Why zinc stearate can be used as paint drying agent?
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Author : Lzh
Update time : 2023-02-06 16:11:46
What is zinc stearate? Zinc stearateis an organic compound with a chemical formula of CHO ₄ Zn. It is a white powder and insoluble in water. It is mainly used as a lubricant and release agent for styrene resin, phenolic resin, and amino resin. At the same time, it also has the function of curing active agents and softeners in rubber. Zinc stearate is a white light fine powder, insoluble in water, ethanol, and ether, and soluble in hot ethanol, turpentine, Benzene, and other organic solvents and acids. Zinc stearate is heated and dissolved in organic solvents, and then becomes colloidal when it is cooled. It is decomposed into stearic acid and corresponding zinc salt when it is exposed to strong acids. It is lubricious, hygroscopic, non-toxic, slightly irritating, non-polluting, and non-hazardous. Zinc stearate is mainly used in the plastic and rubber industries, and is used as a release agent and lubricant due to its good compatibility.
Application field of zinc stearate It is used in the pharmaceutical industry, the preparation of curing oil and lubricant, and also as a paint drying agent. It is used in the processing of PVC and rubber non-toxic products. It has a synergistic effect with calcium stearate and barium stearate, and can effectively improve the photothermal stability of PVC and rubber products. The dosage in PVC processing is usually less than 1 part; It is used for rubber product mold, PP, PE, PS, EPS polymerization additive, and pencil lead manufacturing. The general dosage is 1~3 parts.
Identification of zinc stearate 1. Take about 25g of this product, heat 200ml of water and 60ml of dilute sulfuric acid, and heat it to separate the fatty acid reservoir for standby; The water intake layer is acidified by adding dilute sulfuric acid, adding 1 drop of 0.1% copper sulfate solution and several drops of mercuric ammonium thiocyanate test solution, and purple precipitation is generated 2. Take the oil layer under the identification (1) and wash it with boiling water until the washing solution does not show a sulfate reaction, collect the oil layer in a small beaker, cool it, discard the water layer, heat it to melt the oil layer, filter it while it is hot, and dry it at 105 ° C for 20 minutes. Determine the freezing point according to the law (general rule 0613), which should not be less than 54 ° C.
Price of zinc stearate Zinc stearate particle size and purity will affect the product's price, and the purchase volume can also affect the cost of zinc stearate. A large amount of large amount will be lower. The price of zinc stearate can be found on our company's official website.
Zinc stearate supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including zinc stearate, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective zinc stearate, you are welcome tocontact usor inquire at any time.
