He Whakamārama Taipitopito mō ngā Āhuatanga, ngā Tikanga Tukatuka me ngā Whakamahinga o ngā Rauemi PE me PP

1. Tirohanga Whānui o ngā Rauemi

Ko te PE, PP, PVC, PS, PC, PF, EP, ABS, PA, PMMA, me ētahi atu, e kiia ana ko ngā rauemi kirihou, e mōhiotia ana hoki ko ngā rauemi polymer. He momo rauemi hangai ēnei he kirihou i hangaia mai i ngā matū ngota-teitei mā roto i ngā momo tikanga tukatuka. He painga ngā rauemi kirihou ko te māmā, te kaha teitei, te ātete pai ki te waikura, me te whakamarumaru pai. He whānuitia te whakamahinga i roto i ngā takai, te hanga, ngā motuka, ngā hikohiko, me te maha atu o ngā mara.

Polyethylene (PE): He kirihou wera māmā, ngāwari hoki, he ātete matū pai. I runga i te matotorutanga, ka taea te whakarōpū ki te polyethylene matotoru-teitei (HDPE) me te polyethylene matotoru-iti (LDPE).

Polypropylene (PP): He ātete wera nui, he ātete matū, he pakari hoki, ā, he mea whakamahi noa i roto i ngā wāhanga motuka me ngā taputapu whare.

2. Polyethylene (PE)

Ngā Āhuatanga Ā-Tinana me te Matū: Ko te Polyethylene (PE) he pūhui ngota-teitei rārangi me te hanganga ngota tino māmā, he mea tito mai i ngā wae "-CH2-CH2-" e tāruarua ana. Nā tēnei hanganga ka whakawhiwhia te PE ki ngā āhuatanga ā-tinana me te matū ahurei.

Māmā: He iti te mātotoru o te PE, kei waenganui i te 0.91 me te 0.96 g/cm³, ā, he rite tonu ki te rauemi māmā.

Ātete Matū: He pai te pumau matū o te PE ki te nuinga o ngā waikawa, ngā kawakore, me ngā otinga tote.

Ārai Hiko: He rauemi kore-pororaru te PE, ā, he tino pai te mahi ārai hiko.

Ātete ki te Pāmahana Iti: Ka taea e te PE te pupuri i ōna āhuatanga ā-tinana i ngā pāmahana iti iho i te -70°C. Ka taea te hanga anō i te PE i muri i te whakamahana, kia māmā ake ai te hangarua me te tukatuka anō.

Ngā Tikanga Tukatuka: He kanorau ngā tikanga tukatuka o te polyethylene, ā, ko te nuinga o ēnei ko ngā mea e whai ake nei.

Te whakaputanga: e whakamahia ana mō te hanga paipa, ngā paparanga whakamahana o ngā waea me ngā taura, me ētahi atu.

Te Hanga Werohanga: he pai mō te hanga ipu iti, taonga takaro, me ētahi atu.

Te Whakapūtanga Pupuhi: e whakamahia ana mō te hanga pounamu me ngā ipu tuwhera.

Whakarewatanga Kōpeketanga: he pai mō te hanga i ngā wāhanga kirihou nunui ake, e whakamahia ana mō te hanga i ngā rauemi tākai me ngā paepae pakitara-angiangi.

Ngā Āpure TonoHe whānuitia ngā momo whakamahinga o te polyethylene. Anei ētahi tauira whakamahinga matua.

Ngā Rauemi Tākai: He whānuitia te whakamahinga o ngā kiriata PE i roto i ngā tākai kai me ngā tākai taonga nā te mea he mama, he pai hoki te mahi tiaki.

Paipa Kirihou: He maha ngā wā ka whakamahia ngā paipa HDPE mō te kawe wai me te hau nā te mea he ātete ki ngā matū me te ātete ki te kakahu.

Ngā Waea me ngā Taura: E whakamahia whānuitia ana te PE hei rauemi ārai i roto i te hanga waea me ngā taura.

Ahuwhenua: Ka whakamahia te PE hei hanga kiriata ahuwhenua, pēnei i te hangarau taupoki oneone.

Mara Hauora: Nā tōna hototahitanga koiora me te ātete matū, ka whakamahia hoki te PE i roto i te hanga o ētahi taputapu hauora.

Ahumahi Waka: E whakamahia ana te PE i roto i te hanga i ngā wāhanga waka, pērā i ngā tāke wahie me ngā parepare, nā te mea he mama me te ātete ki te pānga.

3. Ngā Āhuatanga Ā-tinana me te Matū o te Polypropylene (PP)

Ko te Polypropylene (PP) he pūhui thermoplastic raina i hangaia mai i te polymerization o ngā monomers propylene. Kei a PP ēnei āhuatanga ā-tinana me te matū rongonui e whai ake nei.

Ātete Wera: Ko te ira rewa o te PP kei waenga i te 160 me te 170°C, ā, he ātete wera, he pai hoki mō ngā hua e hiahia ana ki te tu atu i ngā pāmahana tiketike.

Ātete Matū: He pumau te PP ki te wai, ki ngā tote kore-waro, ki ngā waikawa, me ngā kawakore engari he ngawari ki ētahi whakarewa waro.

Pakari: He pakari rawa te PP, e āhei ai te pupuri i tōna āhua ahakoa he taumaha te kawenga.

Ātete ki te Ngenge: He pai te ātete o te PP ki te ngenge, ā, he pai mō ngā mahi e hiahia ana kia piko, kia takahuri rānei. Ka taea te whakamahana me te whakamatao i te PP me te kore e ngaro ōna āhuatanga ā-tinana, kia māmā ai te hangarua.

Ngā Tikanga Tukatuka: Ka taea te tukatuka i te polypropylene hei hua maha mā roto i ngā tikanga maha.

Whakaputa: Whakamahia mō te hanga paipa PP, rau, tokotoko, me ētahi atu.

Te Hanga Werohanga: He pai mō te whakaputa i ngā hua kirihou iti ki te rahi waenga pērā i ngā ipu, ngā taupoki, me ngā wāhanga motuka.

Te Whakapūtanga Pupuhi: Whakamahia hei hanga i ngā hua kirihou nui, tuwhera rānei, pērā i ngā pounamu me ngā peere. Whakamahia hei hanga i ngā ipu, i ngā paepae rānei, he angiangi ō rātou pakitara.

Te Hanga Muka: Ka taea hoki te hanga muka PP mā te totoro me te raranga mō ngā taura, ngā whāriki, me ētahi atu.

Ngā Wāhi WhakamahingaHe whānuitia ngā whakamahinga o te polypropylene, tae atu ki ngā tauira e whai ake nei.

Ahumahi Waka: E whakamahia whānuitia ana te PP i roto i te umanga waka mō ngā wāhanga o roto, o waho hoki nā te mea he mama, he ātete hoki ki te wera, pērā i ngā papa taputapu me ngā parepare.

Ahumahi Kakahu: Ka whakamahia ngā muka PP ki te hanga taura, whāriki, me ngā kākahu.

Ngā Rauemi Tākai: Nā te mama me te ātete ki ngā matū, e whakamahia whānuitia ana te PP i roto i ngā rauemi tākai mō ngā taonga kai me ngā taonga ehara i te kai.

Ngā Taputapu Whare: Ka whakamahia te PP hei hanga i ngā ipu haumaru mō te ngaruiti, ngā pouaka pouaka whakamātao, me ētahi atu wāhanga taputapu whare.

Ahumahi Hanga: E whakamahia ana ngā paipa me ngā rau PP i roto i ngā pūnaha paipa hanga whare me ngā rauemi whakapaipai.

Mara Hauora: Nā te mea he hototahi ki te koiora, ka whakamahia hoki te PP i roto i te hanga i ētahi taonga hauora whakakorekore, pērā i ngā ngira me ngā ngongo whakamātautau.