Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Improvement in Fiber / Matrix adhesion through Chemical treatments: A Review
Submission Author:
MICHEL GIFFONI SANTOS , BA
Co-Authors:
MICHEL GIFFONI SANTOS, Victor Barbosa, Vitor Lacerda, Carlos Alberto França Junior, Aldemiro Rocha Palma, Mirtânia Leão
Presenter: MICHEL GIFFONI SANTOS
doi://10.26678/ABCM.COBEM2021.COB2021-1479
Abstract
The growing concern with sustainability foments the development of researches regarding to polymer composites reinforced with natural fibers, which represent an ecological alternative to the commonly used synthetic ones. However, natural fiber reinforced polymer composites present obstacles due to the weak interfacial interaction between the fiber and the polymeric matrix. To minimize this problem, chemical treatments can be performed to improve the adhesion and consequently the mechanical properties of the composite. The objective of this research is to produce a bibliographic review about chemical treatments made on natural fibers for application in polymer composites. The search for the articles was carried out through a systematic review of the literature on Scopus and Science Direct databases. The parameters defined for the selection of the articles for the bibliographic data are related to the influence of chemical treatments on the fiber/matrix interface on polymer composites. The results show that the most applied treatment in natural fibers is the alkaline treatment with NaOH (mercerization), due to its widely spread methodology. Nonetheless, mercerization does not have great effectiveness in removing the wax, so it is often applied as a pre-treatment. Seeking a better efficiency in the fiber/matrix adhesion, and besides improving the stability of the composite, treatments with silane and permanganate were also analyzed in this review.
Keywords
polymer composites, natural fibers, Coupling Agents, Chemical Treatments, Alkaline treatment
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