Classification of lubricating oil additives

(1) Cleaning dispersant: adsorbs oxidation products and disperses them in the oil. The planktonic component is resistant to oxidation, corrosion, combination and synthesis.
The main products are: Low base synthetic calcium alkyl benzene sulfonate, high base linear alkyl benzene calcium sulfonate, long chain linear alkyl benzene high base synthetic calcium sulfonate, high base synthetic calcium dialkylbenzene sulfonate, long chain linear alkyl benzene high base synthetic magnesium sulfonate, high base alkylphenol sulfide, polyisobutylene succinimide, borated polyisobutylene succinimide, high molecular weight polyisobutylene succinimide, Borated high molecular weight polyisobutylsuccinimide.
(2) Antioxidant anti-corrosion agent: improve the oxidation stability of oil products - prevent metal oxidation, catalytic obsolescence delay the oxidation rate of oil products isolated acid and metal contact to produce a protective film with anti-wear.
The main products are: thiophosphate butyl octyl zinc salt, thiophosphate bisoctyl zinc salt, basic thiophosphate bisoctyl zinc salt, thiophosphate propyl octyl primary zinc salt, thiophosphate secondary alkyl zinc salt.
(3) extreme pressure anti-wear agent: the high-temperature part of the friction surface can react with the metal to produce substances with low melting point, saving fuel consumption and vibration noise. Extreme pressure agents: Most of them are sulfides, chlorides, phosphates, which can react with metals at high temperatures to produce lubricating substances, providing lubrication under harsh conditions.
Main products: sulfide isobutylene, thiadiazole derivatives (TH561)
(4) Oil-based agents: are active substances with polar molecules, which can form a firm adsorption film on the metal surface, and can prevent direct contact with the metal friction surface under the condition of boundary lubrication.
(5) Antioxidant anti-gel agent used as gasoline, lubricating oil, paraffin and other products antioxidant, anti-gel agent, rubber and plastic antioxidant.
(6) viscosifier: also known as thickener, mainly minamata type has extremely high molecular compounds, viscosifier can not only increase the viscosity of the oil, and can improve the viscosity of the oil.
(7) Rust inhibitor: some polar compounds, have a strong adsorption force on metal, can form a tight adsorption film on the interface of metal and oil to isolate moisture, moisture and acid erosion; Rust inhibitors can also prevent oxidation and prevent the formation of acid oxides, thus playing a role in rust prevention.
(8) The coagulant reduces the freezing point of the oil and improves the low temperature fluidity of the oil
(9) Anti-foam agent: the bubble can quickly overflow the oil surface, lose stability and easy to break, thus shortening the time of bubble existence.
(10) Demulsifier: It has high degradation performance and water extraction ability for oil products