Zinc stearate can be described as a white powder, which is insoluble when water is added. There are two methods to make zinc stearate. The first is the water method. The second is the melting method. The water-method produces acidic zinc stearate, while the molten one is alkaline.
This water method is also known to be a wet one. If water is used as the medium, the catalyst will be added in order to adjust a certain temperature and pressure. Add the metal hydrogenxide to make the catalyst. This will replace the metal-ion, and the catalyst is replaced to create the hard fat. It is necessary to use acid in order to create a salt of metal. Further processing is performed on the enzyme and it can then be recycled. It is then centrifuged, dried, ground and weighed to produce an industry standard product that has a mesh number between 200-600. Because the water used in the production is often slightly over-acidic, the end product will be acidic.
In the melting process, also called dry, metal oxide or zinc oxide is added to the moltenstearic (usually in the presence catalysts, as otherwise it will take a very long time for the reaction to occur) and controlled by a temperature and pressure. Response is what determines the stir speed of the stearate. The catalyst is able to completely react the product obtained by dry processing.
It is also known by the name zinc stearate-emulsion or aqueous Zinc Stearate. It may be used as an emulsion, color retention agent (lubricant), release agent, or other purpose. White emulsion with no precipitation.
Emulsions of zincstearate in rubber and plastics can be used in numerous applications, including coatings, inks paints thermal paper, cosmetics, etc. It is divided into three different grades, according to market watchers: paper-grade, paint-grade, and rubber-grade. The papermaking quality has the greatest, with the second being the coating, while the rubber grade is among the most poor.
1. Water-based spray paint: These paints are high quality and have outstanding results.
2, water-based ink : can be used as filling agent, flat agent, stability, antisettling, and waterproof.
3, Textile products: This can be used as an agent for polishing the surface to increase hydrophobicity.
Cosmetic products 4: To enhance the smoothness of your surface, you can use them as lubricants
5. It’s used by the paper industry to provide waterproofing for surface protections like special paper or thermal paper.
6, sanding papers: These can be used for smoothening the surface of grinding. They are also waterproof and anti-wear.
Zinc stearate is an emulsion that can be used for heat stabilization, lubricant and grease as well as to thicken the product. The PVC resin heat stabiliser can usually be made from it. It is used in industrial transparent products and can also be mixed with calcium soap. It can also be used to make non-toxic items. It is used mainly in soft products. In the recent years, there have been hard transparent products used such as mineral water bottles, pipes and other products. This product can be used because of its excellent lubricity. It has the ability to decrease scale formation.
Application zinc stearate-emulsion as waterproofing agent in coatings
It is now possible to develop waterproof coatings that are versatile and high performing. This zinc stearate/emulsion coating has these features:
1. It has no effect on the performance of the surface or the color thereof
2. Surface can be painted or decorated with metallic effects.
3. It provides long-lasting protection against erosion from water, freezing and pollution.
4, self-cleaning power, strong wind, rain and snow can remove the treated dust from the surface. 5, coating thickness is only 515m. The active area of coating is greatly increased. Its cost savings are about 3x that of traditional paint.
6, with 100% permeability, to keep the original permeability from the building substrate.
7. Enhance the thermal insulation and protect the original surface colour. It will meet all market requirements.
The use of zinc-stearate emulsion to lubricate coatings
Material wear can occur from friction. Lubrication helps to alleviate this. The surface coating may be coated with aqueous zinc steelate to lower the friction coefficient.
As friction pairs move against each others, the temperature increase caused by changes in material’s surface properties affects the friction coefficient. It depends on the operating conditions of the friction couple. After being heated, the aqueous Zinc Stearate transforms from a hard-state to an liquid state. As a result, the friction coefficient is reduced.
By rubbing the two materials together, the zincstearate/lubricating coating film sticks to each other. Because of its shear strength, this transfer film transfers onto the dual substrate to form friction. Because it helps reduce friction, Furthermore, it can adhere strongly to the substrate surface with its zinc stearate-emulsion coating. It’s not easy for the film to come off when rubbed. This specific nanofilm can also be created and kept in place so that they are both balanced.
The use of zinc-stearate emulsion for wear-resistant accessoires in coatings
The wear resistance for wear-resistant coatings describes the surface’s capacity to resist friction, wear, abrasion, or erosion. These properties are dependent upon many characteristics of the surface such as hardness of scratch resistance, cohesion and elastic mode.
Wear-resistant coatings that are most commonly used include epoxy and its modifications, polyurethanes as well their modifications, silica and their modification, and silicons. The advantages of polyurethane-elastomers being wear-resistant are well known. But they also come with the drawbacks of poor adhesion and hardness. An epoxy resin has excellent adhesion. However, oxygen resin coating film exhibits a higher hardness but is less resilient to wear than silicone. It is therefore not suitable for practical uses.
Zingystearate emulsion exhibits excellent dispersibility, adhesion strength, and resistance to active wear. When the coating is cured it will improve hardness, wear resistance and toughness. The surface coating can allow the particles to protrude slightly from its surface. But the distribution will be uniform. By protecting the coating from less friction or the entire coating film, it prolongs the durability of the film.
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