Journal
APPLIED CLAY SCIENCE
Volume 109, Issue -, Pages 107-118Publisher
ELSEVIER
DOI: 10.1016/j.clay.2015.02.026
Keywords
Nanocomposites; Polypropylene; Natural and synthetic talcs; Surface modification; Nucleating effect
Funding
- French National Research Agency [ANR-09-BLAN-0179-01]
- Agence Nationale de la Recherche (ANR) [ANR-09-BLAN-0179] Funding Source: Agence Nationale de la Recherche (ANR)
Ask authors/readers for more resources
New synthetic talcs were incorporated into a polyolefin matrix to prepare synthetic talc polypropylene (PP) nanocomposites via melt mixing. Different routes of physicochemical modifications of short range (cation exchange or silane grafting) or long range (compatibilizer) order were carried out to achieve an optimized dispersion state. A statistical TEM image analysis methodology was developed to evaluate more quantitatively the dispersion state of the talc particles within the PP matrix. Natural talc was taken as a reference in order to compare its nucleating power and its dispersion capacity with that of the synthetic talcs in the same grade of PP. Even though natural talc acts as the most efficient nucleating agent, the organophilic surface treatment enhances significantly the nucleating effect of the synthetic talcs. By coupling the incorporation of a compatibilizer with a suitable organophilic surface treatment, the synthetic talcs can be also better dispersed than their natural counterpart, giving rise to the formation of a heat shield that delays the thermal degradation of the filled matrix. (C) 2015 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available