ʻO Polypropylene (PP), kahi ʻano mea ʻona ʻole, ʻono ʻole, ʻono ʻole opalescent polymer 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 ka PP kekahi o ka plastic māmā loa o nā ʻano like ʻole i kēia manawa, ʻoi aku ka paʻa i ka wai, me ka nui o ka lawe ʻana i ka wai i ka wai no 24 mau hola he 0.01% wale nō.
