Why zinc stearate can be used as a heat stabilizer
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Author : Lzh
Update time : 2023-02-04 14:27:11
What is zinc stearate? Property ofzinc stearate: white, fine powder, greasy, slightly pungent odor. Density (g/mL, 25/4 ℃): 1.0953. Melting point (℃): 130, self-ignition point (℃) 900. Solubility: insoluble in water, alcohol, and ether. Soluble in benzene, turpentine, and other organic solvents. It can be used as a non-toxic polyvinyl chloride stabilizer with low initial coloration and good weather resistance. It is not easy to use alone because it has a significant catalytic effect on the degradation of PVC. After some time, It can make the product change color rapidly. It can be used with barium cadmium soap for general soft products. The dosage of this product is not easy to be too large, but it can be appropriately increased when used with epoxy compounds and phosphorous esters.
Product classification of zinc stearate It can be divided into fixed zinc stearate and aqueous zinc stearate. There are two production methods of zinc stearate: water and melting. Generally speaking, zinc stearate produced by the water method is acidic, and zinc stearate produced by the melting method is alkaline. The water method is also called the wet method. Under the condition of the water as the medium, add a catalyst, control a certain temperature and pressure, and then add metal hydroxide to replace metal ions on the catalyst through a catalyst. The stearic acid replaces the catalyst itself to achieve the purpose of generating metal salt. The catalyst is processed and recycled. The stearate is centrifuged, dried, and ground to obtain products with a mesh number of 200-600 that meet the industry standard. Generally, the stearic acid produced by the water method will be slightly excessive, so the finished product will be acidic after the reaction. The melting method is also called the dry method, which means that metal oxide (zinc oxide) is directly added to the molten stearic acid (Of course, in the presence of a catalyst, otherwise the conversion rate of the reaction will be very long and long.) Control temperature, pressure, and stirring speed to obtain stearate through reaction. Due to the presence of a catalyst, the general reaction results of the products produced by the dry method can get a complete reaction, and the metal oxide is slightly excessive, so the products are alkaline when tested.
Storage and transportation characteristics of zinc stearate Precautions for operation: closed operation, local ventilation. The operators must be specially trained and strictly abide by the operating procedures. It is recommended that the operators wear self-priming filter dust masks and chemical safety goggles. Keep away from kindling and heat sources. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Avoid dust generation. Avoid contact with oxidants and acids. Handle with care; protect the packaging and containers from damage. Equip with corresponding types and quantities of fire-fighting equipment and leakage emergency treatment equipment. Empty containers may contain harmful substances. Precautions for storage: Store in a cool and ventilated warehouse. Keep away from kindling and heat sources. Store separately from oxidants and acids. Do not store them together. Provide fire fighting equipment of corresponding types and quantities. The storage area should be equipped with appropriate materials to contain leakage.
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 any time.
