Performance evaluation of cutting fluids additives developed from recycling of polyethylene terephthalate

Negm, Nabel A.; Kandile, Nadia G.; Ashraf, Muhammad; Salam, El; Atef, Shady

doi:10.9790/5736-07516979

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…A weak absorption band appears at 2100 cm -1 corresponds to the C-N amide group of polyurethane segments. That proves the incorporation of polyethylene glycol in the chemical structure of GPU [27].…”

Section: Structurementioning

confidence: 71%

Influence of Glycolyzed Polyurethane on Emulsions Containing Vegetable Oils for Metal Cutting Fluid Application: Effect of Hydrophilic Chain

Bekhit¹

2018

PPEJ

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In order to produce environmentally friendly and efficient metal working fluids and also to reduce the impact of waste polyurethane polymer in the environment, polyurethane polymers were recycled in novel process. Waste polyurethane foam was glycolyzed using polyethylene glycol 400-600-1500-4000-6000 to give the glycolyzed products (GPU). GPU was esterified by oleic acid to obtain GPUO. The prepared additive was used as emulsifier in the formulation for metal working fluid application in presence of castor oil as environmentally friendly oil. The results showed good stability of the prepared water-vegetable oils emulsions. The pH, specific gravity, kinematic viscosity at 40 o C, 100 o C, surface tension, and anticorrosion tests of the prepared formulation showed acceptable results comparing with the published data for several working fluids formulations.

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Section: Structurementioning

confidence: 71%

Influence of Glycolyzed Polyurethane on Emulsions Containing Vegetable Oils for Metal Cutting Fluid Application: Effect of Hydrophilic Chain

Bekhit¹

2018

PPEJ

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“…Metal cutting fluid formulation is simply emulsions of oil in water. The stability of that emulsion is a key phenomenon which determined the applicability of the cutting fluid in metal processing [47]. The emulsification power determines the stability of the cutting fluid after certain time.…”

Section: 3 Emulsion Stabilitymentioning

confidence: 99%

Synthesis and evaluation of polymeric dispersant based on vegetable oils their application as cutting fluid

et al. 2021

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In this work, a novel vegetable oil-based polymeric agents were prepared by epoxidation of rapeseed oil (RO) and castor oil (CO) followed by ring opening reaction of epoxidized products, (epoxidized rapeseed oil and epoxidized castor oil) (ERO) and (ECO) with polyethylene glycol with different molecular weights (400, 600 and 10000 g/mole). The prepared polymers were characterized by 1 H NMR, FTIR and GPC for determination of molecular weight. The properties of epoxidized vegetable oil (EVO) and Polymeric vegetable oils (polymeric dispersant of rapseed (PDR) and (polymeric dispersant of castor (PDC) were studied. The prepared polymers were employed as emulsifiers for metal working cutting fluids (MWCF) application.

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“…Vegetable oil hydrolysis was performed according to our previous work [36]. In a typical procedure, 100 g of castor oil reacted with sodium hydroxide water solution (250 mL of 10 % by weight) and the reaction mixture was heated by water bath at 45°C for 2 h. Then twice-distilled water (400 mL) was added while stirring for 90 min until the mixture became almost clear.…”

Section: Hydrolysis Of Vegetable Oilsmentioning

confidence: 99%

Eco‐Friendly Vegetable Oil‐Based Metalworking Fluid (MWFs) from Modification of Glycolyzed Products of Polyurethane

Negm

El-Sukkary

Sayed

et al. 2016

J Surfact & Detergents

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In order to produce environmentally friendly and efficient metalworking fluids and also to reduce the impact of waste polyurethane polymer in the environment, polyurethane polymers were recycled in a novel process. Waste polyurethane foam was glycolyzed using polyethylene glycol 400 to give the glycolyzed product (GPU). The GPU was esterified using oleic acid, linoleic acid, and acids obtained from hydrolysis of rapeseeds oil, coconut oil, and castor oil to obtain GPUO, GPUL, GPUA, GPUB, and GPUC, respectively. The prepared additives were used as emulsifiers in the formulation for metalworking fluid application in the presence of rapeseed oil, coconut oil, and castor oil as environmentally friendly oils. The results showed good stability of the prepared water-vegetable oil emulsions. The pH, specific gravity, kinematic viscosity at 40 and 100°C, surface tension, and anticorrosion tests of the prepared formulation showed acceptable results compared with the published data for several metalworking fluid formulations.

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Performance evaluation of cutting fluids additives developed from recycling of polyethylene terephthalate

Abstract: Metalworking-fluids (MWFs)

Cited by 4 publications

References 12 publications

Influence of Glycolyzed Polyurethane on Emulsions Containing Vegetable Oils for Metal Cutting Fluid Application: Effect of Hydrophilic Chain

Influence of Glycolyzed Polyurethane on Emulsions Containing Vegetable Oils for Metal Cutting Fluid Application: Effect of Hydrophilic Chain

Synthesis and evaluation of polymeric dispersant based on vegetable oils their application as cutting fluid

Eco‐Friendly Vegetable Oil‐Based Metalworking Fluid (MWFs) from Modification of Glycolyzed Products of Polyurethane

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