Peroxide Vulcanization and Crosslinking Efficiency E

2021-09-08Material Properties Lixing

PEROXIDE VULCANIZING /CROSSLINKING EFFICIENCY E

The vulcanization/crosslinking efficiency E of an organic peroxide is defined as follows:

Peroxide crosslinking efficiency E (Figure 1)

Vulcanization/Crosslinking Efficiency E

v is the network density per unit volume of rubber (mol/mL).

2[RO] is the concentration of radicals generated by the peroxide per unit volume of rubber (mol/mL).

Peroxide crosslinking efficiency E (Figure 2)

Organic Peroxide Crosslinking Reaction

Methyl silicone rubber has a crosslinking efficiency of approximately E ≈ 1. Introducing double bonds into the molecular chain greatly increases crosslinking efficiency, to approximately E ≈ 10.

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