New water-soluble metal working fluids additives derived from the esters of acid anhydrides with higher alcohols for aluminium alloy materials
by Syutaro Yamamoto, Hideyuki Tomoda, Shoji Watanabe
International Journal of Materials and Product Technology (IJMPT), Vol. 32, No. 1, 2008

Abstract: Water-soluble metal working fluids are used for processing of aluminium alloy materials. This short article describes properties of new additives in water-soluble metal working fluids for aluminium 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 glycol with maleic anhydride and succinic anhydride showed both of an excellent anti-corrosion property against aluminium 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.

Online publication date: Mon, 19-May-2008

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