Some excellent performance of one pack stabilizer

Multiple selection is based rare earth oxides and rare earth chlorides , oxides and chlorides mostly single one or a mixture of lanthanum, cerium , praseodymium, neodymium and other light rare earths.
  Rare earth elements have similar chemical properties and abnormal active , with many tracks can be accepted as a central ion ligand lone pair of electrons, while the rare earth metal ion has a larger ion radius , with inorganic or organic ligands primarily by electrostatic attraction forming ions bond , as the central atom complex , often d2SP3, d4dP3, f3d5Ssp3 other hybrid forms form complexes with a median of 6-12 .
  REE excellent mechanical properties and their grouping principles are concerned with the geometric properties of rare  WSD Metallic stearate earth elements . Because the radius of the atoms and ions are important factors that determine the configuration , hardness , density and physical properties such as melting point of the crystals at room temperature , atmospheric conditions , rare earth metal lanthanum, praseodymium , neodymium, double- hexagonal crystal structure, and the cubic cerium crystal density ( centroid ) structure, when the temperature and pressure changes , the majority of the rare earth metal transition of crystal . Because lanthanide contraction lanthanide atomic radius , atomic volume decreases with increasing atomic number , the density increases with the atomic number , compared with lanthanum , cerium , praseodymium , neodymium , abnormal phenomenon .
  Lanthanum , cerium, praseodymium , neodymium , lanthanum is the most chemically active , but only trivalent lanthanum C1 RECl being generated complex and this complex is unstable , and WSD Chlorinated paraffin  cerium , praseodymium these expensive rare earth ions the ability to form complexes with Cl stronger than the trivalent lanthanum , they form a stable complex ions and negative Cl ligands , therefore , in the selection of rare earth thermal stabilizer to comprehensive lanthanum, cerium , praseodymium, neodymium respective advantages in different applications , one with its high-purity single , hybrid , or a reasonable match.

  The rare earth ion is typically hard cations, i.e. ions easily deformed polarization , which base is equipped with hard metal atoms , such as oxygen strong complexing ability . The rare earth compound of CaC03 coupling effect due to the presence of the chain between the rare earth ions and chloride ions in the strong PVC ligand interactions conducive transmit shear force so that the rare earth compounds can effectively accelerate the gelation of PVC , can be promote PVC plasticizers , processing aids, but also play a role in the ACR . Meanwhile, the rare earth metal ions and ligands CPE in C1 , can play its role more CPE toughening modification . The adequacy of these performance play balance or not, and in the rare earth complex compound additive has a significant relationship , complex lubrication system , processing the modified system is crucial , so complex process of good bad a direct impact on the performance of multi-functional complexes of rare earth stabilizer . Excellent performance rare earth stabilizer should have the following features:
  ( 1 ) excellent thermal stability
  Static and dynamic thermal stability, both tin  WSD Polyethylene wax and Beijing 8831 is quite good in the lead salts and metallic soaps , four times three times and lead salts Ba / Zn composite stabilizer. Complex can become toxic, transparent, and may partially replace the organotin stabilizers are widely used. Mechanism for the capture of rare earth stabilizer HCl and allyl chloride atom replaced with an auxiliary stabilizer epoxy has good synergy.

  ( 2 ) coupling effect
  Coupled with excellent effect , compared with the lead salt , good compatibility with PVC role for the PVC-CaCO, system coupling effect is better, help to improve the PVC plastic door and window profile strength. Weld strength rare earth stabilizer processing PVC profiles PVC profiles weld strength than lead salt stabilizer to high raw material prices are also higher.