Which is better, polypropylene or propylene homopolymer straw?

Both are acceptable. Polypropylene homopolymer has high rigidity and heat resistance, but poor impact resistance at low temperature. Polypropylene polymers mainly include random polymers and impact polymers. Compared with homopolymer, the transparency and toughness are improved, but at the same time, the rigidity, strength, hardness and thermal deformation temperature are reduced.