Nano Tungsten Trioxide Lubricating Oil Additive

In industrial production, friction and wear are the main causes of material damage, increasing energy consumption and mechanical equipment scrapping, which has brought serious economic losses. The purpose of lubrication is to reduce friction, wear and energy consumption. The important means of lubrication technology is the use of lubricants, which can be divided into liquid lubricants, solid lubricants and solid-liquid compatible lubricants.

Nano-tungsten trioxide is an ideal lubricant additive because of its high temperature resistance, wear resistance, friction reduction and energy saving. However, due to the large specific surface area of nano-tungsten trioxide, it is easy to produce magnetic, agglomeration and precipitation problems when it is applied to lubricants, which restricts the development of nano-lubricants.

In order to produce qualified nano-tungsten trioxide lubricant additives, nano-materials need to be treated. The process is as follows:

Choose 30-60 nanometer tungsten trioxide powder, L-102 coupling agent, antioxidant and antiwear agent T323 aminothioester, T534 high temperature antioxidant, dispersant T161 macromolecule butadiene imine, lubricant base oil 150N. The equipment uses kneader, reaction kettle, filter, homogenizer, colloid mill, including the following steps:

(1)Add 30-60 nanometer tungsten trioxide powder 0.2-0.4 kg to kneading machine, heat kneading to 85 ~℃ and add L-102 coupling agent 0.1-0.3 kg. When the temperature rises to 135 ~℃, kneading machine completes in one hour and enters the next process (2);

(2)T323 antioxidant and antiwear agent aminothioester 10-15kg was added into 130 colloidal mill, and kneaded nano-tungsten trioxide powder was added when the temperature reached 50 ℃. When the temperature rose to 75-80 ℃, the process was maintained for 45 minutes (3).

(3)When 150 N base oil 78-82 kg was added to 135L reactor and heated at 50 ℃, high temperature antioxidant T5340.3-0.5 kg, dispersant T161 high molecular weight butadiene imine 3-5 kg and colloidal nano-tungsten trioxide colloidal liquid were added in turn. When the temperature rose to 75-78 ℃, the reaction was completed for 1.5 hours, and nano-tungsten trioxide solid-liquid compatible liquid was obtained and entered the process (4).

(4) The qualified nano tungsten trioxide lubricating oil additive can be obtained by adding nano-tungsten trioxide solid-liquid compatible liquid which reacts well in the reactor into homogenizer twice and filtering in a filter with a precision of 1 um.

Nano tungsten trioxide is an energy-saving, antifriction and wear-resistant lubricant for the addition of materials. Its principle is high temperature resistance and high hardness of nano tungsten trioxide particles. The nano tungsten trioxide in the process does not weaken with the oxidation of lubricating oil, but the friction and wear resistance of the lubricating oil can not change. Eutectic ball lubrication can be formed in lubricating oil. Moreover, the nano three oxidation after treatment is achieved. Tungsten has micro-magnetism, which can quickly repair and increase the cylinder pressure of the engine. It can greatly reduce friction and wear of the engine parts, so as to save energy, reduce friction and wear, prolong oil exchange period and reduce exhaust emissions.

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