Utilization of microparticles of cork as reinforcing material for fragile structural adhesives [Utilização de micro partículas de cortiça como material de reforço em adesivos estruturais fràgeis]

• Type: Article in International Scientific Journal
• Date: 2013

Authors

barbosa, aq (Author) Other; da silva, lfm (Author) FEUP; ochsner, a (Author) Other; abenojar, j (Author) Other; del real, jcd (Author) Other

Journal

Title: Ciencia e Tecnologia dos Materiais

Vol. 25

Pages: 42-49

ISSN: 0870-8312

Publisher: Elsevier España

Indexing

ISI Web of Knowledge

Scopus - 7 Citations

Other information

Authenticus ID: P-009-DXV

DOI: 10.1016/j.ctmat.2013.12.004

Abstract (EN): The inclusion of particles (nano or micro) is a method to improve the mechanical properties, such as toughness, of structural adhesives. Structural adhesives are known for their high strength and stiffness but also for their low ductility and toughness. There are many processes described in the literature to increase the toughness, such as rubber particles. In the present study, natural micro particles of cork were used with the objective to increase the mechanical properties of a brittle epoxy adhesive. The cork particles act like as a crack stopper leading to higher displacement of the specimen. The influence of the inclusion of cork particle was studied. Particles of cork ranging from 125 to 250 ¿m were mixed in the epoxy adhesive Araldite 2020 from Huntsman. This evaluation was made using tensile and impact tests and it was evident that mechanical properties were related to amount of cork particles in the resin, considering a uniform particle distribution. © 2013 Sociedade Portuguesa de Materiais (SPM).

Language: Portuguese

Type (Professor's evaluation): Scientific

No. of pages: 8