1. Intshayelelo
I-Polyethylene terephthalate (PET) yenye yezona thermoplastics zisetyenziswa kakhulu kwihlabathi liphela. Njengezinto eziphambili zeebhotile zesiselo, ukupakishwa kokutya, kunye neefayibha ezenziweyo, i-PET idibanisa iipropati zomzimba ezintle kunye nokusebenziseka kwakhona. Eli nqaku lihlola iimpawu eziphambili ze-PET, iindlela zokucubungula, kunye nokusetyenziswa okwahlukeneyo kumashishini onke.
2. Iimpawu zezinto ezibonakalayo
Iipropati Zomzimba Nezoomatshini
- Umlinganiselo oPhakamileyo wamandla ukuya kubunzima: Amandla okuxinana angama-55-75 MPa
- Ukucaca: >90% yokudluliselwa kokukhanya (amanqanaba ekristale)
- Iimpawu zoMqobo: Ukumelana okuhle kwe-CO₂/O₂ (kuphuculwe ngeengubo)
- Ukumelana nobushushu: Ingalungiselelwa ukuya kuthi ga kwi-70°C (150°F) ngokuqhubekayo
- Ubuninzi: 1.38-1.40 g/cm³ (engaguqukiyo), 1.43 g/cm³ (ekristale)
Ukumelana neekhemikhali
- Ukumelana kakuhle namanzi, iialcohols, iioyile
- Ukumelana okuphakathi kwii-asidi/iziseko ezibuthathaka
- Ukungamelani kakuhle ne-alkalis enamandla, ezinye izinyibilikisi
Iprofayili yokusingqongileyo
- Ikhowudi yokurisayikilisha: #1
- Umngcipheko we-Hydrolysis: Uyancipha xa kushushu kakhulu/pH
- Ukukwazi ukuphinda usebenzise: Ingaphinda isetyenziswe izihlandlo ezisi-7 ukuya kwezili-10 ngaphandle kokulahlekelwa yimpahla enkulu
3. Iindlela zokuSebenza
| Indlela | Izicelo eziqhelekileyo | Izinto eziphambili ekufuneka ziqwalaselwe |
|---|---|---|
| Ukubumba i-Injection Stretch Blow | Iibhotile zesiselo | Ukujongwa kweBiaxial kuphucula amandla |
| Ukukhupha | Iifilimu, amaphepha | Ifuna ukupholisa ngokukhawuleza ukuze kucace |
| Ukujikelezisa iifayibha | Amalaphu (i-polyester) | Ukujikeleza ngesantya esiphezulu kwi-280-300°C |
| Ukulungisa iThermoforming | Iitreyi zokutya | Ukomisa kwangaphambili kubalulekile (≤50 ppm ukufuma) |
4. Izicelo Eziphambili
Ukupakishwa (73% yemfuno yehlabathi)
- Iibhotile zesiselo: iiyunithi ezingama-500 ezigidi ngonyaka
- Izikhongozeli zokutya: Iitreyi ezifakwa kwi-microwave, iishell zesaladi
- Amayeza: Iipakethi zeBlister, iibhotile zamayeza
Amalaphu (imfuno engama-22%)
- I-Polyester Fiber: Iimpahla, i-upholstery
- Iimpahla zobugcisa: Iibhanti zezihlalo, iibhanti zokuhambisa
- Izinto ezingalukwanga: Ii-Geotextiles, imidiya yokucoca
Ukusetyenziswa Okutsha (5% kodwa kuyakhula)
- Ukuprinta kwe-3D: Iintambo ezinamandla aphezulu
- Izixhobo ze-elektroniki: Iifilimu zokukhusela, izinto ze-capacitor
- Amandla aHlaziyiweyo: Iiphaneli zelanga
5. Uphuhliso Lozinzo
Iiteknoloji zokurisayikilisha
- Ukuphinda kusetyenziswe oomatshini (90% ye-PET ephinda isetyenziswe)
- Inkqubo yokunyibilikisa i-wash-flake
- Ukutya okusemgangathweni kufuna ukucocwa kakhulu
- Ukuphinda kusetyenziswe iikhemikhali
- I-Glycolysis/depolymerization ukuya kwi-monomers
- Iinkqubo ze-enzyme ezikhulayo
I-PET esekwe kwi-Bio
- Iinxalenye ze-MEG ezisuka kwizityalo ezingama-30%
- Itekhnoloji yeCoca-Cola's PlantBottle™
- Iprimiyamu yexabiso langoku: 20-25%
6. Uthelekiso neeplastiki ezizezinye
| Ipropati | I-PET | I-HDPE | PP | I-PLA |
|---|---|---|---|---|
| Ukucaca | Igqwesile | I-Opaque | Ikhanya ngokukhanya | Kulungile |
| Ubushushu bokusetyenziswa obuphezulu | 70°C | 80°C | 100°C | 55°C |
| Isithintelo seoksijini | Kulungile | Imbi | Iphakathi | Imbi |
| Izinga lokurisayikilisha | 57% | 30% | 15% | <5% |
7. Imbono yexesha elizayo
I-PET iyaqhubeka nokuba yinxalenye yokupakisha okusetyenziswa kanye ngelixa isanda iye kwiindawo ezihlala ixesha elide ngokusebenzisa:
- Ubuchwepheshe bokuthintelwa obuphuculweyo (iingubo zeSiO₂, iileya ezininzi)
- Iziseko zophuhliso zokuphinda usebenzise izinto ezisetyenzisiweyo (i-PET ephinda isetyenziswe ngeekhemikhali)
- Utshintsho ekusebenzeni (ii-nano-composites, izilungisi zempembelelo)
Ngenxa yokulinganisela kwayo ukusebenza, ukucutshungulwa kwayo kunye nokuphinde isetyenziswe, i-PET ihlala ibalulekile kuqoqosho lweplastiki lwehlabathi ngelixa itshintshela kwiimodeli zemveliso ezijikelezayo.
Ixesha leposi: Julayi-21-2025