1. Isingeniso
I-Polyethylene terephthalate (PET) ingenye ye-thermoplastics eguquguqukayo futhi esetshenziswa kabanzi emhlabeni. Njengento eyinhloko yamabhodlela esiphuzo, ukupakishwa kokudla, namafayibha okwenziwa, i-PET ihlanganisa izakhiwo ezinhle kakhulu zomzimba nokusebenziseka kabusha. Lesi sihloko sihlola izici ezibalulekile ze-PET, izindlela zokucubungula, nezinhlelo zokusebenza ezihlukene kuzo zonke izimboni.
2. Izinto ezibonakalayo
Izakhiwo Zomzimba Nezomshini
- I-High Strength-to-weight Ratio: Amandla aqinile angama-55-75 MPa
- Ukucaca: > 90% ukukhanya okudluliswayo (amabanga e-crystalline)
- Izakhiwo Zokunqanda: Ukumelana okuhle kwe-CO₂/O₂ (okuthuthukisiwe ngama-coatings)
- I-Thermal Resistance: Iseviswa kufika ku-70°C (150°F) ngokuqhubekayo
- Ukuminyana: 1.38-1.40 g/cm³ (amorphous), 1.43 g/cm³ (crystalline)
Ukumelana Kwamakhemikhali
- Ukumelana okuhle kakhulu kwamanzi, utshwala, amafutha
- Ukumelana okumaphakathi kuma-asidi/izisekelo ezibuthakathaka
- Ukumelana okungalungile kwama-alkali aqinile, amanye ama-solvents
Iphrofayili Yezemvelo
- Ikhodi Yokugaywa kabusha: #1
- Ingozi ye-Hydrolysis: Yehlisa izinga lokushisa eliphezulu/pH
- Ukusebenziseka kabusha: Kungacutshungulwa kabusha izikhathi eziyisi-7-10 ngaphandle kokulahlekelwa okukhulu kwempahla
3. Izindlela Zokucubungula
| Indlela | Izicelo Ezijwayelekile | Ukucatshangelwa Okubalulekile |
|---|---|---|
| Ukubunjwa kwe-Stretch Stretch Blow | Amabhodlela eziphuzo | I-Biaxial orientation ithuthukisa amandla |
| I-Extrusion | Amafilimu, amashidi | Idinga ukupholisa ngokushesha ukuze kucace |
| I-Fiber Spinning | Izindwangu (i-polyester) | Ukuphotha ngesivinini esiphezulu ku-280-300°C |
| I-Thermoforming | Amathreyi okudla | Ukomisa kusengaphambili kubalulekile (≤50 ppm umswakama) |
4. Izicelo Ezinkulu
Ukupakishwa (73% wesidingo somhlaba)
- Amabhodlela Okuphuza: amayunithi ayizigidi eziyizinkulungwane ezingama-500 ngonyaka
- Iziqukathi Zokudla: Amathreyi ashintshwayo, amagobolondo esaladi
- Ezemithi: Amabhamuza amaphakethe, amabhodlela emithi
Izindwangu (isidingo esingu-22%)
- I-Polyester Fiber: Izingubo, i-upholstery
- Izindwangu Zobuchwepheshe: Amabhande ezihlalo, amabhande okuthutha
- Ama-Nonwovens: I-Geotextiles, imidiya yokuhlunga
Ukusetshenziswa Okusafufusa (5% kodwa kuyakhula)
- Ukuphrinta kwe-3D: Imicu yamandla aphezulu
- I-elekthronikhi: Amafilimu avikelayo, izingxenye ze-capacitor
- Amandla Avuselelekayo: Ama-backsheets ephaneli yelanga
5. Intuthuko Eqhubekayo
Recycling Technologies
- I-Mechanical Recycling (90% ye-PET egaywe kabusha)
- Inqubo ye-Wash-flake-melt
- Izinga lokudla lidinga ukuhlanzeka okukhulu
- I-Chemical Recycling
- I-Glycolysis/depolymerization kuma-monomers
- Izinqubo ze-enzymatic ezikhulayo
I-Bio-Based PET
- 30% izingxenye ze-MEG ezithathwe esitshalweni
- Ubuchwepheshe be-Coca-Cola's PlantBottle™
- Izindleko zamanje: 20-25%
6. Ukuqhathanisa ne-Alternative Plastics
| Impahla | I-PET | I-HDPE | PP | I-PLA |
|---|---|---|---|---|
| Ukucaca | Kuhle kakhulu | Opaque | I-Translucent | Kuhle |
| I-Max Sebenzisa I-Temp | 70°C | 80°C | 100°C | 55°C |
| Isithiyo Somoya | Kuhle | Impofu | Kuphakathi | Impofu |
| Isilinganiso Sokugaywa kabusha | 57% | 30% | 15% | <5% |
7. I-Future Outlook
I-PET iyaqhubeka nokubusa ukusetshenziswa okukodwa ngenkathi inweba ezinhlelweni ezihlala isikhathi eside ngokusebenzisa:
- Ubuchwepheshe bokuvimbela okuthuthukisiwe (i-SiO₂ coatings, multilayer)
- Ingqalasizinda yokuvuselela kabusha ethuthukisiwe (i-PET egaywe kabusha ngamakhemikhali)
- Ukulungiswa kokusebenza (ama-nano-composites, izilungisi zomthelela)
Ngebhalansi yayo eyingqayizivele yokusebenza, ukucutshungulwa kanye nokusetshenziswa kabusha, i-PET isalokhu ibalulekile emnothweni wepulasitiki womhlaba ngenkathi iguqukela kumamodeli okukhiqiza ayindilinga.
Isikhathi sokuthumela: Jul-21-2025