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What is the difference between zinc stearate and calcium stearate?

Views : 387
Author : lql
Update time : 2023-02-06 12:37:04
What is Zinc stearate?
Zinc stearate is an organic substance with the chemical formula C36H70O4Zn, which is a white powder and insoluble in water. 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 vulcanizing activator and softener in rubber. It is non-toxic, pollution-free, non-hazardous, absorbent, and has good adhesion to the skin.
Calcium stearate and zinc stearate are both white powders in appearance, both of which belong to PVC stabilizers, but there are still many differences in their uses.
1. First of all, although both calcium stearate and zinc stearate can be used as lubricants and stabilizers, calcium stearate is mostly used in various plastics processing, while zinc stearate is mainly used in styrene resin, phenolic resin, and amino resin.
2. Although all of them can be used as heat stabilizers for PVC, calcium stearate is mainly used in PVC, while zinc stearate is mostly used on PVC to inhibit the initial coloring and lubrication. There is no vulcanization pollution, but the effect is limited, so it is necessary to use it with stabilizers such as calcium soap and barium soap.
3. Both calcium stearate and zinc stearate can be used as softeners in rubber processing, but calcium stearate can also be used as a plasticizer, which does not affect the vulcanization effect of rubber on the basis of softening, while zinc stearate can be used as a vulcanization activator and softener.
Hazard description of Zinc stearate powder
Zinc stearate is flammable in dry conditions, and its ignition point is about 900. The mixture of dust and air is in danger of explosion in case of open flame, and the lower explosive limit is 11.6g/m3.
Uses of Zinc stearate powder
Zinc stearate can be used as a heat stabilizer; Lubricant; Grease; Accelerator; Thickener, etc. For example, it can be used as a heat stabilizer for PVC resin. Used for general industrial transparent products; When combined with a calcium soap, it can be used in nontoxic products. Generally, this product is mostly used in soft products, but in recent years, hard and transparent products such as mineral water bottles, water pipes, and other products have been used. This product has good lubricity, can improve the phenomenon of scaling and precipitation, and can also be used as a lubricant, release agent, flatting agent for paint, and additive for paint.
Price of Zinc stearate powder
Zinc stearate powder particle size and purity will affect the product's price, and the purchase volume can also affect the cost of Zinc stearate powder. A large amount of large amount will be lower. The price of Zinc stearate powder can be found on our company's official website.
Zinc stearate powder 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 powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective Zinc stearate powder, you are welcome to contact us or inquire any time.
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