1. Nhanganyaya
Polyethylene terephthalate (PET) ndeimwe yemhando dzakasiyana-siyana pasi rose uye inoshandiswa zvakanyanya thermoplastics. Sezvinhu zvekutanga zvemabhodhoro ezvinwiwa, kurongedza chikafu, uye mafiber ekugadzira, PET inosanganisa yakanakisa zvimiro zvemuviri nekudzoreredza. Ichi chinyorwa chinoongorora maitiro akakosha ePET, nzira dzekugadzirisa, uye mashandisirwo akasiyana mumaindasitiri.
2. Zvinhu Zvokuita
Zvenyama & Mechanical Properties
- Yakakwirira Simba-ku-Weight Ratio: Tensile simba re55-75 MPa
- Kujeka:> 90% kufambisa kwechiedza (crystalline mamakisi)
- Zvipingamupinyi Zvivakwa: Yakanaka CO₂/O₂ kuramba (yakakwidziridzwa nemabhandi)
- Thermal Resistance: Inoshanda kusvika 70°C (150°F) inoenderera
- Density: 1.38-1.40 g/cm³ (amorphous), 1.43 g/cm³ (crystalline)
Chemical Resistance
- Kupokana kwakanakisa kumvura, doro, mafuta
- Kuramba kuri pakati nepakati kune isina simba acids/mabhesi
- Kusagadzikana kupikisa kune alkali yakasimba, mamwe masolvents
Environmental Profile
- Recycling Code: #1
- Hydrolysis Ngozi: Inodzikisira pakupisa kwakanyanya/pH
- Recyclability: Inogona kudzokororwa 7-10 nguva pasina kurasikirwa kukuru kwepfuma
3. Maitiro ekugadzirisa
| Nzira | Typical Applications | Pfungwa Huru |
|---|---|---|
| Jekiseni Stretch Blow Molding | Zvinwiwa mabhodhoro | Biaxial orientation inovandudza simba |
| Extrusion | Mafirimu, mapepa | Inoda kutonhora nekukurumidza kuti ijekese |
| Fiber Spinning | Micheka (polyester) | High-speed kutenderera pa280-300°C |
| Thermoforming | Matireyi echikafu | Pre-drying yakakosha (≤50 ppm mwando) |
4. Zvikumbiro Zvakakura
Packaging (73% yezvinodiwa pasi rose)
- Zvinwiwa Mabhodhoro: 500 bhiriyoni zvikamu pagore
- Zvokudya Zvokudya: Microwavable trays, saladhi clamshells
- Pharmaceutical: Blister mapaketi, mabhodhoro emishonga
Micheka (22% inoda)
- Polyester Fiber: Zvipfeko, upholstery
- Technical Textiles: Seatbelts, conveyor belt
- Nonwovens: Geotextiles, filtration media
Emerging Use (5% asi kukura)
- 3D Kudhinda: High-simba filaments
- Electronics: Insulating mafirimu, capacitor zvikamu
- Renewable Energy: Solar panel backsheets
5. Sustainability Advancements
Recycling Technologies
- Mechanical Recycling (90% yePET yakadzokororwa)
- Wash-flake-melt process
- Chikafu-giredhi chinoda super-kuchenesa
- Chemical Recycling
- Glycolysis / depolymerization kune monomers
- Emerging enzymatic process
Bio-Yakavakirwa PET
- 30% yemiti-yakatorwa MEG zvikamu
- Coca-Cola's PlantBottle™ tekinoroji
- Yazvino mutengo premium: 20-25%
6. Kuenzanisa neAlternative Plastics
| Property | PET | HDPE | PP | PLA |
|---|---|---|---|---|
| Kujeka | Excellent | Opaque | Translucent | Kugona |
| Max Shandisa Temp | 70°C | 80°C | 100°C | 55°C |
| Oxygen Barrier | Kugona | Murombo | Pakati nepakati | Murombo |
| Recycling Rate | 57% | 30% | 15% | <5% |
7. Ramangwana Outlook
PET inoramba ichitonga-yekushandisa kurongedza uku ichiwedzera kuita yakasimba maapplication kuburikidza:
- Enhanced barrier technologies (SiO₂ coatings, multilayer)
- Yepamberi yekudzokorodza zvivakwa (kemikari yakadzokororwa PET)
- Magadzirirwo ekuita (nano-composites, maitiro ekugadzirisa)
Iine yakasarudzika chiyero chekuita, kugadzirisa uye kudzokorodza, PET inoramba ichikosha muhupfumi hwepurasitiki hwepasirese ichichinjika kuenda kumamodeli ekugadzira anotenderera.
Nguva yekutumira: Jul-21-2025