The Lubricant Additive Component Pour Point Depressant can be classified as 3 types: Alkyl Naphthalene, Polymethacrylate PMA and Poly α-olefine PAO.
(1) Alkyl Naphthalene has been condensed with CNS and Naphthalene for more than 70 years since 1931, and is still one of the main pour point depressants. Alkyl Naphthalene pour Point depressant is dark brown, which has good anticoagulant effect on medium and heavy lubricating oil. Because of its dark color, it is not suitable for light color oil, and is often used in internal combustion engine oil, Gear Oil and total loss oil. It is the first additive variety produced in our country, and the output is also large, accounting for more than half of the whole pour point depressant. The product code name is T801.
(2) Polymethacrylate (PMA) polymethacrylate is a kind of high efficiency light color pour point depressant, which has good anticoagulant effect on all kinds of lubrication, and also has the effect of improving viscosity index. Polymethacrylate is transparent and colorless, and its relative molecular weight is generally less than 1000.
If polymethacrylate has the effect of increasing viscosity, the relative molecular weight of polymethacrylate can reach hundreds of thousands. For ease of use, it is usually mixed with a concentration of 50-60%. Polyacrylic (PAA) is also an effective pour point depressant, which is also available abroad, selling LZ3152 of Lubrizol and SWLM-5X of Glissovisca VAS, Shell of BASF. This kind of pour point depressant was also developed in China in 1980s, which has anticoagulant effect in the Base Oil produced by paraffin group, intermediate group and cycloalkyl crude oil.
(3) The color of poly α-olefine polyolefine pour point depressant is light and the effect is good. It can be used in all kinds of lubricating oil, and its effect is the same as that of PMA polymethacrylate, but the price is cheaper than that of PMA. Poly (α-olefine) can produce a series of products according to the average carbon number and molecular weight of alkyl side chain, such as T830 for shallow dewaxing oil, T803A and T803B for deep dewaxing oil (T803A is larger than T803b molecular weight), and the general dosage is 0.1-1.0%. As described earlier, the anticoagulant effect of poly α-olefine pour point depressant mainly depends on the carbon number and carbon number distribution of alkyl side chain. At the same time, it is also affected by the properties of base oil.
Pour Point Depressant is a kind of Lubricant Additive Component, and it is well compatible with TBN Booster Calcium Sulfonate, Antiwear EP Additive , Ashless Dispersant , High Temperature Antioxidant, Rust Preventative Anti-rust Additive, Corrosion Inhibitor ZDDP , ect., to blend make different kinds of Additive Package , such as Hydraulic Oil Additive Package, Gear Oil Additive Package, 4T Motorcycle Oil Additive Package,, PCMO Gasoline Engine Oil Additive Package, HDEO Diesel Engine Oil Additive , ect.
