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Product Description

Product Introduction

JDVII-6831 is a solution of polymethacrylate in a highly refined mineral oil. It is a viscosity index improver specially designed for hydraulic fluids with high shear stability. It is suitable for the modulation of hydraulic oil, especially low-temperature hydraulic oil, and can effectively improvesthe viscosity indexof the oil. Under the premise of ensuring shear stability., it has the double effects of improving the viscosity index and reducing the pour point, and effectively saves the product formula cost.

Product Performance

With narrow molecular weight distribution, it has good low temperature fluidity, excellent shear stability, and can effectively improve the viscosity index and inhibit wax crystallization.

Especially for hydrotreating base oil, it has excellent pour point depressant effect.

It has excellent filtration performance and anti-emulsification performance.

Physical Properties

Item

Typical Value

Kinematic viscosity (100℃) / mm2/s

1180

Flash point / ℃

170

Total acid number / mgKOH / g

0.12

Chroma

<0.5

Shear stability index P-SSI 30 passes / %

4.7

Thickening capacity, mm2/s

6.0 *

* Noted: Add 10% viscosity index improver to HVI 150 base oil to make thickening oil, and measure its viscosity increase value at 100℃, which is the thickening capacity.

Recommended Dosage

Recommended dosage: The recommended dosage for JDVII-6831 is 1 to 10%, depending on the actual application. For details, please consult our additive application engineer.

Packing And Precautions

Net weight: 170 Kg/drum, packed in 200 liter metal drum. Non-flammable, non-explosive, non-corrosive.

Please refer to SH/T0164 for transportation, storage and handling. Best Blending temperature: 50-60℃. Storage temperature below 60℃, avoid repeated heating, keep away from heat.

For more physical and chemical indicators, please refer to the following detailed data.

The evaluation is carried out according to SH/T0622-2007 standard.

Plan 1

10% (mass fraction) JDVII-6831 is added into Dalian HVI150 base oil, heated to 60℃~70℃ , and stirred evenly to obtain the sample. The shear stability index (diesel injector method), thickening ability, low temperature dynamic viscosity, pour point and other performance parameters of the sample are deter- mined.

Sample Name

Item

Typical Value

Test Method

HV150

Low temperature dynamic viscosity (-20℃) , mPa.s

2250

GB/T6538

Pour Point / ℃

-12

GB/T3535

Kinematic viscosity (100℃) , mm2/s

5.13

GB/T265

 

Kinematic viscosity (100℃) , mm2/s

1250

GB/T265

Thickening capacity (glue liquid), mm2/s

6.2

SH/T0622

Diesel Injector Shear / SSI

4.7

30 passes

Diesel Injector Shear / SSI

8.6

250 passes

KRL / SSI

45

NB/SH/T0845

Low temperature dynamic viscosity (-20℃) , mPa.s

2650

GB/T6538

Pour Point / ℃

-30

GB/T3535

Plan 2

Using imported hydraulic oil compound, a certain proportion of imported ERTO4 and GS500N-4 base oil and pour point depressant, and using viscosity index improver JDVII-6831 and Evonik V8-310 respectively to make HV 46, the kinematic viscosity, viscosity index, pour point, air release value, demulsification, liquid phase corrosion and shear stability of the oil are measured.

Blending scheme

 

Base Oil

Complex agent

VII

Pour Point Depressant

1

ETRO4/GS500N-4=65/35

HITEC 521

JDVII-6831

JDPPD-8248

2

ETRO4/GS500N-4=65/35

HITEC 521

V8-310

JDPPD-8248

Amount

100%

0.85%

7%

0.2%

Experimental analysis results

Analyze Projects

1

2

Test Methods

Kinematic viscosity (40℃) , mm2/s

49.03

45.16

GB/T 265

Kinematic viscosity (100℃) , mm2/s

9.645

8.875

GB/T 265

Viscosity index

186

181

GB/T 1995

Pour Point / ℃

-42

-36

GB/T3535

Air release value (50℃) , min

3.0

3.0

SH/T 0308

Demulsibility (40-37-3) 54℃, min

5

6

GB/T 7305

Liquid phase corrosion method B

No Rust

No Rust

GB/T 11143

Kinematic viscosity of 40℃ change after 250 passes, %

0.87

1.35

SH/T 0103

Plan 3

In dalian HVI150 base oil, 1%, 2%, 3%, 6%, 10% (mass fraction) JDVII-6831 were added respectively, heated to 60℃~70℃, and stirred evenly to obtain the sample, and the viscosity index parameters of the oil sample were determined.

Analysis Results of Viscosity Index Test

Item

Amounts

Kinematic viscosity mm2/s

Viscosity index

Increase Value

100℃

40℃

HV150

0 %

5.13

30.11

97

 

1 %

5.66

32.78

112

15

2 %

6.15

35.53

121

24

3 %

6.78

38.29

135

38

6 %

8.76

47.48

166

69

10 %

10.83

56.82

186

69

Conclusion

JDVII-6831 can be used in low temperature hydraulic oil blending, save the amount of pour point depres- sant, and effectively improve the viscosity indexof oil. This product is processed by advanced technology. Compared with advanced products at home and abroad, it is environmentally friendly and has better economy under the prem- ise of ensuring thickening ability and shear stability. It is the best choice of viscosity index improver.

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  • 2(1736490750097).jpg
  • 1(1736490749984).jpg

JDVII-6831 Polymethacrylate (PMA) VII

JDVII-6831 is a solution of polymethacrylate in a highly refined mineral oil. It is a viscosity index improver specially designed for hydraulic fluids with high shear stability. It is suitable for the modulation of hydraulic oil, especially low-temperature hydraulic oil, and can effectively improvesthe viscosity indexof the oil. 

Classification：

Viscosity Index Improver

WhatsApp

info@jdlubricant.com

+86 16639322618

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