Updated on: March 7, 2025
Octadecanamide, also known as stearamide, has the chemical formula C₁₈H₃₇NO and the CAS number 124 - 26 - 5. It is a white to off - white powder or granular solid at room temperature. This product typically has a melting point ranging from 108 - 110°C and a density of around 0.96 g/cm³. It is insoluble in water but soluble in hot ethanol, chloroform, and benzene. Our factory - supplied Octadecanamide is of high purity, meeting strict quality control standards to ensure its performance in various applications.
Octadecanamide has a wide range of applications in multiple industries:
It is used as a lubricant and release agent in plastic processing. By adding Octadecanamide to plastics such as polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC), it can reduce friction during processing, improve the surface smoothness of plastic products, and prevent them from sticking to molds, thus increasing production efficiency and product quality.
In the rubber industry, Octadecanamide acts as an internal and external lubricant. It helps in the dispersion of fillers and additives, reduces the viscosity of rubber compounds, and improves the flow properties during rubber processing. It also enhances the surface finish of rubber products and reduces the tendency of rubber to stick to processing equipment.
It is used as a softening agent and anti - static agent in the textile industry. When applied to fabrics, Octadecanamide can make the fibers smoother, reducing friction between them and giving the fabric a soft and silky feel. It also helps to prevent the generation of static electricity, which is especially beneficial for synthetic fibers.
The usage of Octadecanamide depends on the specific application:
For injection molding, extrusion, or blow - molding processes, Octadecanamide can be added directly to the plastic resin during the mixing stage. The recommended dosage is usually between 0.1% - 1% by weight of the plastic resin, depending on the type of plastic and the processing conditions. It should be well - mixed with the resin to ensure uniform distribution.
In rubber compounding, Octadecanamide is added during the mixing process of rubber, fillers, and other additives. The typical dosage is around 0.5% - 2% by weight of the rubber compound. It should be added at an appropriate stage of the mixing process to ensure its effective dispersion and interaction with other components.
When used in textile treatment, Octadecanamide can be formulated into an aqueous emulsion. The fabric can be immersed in the emulsion for a certain period, and then dried. The concentration of Octadecanamide in the emulsion and the treatment time should be adjusted according to the type of fabric and the desired softening and anti - static effects.
A plastic injection molding company was facing issues with high friction during the molding process of PP products. The products had rough surfaces and were difficult to release from the molds, resulting in a high rejection rate. After adding 0.5% Octadecanamide to the PP resin, the friction during molding was significantly reduced. The products had a smooth surface finish, and the release from the molds became much easier. The rejection rate dropped from 15% to less than 5%, and the production efficiency increased by 20%.
A rubber manufacturing plant was producing rubber gaskets. The rubber compound had poor flow properties, which led to incomplete filling of the molds and inconsistent product quality. By adding 1% Octadecanamide to the rubber compound, the flowability of the compound improved significantly. The molds were filled completely, and the g
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