Environmental Evaluation of Silanes as Adhesion Promoters for Organic Coatings Articles uri icon

publication date

  • April 2012

start page

  • 308

end page

  • 320

issue

  • 4-6

volume

  • 88

international standard serial number (ISSN)

  • 0021-8464

electronic international standard serial number (EISSN)

  • 1563-518X

abstract

  • Special Issue on Papers from the 1st International Conference on Structural Adhesive Bonding (AB2011), Porto, Portugal, 7-8 July 2011. The Journal of Adhesion. [Resumen]. In the literature of silane treatment there are not many studies about the deterioration of baths of silane and the possible treatments that could be used to reduce their polluting effects. The purpose of this paper is to study how the silanes (1,2-Bis(triethoxysilyl)-ethane) (BTSE) and (gamma-methacryloxypropyltrimethoxysilane) (MPS) can be safely returned to the environment under certain conditions after they are used as adhesion promoters. There is a restriction on the level of pH, conductivity, and chemical oxygen demand (COD) of waste waters by the European Union. Therefore, the two solutions were tested using permanganate to oxidize the silane under different pH levels to determine the most effective way to treat and decrease the COD level. Also, infrared spectroscopy (FTIR-ATR) tests were performed to correlate with the species present after different times of aging.

keywords

  • 1;2-bis(triethoxysilyl)-ethane (btse); environmental issues; gamma-methacryloxypropyltrimethoxysilane (mps); silane