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Calcium-zinc Stabilizer

توشته شده توسط Fatemeh Rajabi

:Calcium – zinc stabilizers .Metal soaps are a type of heat stabilizers for PVC that are composed of a mixture of at least two metals, with one metal responsible for color preservation in the initial processing stages and the other metal responsible for long-term heat stability, such as calcium-zinc (Zn) stabilizers, which have been widely used in PVC applications for over 25 years. These materials are generally based on metal carboxylates and sometimes incorporate other

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Tin base stabilizer

توشته شده توسط Fatemeh Rajabi

Tin Base Stabilizer PVC compounds usually have limited heat resistance. To bolster this resistance, tin base stabilizers are employed to counteract PVC degradation caused by heat during processing. Among the most effective stabilizers for enhancing PVC’s heat resistance are those based on tin. Tin-based compounds can be classified into two categories :Mercaptides and Carboxylates . Mercaptide-type stabilizers of tin are suitable for rigid PVC packaging with a PVC coating:  These include MTM (Methyl Tin Mercaptide)

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Epoxy soybean oil

توشته شده توسط Fatemeh Rajabi

Epoxy soybean oil ( Payaflex ESO 60 )  is a yellow liquid, and the less yellowish it is, the higher the quality of the oil. Soybean oil is converted to epoxy through oxidation. The higher the conversion of double bonds to epoxy, the higher the compatibility of this oil with PVC, and the iodine value of the oil decreases while the oxirene number increases. The suitable iodine value for epoxy soybean oil for 95% compatibility with

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