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Uses and manufacturing methods of oleic acid amide

Uses and manufacturing methods of oleic acid amide

作者: Release Date: 2018-05-02 Author: Click:

Oleic acid amide (English name Oleic acid amide), also known as Oleamide, also known as cis-9-octadecenoamide (cis-9-Octadecenoamide), is an unsaturated fatty amide, is a white crystal or Granular solid, polymorphic structure, and odorless, it can reduce the friction between the internal friction film and the conveying equipment during the processing of resin, etc., simplify the operation of the final product, thereby increasing the production volume. For example, it can be used as a lubricant in the processing of polyethylene, which can reduce the melt viscosity of the resin particles and improve the fluidity.


Uses of oleic acid amide

Oleic acid amide has superior properties and is widely used. It can be used as a release agent for polyolefin injection molding, which makes it easy to release, thereby increasing the yield and improving the surface gloss of the product. Used as lubricant, antistatic agent, anti-caking additive for polyolefin, polyvinyl chloride, polystyrene, phenolic resin, amino resin, polyester, acetate fiber, nitrocellulose, etc. Used as a dye dispersant, lubricant, release agent, etc. for dense color master batches such as polyolefins and synthetic fibers and cable materials. In the processing plant, it must be added in the form of mixture or master batch to ensure uniform quality. Adding 0.1 ~ 0.5% oleic acid amide to the low-density polyethylene film material can not only improve the antistatic and lubricating properties, but also improve the moisture resistance performance, significantly reduce the friction and adhesion resistance, and can effectively prevent the inter-granularity The adhesion between the block and the film significantly improves the film blowing efficiency, makes the surface of the finished film good, and prevents dust from accumulating on the surface. Used as a modifier for plastic inks. Adding 2 to 5% oleic acid amide to the polyamide ink can improve the printing performance and lubricity of the ink, and increase the anti-scratch, anti-offset and abrasion resistance of the print. Destructive. Improve the spread and adhesion of ink on the surface of printed matter, make the print clear, firm and bright in color. It can also be used as paints, carbon paper, and other wax products, as a compounding agent for fiber oils, as a lubricant for metal protective films and surfaces, as a stabilizer for melamine products, as a dispersion stabilizer for aluminized electrophoretic coatings, and as an oil drilling aid. Wait.


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Method for producing oleic acid amide

Industrially, oleic acid and anhydrous ammonia are used for the acylation reaction in the presence of a catalyst. The commonly used catalysts are boric acid, activated alumina, and silica gel. The reaction first generates ammonium oleate, which is dehydrated at an elevated temperature to produce oil. Acid amide, the reaction formula is as follows:

C17H33COOH + NH3 → C17H33COONH4

C17H33COONH4 → C17H33CONH2 + H2O

The reaction temperature is 170 ~ 200 ℃, the pressure is 0.3 ~ 0.7mPa, the reaction time is 10 ~ 12 hours, the rate of ammonia addition is controlled, the reaction pressure is maintained, and the water and unreacted ammonia generated by the reaction are continuously discharged to complete the dehydration reaction of the ammonium salt. The oleic acid amide product formed after the reaction is dissolved in ethanol under stirring, and a small amount of activated carbon and antioxidant are added to decolorize it. The activated carbon is filtered off and purified by freeze crystallization and recrystallization. Larger production scale is suitable for continuous production, small-scale production can also be intermittent production.

The use of oleic acid extracted from vegetable oil as a raw material has a lower odor than oleic acid amide produced from oleic acid extracted from animal fat, and has better anti-yellowing and anti-caking ability.


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Keywords: oleic acid amide , oleic acid amide wholesale , oleic acid amide supply

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