Perlite is a volcanic eruption after acidic lava, after a period of rapid cooling, and form a glass properties of rocks.
In many popular science websites, people often see perlite as a raw material, so what kind of material is perlite?Let’s find out together.
The most obvious advantage of perlite used in agriculture is its strong water absorption capacity, which can regulate soil hardening; The disadvantage is that it will float on the soil surface after watering, and it will be harmful to the human body after inhalation.
Perlite is mainly used in rubber and plastic products, pigments, paints, inks, synthetic glass, thermal insulation bakelite, etc. Perlite can become a lightweight and multifunctional new material after expansion.
Perlite has the characteristics of light apparent density, low thermal conductivity, good chemical stability, wide temperature range, low moisture absorption capacity, non-toxic, tasteless, fireproof, sound absorption and so on.
The same kind of perlite often has other characteristics due to its different internal structure and composition. The appearance of different forms is the sign of identifying perlite and the basis for analyzing the causes of perlite formation.
Pearlite products can be divided into raw perlite ore, perlite sand, expanded perlite and surface treated expanded perlite according to different processing degrees.