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Functionalization of Polyethylene by Grafting
Hofmann, Jan ; Figalla, Silvestr (referee) ; Petrůj, Jaroslav (advisor)
The bachelor thesis deals with functionalization of polyethylene by grafting. The theoretical part summarizes informations about types of copolymers, free radical grafting techniques and the factors, that affect properties of modified polymers as well as their biodegradability. The experimental part deals with modification of polyethylene in kneader under various conditions. The blends are composed of polyethylene, polylactic acid and another aditives (initiator, stabilizers). The torque and the temperature were monitored during the kneading. Some mechanical properties of new materials were tested on Zwick Z010 apparatus. Rheological properties of samples were investigated with melt flow indexes.

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