1.Product Introduction
- MAXEP series phosphate amine salt has excellent anti-wear and extreme pressure properties;
- Ash-free products;
- Good anti-emulsification ability;
- It has good compatibility with all kinds of base oil;
- Recommended for stamping stretching, cutting, rolling and other pure oil products, can also be used in metal processing fluid;
- Recommended addition: 0.5-3.0%
Basic product data
| Project | MAXEP 017 | MAXEP 276 |
| Phosphorus content (%) | 9.7 | 10.5 |
| Acid number (mg KOH/g) | 136.0 | 221.0 |
| Kinematic viscosity at 100 ℃ (mm²/s) | 100.0 | 559.0 |
- Performance Test
Below we will show the performance comparison of phosphoric acid ester amine salt and traditional phosphoric acid ester, Here we use Shanghai Yucheng’s N-5 phosphate additives for comparison
1.PB performance comparison
Extreme pressure properties in different base oils
Test method: GB/T3142
Test conditions: 0.5% additive+99.5 0N/T22/Vegetable oil

Summary: MAXEP276 showed excellent extreme pressure performance in all kinds of base oils. MAXEP017 showed excellent extreme performance in 150N, and the lubrication performance showed a downward trend in T22 and vegetable oil.
- Long grinding performance comparison
Test scheme: 1% additive+99 0N/T22/Vegetable oil
Test method:Normal temperature environment, grinding for 60 minutes at 1200rpm/min under a pressure load of 40kgf

150N in the wear spot picture
| Project | EP017 | EP276 | N5 |
| Grinding spot diameter | 0.4546 | 0.5322 | 0.5551 |
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Picture of wear spots in T22
| Project | EP017 | EP276 | N5 |
| Grinding spot diameter | 0.3887 | 0.7044 | 0.5672 |
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Picture of grinding spots in vegetable oil
| Project | EP017 | EP276 | N5 |
| Grinding spot diameter | 0.6452 | 0.4591 | 0.5585 |
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Summary:
MAXEP017 showed lower wear tendency in 150N and T22 base oil;
MAXEP276 showed lower wear tendency in 150N and vegetable oil;
N-5 showed the stability of various types of base oil compatibility.
- Performance of compounding with sulfur agent in pure oil
Test conditions: 1% additive +1.5% 40% sulfur content sulfurized olefin in 150N
| Blank sample | EP017 | EP276 | N5 | |
| PB | 88 | 121 | 135 | 114 |
| Wear spot diameter | 0.6762 | 0.4686 | 0.4297 | 0.6043 |
| Coefficient of friction | 0.081 | 0.079 | 0.059 | 0.071 |
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- Performance of mixed with sulfur agent and chlorinated paraffin in pure oil
Test conditions: 1% additive +1.5 40% sulfur content sulfurized olefin + 6% chlorinated paraffin in 150N
| Blank sample | EP017 | EP276 | N5 | |
| PB | 94 | 121 | 181 | 128 |
| Wear spot diameter | 0.5368 | 0.4496 | 0.4418 | 0.8377 |
| Coefficient of friction | 0.081 | 0.074 | 0.057 | 0.081 |
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Summary: MAXEP phosphate amine salt has better additive synergy in the formulation.
5.Anti-emulsification test
Test method: 1% additive is dissolved in 150N, 40ml of test liquid is added into a measuring barrel, 40ml of deionized water is added, and the anti-emulsification condition is recorded by stirring at 1200rpm for 5min at 54 ℃.
| Project | EP017 | EP276 | N5 |
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| Oil-water-emulsion layer (ml) | 40/40/0 | 40/40/0 | 0/0/80 |
| Separation time | 9min | 1min | 30min without separation |
Summary: MAXEP017/276 has excellent oil-water separation performance in pure oil.
- Lubricating oil foam test
Test method: GB/T 12579
Test concentration: 1% additive dissolved in T22
| Project | EP017 | EP276 | N5 |
| 24℃ | 50ml/0 | 20ml/0 | 50ml/0 |
| 94.5 ℃ | 20ml/0 | 20ml/0 | 30ml/0 |
| 24℃ | 50ml/0 | 20ml/0 | 120ml/0 |
Summary: MAXEP017/276 exhibits a lower tendency to bubble.
Product Summary:
Lubricating MAXEP 017/276 phosphate ester amine salt has better lubrication, anti-emulsification and low foaming tendency than traditional phosphate ester anti-wear agents.But more sensitive to base oil and additives,Need a reasonable use of formulators.


























