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Dongguan Hanwei Technology Co., Ltd. is a high-tech enterprise integrating R&D, production and sales. Its products are mainly used in petrochemical, rubber and plastics, coatings, papermaking and other fields. The main products are zinc stearate , calcium stearate , magnesium stearate , other fatty acid salts, fatty acid esters, water-based zinc stearate, water-based calcium stearate, wood-plastic lubricants, PE wax, wax emulsion and Various rubber additives, etc.
Chemical Composition and Structure
Zinc stearate is chemically composed of zinc ions (Zn2+) and stearate ions (C18H35O2-). It has a molecular formula of Zn(C18H35O2)2 and a molar mass of approximately 632.3 g/mol. Structurally, it forms a crystalline lattice with the zinc ions surrounded by stearate ions. Understanding its chemical composition and structure provides insights into its properties and applications.
Applications in the Plastics Industry
In the plastics industry, zinc stearate finds wide use as a lubricant, heat stabilizer, and anti-blocking agent. It improves the processability of plastic materials, reduces extrusion pressure, and prevents surface defects. Additionally, it acts as a heat stabilizer, protecting the plastic from degradation during high-temperature processing. Zinc stearate is particularly beneficial in the production of PVC, polyolefins, and other thermoplastics.
Environmental and Safety Considerations
While zinc stearate is generally considered safe for most applications, it is important to follow proper handling and safety precautions. Inhalation of large amounts of zinc stearate powder may cause respiratory irritation. Additionally, it is advisable to prevent its release into water bodies as it may have adverse effects on aquatic organisms. Understanding and adhering to environmental and safety guidelines is essential for the responsible use of zinc stearate.
Introduction to Zinc Stearate
Zinc stearate is a white, powdery substance that is derived from a combination of zinc and stearic acid. It has a wide range of applications in various industries due to its unique properties. This paragraph introduces the topic of zinc stearate and its significance.
Frequently Asked Question
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Yes, zinc stearate can be used in food packaging materials. It is considered safe for indirect food contact applications and is commonly used as a release agent or anti-caking agent in food packaging processes.
Zinc stearate is generally considered to be environmentally friendly. It is biodegradable and does not persist in the environment. Additionally, its non-toxic nature and low risk of bioaccumulation make it a preferred choice over certain alternative additives in many applications.
Its primary function is to provide specific technical properties rather than serve as a significant source of dietary zinc.
Zinc stearate is considered safe for use in cosmetics and personal care products. It has a long history of use and is generally recognized as safe by regulatory authorities.