Preparation method and application of water-based stearamide

Overview of Stearic Acid Amide Emulsion

Stearic acid amide is a white emulsion, the product is non-toxic, pollution-free, harmless and environmentally friendly. It is easy to disperse in water and has the characteristics of ultra-fineness,low viscosity and good dispersibility.

Stearamide is also called stearamide. Its chemical formula is C17H35CONH2. Stearamide is insoluble in water and slightly soluble in organic solvents at room temperature.It can improve the dispersion effect and affinity of dyes and pigments.

Good adhesion,lubricity and mold release, no moisture absorption and other advantages. It is miscible with paraffin wax.Stearic acid reacts with ammonia to form ammonium salt, which is then dehydrated to obtain the final product. It does not absorb moisture, has good smoothness, can improve the dispersion effect of pigments and dyes, and has lubricity and mold release properties. Used as surface active agent, fiber oil agent, release agent, polyvinyl chloride and urea resin lubricant, pigment ink and color crayons mixing agent.

Stearamide can be used as a sensitizer and slip agent in thermal paper coatings,as well as a slip agent and anti-blocking agent in polyolefin films. Stearates are based on fatty saturated linear monocarboxylic acids derived from natural vegetable oils.

How is stearic acid amide emulsion produced?

Since stearamide is insoluble in water, emulsifiers and dispersants need to be added in the process of preparing water-based stearamide emulsion to achieve the dispersion effect. Even if the existing water-based stearic acid amide emulsion is added with an emulsifier and a dispersant, the dispersion effect is still very poor, it is easy to precipitate, and flocculation and stratification will occur after long-term storage. In addition, the existing method requires high-speed stirring and grinding under heating conditions in the process of preparing the stearamide aqueous emulsion, and the production process is complicated and the production cost is high.

Preparation method of water-based stearamide

First add stearamide and emulsifiers A and B into water and stir for 60 minutes (stirring speed 2500r/min),then add defoamer and preservative and stir for 40 minutes (stirring speed) for 2500r/ min) A water emulsion of stearic acid amide is obtained.The prepared water-based stearamide emulsion had a solid content of 41.7% by weight and a viscosity of 146 mPa·S; the water-based stearamide emulsion was centrifuged at 20000 r/min for 30 minutes,and no delamination was seen.Stearic acid amide emulsion did not flocculate or delaminate after being placed at 20-35°C for 3 months.

Application of Stearic Acid Amide Emulsion

Stearamide is used as a lubricating release agent for plastics such as polyvinyl chloride and polystyrene,and has excellent external lubricating effect and release performance.

As an anti-blocking agent for polyolefin films,stearamide is usually used in combination with oleamide erucamide.

Compared with the commonly used inorganic anti-sticking agent (silica),stearamide has the characteristics of not affecting the transparency of the product.Used as internal release agent and lubricant for synthetic rubber or natural rubber, improve rubber processing agent, and endow products with good gloss.

Stearic acid amide ultrafine water dispersion is used as a sensitizer for thermal paper.

Stearamide ultrafine water-based dispersion is used as textile waterproofing agent,fiber softening agent, antistatic agent,wetting agent,and fixing aid.

Stearic acid amide emulsion price

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Stearic acid amide emulsion supplier

As a global supplier of stearic acid amide emulsion,Tanki New Materials Co.,Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides,nitrides,single metals,etc.), high-purity targets,functional ceramics and structural devices,and provides OEM services.