Today's KNOWLEDGE Share : New Anti-Wear and Anti- Seizure Polymer Additive

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Today's KNOWLEDGE Share

Sanyo Chemical Develops New Anti-Wear and Anti- Seizure Polymer Additive for EV Drive Units

Sanyo Chemical Industries, Ltd. has developed a new antiwear and anti-seizure polymer additive, “ACLUBE NS-100,” specifically designed for E-Axle drive units in electric vehicles (EVs). This additive addresses the challenges associated with the trend toward lower-viscosity lubricants for EVs (E-fluid), such as thinner oil films and increased risk of wear and seizure. ACLUBE NS-100 demonstrates excellent anti-wear property and anti-seizure property. In addition, it offers multiple properties required for Efluid, such as copper corrosion resistance, electrical insulation, and oxidation stability. These features contribute to enhanced durability of E-Axle units and help to improve both the driving range and energy efficiency of EVs.


 Product Features The newly developed ACLUBE NS-100 utilizes Sanyo’s proprietary organic polymer technology, which was cultivated through the ACLUBE series originally developed for engine vehicle lubricants to improve viscosity characteristics.

With a unique design that introduces adsorptive functional groups to the polymer side chains, this additive offers the following features:

1. Excellent Oil Film Formation, Anti-Wear Property, and Anti-Seizure Property

(1) Adsorptive functional groups on the side chains enable the formation of a sufficiently thick oil film, even at low viscosity.

(2) With only 2 wt% addition as the polymer component, ACLUBE NS-100 improves the last non-seizure load by up to approximately 25% compared to the base Efluid (without additive) (as evaluated by the 4-ball method).

(3) Reduces the risk of drive unit failure due to wear or seizure, contributing to higher efficiency and longer life of gear components.

(4) IT can be used in combination with other additives, such as phosphorus compounds, for even greater anti-wear and anti-seizure property. 


2. Provides the Basic Properties Required for E-fluid

(1) The optimized organic polymer structure ensures that the product possesses copper corrosion resistance, electrical insulation, oxidation stability, and other essential properties required for E-fluid.


(2) Performance equal to or better than conventional products has been confirmed through copper strip corrosion tests, volume resistivity measurements, and accelerated oxidation tests


source: Sanyo Chemical

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