1. Folasaga
O le Polyethylene terephthalate (PET) o se tasi o mea e sili ona fa'aogaina ma fa'aoga lautele i le lalolagi. I le avea ai ma mea muamua mo fagu meainu, afifiina o meaʻai, ma filo faʻapipiʻi, PET tuʻufaʻatasia mea tino lelei ma toe faʻaaogaina. O lenei tusiga o loʻo suʻesuʻeina uiga autu o le PET, metotia faʻagaioiga, ma faʻaoga eseese i pisinisi.
2. Meatotino Meatotino
Meatotino Faaletino & Fa'ainisinia
- Maualuluga Malosi-i-Mamafa Fuafuaga: Malosi o le tensile o le 55-75 MPa
- Malamalama:> 90% moli moli (va'aiga tioata)
- Meatotino Pa puipui: Lelei le CO₂/O₂ tete'e (fa'aleleia ma fa'alavalava)
- Tete'e vevela: E mafai ona fa'aaogaina e o'o atu ile 70°C (150°F) fa'aauau
- Malosi: 1.38-1.40 g/cm³ (amorphous), 1.43 g/cm³ (ma'o)
Tete'e vaila'au
- Lelei le tetee i vai, ava malosi, suauu
- Fete'ena'i feololo i acids/bases vaivai
- Le lelei le tetee atu i alkalis malosi, nisi solvents
Siosiomaga Tala'aga
- Fa'ailoga Toe Fa'aaogā: #1
- A'afiaga o le Hydrolysis: Fa'aleagaina ile vevela maualuga/pH
- Toe fa'aaogaina: E mafai ona toe fa'asolo i le 7-10 taimi e aunoa ma le tele o mea e leiloa
3. Fa'agaioiina Metotia
| Metotia | Talosaga masani | Manatu Autu |
|---|---|---|
| Su'i Fa'a'oloa Fa'a'ai | fagu inu | Biaxial orientation faʻaleleia le malosi |
| Extrusion | Ata tifaga, laupepa | E mana'omia le fa'amalo vave mo le manino |
| Filo taamilo | 'ie (polyester) | Taamilomilo maualuga i le 280-300°C |
| Thermoforming | Fata meaai | Fa'amamago mana'omia (≤50 ppm susu) |
4. Talosaga Tele
afifiina (73% o manaoga ole lalolagi)
- Fagu Meainu: 500 piliona iunite i tausaga ta'itasi
- Koneteina o Mea'ai: Fata fa'avevela, atigi salati
- Pharmaceutical: pusa ma'i, fagu vailaau
Ie (22% mana'oga)
- Polyester Fiber: La'ei, mea fa'apipi'i
- Ie'e Fa'atekinisi: Fu'a nofoa, fusi fa'a'ave'au
- Nonovens: Geotextiles, filtration ala o faasalalauga
Fa'aaogāga fa'asolo mai (5% ae fa'atupula'ia)
- Lomitusi 3D: Filaments maualuga-malosi
- Fa'aeletonika: Ata fa'a'ese'ese, vaega fa'amusika
- Malosiaga Fa'afouina: La'ei pito i tua
5. Fa'aauauina le alualu i luma
Fa'atekonolosi toe fa'aaogaina
- Toe fa'ainisinia (90% o PET toe fa'aaogaina)
- Fufulu-pa'u-fa'alili
- Mea'ai-fa'ailoga e mana'omia le fa'amama sili
- Toe fa'aaogaina vaila'au
- Glycolysis/depolymerization i monomers
- Fa'agasologa o le enzymatic fa'atupu
PET fa'avae olaola
- 30% vaega MEG e maua mai laau
- Coca-Cola's PlantBottle™ tekinolosi
- Fa'asalaga tau nei: 20-25%
6. Fa'atusatusaga ma isi Plastics
| Meatotino | PET | HDPE | PP | PLA |
|---|---|---|---|---|
| Malamalama | Lelei | Opaque | Translucent | Lelei |
| Max Fa'aaoga Temp | 70°C | 80°C | 100°C | 55°C |
| Pupuni okesene | Lelei | Mativa | feololo | Mativa |
| Fua Fa'atatau o le toe fa'aaogaina | 57% | 30% | 15% | <5% |
7. Vaaiga i le Lumanai
O loʻo faʻaauau pea ona pulea e le PET le afifiina e tasi le faʻaoga aʻo faʻalauteleina i talosaga umi e ala i:
- Fa'atekonolosi pa puipui (SiO₂ coatings, multilayer)
- Atina'e toe fa'aaogaina (PET toe fa'aaogaina kemikolo)
- Suiga o faatinoga (nano-composites, suiga o aafiaga)
Faatasi ai ma lona paleni tulaga ese o le faʻatinoga, faʻagasologa ma toe faʻaaogaina, PET tumau pea le taua i le tamaoaiga o palasitika o le lalolagi aʻo agai atu i faʻataʻitaʻiga faʻataʻamilomilo gaosiga.
Taimi meli: Iul-21-2025