Polyproplylene materials and method of preparing polypropylene materials

   
   

A polypropylene material is prepared from a blend of heterophasic propylene copolymers and propylene homopolymers. The material is prepared by blending the polymers while they are in a molten state, and forming a film or sheet from the polymer blend. The material has particular application to forming slit film tapes and similar materials. The resultant materials exhibit increased tenacity, elongation and toughness and greater surface roughness as compared to those materials prepared solely from propylene homopolymers.

Um material do polypropylene é preparado de uma mistura de copolymers do propylene e de homopolymers heterophasic do propylene. O material é preparado misturando os polímeros quando estiverem em um estado derretido, e dando forma a uma película ou a uma folha da mistura do polímero. O material tem a aplicação particular a dar forma a fitas adesivas cortadas da película e a materiais similares. O tenacity aumentado dos materiais exibição resultante, o elongation e o toughness e a aspereza de superfície mais grande em comparação 2 aqueles materiais prepararam-se unicamente dos homopolymers do propylene.

 
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