| 摘要 |
<p>PURPOSE: A manufacturing method of a recycled polypropylene resin is provided to obtain recycled polypropylene resin composition with effective cost and energy satisfying flame retardance, thermal resistance, scratch resistance which are required for interior of a vehicle, especially for a door trim. CONSTITUTION: A manufacturing method of a recycled polypropylene resin comprises an S1 step of cleaning water polypropylene resin by high-temperature and high-pressure water, and drying the waste polypropylene resin; an S2 step of pulverizing the waste polypropylene resin, and mixing the same with a modified polypropylene resin; and an S3 step of putting the mixed resin into an extruder, and melt-mulling the same.</p> |
