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801-C Organic Bentonite Rheological Additive

The 801-C can be easily dispersed into powder with favorable fineness even in very short time. It is a kind of white powder with high gel transparency and good performance in constancy reinforcement, thixotropic and anti-depositing. It has the gelatin capability to the organic solution from medium to high polarity as well as various hydrogenated oil and the composite linking substance, and it is capable of reproducing thixotropic viscosity at a wide range of temperature.
Availability:

Common chemical, physical properties:

Composition

Montmorillonite

derivative

organic         ammonium

Appearance

Light white fine powder

Moisture content (%)

≤ 3.50

Dry powder fineness (through mesh 200)

≥ 99.0

Loss on ignition (900℃ ,%)

30.0~32.5


Usage:

The 801-C product requires the high shear condition and the polarity activator to enhance its dispersion and viscosity reinforcement.


Pre-gel method:

item

8%

10%

Dispersion Condition

Solvent

89.4%

86.7%


801-C

8%

10%

Medium  speed   mix,   slow   addition,   high   speed dispersion for 5~10 minutes

Ethanol 95%

2.6%

3.3%

Dispersed in high speed 15~30 minutes

This pre-gel could be added at any step of adjustment procedure, still the best time is before grinding.


Dry powder addition:

801C could  be added as dry  powder,  it still  needs  polar activator to  improve dispersing and thickening properties.

•    Add resin/solvent

•    Add 801-C, disperse in high speed for 5~10 minutes

•   Add polar activator    (Ethanol or Acetone with 5% water), high speed disperse for 15~20 minutes

•    Add wetting agent, pigment, grind and disperse (whipping, ball-milling, sanding) to the required fineness

•    Add other materials in system, disperse continuously to be average


Applications:

All solvent paint and coatings , sealing compounds, Iubricating grease and cast coatings ,etc.


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Zhejiang Qinghong New Material Co., Ltd. is a professional manufacturer of organic bentonite since 1980.

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