Zinc stearate can be described as a white powder, which is insoluble when water is added. There are two methods to produce zinc stearate. The water method is the preferred method, and the melting method is another. The water-method produces acidic zinc stearate, while the melting method creates 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 or pressure. Add the metal hydrogenxide to make the catalyst. This will remove the metal Ion from the medium 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, to produce an industry standard product that has a mesh number between 200 and 600 mesh. Because the water used in the production is often slightly over-acidic, the end product will be acidic.
In the melting process, also known by the dry method, metal oxide or zinc oxide is added to the moltenstearic (often in the presence a catalyst as otherwise it will take a very long time for the reaction to complete) at specific temperatures and pressures. 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 with zinc stearate, which are made of zinc, can be used in numerous applications, including in plastics. According to market watchers, you can divide it into three kinds: paper-grade, paint-grade, and rubber-grade. The papermaking quality has the greatest, while the coating is second and rubber is third.
1. Water-based spray paint: These paints are high-quality and have outstanding results. They can improve the water repellency of coating surfaces, increase the paint film feel, and provide transparency.
2, water-based ink : can be used as filling agent, flat agent, stability, antisettling, waterproof.
3, textile products: This can be used to polish the surface in order to increase its hydrophobicity.
4 Cosmetic products: To enhance the smoothness and smoothness of the surfaces, you can use them as lubricants.
5. Industry: Use it as a waterproofing agents for water-resistant surface coatings, such as special or thermal paper.
6, sandpaper: It can be used in grinding as an aid to improve the surface.
Zinc stearate is an emulsion that can be used for heat stabilization, grease, promoter and thickener. The PVC resin heat stabiliser can usually be made from it. It can be mixed with calcium soap in transparent general-purpose industrial products. It can also be used to make non-toxic items. This product is normally used in soft items. These products include mineral water bottles, water pipes, as well as other hard transparent products. This product can be used because of its excellent lubricity. It helps to prevent scale formation.
Zinc Stearate Emulsion is used in coatings
It is now possible to develop waterproof coatings with high performing and flexible properties. This zinc stearate/emulsion coating has these features:
1. The treated surface will not be affected in terms of performance or color.
2, The surface can be colored or decorated with metallic effects.
3. It provides long-lasting protection against erosion from water, freezing, and air pollution
4. High-pressure water and strong wind can remove the treated dust from the surface.
6, with 100% permeability, to keep the original permeability from the building substrate.
7, increase the thermal insulation and provide UV protection to preserve original surface colors. It will meet all market requirements.
The use of zinc-stearate emulsion to lubricate coatings
Wear can occur from friction. Lubrication will help reduce this wear. You can make a selflubricating material by adding aqueous Zinc Stearate to your surface coating.
As friction pairs move against each others, the friction coefficient changes due to the temperature change in materials. It is affected by the work 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 zinc-stearate emulsion and lubricating coat film are transferred to each other to form a transfer coating. Because it helps reduce friction, Furthermore, it can adhere strongly to the substrate surface with its zinc stearate and emulsion coating. It’s not easy for the film to come off when it gets rubbed. This specific nanofilm can also be provided permanently and stably so that its formation and consumption are equal.
The use of zinc-stearate emulsion for wear-resistant auxiliaries within coatings
The wear resistance for wear-resistant coatings describes the surface’s capability 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, silicones, and any modifications to them, as well as polyurethanes. 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, the Oxygen resin coating film exhibits a higher degree of 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. Even though the distribution of the particles is uniform, By protecting the coating from less friction or the entire coating film, it prolongs the durability of the coating.
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