The characteristics and advantages of Spherical Graphite as adsorbent
In the modern industry, the application of Spherical Graphite is very large, in addition to flame retardant materials used in many industries, the Spherical Graphite because of its loose porous structure, also used as adsorbent to absorb different grease or moisture. Spherical Graphite used as an adsorbent is a great advantage, today the day Shengda graphite small series for everyone to talk about Spherical Graphite used as adsorbent characteristics and advantages:
First, the Spherical Graphite can be made very good performance of the adsorbent.
Spherical Graphite is a good performance of the adsorbent, in particular, it has a loose porous structure, the organic compounds with a strong adsorption capacity, 1 g Spherical Graphite can absorb 80 g of oil, so Spherical Graphite was designed as a variety of industrial grease and Industrial oil adsorbents. Spherical Graphite is very easy to adsorb oil, organic molecules and hydrophobic substances for water environmental treatment with other substances irreplaceable effect. When it is used in granular form for the surface of oil, according to the size of the surface oil and oil types of different, the amount of 1 ~ lo% / rn, adsorption time can be 15rain to several h range.
Second, compared to other materials, Spherical Graphite adsorbent has a huge advantage.
Compared with other adsorbents, Spherical Graphite has many advantages. Such as cotton, grass ash, polypropylene fiber, perlite, vermiculite, etc., which are used in the presence of some of the adsorbents, such as cotton, grass ash, polypropylene fiber, vermiculite, etc. It is difficult to deal with the post-treatment; the adsorption of the Spherical Graphite on the oil is large, the oil is floated on the surface of the water, the fishing is easy to be recycled, and the recycling is easy to use. It can be extruded, centrifuged, vibrated and solvent Cleaning, burning, heating extraction and other methods, and will not form secondary pollution.
In various fields of industry, often choose Spherical Graphite as a thermal insulation materials for processing production. Is what the characteristics and advantages of Spherical Graphite it makes it a hot choice for the first choice of it, Spherical Graphite and what process is to achieve the purpose of thermal insulation, and today, the day of the graphite small series for everyone to talk about why the Spherical Graphite is separated The best choice for thermal flame retardant materials:
Spherical Graphite is a natural flake graphite that has been chemically treated from scaly to loose, porous worm-like graphite. In industrial production, Spherical Graphite forms a tough carbon layer on the surface of the polymer, separating the combustible from the heat source; absorbing heat in the process of expansion, reducing the temperature of the system; releasing the acid ions in the interlayer during the expansion process , To promote dehydration carbonation, and can combine the free radicals generated by combustion to interrupt the chain reaction. Spherical Graphite and phosphorus compounds, metal oxide compound can produce synergies, add a small amount can achieve the purpose of flame retardant.
Spherical Graphite used as a thermal insulation material has a huge advantage:
First, Spherical Graphite produces less smoke and the effect is significant.
In general, in order to make the object has a fire-retardant fire function, will add halogen-containing flame retardant, but will produce smoke and acid gases, which will affect people's health will also corrode indoor equipment; will add metal hydroxide, but Will have a great impact on the impact resistance and mechanical strength of the plastic or substrate; it will also add phosphorus flame retardant, but in the case of air is not very smooth will have a serious impact on people. Spherical Graphite is even more ideal. Will produce very little smoke and the flame retardant effect is remarkable.
Second, Spherical Graphite can improve the processing temperature of flame retardant materials.
In industrial production, it is commonly used in the engineering plastics by adding flame retardants, but because of the low decomposition temperature, will lead to decomposition will eventually lead to failure. The physical properties of Spherical Graphite are stable and will not affect the quality of the processed material, so the flame retardant performance is improved.
Third, the Spherical Graphite has a good insulation, anti-corrosion properties.
Spherical Graphite is a corrosive material that exists in a stable crystalline form. Not because of limited shelf life and stability, in the decomposition, oxidation deterioration until failure.