He kirihou wera pakari, pakari, me te tioata te Polypropylene (PP). He mea hanga mai i te monomer propene (propylene rānei). Ko tēnei kapia hauwaiwai rārangi te polymer māmā rawa atu i roto i ngā kirihou taonga katoa. Ka puta mai te PP hei homopolymer, hei copolymer rānei, ā, ka taea te whakanui ake mā te whakamahi i ngā tāpiringa. Ko te Polypropylene, e mōhiotia ana ko te polypropene, he polymer kirihou wera e whakamahia ana i roto i te whānuitanga o ngā tono. Ka whakaputaina mā te polymerization tipu-mekameka mai i te monomer propylene. Nō te rōpū polyolefins te Polypropylene, ā, he tioata wāhanga, kāore hoki i te porowhita. He rite ōna āhuatanga ki te polyethylene, engari he paku mārō ake, ā, he ātete wera ake. He rauemi mā, he pakari ā-mīhini, ā, he ātete matū teitei.
Te wā tuku: Hurae-13-2022