Brand Name: | qingyun |
---|---|
Place of Origin: | China (Mainland) |
Quick Details
Specifications
Introduction of bentonite
Bentonite and bentonite.Bentonite is refined from natural bentonite gel inorganic minerals.Bentonite is generally refers to a kind of is mainly composed of montmorillonite clay rock.Bentonite montmorillonite as the main effective components, content is about 90%, its molecular weight is about 720, is a tiny flat piece or page.When bentonite soak in hot water, each sheet body is spread out, the formation of homogeneous colloidal suspension.Per gram sodium base bentonite has a surface area of 750 square meters.Bentonite is a family of montmorillonite, bentonite collection often assumes the earthy, which often contains minerals such as quartz, feldspar, dolomite, calcite, so it is also known as bentonite (also known as bentonite, also known as the volcanic clay).
the characteristics of bentonite
1, adsorption, bentonite adsorption can be divided into physical adsorption and chemical adsorption and ion exchange adsorption three types.
2, swelling: the swelling of bentonite in water, this natural phenomenon is the main reason of the bentonite mineral crystal layer spacing increasing, water molecules into the mineral crystal layer, also causes the expansion of the bentonite and bentonite mineral cation exchange.
3, mud making sex: the mud making rate is bentonite particles dispersed in water to form suspension, and the apparent viscosity of the suspension is for 15 * 10-3 ps s. Per ton of bentonite mud making cubic number is an important indicator to measure the quality of bentonite and sodium bentonite mud making performance generally better than calcium bentonite.
Use of bentonite
1, in the drilling, configuration with high rheological and thixotropic properties of drilling mud suspension.
2, in mechanical manufacturing, can make the casting sand, binder, can overcome the "sand inclusion of castings, the phenomenon of" peeling, decrease the casting scrap rate, ensure the accuracy of castings and finish.
3, used as paper filler in the paper industry, enhance the brightness of paper.
4, used in textile printing dyeing liquid antistatic coating, printed instead of starch sizing and coating.