SYNTHESIS OF RECYCLABLE ALUMINUM FOR THE PRODUCTION OF METALLIC PIGMENTS BY HIGH ENERGY MILLING

1 SOARES Lucas
Co-authors:
1 COELHO Rodrigo 1 LIMA Pedro 1 SANTOS Vanessa
Institution:
1 IFBA – Federal Institute of Bahia, Salvador, Brazil, l.fsoares@hotmail.com
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
1073-1078
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
7 views / 2 downloads
Abstract

Metallic pigments have been developed because of their properties of covering and anti-corrosion protection. Aluminum is a great material to manufacture metallic pigment due to the lamellar format of particles. The lamellar morphology increases the resistant of penetration creating a protection to the surface. The covering morphology of aluminum powder is known as “flake”. In addition, it is possible to recycle aluminum to produce pigment with high quality because of its capacity of recycling repeatedly. This work will focus on the development of metallic pigment using aluminum scrap by high energy milling. The use of reduced particles improves the ability of abrasion resistance, hardness and covering. The ideal morphology was reached by the control of milling parameters such as rotation and time of milling. The flake was produced by decreasing the parameters in high energy mill. The evolution of the particles was achieved in planetary milling using ethil alcohol 95% as additive. The additive was responsible to control the cold fusion in milling process. The material morphology and the size reduction in the different parameters of process were analyzed by Scanning Electron Microscopy (SEM). The model of SEM was Tescan microscope a VEGA 3 LMU. The results indicate that the pigment was diluted in resin epoxy and applied in surface to check its adherence and homogeneity.

Keywords: Aluminum scrap, high energy milling, Nano pigment, metallic paint
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