Organoclay Rheological Additive CP-720A Purified And Modified Used for Grease Based on Synthetic Oils

CP-720A

CP-720A is a kind of purified and modified organoclay rheological additive, designed especially for using in Grease based on synthetic oils such as vegetable oil, polyester oil. It has high gelling efficiency, fine thixotropy and perfect anti-settling.

Composition                               Organic derivative of a montmorillonite clay

Appearance                                Fine powder, light yellow

Moisture content (105℃,2hr)         ≤3.5%

Loss on ignition (1000℃)            34%-36%

Bulk density                                 0.42g/cm3

Fineness (<74μm, %)                  ≥98%

CP-720A is used in the following applications:

Ÿ   Grease Lubricant(the base oil is synthetic oil such as middle-high viscosity petroleum, mineral oil, diester oil, polyester oil, vegetable oil etc.)

Ÿ   Wood coating

When it is used in Grease Lubricant, polar activator is needed. Polar activator is acetone/water(95/5). The dosage of activator is 20%-30% of the weight of CP-720A. And also high shear can promote the dispersing of CP-720A.

Adding procedure as follows:

1.     If condition permits, heat the base oil to 60~70℃

2.     Add CP-720A while stirring, addition level is 7%-10% of the total formulation. Stir  5~10minutes

3.     Add polar activator, addition level is 2%-3% of the total formulation. Then add other additives, stir 25~30minutes.

4.     Use pump to help it pass colloid grinding and homogenizer.

5.     Deair, filtrate, pack.

Note: With High-speed dispersant of grinding machine, and properly prolong the dispersing time, better gelatin performance can be reached.

The Lubricanting grease which uses organoclay as thickener will own high dropping point, thus can be used under high temperature and presents good impermeability and water resistance.