New Sulfurised Isobutylene Boosts Lubricant Additive Performance

In the vast landscape of modern industrial civilization, every precise movement of machinery relies on the vital support of lubricants—the "lifeblood" of mechanical systems. As global manufacturing advances toward higher precision and heavier loads, traditional lubrication solutions face unprecedented challenges under extreme operating conditions.

Industries such as steel smelting, large-scale mining, deep-sea drilling, and precision automotive manufacturing expose mechanical components to unimaginable stress. In these harsh environments, microscopic surface irregularities can lead to "micro-welding" during high-speed friction, resulting in sintering, pitting, or catastrophic equipment failure.

AD-321HT emerges as a solution to this dilemma. As a key component in modern gear oil formulations, this sulfurized isobutylene additive (CAS NO.: 68511-50-2) stands out with its high sulfur content, creating a chemical reaction film on metal surfaces that achieves perfect balance between lubrication performance and metal protection.

The industry-leading performance of AD-321HT stems from its unique molecular structure design. Under high-temperature, high-pressure friction conditions, the additive rapidly reacts with active metal surface sites to form a dense iron sulfide protective film. This film demonstrates exceptional shear strength while creating effective physical separation between friction pairs.

Key technical advantages include:

• Exceptional load-bearing capacity: Maintains lubricant film integrity under extreme conditions, significantly reducing maintenance costs from wear.
• Synergistic compatibility: Works effectively with phosphorus-containing additives to achieve superior anti-wear performance.
• Advanced metal protection: Maintains high sulfur activity while minimizing corrosion, with copper strip corrosion tests consistently ≤3b.
• Superior physical properties: The light-colored oily liquid demonstrates excellent oil solubility and easy dispersion in various base oil systems.

• Automotive and industrial gear oils: Enhances impact resistance for smooth power transmission in vehicles and long-term protection for industrial gearboxes.
• Metalworking fluids: Reduces tool wear and improves surface finish precision in high-load processes like cutting and stamping.
• Drilling rig lubricants: Provides reliable performance in extreme drilling environments, ensuring continuous operation of energy extraction equipment.
• Heavy-duty greases: Serves as a core extreme pressure additive for bearings operating under prolonged low-speed, high-load conditions.

AD-321HT production strictly follows international quality standards with precise technical parameters: density (1.05-1.20 g/cm³), kinematic viscosity at 100°C (5.0-11.0 mm²/s), flash point (≥100°C COC), and sulfur content (40-46 wt%).

For optimal storage stability, the product should be kept in dry, ventilated warehouses below 45°C according to SH/T0164 standards, maintaining a two-year shelf life.

As Industry 4.0 advances, equipment efficiency and longevity become crucial for reducing carbon emissions and improving energy utilization. AD-321HT represents not just an additive, but a crystallization of modern lubrication science—transforming chemical activity into mechanical protection for industrial equipment operating under the world's most demanding conditions.