volume distributions to obtain information on the entire population, from primary nanoparticles to aggregates several orders of magnitude larger. The main new finding of this work concerns the influence of the aggregation temperature on the size, shape and structure of latex aggregates. Indeed, the closer the temperature is to the glass transition of the MBS shell polymer, the better the agglomeration and the aggregates formed tend to be larger and more circular.
Fichier principal
Vignette du fichier
COLSUA_ 676_2023_132139_Author_paper.pdf (2.35 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04261200 , version 1 (26-10-2023)

Licence

Copyright (Tous droits réservés)

Identifiants

Citer

Ali Hamieh, Carole Coufort-Saudejaud, Aline Couffin, Alain Liné, Christine Frances. Temperature influence on MBS latex aggregate morphology. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2023, 676, Part A, 32 p. ⟨10.1016/j.colsurfa.2023.132139⟩. ⟨hal-04261200⟩
42 Consultations
23 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More