Umugqa Wokunwetshwa Kweshidi le-PET/PLA
Ipharamitha Eyinhloko Yobuchwepheshe
| Imodeli | Imodeli yokukhipha | Ubukhulu bemikhiqizo (mm) | Amandla amakhulu enjini (kw) | Umthamo omkhulu wokukhipha (kg/h) |
| Izendlalelo eziningi | JWE75/40+JWE52/40-1000 | 0.15-1.5 | 132/15 | 500-600 |
| Isendlalelo esisodwa | I-JWE75/40-1000 | 0.15-1.5 | 160 | 450-550 |
| Isebenza kahle kakhulu | I-JWE95/44+I-JWE65/44-1500 | 0.15-1.5 | 250/75 | 1000-1200 |
| Isebenza kahle kakhulu | I-JWE110+I-JWE65-1500 | 0.15-1.5 | 355/75 | 1000-1500 |
Qaphela: Imininingwane ingashintsha ngaphandle kwesaziso sangaphambilini.
Ipharamitha Eyinhloko Yobuchwepheshe
| Imodeli | Izendlalelo eziningi | Isendlalelo esisodwa | Isebenza kahle kakhulu |
| Imininingwane ye-extruder | JW120/65-1000 | JW120-1000 | JW150-1500 |
| Ubukhulu bomkhiqizo | 0.20-1.5mm | 0.2-1.5mm | 0.2-1.5mm |
| Amandla amakhulu enjini | 132kw/45kw | 132kw | 200kw |
| Umthamo omkhulu wokukhipha | 600-700kg/h | 550-650kg/h | 800-1000kg/h |
Qaphela: Imininingwane ingashintsha ngaphandle kwesaziso sangaphambilini.
Ishidi le-PLA
I-PLA uhlobo lwama-Aliphatic Polyester anomumo womugqa. I-PLA ingasetshenziswa emaphaketheni aqinile ezithelo, imifino, amaqanda, ukudla okuphekiwe kanye nokudla okuthosiwe, futhi ingasetshenziswa ekupakisheni amasangweji, amabhisikidi kanye namanye amaphakheji afana nezimbali ezintsha.
Incazelo Yomkhiqizo
I-polylactic acid (i-PLA) ingabola ngokuphelele ibe yi-carbon dioxide namanzi ngaphansi kwezimo zemvelo ngemva kokulahlwa. Inokumelana okuhle namanzi, izakhiwo zemishini, ukuhambisana kwezinto eziphilayo, ingamuncwa izinto eziphilayo, futhi ayinakho ukungcola kwemvelo. Ngesikhathi esifanayo, i-PLA nayo inezakhiwo ezinhle zemishini. Inamandla aphezulu okuthinta, ukuguquguquka okuhle kanye nokuzinza kokushisa, i-plasticity, ukucutshungulwa, akukho ukushintsha kombala, ukungena kahle komoya-mpilo kanye nomhwamuko wamanzi, kanye nokubonakala okuhle, ukulwa nokukhunta, ukulwa namagciwane, impilo yenkonzo yiminyaka emi-2 kuya kwemi-3.
Inkomba yokusebenza ebaluleke kakhulu yezinto zokupakisha ukuvuleka komoya, futhi insimu yokusetshenziswa kwale nto ekupakisheni inganqunywa ngokuya ngokuvuleka komoya okuhlukile kwezinto. Ezinye izinto zokupakisha zidinga ukuvuleka komoya ukuze zinikeze umoya-mpilo owanele kumkhiqizo; ezinye izinto zokupakisha zidinga isithiyo kumoya-mpilo ngokwezinto zokwakha, njengokupakisha iziphuzo, okudinga izinto ezingavimbela umoya-mpilo ukuthi ungene ephaketheni ukuze kuvinjelwe umphumela wokukhula kwesikhunta. I-PLA inesithiyo segesi, isithiyo samanzi, ukucaca kanye nokuphrinta okuhle.
I-PLA inokukhanya okuhle nokucwebezelayo, futhi ukusebenza kwayo okuhle kakhulu kufana ne-cellophane ne-PET, engatholakali kwamanye amapulasitiki abolayo. Ukucaca nokucwebezela kwe-PLA kuphindwe izikhathi ezingu-2 ~ 3 kunefilimu evamile ye-PP kanye nokuphindwe izikhathi ezingu-10 kune-LDPE. Ukucaca kwayo okuphezulu kwenza ukubonakala kokusebenzisa i-PLA njengento yokupakisha kube kuhle. Isibonelo, isetshenziselwa ukupakisha amaswidi. Njengamanje, amaphakethe amaningi amaswidi emakethe asebenzisa amafilimu okupakisha e-PLA.
Ukubukeka nokusebenza kwale filimu yokufaka kufana namafilimu okupakisha amaswidi endabuko, anokukhanya okuphezulu, ukugcinwa kwe-kink okuhle kakhulu, ukuphrinta namandla, kanye nezakhiwo ezinhle kakhulu zokuvimbela, ezingagcina ukunambitheka kwamaswidi kangcono. Inkampani yaseJapan isebenzisa uhlobo lwe-"racea" PLA lwe-American Cakir Dow Polymer Company njengezinto zokupakisha zemikhiqizo emisha, futhi ukupakisha kusobala kakhulu ngokubukeka. I-Toray Industries ithuthukise amafilimu nezingcezu ezisebenzayo ze-PLA isebenzisa ubuchwepheshe bayo be-nano-alloy obukhethekile. Le filimu inokumelana nokushisa kanye nomthelela okufanayo namafilimu asekelwe ku-petroleum, kodwa futhi inokuguquguquka okuhle kanye nokucaca.
I-PLA ingenziwa ibe yimikhiqizo yefilimu enokucaca okuphezulu, izakhiwo ezinhle zokuvimbela, ukucutshungulwa okuhle kakhulu kanye nezakhiwo zemishini, futhi ingasetshenziswa ekupakisheni izithelo nemifino okuguquguqukayo. Ingadala indawo efanelekile yokugcina izithelo nemifino, igcine imisebenzi yokuphila yezithelo nemifino, ibambezele ukuguga, futhi igcine umbala, iphunga, ukunambitheka kanye nokubukeka kwezithelo nemifino. Kodwa-ke, uma isetshenziswa ezintweni zangempela zokupakisha ukudla, kudingeka izinguquko ezithile ukuze zivumelane nezici zokudla uqobo, ukuze kufezwe umphumela ongcono wokupakisha.
I-PLA ingakha indawo ene-asidi encane ebusweni bomkhiqizo, enesisekelo sokulwa namagciwane kanye nokulwa namagciwane. Uma kusetshenziswa amanye ama-antibacterial agents ngaphezu kwalokho, izinga lokulwa namagciwane elingaphezu kuka-90% lingatholakala, elingasetshenziswa ekupakisheni imikhiqizo elwa namagciwane.
Uma kuqhathaniswa nefilimu ye-LDPE, ifilimu ye-PLA kanye nefilimu ye-PLA/REO/TiO2, ukungena kwamanzi kwefilimu ehlanganisiwe ye-PLA/REO/Ag kuphakeme kakhulu kunokwamanye amafilimu. Kuphethwa ngalokhu ukuthi kungavimbela ngempumelelo ukwakheka kwamanzi ahlanganisiwe futhi kufeze umphumela wokuvimbela ukukhula kwamagciwane; ngesikhathi esifanayo, futhi kunomphumela omuhle kakhulu we-bacteriostatic.
Umugqa wokukhipha ishidi lemvelo le-PET/PLA: I-JWELL ithuthukisa umugqa wokukhipha i-parallel twin screw weshidi le-PET/PLA, lo mugqa uhlonyiswe ngohlelo lokukhipha igesi, futhi awudingi ukomisa nokubumba i-crystal. Umugqa wokukhipha unezakhiwo zokusebenzisa amandla aphansi, inqubo yokukhiqiza elula kanye nokugcinwa okulula. Isakhiwo se-screw esihlukanisiwe singanciphisa ukulahleka kwe-viscosity ye-PET/PLA resin, i-symmetrical kanye ne-thin-wall calender roller ikhulisa umphumela wokupholisa futhi ithuthukise umthamo kanye nekhwalithi yeshidi. I-feeder yokulinganisa izingxenye eziningi ingalawula iphesenti lezinto ezibonakalayo, izinto zokuvuselela kanye ne-master batch ngokunembile, ishidi lisetshenziswa kabanzi embonini yokupakisha ye-thermoforming.