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Reactive compounding - chemical reactions for grafting

Reactive mixtures/reactive compounding

The process temperature must be high enough to initiate the chemical reaction, and therefore, the grafting process.

Chemical and physical reactions require a certain amount of activation energy. This energy is usually supplied as heat, which is why it is so important to adhere to the precise temperature profile when processing polymer compounds such as these reactive mixtures. Here, reactive groups are docked to the polymer chain and can then cross-link in a subsequent process in order to improve specific mechanical properties.

For reactive compounding, the process temperature must be high enough to initiate the chemical reaction, and consequently, the grafting process. If the temperature rises too sharply, some of the cross-linking groups may evaporate, preventing grafting from taking place.


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