Reticulation of coating, based on EPDM using ultraviolet radiation (UV)

• Grant number: 99/11410-6
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: March 01, 2000
• End date: August 31, 2000
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Ricardo Aurelio da Costa
• Grantee: Ricardo Aurelio da Costa
• Company: Área Química Ltda
• City: São Paulo

Abstract

The chemical industry patented a series of multicomposite polyolefin- amorphous- waxes, such as non conventional keratins for impermeability and painting. The multi-composites based on EPDM are stable solutions, used to modify the interfacial properties of different substrates. Nonetheless, the coating of non-reticulated EPDM, obtained after the evaporation of the solvent, is recommended for temperatures close to or below room temperature, restricting the use of this coating to these conditions. The project proposes to study the technical viability of producing coatings based on reticulated EPDM, in the ultraviolet region, with speeds of reticulation compatible with its continuous manufacturing process. The experimental work forecasts the preparation of the coatings with EPDM starting from solutions prepared according to the description of Patent PI 8701355-0. The solutions will have additives of photo initiators and commercial reticulation agents. The choices of the photo initiators and reticulation agents will be made in accordance with the solubility of these two additives in the solvents or mixtures, used for the preparation of the elastic-like solutions. The EPDM coatings will be prepared and reticulated, varying the concentrations of the photo initiator and the reticulating agent, irradiation time and thickness of the coating. (AU)