He aha ka ʻokoʻa ma waena o nā ʻeke kānana wai polyester (PE) a me nā ʻeke kānana wai PP?

He aha ka ʻokoʻa ma waena o nā ʻeke kānana wai polyester (PE) a me nā ʻeke kānana wai PP?

ʻO PP ka pōkole o polypropylene, ʻo Kina ka polypropylene, he polymer i hana ʻia e ka polymerization hoʻohui o propylene. He mea waxy keʻokeʻo me ka ʻike a māmā.

ʻO ka loko o ka mea pp i hana nui ʻia me ka propylene maʻemaʻe kiʻekiʻe, e komo pū ana me kahi liʻiliʻi o ka ethylene copolymer. Ma hope o ka maloʻo, hui ʻana, extrusion, granulation, sieving a homogenization, star polypropylene particles ʻO nā ʻāpana cylindrical he maʻalahi loa a maʻemaʻe me ka ʻole o nā mea ʻino mechanical. Loaʻa iā ia nā waiwai mechanical maikaʻi a me ka pale wela. ʻAʻohe mea ʻawaʻawa ke hoʻohana ʻia i loko o ke ana wela o ka 30 degere Celsius a 140 degere Celsius.

ʻO ka polypropylene kahi manamana lāʻau synthetic thermoplastic me ka hana maikaʻi loa, ʻo ia ka mea ʻeleʻele a me ka translucent thermoplastic māmā māmā. Loaʻa iā ia ke kūpaʻa kemika, ka pale wela, ka insulation uila, nā waiwai mechanical kiʻekiʻe a me ka maikaʻi o ka hoʻohana ʻana i nā ʻano hana hoʻonaninani kiʻekiʻe, a me nā mea ʻē aʻe, ka mea e hoʻohana wikiwiki ai ka polypropylene i nā mīkini, nā kaʻa, nā lako uila, ke kūkulu ʻana, nā textiles, ka pahu mai kona hoʻomaka ʻana. Ua hoʻomohala nui ʻia a hoʻohana ʻia ma nā ʻano he nui e like me ka mahiʻai, ka ululāʻau, ka lawaiʻa a me ka ʻoihana meaʻai.

PET polyester.

ʻO ka fiber polyester, i kapa ʻia ʻo "polyester". ʻO ia ka nui loa o nā fiber synthetic i kēia manawa. ʻO ka pōmaikaʻi nui loa o ka fiber polyester ʻo ia ka maikaʻi o ka wrinkle kū'ē a me ke ʻano paʻa, a he ikaika kiʻekiʻe a me ka hoʻihoʻi elastic. He paʻa, kū i ka wrinkle, hao ʻole, a ʻaʻole pili. No laila, he mea maʻamau ka polyester no nā lole.