Locate：Home > Product > Organic Bentonite Rheological Additive PYY-A40
PYY-A40 is an organic derivative of a bentonite clay with high purity, easily dispersible and
self-activated. This highly efficient rheological additive is designed for intermediate to some part of
high polarity organic systems. The proper solvent can be aliphatic hydrocarbon, esters, ketone, and
benzene. If using the moderate to high polarity solvent such as the xylene, xylene-esters (e.g. butyl
acetate), or xylene-ketone (e.g. acetone), the PYY-A40 can add as a dry powder for in-situ
dispersion and activation without the addition of activator. If using the low polarity solvent such as
200# solvent or white oil, the V need the help of activator for fully dispersion and
activation. The activator can be 95% alcohol, typical levels range between 30-40% activator based on
organic bentonite weight.The performance of PYY-A40 is similar to BENTONE SD-2, CLAYONE
APA, TIXOGEL-MP250.
APPLICATIONS
PYY-A40 organic bentonite used as thickener, anti-settling agent and rheological agent widely employ in the field of marine paint, primer paint, anti-corrosion paint, asphalt paint, adhesive glue,seal gum, greases and so on.
INSTRUCTIONS FOR USE
PYY-A40 can be added directly to the resin/solvent blend and is thoroughly mixed in room temperature, the pigments and fillers are then added and dispersed with high shear or grind.The process can be used as follows:
A, resin blend with solvent
B, add organic bentonite and thoroughly mixed for 10-20 minutes.
C, if used in low polarity solvent such as 200# solvent, white oil, add chemical activator and mixed for 10-20minutes, The activator can be 95% alcohol, typical levels range between 30-40% activator based on organic bentonite weight.
D, the pigments and fillers are then added and dispersed with high shear for a few minutes.
E, Complete dilution
Remark: if used in long oil alkyd resin, propylene carbonate can be the appropriate activator.
LEVELS OF USE
The level depends on the system in which is to be used. The typical levels are between 0.5 and 1.5%
PYY-A40 organic bentonite based on total system weight.
THE MAIN PRODUCT QUALITY INDEX
|
INDEX TYPE |
PYY-A40 |
|
COMPOSITION |
Organic derivative of a bentonite clay |
|
COLOR/FORM |
Off white，finely divided powder |
|
DENSITY，g/cm 3 |
1.70 |
|
MOISTURE，% |
≤3.50 |
|
FINENESS（-200mesh） |
≥98.0 |
|
Bulk density，kg/m 3 |
≤380 |
|
LOI(900℃，%) |
37.0-40.0
|
Storage and package:
Leather bags are used for the outer package, and the bag uses the double layer packing of the
polyethylene film, or the paper bag. The weight is usually 25±0.25kg, or according to the user packing
demands. Keep in dry places. When the temperature is 0~30℃, the quality is valid for 24 months.
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