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jeudi 14 avril 2016

Info Post
By Stephen Robinson


Zinc dialkydithiophosphate is a compound usually found in lubrication engine oils. It is usually an additive that is added to the natural or synthetic oils for the purposes of lubrication to the moving parts. The STP, scientifically treated petroleum has been in production for over seventy years since their discovery in the 1940s. There are several advantages of zddp oil treatment that are above and beyond the normal oil lubricants, thus their persistent use for all those years.

Motor oil that has ZDDP treatment has better anti wear properties since it tends to prevent the metal to metal wear. Therefore, for high performance engines where high speed and power are needed, it is advisable to use oil that has been treated with ZDDP.

The treated oil that has the zinc compound provides better lubrication to the engine moving parts than plain mineral or synthetic oil. Under pressure, the normal oil would breakdown and be lighter in density. But when the zinc dialkydiothiophosphate is added, the density increases and makes the oil more effective under the contact pressure of the moving parts. It also has the zinc metal that acts as the sacrificial wear material and it saves actual metal parts from wearing off.

Gears, bearing and engine moving parts tend to be in contact with each other. Friction is therefore present in the contacts made by the parts. Poorly lubricated contacts happened to produce noises that can be sometimes irritating and disturbing to the ears. To reduce the friction in the moving parts, it requires denser, more viscous oil that can be pushed in between the contacts under high pressure. These oils happen to have the density, borne out of the heavy metals dissolved into the oils.

Zinc compounds added to oil also reduces the chances it burning since it gives the lubrication oil the required viscosity to no vaporize or reach flush point. It also adds thermal stability to the oil by increasing its density. Therefore, the fluid is much stable working at very high temperatures and still gives the ultimate performance and efficiency.

Corrosion is a chemical process where metals decay. One of the reasons oils are used for lubrication is because they do not support metal corrosion. Since many engine parts are made by steel which is susceptible to rusting, the oils act as guard to inhabit that chemical process. They therefore play a big role in avoiding corrosion of the machine parts. The denser oils usually have better properties of guarding against the corrosion of engine parts.

It is much cheaper to produce the ZDDP treated oil since there are companies already established and it has been in used for the longest time. It is also easy to get the mineral zinc metal because it is abundant in the crust of the earth also manufacture the phosphate acids. New technology would prove difficult to research and implement since most engines are depend on the old lubricating oils and it would call for a change to every engine that is in existence making it very expensive an unattainable.

An antioxidant is a molecule that inhibits the oxidation of another molecule. Oxidation in itself is a destructive chemical process that can alter oil properties including viscosity or even damaging the engine parts. The treated oils have antioxidants in their structure that help eliminate the agents that may contaminate them and prevent oxidation to the oiled metal parts.




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