2013年6月21日星期五

Rare plastic heat stabilizer is based on what

Lanthanide chemistry periodic table and two closely related elements of 17 kinds of elements, called rare elements, referred to as rare earth (RE or R). According to the electronic structure of rare earth elements and physical and chemical properties, as well as their health status and in mineral CCP different ionic radii of a different nature, 17 kinds of rare elements are usually divided into two groups.Metal stearate
Lanthanum, Cerium ion itself non-toxic, colorless. By selecting the appropriate non-toxic organic component can be made non-toxic, high transparency, high thermal efficiency and stability, weather resistance, excellent thermal stability. Rare earth atom has not filled electron shell structure, the resulting wide range of electronic energy levels. Rare earth ions to hydroxyl, an azo group or a sulfonic acid group to form conjugates. Rare trace elements with similar properties. Second reactive rare earth alkali metal and alkaline earth metal elements other than metal elements and active. Among the 17 rare earth elements, according to order of reactivity of the metal from scandium, yttrium, lanthanum incremented, decremented by the lanthanum to lutetium, lanthanum being the most reactive. Can form a stable rare earth oxides, halides, sulfides. Rare earth elements can be nitrogen, hydrogen, carbon, phosphorus react, soluble in hydrochloric acid, sulfuric acid and nitric acid. Rare Easy and oxygen, sulfur, lead elements combine to form high melting point compounds.PVC plasticizer
Rare earth stabilizer is the main component elements lanthanum and cerium organic or inorganic salts. The main varieties are stearic acid salts and lead salts of rare earth and rare earth compound stabilizer. Rare Earth Heat Stabilizer has: Excellent thermal stability, and promote melting, processing performance, the unique coupling, compatibilization, internal plasticization, toughening effect, excellent transparency, the unique brightening features, excellent weathering properties and excellent electrical insulation properties; non-toxic, safety and health.
Rare multifunctional stabilizer stabilizer with traditional incomparable advantages in price performance is also better than the existing various stabilizers, is a new generation of green products. China's rare earth resources are very rich, production separation capacity also living in the world, therefore, in our country to promote the application of national characteristics of rare earth stabilizer has important economic and social benefits.


没有评论:

发表评论