Overview
Modified graphite powder is a refined form of natural or synthetic graphite, treated to enhance specific properties such as conductivity, lubricity, or thermal stability. It is widely used in industrial applications due to its versatility and superior performance compared to unmodified graphite. Common modifications include surface treatments with acids, polymers, or metals to improve compatibility with other materials. These enhancements make it suitable for advanced applications like conductive coatings, high-performance lubricants, and battery technologies.
Physical and Chemical Properties
Modified graphite powder retains the inherent properties of graphite, such as high thermal and electrical conductivity, while gaining additional benefits from its modifications. It is chemically inert, resistant to most acids and alkalis, and stable at high temperatures. The powder's particle size and surface area can vary significantly depending on the intended use. Fine particles are typically used in coatings and composites, while coarser grades may be employed in lubricants or as conductive fillers.
Main Applications
One of the primary uses of modified graphite powder is in lubricants, where it reduces friction and wear in high-temperature environments. It is also a key component in conductive coatings for electronics and anti-static materials. In the energy sector, it serves as an additive in battery electrodes to enhance conductivity and longevity. Additionally, it is used in polymer composites to improve thermal and electrical properties without significantly increasing weight.
Safety and Storage
While modified graphite powder is generally non-toxic, inhalation of fine particles can cause respiratory irritation. Proper dust control measures, such as using masks and ventilation, are recommended during handling. Storage should be in a dry, cool environment, away from strong oxidizing agents. Containers should be sealed to prevent moisture absorption, which can affect the powder's performance in certain applications.
B2B Procurement Guide
When procuring modified graphite powder, buyers should specify requirements such as particle size distribution, purity levels, and the type of modification. These factors directly impact performance in end-use applications. It is advisable to request samples for testing before large-scale purchases. Suppliers with certifications like ISO 9001 can provide additional assurance of quality consistency. Bulk pricing is often negotiable, especially for long-term contracts.
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