Anhydrous Zinc Borate is a zinc borate compound without crystalline water, with the chemical formula 2ZnO · 3B2O3. Compared with common hydrated zinc borate, anhydrous zinc borate exhibits significant advantages in the field of flame retardant materials due to its unique chemical structure and physical properties. This article will explore in detail the advantages of anhydrous zinc borate and its value in practical applications from multiple perspectives.
One of the most significant advantages of anhydrous zinc borate is its extremely high thermal stability. Due to the absence of crystalline water, it does not release water at high temperatures and can maintain stable chemical and physical properties under high-temperature processing and usage conditions.
Suitable for high-temperature materials: In high-temperature engineering plastics (such as polyamide, polyester, etc.) and ceramic materials, anhydrous zinc borate can provide long-lasting flame retardant protection without failure due to high-temperature decomposition.
Processing stability: During high-temperature injection molding, extrusion and other processing processes, anhydrous zinc borate will not affect the material's properties due to thermal decomposition.
Anhydrous zinc borate has efficient flame retardant properties, and its flame retardant mechanism mainly includes:
①. Coverage function: Decompose at high temperatures to form a B2O3 glassy film, which covers the surface of the material, isolates oxygen and heat, and prevents flame spread.
②. Inhibition of chain reaction: In halogen containing materials, anhydrous zinc borate reacts with halogen compounds to generate ZnX2 and HX, capturing free radicals generated during combustion and interrupting the combustion chain reaction.
Efficient flame retardant: Anhydrous zinc borate can significantly improve the flame retardant level of materials and reduce the risk of fire.
Smoke suppression function: During combustion, anhydrous zinc borate can reduce smoke production and improve fire safety.
Anhydrous zinc borate not only has flame retardant properties, but also has multiple functions, which can significantly improve the comprehensive performance of the material.
①. Enhance mechanical performance: In engineering plastics and rubber, anhydrous zinc borate can improve the material's mechanical strength, wear resistance, and impact resistance.
②. Anti corrosion performance: In coatings and wood treatment, anhydrous zinc borate can provide anti-corrosion protection and extend the service life of materials.
③. Electrical properties: In electronic and electrical materials, anhydrous zinc borate can improve the insulation performance and arc resistance of the material.
Anhydrous zinc borate has been widely used in various fields due to its excellent properties:
①. Engineering plastics: Used for high-temperature engineering plastics such as polyamide, polyester, polypropylene, etc., providing efficient flame retardant protection.
②. Rubber products: In natural rubber and synthetic rubber, anhydrous zinc borate can improve flame retardancy and mechanical properties.
③. Fireproof coating: Used for building and industrial fireproof coatings, providing long-lasting flame retardant and anti-corrosion protection.
④. Ceramics and glass materials: In ceramic glazes and glass materials, anhydrous zinc borate can improve thermal stability and flame retardancy.
⑤. Electronic and electrical materials: In high-temperature electronic and electrical materials, anhydrous zinc borate can improve flame retardancy and electrical properties.
Although the production cost of anhydrous zinc borate is relatively high, its excellent performance and multifunctionality make it highly cost-effective in practical applications.
Long term protection: Anhydrous zinc borate can provide long-lasting flame retardant and anti-corrosion protection, reducing material maintenance and replacement costs.
Sustainable development: The environmental characteristics of anhydrous zinc borate meet the requirements of sustainable development and help promote the application of green materials.
In the future, research on anhydrous zinc borate will focus on the following directions:
①. Nanotechnology: Improving dispersibility and flame retardant efficiency through nanotechnology.
②. Multi functional composite materials: Develop new composite materials that combine flame retardancy, reinforcement, antibacterial and other functions.
③. Green production process: Optimize production processes, reduce costs, and minimize environmental impact.
Anhydrous zinc borate has broad application prospects in various fields such as engineering plastics, rubber, coatings, ceramics, etc. due to its high thermal stability, excellent flame retardant properties, environmental friendliness, non toxicity, and multifunctionality. Through technological innovation and process optimization, anhydrous zinc borate will play a more important role in the field of flame retardant materials in the future, providing strong guarantees for the safety and environmental protection of materials.
