Patrick P. Weckes scite author profile

The ageing behaviour of trimethylolpropane trioleate was investigated at different temperatures in a modified rotary bomb test apparatus. Some physicochemical properties of ageing oil samples, such as acid value, kinematic viscosity, and iodine value, were measured. The oil samples were analysed using gas chromatography, gas chromatography-mass spectrometry, and gel permeation chromatography to assess the influence of temperature on the ageing behaviour of ester-based oils. The results revealed that an increase in temperature could greatly speed up the ageing reaction and increase the formation of decomposition products. However, the degree of oil ageing remained similar when the same quantity of oxygen was consumed.

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Patrick P. Weckes

Mesoporous and amorphous Ti–silicas on the epoxidation of vegetable oils

Resin catalyzed alcoholysis of epoxidized fatty esters: Effect of the alcohol and the resin structures

Heterogeneous catalysts for the production of new lubricants with unique properties

Investigations into the epoxidation and alcoholysis of oleochemicals for use as lubricants

Effect of temperature on the ageing behaviour of unsaturated ester‐based lubricants

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