Xiamen LFT Polypropylene filling long carbon fiber composites PP higher toughness and strength

PP-LCF

Carbon FiberReinforced Polymer (CFRP) is composed of carbon fiber as a reinforcing material and resin as a matrix material. The early carbon fiber reinforced composites are mainly used in the military field. With the improvement of material properties, forming technology and the decrease of price, carbon fiber composites are more and more used in general industry and sports and leisure fields.

Information

Carbon fiber can improve the elastic modulus of polypropylene, but reduce the tensile strength, impact strength and elongation at break.

The carbon fiber has a certain heterogeneous nucleation effect on PP, which increases the non-isothermal crystallization peak temperature and grade of PP matrix, and promotes the formation of β crystal type in PP matrix.

Polypropylene is easy to nucleate and crystallize at the end of carbon fiber section during isothermal crystallization.

EPDM-g-MAH and SEBS-g-MAH have good dispersion in PP matrix, which significantly improves the impact strength and elongation at break of PP. The PP/CF composite material with EPDM-g-MAH and SEBS-g-MAH has higher impact strength and elastic modulus.

The addition of toughening agent in PP/CF composite results in the decrease of nucleation ability and crystallization growth rate of PP matrix.

The crystal type of PP/CF composite was not changed by the toughening agent. The nucleation of carbon fiber became obvious in the PP/CF composite, and the spherulites mainly grew near the carbon fiber.

Datasheet

Tested by our own lab, for reference only.

Application

Driven by the global trend of energy saving and environmental protection, the problem of automobile fuel consumption has attracted more and more attention. Lightweight design has become an effective way of automobile energy saving and emission reduction, and the material properties and development trend of carbon fiber composite materials are complying with the development needs of the automobile industry. With the development of new energy vehicles, carbon fiber composite materials will be more and more widely used in automobiles.

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