J
John Henderson
Guest
Marcin J. wrote:
> I don't know a lot about biochemistry and my English is not
> fluent but I know something about polymerization. Lets start
> from the background. Natural oils are fats (usually). Fats are
> esters of glycerine and fatty acids. Fatty acids could be
> saturated (only single carbon-carbon bonds) or unsaturated (1,
> 2 or 3 C=C bonds). The higher content of unsaturated bonds -
> the higher ability to polymerize and other reactions.
> Polymerization is responsible for this sticky mass mentioned
> above. Thus I suggest searching for an oil with the smallest
> content of C=C bounds. A book of organic chemistry I have
> mentions two candidates: oil from palm seeds (not palm oil)
> and coconut oil (>75% of saturated acids). Saturated fats are
> not popular these days, if you find something let us know.
Arguably, the best lubricating oils are the synthetic esters
used in jet engines. These used to form one of the base-stocks
in Mobil 1 trisynthetic, but are no longer used there due to
cost, according to many reports. They are polar, and bond
electrostatically to metals.
These days, I use Motul 8100 ester-based engine oil, including
for bicycle chain lubrication. I believe it's ultimately
derived from coconut oil.
John
> I don't know a lot about biochemistry and my English is not
> fluent but I know something about polymerization. Lets start
> from the background. Natural oils are fats (usually). Fats are
> esters of glycerine and fatty acids. Fatty acids could be
> saturated (only single carbon-carbon bonds) or unsaturated (1,
> 2 or 3 C=C bonds). The higher content of unsaturated bonds -
> the higher ability to polymerize and other reactions.
> Polymerization is responsible for this sticky mass mentioned
> above. Thus I suggest searching for an oil with the smallest
> content of C=C bounds. A book of organic chemistry I have
> mentions two candidates: oil from palm seeds (not palm oil)
> and coconut oil (>75% of saturated acids). Saturated fats are
> not popular these days, if you find something let us know.
Arguably, the best lubricating oils are the synthetic esters
used in jet engines. These used to form one of the base-stocks
in Mobil 1 trisynthetic, but are no longer used there due to
cost, according to many reports. They are polar, and bond
electrostatically to metals.
These days, I use Motul 8100 ester-based engine oil, including
for bicycle chain lubrication. I believe it's ultimately
derived from coconut oil.
John