On the role of PVC heat stabilizers principle

 Talking about the role of PVC heat stabilizers principle
Who can improve the thermal PVC impact modifier stability of the polymer additives are known heat stabilizers. Because of the poor thermal stability of PVC, so most of the world are used for PVC heat stabilizers of PVC. Therefore, the commonly used PVC heat stabilizer refers to polyvinyl chloride and its copolymers heat stabilizer.
As to achieve good stability of PVC often need to use a variety of pvc heat stabilizer, so that dibasic lead stearat some products is a combination of stabilizers for PVC component complex, a composite stabilizer, such as barium cadmium stabilizer, barium zinc stabilizer etc., these composite stabilizer usually has joined the PVC processing lubricants and other additives needed to facilitate the users. Many varieties of composite stabilizer with powder, paste, liquid, three forms.