He aha ka resin PP?

He thermoplastic paʻakikī, paʻa, a crystalline ʻo Polypropylene (PP). Hana ʻia ia mai ka monomer propene (a i ʻole propylene). ʻO kēia resin hydrocarbon linear ka polymer māmā loa ma waena o nā plastics waiwai āpau. Hiki mai ʻo PP ma ke ʻano he homopolymer a i ʻole copolymer a hiki ke hoʻonui nui ʻia me nā mea hoʻohui. ʻO Polypropylene i ʻike ʻia ʻo polypropene, he polymer thermoplastic i hoʻohana ʻia i nā ʻano noi like ʻole. Hana ʻia ia ma o ka polymerization ulu kaulahao mai ka monomer propylene. No ka hui o polyolefins ʻo Polypropylene a he crystalline hapa a ʻaʻole polar. Ua like kona mau waiwai me ka polyethylene, akā ʻoi aku ka paʻakikī a ʻoi aku ka pale ʻana i ka wela. He mea keʻokeʻo, paʻakikī mechanical a he pale kemika kiʻekiʻe.