1. Mawu Oyamba
Polyethylene terephthalate (PET) ndi imodzi mwazitsulo zosunthika komanso zogwiritsidwa ntchito kwambiri padziko lonse lapansi. Monga zida zoyambira mabotolo a zakumwa, kuyika zakudya, ndi ulusi wopangira, PET imaphatikiza mawonekedwe abwino kwambiri komanso obwezeretsanso. Nkhaniyi ikuyang'ana mikhalidwe yayikulu ya PET, njira zosinthira, ndikugwiritsa ntchito mosiyanasiyana m'mafakitale.
2. Zinthu Zakuthupi
Zakuthupi & Zimango
- Kuchuluka kwa Mphamvu-kulemera Kwambiri: Kuthamanga kwamphamvu kwa 55-75 MPa
- Kumveka:> 90% kufala kwa kuwala (makalasi a crystalline)
- Zolepheretsa: Kukana kwa CO₂/O₂ kwabwino (kokulitsidwa ndi zokutira)
- Kukaniza kwa Matenthedwe: Kutha kugwira ntchito mpaka 70°C (150°F) mosalekeza
- Kachulukidwe: 1.38-1.40 g/cm³ (amorphous), 1.43 g/cm³ (crystalline)
Kukaniza Chemical
- Kukana kwabwino kwa madzi, mowa, mafuta
- Kukana kwapakatikati kwa ma acid / maziko ofooka
- Kulephera kukana ma alkali amphamvu, zosungunulira zina
Mbiri Yachilengedwe
- Khodi Yobwezeretsanso: #1
- Chiwopsezo cha Hydrolysis: Zimawonongeka pakutentha kwambiri/pH
- Recyclability: Itha kukonzedwanso nthawi 7-10 popanda kuwonongeka kwakukulu kwa katundu
3. Njira Zopangira
| Njira | Ntchito Zofananira | Mfundo zazikuluzikulu |
|---|---|---|
| Jekeseni Wotambasula Kuwomba Kuumba | Mabotolo a zakumwa | Kuwongolera kwa Biaxial kumawonjezera mphamvu |
| Extrusion | Mafilimu, mapepala | Pamafunika kuziziritsa mwachangu kuti zimveke bwino |
| Fiber Spinning | Zovala (polyester) | Kuthamanga kwakukulu kwa 280-300 ° C |
| Thermoforming | Matayala a chakudya | Kuyanika kusanachitike ndikofunikira (≤50 ppm chinyezi) |
4. Ntchito Zazikulu
Kupaka (73% ya zofuna zapadziko lonse)
- Mabotolo a Chakumwa: Mayunitsi 500 biliyoni pachaka
- Zotengera Chakudya: Ma tray opangidwa ndi Microwavable, ma clamshells a saladi
- Mankhwala: Matuza mapaketi, mabotolo amankhwala
Zovala (22% amafuna)
- Polyester Fiber: Zovala, upholstery
- Zovala Zaukadaulo: Malamba ampando, malamba onyamula
- Nonwovens: Geotextiles, media media
Zogwiritsidwa Ntchito Zomwe Zikubwera (5% koma zikukula)
- Kusindikiza kwa 3D: Filaments zamphamvu kwambiri
- Zamagetsi: Makanema oteteza, zida za capacitor
- Mphamvu Zongowonjezera: Zotsalira za solar panel
5. Kupititsa patsogolo Kukhazikika
Recycling Technologies
- Mechanical Recycling (90% ya PET yobwezerezedwanso)
- Sambani-flake-kusungunuka ndondomeko
- Chakudya chimafuna kuyeretsa kwambiri
- Chemical Recycling
- Glycolysis/depolymerization kwa ma monomers
- Njira zopangira ma enzymatic
Bio-based PET
- 30% yochokera ku mbewu ya MEG zigawo
- Tekinoloje ya Coca-Cola's PlantBottle™
- Mtengo wamakono: 20-25%
6. Kuyerekeza ndi Alternative Plastics
| Katundu | PET | Zithunzi za HDPE | PP | PLA |
|---|---|---|---|---|
| Kumveka bwino | Zabwino kwambiri | Opaque | Zowoneka bwino | Zabwino |
| Max Gwiritsani Ntchito Temp | 70°C | 80°C | 100°C | 55°C |
| Cholepheretsa Oxygen | Zabwino | Osauka | Wapakati | Osauka |
| Mtengo Wobwezeretsanso | 57% | 30% | 15% | <5% |
7. Tsogolo la Tsogolo
PET ikupitilizabe kulamulira makina ogwiritsa ntchito kamodzi pomwe ikukula kukhala ntchito zolimba kudzera:
- Matekinoloje otchinga (zopaka za SiO₂, multilayer)
- Advanced zobwezeretsanso zomangamanga (PET zobwezerezedwanso ndi mankhwala)
- Kusintha kwa magwiridwe antchito (nano-composites, zosintha zamphamvu)
Ndi magwiridwe ake apadera a magwiridwe antchito, kutheka komanso kubwezeredwa, PET ikadali yofunika kwambiri pazachuma chapulasitiki chapadziko lonse lapansi pomwe ikusintha kupita kumitundu yopanga zozungulira.
Nthawi yotumiza: Jul-21-2025