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What is Polymer Degradation Mechanisms Explained about?

Polymer degradation during mixing can be caused by oxidation from oxygen, ozone, heat, light, metals and mechanical shear. Oxidation leads to chain scission and crosslinking depending on the polymer. Chain scission causes softening while crosslinking causes hardening. Antioxidants can inhibit degradation by interfering with the radical propagation process during oxidation. Primary antioxidants terminate radicals while secondary antioxidants decompose peroxides. Proper compounding and processing can minimize

Author

विनय शर्मा

Language

EN