Bentonite powder exhibits several distinctive characteristics that make it valuable across various industries. One of its key features is high water absorption capacity, allowing it to swell significantly when exposed to moisture. This swelling property varies depending on the type of bentonite, with sodium bentonite typically showing greater expansion than calcium bentonite.
It also has excellent adsorption capabilities, enabling it to attract and hold onto various substances, including oils, organic compounds, and heavy metals. This makes it useful in applications requiring purification or separation processes. The fine particle size of bentonite powder contributes to its large surface area, further enhancing its adsorption efficiency.
Another notable characteristic is thixotropy, meaning it forms a gel-like structure when at rest but becomes fluid when agitated. This property is beneficial in drilling fluids, where maintaining a stable viscosity under different conditions is crucial. Bentonite powder also demonstrates good plasticity, allowing it to be shaped and molded easily when mixed with water.
Its chemical stability is another advantage, as it can withstand a range of temperatures and pH levels without significant degradation. This stability ensures consistent performance in various industrial environments, from high-heat foundry processes to acidic or alkaline solution treatments.
Post time: Jul-18-2025