Weather-resistant PP-PCR material as well as preparation method and application thereof

The invention provides a weather-resistant PP-PCR material and a preparation method and application thereof.The weather-resistant PP-PCR material comprises recycled and regenerated polypropylene and brand new polypropylene, the recycled and regenerated polypropylene refers to a recycled material obtained after a workpiece shell is cleaned and crushed; the mass fraction of polypropylene in the recycled material obtained after the workpiece shell is cleaned and crushed is larger than or equal to 95%. The weather-resistant PP-PCR material disclosed by the invention has the same mechanical and weather-resistant properties as a brand-new polypropylene material, and can also reduce carbon emission at the same time. 本发明提供了一种耐候PP-PCR材料及制备方法和应用，其中，耐候PP-PCR材料包括回收再生的聚丙烯和全新聚丙烯，其中，所述回收再生的聚丙烯指的是工件外壳经清洗破碎后的回收料；所述工件外壳清洗破碎后的回收料中聚丙烯的质量分数大于等于95％。本申请耐候PP-PCR材料，具有与全新聚丙烯材料相同的力学和耐候性能，同时还能降低碳排放。