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Gear Oil Additive With Dispersibility, Antioxidant And Abrasion Resistance Jun 14, 2017

Before the 1930s, foreign lubricants rarely used additives. With the development of vehicle engine and transmission system design and the development of mechanical equipment, the performance of lubricating oil has been put forward higher and higher requirements. In the 1950s and 1960s,Gear Oil Additive it has been developing rapidly. In the early 1960s, The succinimide ashless dispersant, after the succinimide and metal detergent compound effect of the study found that the two composite use, significantly improved the performance of oil and reduce the total amount of additives, is the 60's Lubricants additives technology in the field of a major breakthrough. In the late 1970s, the development of lubricants in the 1970s was basically in the steady development period. In the 1970s, the lubricating oil additives in the international market were mainly sold in the form of compound agents. In the 20th century, 80 years to continue the development of lubricants compound agent, improve the formula and improve the use of economy, improve the performance of a single agent, the development of multi-functional additives.

Second, the status and development trend of internal combustion engine oil additives

There are many kinds of additives for internal combustion engine oil, which are divided into metal detergent, ashless dispersant, antioxidant antiseptic, friction improver, viscosity index improver, pour point depressant, anti-foaming agent and so on. Is the main functional additive. In recent years,Gear Oil Additive with the improvement of environmental requirements and achieve the purpose of energy conservation, the increasingly high demand for lubricants, lubricants products are increasingly high-grade, additive varieties and demand has also been rapid development.

2.1 Metal Detergent

Metal detergents are important additives for a wide variety of modern engine oils. They include sulfonates, alkylated alkyl phenates, alkyl salicylates, naphthenates, thiophosphonates and other carboxylates. 3 of the vast majority.

At present, the detergent products are still calcium-based, high ash, high toxicity,Gear Oil Additive the use of environmentally polluted barium salt is declining, and the application of low ash magnesium salt is increasing.

2.2 ashless dispersant

The role of ash-free dispersant is mainly scattered, solubilized oil generated in the carbon deposition, sludge and acid oxidation products. Polymer ashless dispersant to maintain good low temperature dispersion performance at the same time, greatly improve the product's thermal stability and high temperature clean performance,Gear Oil Additive more suitable for modulation of high-grade internal combustion engine oil. At present, ashless dispersant is the development of multi-functional and high performance.

2.3 Antioxidant antiseptic

Antioxidants are a wide range of additives. In recent years, with the high-grade lubricants in the control of viscosity growth, sediment reduction, reduce valve wear and other aspects of the demanding requirements of the antioxidant performance also put forward higher requirements. Compounds used as antioxidants are mainly organic compounds containing sulfur, nitrogen, phosphorus and metals, as well as a variety of alkylphenols, due to the traditional alkyl phenols and amine antioxidants at high temperature conditions easy to lose activity , The use of its scope is limited, and only the use of ZDDP series of anti-corrosion preservatives have been unable to meet the high-grade lubricants antioxidant properties, a variety of high temperature shielded phenol type, amine type, organic copper salt, alkali metal salts and other new The development of anti-oxidation additives has been developed rapidly.

2.4 friction modifier

The friction modifier is a class of substances capable of forming a physical adsorption film or a chemisorption film on a frictional surface, thereby reducing the friction factor, acting as a lubricant, and having a means for enhancing the oil film. The development trend of lubricating oil products is to extend the oil change period and improve the fuel economy. The addition of the friction modifier can improve the lubrication condition of the friction pair,Gear Oil Additive which can effectively reduce the friction and wear of the machine and reduce the energy consumption.

2.5 Viscosity Index Improver

Viscosity index modifier, also known as tackifier, is mainly used for internal combustion engine oil, hydraulic oil, automatic transmission fluid and gear oil. Viscosity index improver not only thicken the base oil, improve the viscosity of the oil properties, so that oil has good high temperature lubrication and low temperature fluidity, and can reduce the consumption of fuel and lubricants to achieve universal oil.

Third, the status of industrial oil additives and development trends

Industrial oil additives mainly include extreme pressure antiwear agent, friction modifier, antioxidant, metal deactivator, rust inhibitor, etc., the development trend of industrial oil is to improve the thermal oxidation of lubricating oil stability, to extend the oil change period , Energy saving, while meeting the increasingly stringent requirements. In view of the development trend of industrial oil, industrial oil additives recently appeared in a number of new development direction, such as organic borate type extreme pressure antiwear agent, ultra-high alkali metal detergent, vulcanization inert inert anti-wear agent, nano Type extreme pressure antiwear agent, anti-rust and anti-oxidation performance of the multi-functional extreme pressure anti-wear agent, with extreme pressure performance of the metal deactivator, no ash with a certain base value of anti-rust additives.

Fourth, the conclusion

A, metal detergent requires low ash, high performance, non-toxic, to meet the oil low sulfur, low phosphorus, low ash needs, can reduce the environmental pollution and harm. The development direction of metal detergent mainly has the following aspects: high alkali products to improve the ability of oil acid neutralization; multi-functional detergent mainly through the introduction of different functional groups or different metal salts to improve the overall product performance ; Energy-saving detergent to give some of its anti-friction effect to reduce friction and reduce engine energy consumption; environmentally friendly detergents use low toxicity metal to ensure that the use of such agents will not cause environmental pollution; antioxidant detergent Through the introduction of antioxidant groups, not only can reduce the amount of antioxidants, but also improve the overall performance of the product.

B, in order to meet the requirements of high-grade internal combustion engine oil, ash-free dispersant development is divided into three areas: polymer; no chlorination;

C, the future development of antioxidants is the development of new low-phosphorus,Gear Oil Additive ash-free anti-wear agent and antioxidant additives to compensate for the loss of ZDDP in engine oil.

D, organic molybdenum lubricating oil additive is an excellent friction modifier, antiwear agent and extreme pressure agent; organic borate compound is an urgent need to develop anti-wear and anti-friction multi-functional lubricating oil additives.

E, through random copolymerization, graft copolymerization,Gear Oil Additive grafting and other methods to introduce dispersed, antioxidant, anti-wear groups, as a dispersion, antioxidant and anti-wear properties of multi-effect additives, will be the future viscosity The main direction of the development of the index.