Papa PPHe rauemi haurua-kiriata te mea nei. He uaua ake, ā, he teitei ake te ira rewa i te PE. Nā te mea he tino pakarukaru te pāmahana o te homopolymer PP i runga ake i te 0C, he maha ngā rauemi PP arumoni he copolymer matapōkere me te 1 ki te 4% ethylene, he copolymer rawhi rānei me te ihirangi ethylene teitei ake. He iti, he ngāwari ki te whakarewa me te tukatuka, he ātete matū pai ake, he ātete wera me te ātete pānga, kāore he paitini me te kore reka, ko tētahi o ngā kirihou PP hangarau e tutuki ana i ngā whakaritenga tiaki taiao. Ko ngā tae matua he mā, he tae rorohiko moroiti, ā, ka taea hoki te whakarite i ētahi atu tae kia rite ki ngā hiahia o te kiritaki. Awhe tono: taputapu ātete waikawa me te kawakore.
Papa PP whakakaha muka karāhe (papa FRPP): Whai muri i te whakakahangia ki te 20% muka karāhe, hei tāpiri atu ki te pupuri i te mahi tino pai o te papa tuatahi, ka rua te kaha me te pakari ki te whakataurite ki te PP, ā, he pai te ātete ki te wera me te iti o te ātete pānga ki te pāmahana, te ātete ki te pewa waikura, te iti o te whakahekenga. He tino pai mō te muka matū, te chlor-alkali, te hinu, te tae, te patu pepeke, te kai, te rongoā, te ahumahi māmā, te whakarewa, te maimoatanga paru me ētahi atu mara.
Papa PPH, beta (β)-PPHpapa kore-whatu kotahi-taha.β)-He tino pai te ātete o ngā hua PPH ki te wera me te hāora, he roa te ora mahi, ā, he pai hoki ngā āhuatanga miihini. Kua angitu te whakamahinga i roto i te hanga pereti, ā, kei te tūranga matua te hangarau matatau i Haina. Ka taea te whakamahi i ēnei hua mō ngā pereti tātari me ngā ipu pakaru porowhita, mō ngā papa arai kirihou kua whakakahangia ki te muka karāhe, mō te rokiroki ahumahi hinu, mō ngā pūnaha kawe me te ārai-waikura, ngā tipu hiko, te tuku wai, te maimoatanga wai me ngā pūnaha rerenga wai mō ngā tipu wai; me ngā tipu maitai, ngā tipu hiko, ngā pūnaha tango puehu, te horoi me te hauhautanga, me ētahi atu.
Wā tuku: Maehe-22-2023
