He rauemi haurua-kiriata te pepa PP. He mārō ake, ā, he teitei ake te ira rewa i te PE. Nā te mea he tino pakarukaru te pāmahana 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 te mātotoru o te pepa PP parakore, 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, ā, i tēnei wā ko tētahi o ngā kirihou hangarau tino pai mō te taiao. Ko ngā tae matua ko te mā, te tae rorohiko moroiti, ā, ka taea hoki te whakarite i ētahi atu tae kia rite ki ngā hiahia o te kiritaki. Ngā tono: taputapu ātete waikawa me te kawakore, kaihanga pepa pp.
Ko te pepa polypropylene (PP) he pepa kirihou i hangaia mā te tāpiri i ngā tāpiringa mahi ki te kapia PP mā te extrusion, te calendering, te whakamatao, te tapahi me ētahi atu tukanga.
Rau PP kua whakapakaritia ki te muka karāhe (rau FRPP): Whai muri i te whakapakaritanga ki te 20% o te muka karāhe, hei tāpiri atu ki te pupuri i te mahi tino pai o te taketake, ka rua te kaha me te pakari ki te whakataurite ki te PP, ā, he pai te ātete ki te wera me te ātete ki te pānga pāmahana iti, 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.
Kua angitu te whakamahinga o te pepa PPH i roto i te hanga pepa, ā, kei te tūranga matua te hangarau matatau i Haina. Ka taea te whakamahi i ēnei hua mō ngā pereti tātari me ngā ipu takai porowhita, mō ngā pepa arai kirihou kua whakapakarihia 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.
Te wā tuku: 20-Pepuere-2023
