PP polypropylene
Te whānuitanga tono noa:
Te umanga motuka (te nuinga o te whakamahi i ngā tāpiringa whakarewa kei roto i te PP: ngā pare paru, ngā paipa hau, ngā pā hau, me ētahi atu), ngā taputapu (ngā arai tatau horoi rihi, ngā paipa hau whakamaroke, ngā anga me ngā taupoki mīhini horoi, ngā arai tatau pouaka whakamātao, me ētahi atu), ngā taonga kaihoko o Hapani (ngā taputapu tarutaru me te māra pēnei i te
Ngā mīhini tapahi tarutaru me ngā mīhini tauhiuhi, me ētahi atu).
Ngā tikanga tukanga pokepokea ai werohanga:
Te whakamaroke: Ki te penapena tika, kāore e hiahiatia he maimoatanga whakamaroke.
Pāmahana rewa: 220~275℃, kia tūpato kei neke ake i te 275℃.
Pāmahana pokepokea ai: 40~80℃, 50℃ te mea e taunakitia ana. Ko te nui o te tioata ka whakatauhia e te pāmahana o te pokepokea ai.
Pēhanga werohanga: tae atu ki te 1800bar.
Tere werohanga: Ko te tikanga, mā te werohanga tere-nui ka taea te whakaiti i te pēhanga o roto ki te iti rawa. Mena he hapa kei te mata o te hua, me whakamahi te werohanga tere-iti i te pāmahana teitei ake.
Ngā kaiārahi me ngā kēti: Mō ngā kaiārahi makariri, ko te whānuitanga o te kaiārahi he 4~7mm. E taunakihia ana kia whakamahia he putanga werohanga porowhita me te kaiārahi. Ka taea te whakamahi i ngā momo kēti katoa. Ko te whānuitanga o te kēti he 1 ki te 1.5mm, engari ka taea hoki te whakamahi i ngā kēti iti tae atu ki te 0.7mm. Mō ngā kēti taha, ko te hohonutanga o te kēti iti rawa me haurua te matotoru o te pakitara; ko te whānui o te kēti iti rawa me rua te matotoru o te pakitara. Ka taea te whakamahi i te pūnaha kaiārahi wera mō te rauemi PP.
Ngā āhuatanga matū me ngā āhuatanga ā-tinana:
He rauemi haurua-kiriata te PP. He mārō ake i te PE, ā, he teitei ake te ira rewa. Nā te mea he tino pakarukaru te homopolymer PP ina teitei ake te pāmahana i te 0°C, he maha ngā rauemi PP arumoni he copolymer matapōkere me te 1 ki te 4% ethylene, he copolymer rawhi rānei me te nui ake o te ihirangi ethylene. He iti ake te pāmahana whakararuraru wera o te rauemi Copolymer PP (100°C), he iti te mārama, he iti te kanapa, he iti te pakari, engari he kaha ake te kaha pānga. Ka piki ake te kaha o te PP me te pikinga o te ihirangi ethylene. Ko te pāmahana whakangawari Vicat o te PP he 150°C. Nā te nui o te tioata, he tino pai te pakari o te mata me te ātete ki te rakuraku o tēnei rauemi. Kāore he raruraru o te PP ki te pakaru o te ahotea taiao. I te nuinga o te wā, ka whakarerekētia te PP mā te tāpiri i te muka karāhe, ngā tāpiri whakarewa, te rapa thermoplastic rānei. Ko te tere rere MFR o te PP kei waenga i te 1 ki te 40. He pai ake te ātete pānga o ngā rauemi PP he iti te MFR engari he iti ake te kaha whakaroa. Mō ngā rauemi he rite te MFR, he teitei ake te kaha o te momo copolymer i te momo homopolymer. Nā te whakatiotanga, he tino teitei te tere whakaheke o te PP, ko te tikanga 1.8~2.5%. Ā, he pai ake te ahunga ōrite o te whakahekenga i tērā o te PE-HD me ētahi atu rauemi. Mā te tāpiri i te 30% o ngā tāpiringa karāhe ka taea te whakaiti i te whakahekenga ki te 0.7%. He pai te mimiti makuku, te ātete ki te waikura waikawa me te kawakore, me te ātete ki te wairewa o ngā rauemi PP homopolymer me te copolymer. Heoi, kāore he ātete ki ngā whakarewa warowaihā kakara (pēnei i te benzene), ngā whakarewa warowaihā chlorinated (waro tetrachloride), me ētahi atu. Kāore he ātete waikura o te PP i ngā pāmahana teitei pērā i te PE.

Tō mātoupūnu kirihou, ngā ngongo whakamātautau kirihou, ngā mea whakangote ihume ētahi atu hua e pā ana ki te tinana tangata ka whakamahia ngā rauemi PP. Kei a mātou ngā rauemi PP kounga hauora me ngā rauemi PP kounga kai. Nā te mea kāore he paitini o ngā rauemi PP.