Water-Soluble Metal Working Fluids Additives Derived from the Esters of Acid Anhydrides with Higher Alcohols for Aluminum Alloy Materials

Abstract

Water-soluble metal working fluids are used for processing of aluminum alloy materials. This short article describes properties of new additives in water-soluble metal working fluids for aluminum alloy materials. Many half esters or diesters were prepared from the reactions of higher alcohols with acid anhydrides. Interestingly, diesters of PTMG (tetrahydrofuran oligomer, MW = 650 and 1000) and polybutylene oxide (MW = 650) with maleic anhydride and succinic anhydride showed both of an excellent anti-corrosion property for aluminum alloy and a good hard water tolerance. The industrial soluble type processing oils including these additives also showed anti-corrosion property and hard water tolerance.

Genotoxic Effects of Aluminum Chloride and Their Relationship with N-Nitroso-N-Methylurea (NMU)-Induced Breast Cancer in Sprague Dawley Rats

“…Aside from the multiple industrial applications of aluminum, it has applications in different fields including a few uses related to human consumption such as a flocculant in drinking water purification processes, as an adjuvant in vaccine preparation, and as an additive in beverages, foods (e.g., sweets and cheeses), antiperspirants and deodorants, among others [1][2][3][4][5][6][7]. However, the soluble forms of aluminum are considered potentially toxic because of their high water solubility and genotoxic capacity and because of our exposure to these soluble forms at subacute and chronic levels on a daily basis [6,8,9].…”

Validación De Un Método Analítico Para Cuantificar Aluminio en Tejidos De Ratas Sprague Dawley Mediante Eaa-Flama Y Eaa-Horno De Grafito

“…Debido en parte a que la gran mayoría de los estudios relacionados con los daños potenciales del Al se han basado en el uso de animales de experimentación, como ratas y ratones (Yamamoto et al 2007, Yokel et al 2008, las metodologías analíticas utilizadas para la cuantificación de este metal en tejidos animales son variadas.…”

X‐ray absorption near‐edge structure analysis of tribofilms generated by highly efficient, friction‐reducing additive in water–polyglycol–glycol lubricant

“…Friction modifi ers are important lubricant additives that have been widely studied for a number of years. For example, carboxylic acids or derivatives 3,4 and phosphoric or phosphonic acids and their derivatives 5,6 are friction modifi ers, which can react with the friction pairs and form low-strength chemical fi lms to protect the metal surface from adhesion and damage. Although most additives are designed as oil-based lubricants, there has recently been interest in friction modifi ers for water-based fl uids, especially in metalworking applications and hydraulic fl uids.…”