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Morphological, structural, and interfacial changes produced in composites on the basis of polypropylene and surface‐treated sepiolite with organic acids I. Surface treatment and characterization of the sepiolites
Author(s) -
Acosta J. L.,
Ojeda M. C.,
Morales E.,
Linares A.
Publication year - 1986
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1986.070310732
Subject(s) - sepiolite , silanol , materials science , polypropylene , characterization (materials science) , composite material , filler (materials) , polyurethane , composite number , catalysis , chemistry , organic chemistry , nanotechnology , raw material
This research was conducted in order to gain a better knowledge of the possibilities deriving from sepiolite as a polypropylene filler. Special stress has been laid on the study of morphological, structural, and interfacial changes produced by the simple incorporation of sepiolite in the polymeric matrix, as well as on the effects of these changes on all the properties of the resulting composites. In the light of the relevance of filler surface activity with regard to the physical behavior of these materials, we modified this activity through chemical reaction of the superfacial silanol groups in the sepiolite with different aliphatic organic acids. This paper includes a description of the esterfication procedures and a characterization of the different sepiolites obtained.