Processing and determination of the dynamic mechanical thermal properties of phenolic resins abrasives materials for grinding wheels

• Grant number: 14/18967-8
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: December 01, 2014
• End date: August 31, 2015
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Katia Cristiane Gandolpho Candioto
• Grantee: Raphael Schweiger Freitas Bottairi
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil

Abstract

Abrasives are considered strategic materials. Brazil consumes large amount of wheels per year, although its potential is even greater. The number and types of abrasive grit sizes available is quite large, with the number of possible composition, structures and shapes of hardness that can reach a large number of products, almost innumerous alternatives, for this reason a "complexity" formulations is directly linked to the number of components used to attend the needs of some specifically purpose. Due to technological interests involved in this area of abrasive manufacturing, little information is available to the community. Viscoelasticity is an exclusive property of polymers and influence in its application. Due to its importance, this feature has been widely explored in books, book chapters and innumerous articles have been studied in the description and interpretation of the viscoelastic phenomenon. The characterization experiments indicate the correlation between the material's properties and performance. Information obtained by experience and experiments serve as guides to the practice of engineering.The proposed project will be developed through the production and characterization by dynamic mechanical thermal analysis (DMTA) of resinoid abrasive composites for abrasive materials. In order to study the effects of the burning process in the composition of resinoid abrasive materials, samples will be characterized by differential scanning calorimetry analysis (DSC), dynamic mechanical thermal analysis (DMTA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and optical microscopy (OM). It is expected that with the preliminary results based on engineering concepts and materials will be possible, even indirectly, to increase the chance of developing a product (abrasive material for grinding wheel) of well-defined thermomechanical properties with new proposals materials, formulations, as well as different process parameters, which may be available to the community.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

AMARAL, EMANUELLE MACHADO; SCHWEIGER, RAPHAEL; BOTTAIRI, FREITAS; GANDOLPHO CANDIOTO, KATIA CRISTIANE; ASME. HEXAMETHYLENETETRAMINE LEVELS EFFECT OVER THE YOUNG'S MODULUS IN ABRASIVE MATERIALS. PROCEEDINGS OF THE ASME 2020 15TH INTERNATIONAL MANUFACTURING SCIENCE AND ENGINEERING CONFERENCE (MSEC2020), VOL 2A, v. N/A, p. 4-pg., 2020-01-01. (14/18967-8, 13/26633-0)