ʻO Polypropylene, he ʻano polymer opalescent ʻaʻohe ʻawahia, ʻala ʻole, ʻono ʻole me ka crystallization kiʻekiʻe, ka helu heheʻe ma waena o 164-170 ℃, ka nui ma waena o 0.90-0.91g/cm3, ʻo ke kaumaha molekala ma kahi o 80,000-150,000. ʻO PP kekahi o nā plastic māmā loa o nā ʻano āpau i kēia manawa, paʻa loa i ka wai, me ka helu omo wai i ka wai no 24 mau hola he 0.01% wale nō.
