Ibhodlela Lamanzi Ibanga le-PET Resin (PET)
Isingeniso Somkhiqizo
Ama-chips e-polyester esezingeni lebhodlela lamanzi alungele ukwenza amabhodlela okupakisha amanzi ahlanzekile, amanzi amaminerali emvelo, amanzi acwecwe, amanzi okuphuza, iziqukathi zokunambitheka nezinoswidi, ibhodlela lezimonyo nezinto ze-PET sheet njll.
Uhlobo lomkhiqizo lubonisa okuqukethwe kwensimbi esindayo ephansi, okuqukethwe okuphansi kwe-acetaldehyde, inani lombala elihle, i-viscosity eqinile.Ngeresiphi yenqubo eyingqayizivele kanye nobuchwepheshe obuthuthukisiwe bokukhiqiza, umkhiqizo unezici ezinhle kakhulu zokucubungula, izinga lokushisa eliphansi lokucubungula, ububanzi bokucubungula, ukukhanya okuhle kakhulu kanye nezinga eliphezulu lomkhiqizo oqediwe.Ekwenzeni amabhodlela, umkhiqizo unokuwohloka okuncane kanye nokuqukethwe okuphansi kwe-acetaldehyde.Ngenkathi iqinisekisa ukuphepha kanye nenhlanzeko, ingagcina ngempumelelo ukunambitheka okuyingqayizivele kwamanzi ahlanzekile, amanzi amaminerali namanzi acwecwe.
Inkomba yezobuchwepheshe
| Ttem | Iyunithi | Inkomba | Indlela yokuhlola | |
| I-Intrinsic Viscosity (Uhwebo Lwangaphandle) | dL/g | 0.800±0.02 | GB17931 | |
| Okuqukethwe kwe-acetaldehyde | ppm | <1 | I-chromatography yegesi | |
| Inani lombala | L | - | > 82 | I-HunterLab |
| b | - | <1 | I-HunterLab | |
| Iqembu lokugcina le-Carboxyl | mmol/kg | <30 | I-Photometric titration | |
| Iphoyinti lokuncibilika | °C | 243 ±2 | I-DSC | |
| Okuqukethwe kwamanzi | wt% | <0.2 | Indlela yesisindo | |
| Uthuli lwempushana | PPm | <100 | Indlela yesisindo | |
| Wt.ama-chips angu-100 | g | 1.55±0.10 | Indlela yesisindo | |
Izimo Ezijwayelekile Zokucubungula
Ukomisa kuyadingeka ngaphambi kokucubungula ukuncibilika ukuvimbela i-resin kusuka ku-hydrolysis.Izimo ezijwayelekile zokomisa ukushisa komoya okungu-160-180 ° C, isikhathi sokuhlala samahora angu-4-6, izinga lokushisa lamazolo elingaphansi -40 *C.
Izinga lokushisa lomphongolo elijwayelekile lingaba ngu-275-293°C.
