1. Kupu Whakataki
Ko te Polyethylene terephthalate (PET) tētahi o ngā kirihou wera tino maha ngā whakamahinga o te ao, ā, e whakamahia whānuitia ana hoki. Hei rauemi matua mō ngā pounamu inu, ngā takai kai, me ngā muka hangai, ka whakakotahi te PET i ngā āhuatanga ā-tinana pai rawa atu me te āheinga hangarua. Ka tirohia e tēnei tuhinga ngā āhuatanga matua o te PET, ngā tikanga tukatuka, me ngā tono kanorau puta noa i ngā ahumahi.
2. Ngā Āhuatanga Rauemi
Ngā Āhuatanga Ā-tinana me ngā Āhuatanga Mīhini
- Te ōwehenga Kaha-ki-Taumaha Teitei: Te kaha kume o te 55-75 MPa
- Mārama: >90% te tuku māramatanga (ngā taumata tioata)
- Ngā Āhuatanga Ārai: He ātete pai ki te CO₂/O₂ (kua whakarei ake mā te paninga)
- Ātete Wera: Ka taea te whakamahi tae atu ki te 70°C (150°F) tonu
- Kiato: 1.38-1.40 karamu/cm³ (kore āhua), 1.43 karamu/cm³ (kirikiri)
Ātete Matū
- He ātete tino pai ki te wai, ki ngā waipiro, ki ngā hinu
- Ātete taurite ki ngā waikawa/kawe ngoikore
- He ātete ngoikore ki ngā kawakore kaha, ki ētahi whakarewa
Kōtaha Taiao
- Waehere Hangarua: #1
- Mōrearea Wairewa: Ka pirau i ngā pāmahana teitei/pH
- Āhuatanga hangarua: Ka taea te tukatuka anō i ngā wā 7-10, me te kore e ngaro nui ngā taonga.
3. Ngā Tikanga Tukatuka
| Tikanga | Ngā tono noa | Ngā Whakaaro Matua |
|---|---|---|
| Te Whakarewatanga Pupuhi Totoro Werohanga | Ngā pounamu inu | Ka whakapai ake te aronga biaxial i te kaha |
| Te whakaputanga | Ngā kiriata, ngā rau | Me tere te whakamatao kia mārama ai |
| Te Hurihuri Muka | Ngā kakahu (polyester) | Hurihuri tere-teitei i te 280-300°C |
| Te Hanga Wera | Ngā paepae kai | Te whakamaroke i mua i te whakamaroke (≤50 ppm te makuku) |
4. Ngā Whakamahinga Matua
Tākai (73% o te tono ā-ao)
- Ngā Pounamu Inu: 500 piriona waeine ia tau
- Ngā Ipu Kai: Ngā paepae e taea te whakamahi i roto i te ngaruiti, ngā anga huamata
- Rongoā: Ngā putea mirumiru, ngā pounamu rongoā
Ngā kakahu (22% te tono)
- Muka Polyester: Kākahu, whakapaipai
- Ngā Kakahu Hangarau: Ngā whitiki nohoanga, ngā whitiki kawe
- Ngā mea kore-whatu: Ngā kakano whenua, ngā rauemi tātari
Ngā Whakamahinga Hou (5% engari kei te tipu haere)
- Tānga 3D: Ngā miro kaha-teitei
- Hikohiko: Ngā kiriata ārai, ngā wāhanga pūnga
- Pūngao Whakahou: Ngā pepa o muri o te panera rā
5. Ngā Whakatairanga i te Oranga Tonutanga
Ngā Hangarau Hangarua
- Te Hangarua Ā-Mīhini (90% o ngā PET hangarua)
- Te tukanga horoi-marara-rewa
- Me tino horoi te kai-kai
- Te Hangarua Matū
- Te Glycolysis/te tango i te polymerization ki ngā monomers
- Ngā tukanga whākōkī e puta ake ana
PET e hangai ana ki te koiora
- 30% ngā wāhanga MEG i ahu mai i ngā tipu
- Te hangarau PlantBottle™ a Coca-Cola
- Te utu tāpiri o nāianei: 20-25%
6. Te Whakataurite ki ngā Kirihou Rerekē
| Taonga | PET | HDPE | PP | PLA |
|---|---|---|---|---|
| Māramatanga | Tino pai | Matotoru | Mārama | Pai |
| Te Mahana Whakamahi Mōrahi | 70°C | 80°C | 100°C | 55°C |
| Ārai Hāora | Pai | rawakore | Waenga | rawakore |
| Te Auau Whakamahi Anō | 57% | 30% | 15% | <5% |
7. Te Tirohanga ki te Ao o Muri Mai
Kei te kaha tonu te PET ki te whakamahi i ngā takai kotahi-whakamahinga, ā, kei te whakawhānui tonu ki ngā tono pakari mā roto i:
- Ngā hangarau ārai whakarei ake (ngā paninga SiO₂, paparanga maha)
- Ngā hanganga hangarua matatau (PET hangarua matū)
- Ngā whakarerekētanga mahi (ngā nano-composites, ngā whakarerekētanga pānga)
I te mea he taurite ahurei te mahi, te ngāwari ki te tukatuka me te ngāwari ki te hangarua, he mea nui tonu te PET i roto i te ōhanga kirihou o te ao, i a ia e neke ana ki ngā tauira whakaputa porowhita.
Te wā tuku: Hurae-21-2025