| CAS No.: | 68911-87-5 |
|---|---|
| Formula: | R4n+X(H2O)4{(Al2-Xmgx)[Si4o10](Oh)2}- |
| Color: | White |
| Appearance: | Powder |
| Moisture Content: | 2.5-3.5% |
| Loss on Ignition (900ºC,%): | 36~41 |
| Customization: |
|---|
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Introduction:
The 801-D rheological additive is a high-performance dispersible, self-activated organic ammonium montmorillonite organoclay. It's designed to be the ultimate rheological solution for low to medium aliphatic hydrocarbons, esters, ketones, and certain high-polarity solvent systems used in paints and printing oils. In medium to high-polar solvent systems like xylene, butyl acetate, and cyclohexanone, the 801-D disperses effortlessly without the need for an activator. However, in low-polarity solvents such as 200# solvent oil and white mineral oil, an activator like 95% ethanol (30-40% of the organoclay's weight) is essential. Comparable to Bentone-SD1, this product ensures optimal dispersion and activation in diverse solvent environments.
Application:
801-D is a versatile and dispersible rheological additive suitable for a wide range of applications including antiseptic paints, printing oils, marine coatings, industrial decorative paints, automotive primers, and sealing materials.
Usage:
During the product grinding process, the 801-D rheological additive should be added directly. Under the high-shear forces of grinding or whipping, it will disperse and activate thoroughly. The standard procedure is as follows:
1. Add resin/solvent.
2. Introduce the 801-D additive and whip at high speed for 10-20 minutes.
3. For low-polarity solvents containing 200# solvent oil and white mineral oil, add a polar activator (e.g., 95% ethanol) at 30-40% of the organoclay weight and whip at high speed for 10-20 minutes. For medium to high-polarity solvent systems like xylene or xylene-butyl acetate, the additive disperses readily without the need for an activator.
4. Add a wetting agent and pigment, then grind and disperse (via whipping, ball-milling, or sanding) to achieve the desired fineness.
5. Continuously incorporate other ingredients until a uniform dispersion is achieved.
Dosage
The dosage of the 801-D rheological additive in paint formulations is contingent upon the desired thickening effect, rheological performance, and pigment settling characteristics. The typical dosage range is 0.5-1.5% of the total paint volume. Generally, it can be calibrated based on the usage rates of conventional organoclays, often resulting in lower quantities than those traditionally required.
Common chemical and physical properties:
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