1. Selelekela
Polyethylene terephthalate (PET) ke e 'ngoe ea li-thermoplastic tse feto-fetohang le tse sebelisoang haholo lefatšeng. Jwalo ka thepa ea mantlha bakeng sa libotlolo tsa lino, liphutheloana tsa lijo le likhoele tsa maiketsetso, PET e kopanya thepa e ntle ea 'mele le ho sebelisoa hape. Sengoloa sena se hlahloba litšobotsi tsa bohlokoa tsa PET, mekhoa ea ts'ebetso, le lits'ebetso tse fapaneng ho pholletsa le liindasteri.
2. Thepa ea Lintho
Matlotlo a 'Mele le a Mekaniki
- Karolelano e Phahameng ea Matla ho ea ho Boima: Matla a ho tsikinyeha a 55-75 MPa
- Ho hlaka: >90% phetiso ea leseli (likereiti tsa kristale)
- Matlotlo a Thibelo: Khanyetso e ntle ea CO₂/O₂ (e ntlafalitsoe ka ho koaheloa)
- Khanyetso ea Thermal: E ka sebeletsoa ho fihlela ho 70°C (150°F) e tsoelang pele
- Botenya: 1.38-1.40 g/cm³ (e sa fetoheng), 1.43 g/cm³ (e kristale)
Khanyetso ea Lik'hemik'hale
- Ho hanyetsa hantle metsi, joala, oli
- Ho hanyetsa ka mokhoa o itekanetseng li-acid/base tse fokolang
- Ho hanyetsa ha matla a alkali, dihlapolli tse ding
Boemo ba Tikoloho
- Khoutu ea ho Sebelisa Hape: #1
- Kotsi ea Hydrolysis: E senyeha mochesong o phahameng/pH
- Ho ka sebelisoa hape: E ka sebelisoa hape ka makhetlo a 7-10 ntle le tahlehelo e kholo ea thepa
3. Mekhoa ea ho Sebetsa
| Mokhoa | Likopo tse Tloaelehileng | Lintlha tsa Bohlokoa |
|---|---|---|
| Ente Otlolla ho letsa ho bopa | Libotlolo tsa lino | Ho shebana le biaxial ho ntlafatsa matla |
| Ho ntša | Lifilimi, maqephe | E hloka ho pholisa ka potlako bakeng sa ho hlaka |
| Ho Ohla ha Faeba | Masela (polyester) | Ho potoloha ka lebelo le phahameng ho 280-300°C |
| Thermoforming | Literei tsa lijo | Ho omisa pele ho oma ho bohlokwa (mongobo wa ≤50 ppm) |
4. Likopo tse Kholo
Sephutheloana (73% ea tlhoko ea lefats'e)
- Libotlolo tsa lino: li-unit tse limilione tse likete tse 500 ka selemo
- Lijana tsa Lijo: Literei tse ka kenngoang ka microwave, likhetla tsa salate
- Meriana: Lipakete tsa matheba, libotlolo tsa meriana
Masela (tlhoko ea 22%)
- Fiber ea Polyester: Liaparo, thepa ea ka tlung
- Masela a Tekheniki: Mabanta a pholoso, mabanta a tsamaisang thepa
- Li-Nonloven: Li-geotextile, mecha ea ho sefa
Tšebeliso e Hlahang (5% empa e ntse e hola)
- Khatiso ea 3D: Likhoele tse matla haholo
- Lisebelisoa tsa elektroniki: Lifilimi tse sireletsang mocheso, likarolo tsa capacitor
- Matla a Nchafatsoang: Maqephe a ka morao a phanele ea letsatsi
5. Tsoelo-pele ea Botsitso
Mahlale a ho Sebelisa Hape
- Ho Sebelisa Hape ka Mechine (90% ea PET e Sebelisitsoeng Hape)
- Mokhoa oa ho hlatsoa-ho qhibilihisa-ho qhibilihisa
- Lijo tsa maemo a holimo li hloka ho hloekisoa haholo
- Ho Sebelisa Lik'hemik'hale Hape
- Glycolysis/depolymerization ho li-monomers
- Mekhoa e hlahang ea enzyme
PET e Thehiloeng ho Bio
- Likarolo tsa MEG tse 30% tse tsoang limela
- Theknoloji ea Coca-Cola ea PlantBottle™
- Tefiso ea hona joale ea litšenyehelo: 20-25%
6. Papiso le Li-plastiki tse ling
| Thepa | PET | HDPE | PP | PLA |
|---|---|---|---|---|
| Ho hlaka | E babatsehang | Ho se be le lesoba | E benyang | Ho lokile |
| Mocheso o Moholo oa Tšebeliso | 70°C | 80°C | 100°C | 55°C |
| Mokoallo oa oksijene | Ho lokile | Mafutsana | E itekanetseng | Mafutsana |
| Sekhahla sa ho Sebelisa Hape | 57% | 30% | 15% | <5% |
7. Tebello ea Bokamoso
PET e ntse e tsoela pele ho laola liphutheloana tse sebelisoang hanngoe ha e ntse e atoloha ho ba lits'ebetso tse tšoarellang ka:
- Mahlale a ntlafalitsoeng a thibelo (likoahelo tsa SiO₂, masela a mangata)
- Meralo ea motheo e tsoetseng pele ea ho sebelisa hape (PET e sebelisoang hape ka lik'hemik'hale)
- Liphetoho tsa tshebetso (di-nano-composites, di-impact modifiers)
Ka tekano ea eona e ikhethang ea ts'ebetso, ts'ebetso e bonolo le ho sebelisoa hape, PET e ntse e le ea bohlokoa moruong oa lefats'e oa polasetiki ha e ntse e fetohela ho mehlala ea tlhahiso e chitja.
Nako ea poso: Phupu-21-2025