Organoclay Oil Drilling CP-250A
CP-250A is a new style of organo clay rheological additive made from bentonite COUNTER TO BENTONE 150.It is used in solvent and resin systems covering low polarity to high polarity range.
Advantages
High purity, low silica content.
Excellent anti-settling character even for heavy pigment in solvent.
Fine dispersion and particle size.
Good self-activated property.It can eliminate polar activator.
High yield point in various oils for oil drilling;Stable performance even in high temperature.
Wide application range including low polarity to high polarity systems.
Typical properties
CompositionOrganic derivative of a montmorillonite clay
AppearanceFine powder, light yellow
Moisture content (105ºC, 2hr)≤3.5%
Loss on ignition max, %(1000ºC)(48±2.5)%
Bulk density0.40~0.60g/cm3
Fineness (<74μM, %)≥99%
Dispersion fineness (μM)≤8
Application
Paints including top grades paint, decorative paint, industrial paint.
Oil drilling mud.
Grease, especially recommended in greases based on synthetic oils such as vegetable oil and polyester oil etc.
Sealants and adhesive.
Using
It can be added directly in powder under high shear condition.Addition level is commonly 0.1%~1.0% (7%-10% in greases) of total formulation by weight.Polar activator is required to achieve better performance.The addition procedure is suggested as below.
Add resin in solvent.
Add CP-250A under slow agitation.
Disperse under high speed for 10-15 minutes.
Add polar activator (95% ethanol or 95% acetone)
Disperse under high speed for 10-15 minutes.
Add wetting agent and other additive.
Grinding and next procedure.
If to make pre-gel, better efficiency can be achieved.Addition level in pre-gel is 8%-10% of total pre-gel in weight.Pre-gel procedure is as below.
Add solvent or solvent mixture.
Add CP-250A under slow agitation.
Disperse under high speed for 5-10 minutes.
Add polar activator.
Disperse under high speed for 10-15 minutes.
If in low and medium polarity solvent, small dosage polar activator is suggested.Polar activator is suggested to be ethanol/water (95/5)or acetone/water (95/5).Dosage of polar activator is about 10%-35% of CP-250A by weight.
Note:The suggested addition level of our organoclay and polar activator is based on our lab testing.Exact dosage for detail formulation should be based on user's testing.
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