It is understood: barium stearate, white or slightly yellow amorphous Powder, melting point >225℃, stimulating effect on central nervous system, soluble in hot ethanol, benzene, toluene and other non-polar solvents, insoluble in water and ethanol. It is heated and dissolved in an organic solvent and becomes a gel when cooled, and is water-absorbent in the air. No sulfide contamination. When encountering strong acid, it decomposes into stearic acid and the corresponding barium salt.
The use scope and functions of barium stearate are as follows:
It can be used as a heat stabilizer for polyvinyl chloride and vinyl chloride copolymers;
p>
It has good long-term heat resistance and lubricity, and its stabilizing effect is greater than that of calcium stearate, but not as good as that of lead stearate. It has good synergistic effect when used together with cadmium soap, zinc soap or epoxy compounds. The general dosage is 0.1% to 2%. Used together with a small amount of lead stabilizer, it can improve the electrical properties of the product;
Mainly used in transparent films, sheets, artificial leather, hard plates and pipes, etc.;
In soft products , often combined with cadmium, cadmium-zinc or cadmium-lead stabilizers;
Often used together with zinc soap in the formulation of sulfur-resistant artificial leather;
Often used with pipes and cable materials Alkaline lead salt and lead soap are combined;
In corrugated plates, they are often combined with cadmium soap, lead soap and alkaline lead salt;
It can also be used as a high temperature resistant Release agents and high temperature lubricants for machinery
微信扫一扫打赏
