PREPARING METHOD OF POLYOLEFIN RESIN MONO CHIP AND POLYOLEFIN RESIN MONO CHIP

摘要

The present invention relates to a preparing method of a polyolefin resin mono chip including: forming a thermoplastic resin composite by impregnating a fiber reinforcing agent having a length of 5 mm to 20 mm into a molten mixture including a propylene homopolymer of which a molecular weight distribution is 3 to 6, and a colorant, wherein a cooling speed at room temperature of the thermoplastic resin composite is 19° C./min or more.;In addition, the present invention relates to a polyolefin resin mono chip including: a thermoplastic resin composite including a polymer substrate including a propylene homopolymer of which a molecular weight distribution is 3 to 6, and a colorant; and a fiber reinforcing agent having a length of 5 mm to 20 mm and impregnated into the polymer substrate, wherein an impact strength measured according to ASTM D256 is 200 J/m or more.

主权项

1. A preparing method of a polyolefin resin mono chip comprising:
forming a thermoplastic resin composite by impregnating a fiber reinforcing agent having a length of 5 mm to 20 mm into a molten mixture including a propylene homopolymer of which a molecular weight distribution is 3 to 6, and a colorant, wherein a cooling speed at room temperature of the thermoplastic resin composite obtained by Equation (1) below is 19° C./min or more.
Cooling speed(° C./min)=(Tc1−Tc2)/(tc2−tc1)  [Equation 1] in Equation 1 above, Tc1 is a temperature at which crystallization starts, measured by DSC, Tc2 is a temperature at a time point at which the crystallization has been completed, measured by DSC, tc1 is a time at which the crystallization starts, measured by DSC, and tc2 is a time at which the crystallization has been completed, measured by DSC.