Organo clay
Organo clay bentonite is mainly made of natural montmorillonite as the main raw material. In industrial fields such as coatings and paints, organic bentonite is generally used as an anti settling agent and thickener. It effectively prevents sedimentation. Yes, pigments do not layer during storage, preventing their precipitation and changing the rheological properties of the entire system, making the entire system have perfect thixotropy, thereby preventing the anti settling of the final pigment.
We have emphasized the use of Organo clay bentonite before. There are two ways. One is to add dry powder directly, and the other is to add pre gel. No matter which way you use, you must give full play to the thickening performance of organo clay bentonite. So you must make them produce good dispersivity. How to maintain its good dispersivity, It is recommended that you add an appropriate amount of polar activator to generate sufficient activity to fully utilize its dispersibility.
You must be wondering which form of polarity activator to use? At present, there are many types of cups on the market for you to choose from. Based on our experience and experimental results, our most ideal recommended polar activators are methanol and ethanol, or propylene carbonate. In some systems, we also recommend customers to add appropriate water to enhance the activity of the entire formula.
The addition of this polar activator can facilitate agricultural mechanization of the surface of the thin film covered by unsubstituted organic cations, thereby reducing the attraction of maintaining stability. Through sufficient grinding, it can promote the penetration of polar additives into the film, reducing its attraction. The application of Organo clay bentonite is very, very extensive.
At present, in addition to the use of organo bentonite in water-based coatings and paints, a large amount of Organo clay bentonite is also used in some solvent based systems of oil-based systems, such as some anti-corrosion coatings, eye-catching paints, road paints, etc., which are used in water-based and oil-based systems.
A large amount of market use has fully proven that after the use of organic clay bentonite, the leveling performance of coatings will be very excellent, and there will be no sagging phenomenon, which also prolongs the settling time of pigments. The application of organoclays bentonite as an anti settling agent in coatings has significantly improved the performance of coatings.
However, due to its darker color and weaker transparency, it is easy to produce scars, increasing the amount of financing needed, Especially since the solid content is difficult to ensure, it is important to consider your dosage appropriately when applying.
Organo clay
Organobentonite has low polarity, medium polarity, high polarity, medium and high polarity, universal system, etc.
After dispersion and activation, the gunshot on the edge of the adjacent sheet is linked by water molecules, which forms a better mutant network structure, and gel appears on the surface.
If there is no water molecule, it is difficult to form a strong marketing structure. Therefore, it is better to make gel first when using organiclay bentonite, and input gel in the pigment feeding stage during the production of coatings.
Usually, low molecular weight tung oil chivalrous acetone can also be used as an activator, but the odor is also relatively low. Now, its role in industrial coatings is that if low odor high products are to be used, propylene carbonate can be directly used. Its flash point is 242 40 degrees, and the odor is very small. The amount of spark machine should be appropriate. If the amount is insufficient, even if it is increased or reduced, the hair flakes cannot be separated completely, In this way, the performance of his organophilic clay bentonite cannot be fully demonstrated.