Umgca wokukhupha iphepha le-PET/PLA
Ipharamitha yoBugcisa obuPhambili
| Imodeli | Imodeli yokukhupha | Ubukhulu beemveliso (mm) | Amandla enjini ephambili (kw) | Umthamo omkhulu wokukhupha (kg/h) |
| Umaleko omninzi | JWE75/40+JWE52/40-1000 | 0.15-1.5 | 132/15 | 500-600 |
| Umaleko omnye | JWE75/40-1000 | 0.15-1.5 | 160 | 450-550 |
| Isebenza kakuhle kakhulu | I-JWE95/44+I-JWE65/44-1500 | 0.15-1.5 | 250/75 | 1000-1200 |
| Isebenza kakuhle kakhulu | JWE110+JWE65-1500 | 0.15-1.5 | 355/75 | 1000-1500 |
Qaphela: Iinkcukacha zingatshintsha ngaphandle kwesaziso sangaphambili.
Ipharamitha yoBugcisa obuPhambili
| Imodeli | Umaleko omninzi | Umaleko omnye | Isebenza kakuhle kakhulu |
| Iinkcukacha ze-extruder | JW120/65-1000 | JW120-1000 | JW150-1500 |
| Ubukhulu bemveliso | 0.20-1.5mm | 0.2-1.5mm | 0.2-1.5mm |
| Amandla enjini aphambili | 132kw/45kw | 132kw | 200kw |
| Umthamo omkhulu wokukhupha | 600-700kg/h | 550-650kg/h | 800-1000kg/h |
Qaphela: Iinkcukacha zingatshintsha ngaphandle kwesaziso sangaphambili.
Iphepha le-PLA
I-PLA luhlobo lwee-Aliphatic Polyesters ezimile ngomgca. I-PLA ingasetyenziswa kwiphakheji eqinileyo yeziqhamo, imifuno, amaqanda, ukutya okuphekiweyo kunye nokutya okurostiweyo, ikwasetyenziselwa ukupakisha isandwich, iibhisikithi kunye nezinye iiphakheji ezifana neentyatyambo ezintsha.
Ingcaciso yeMveliso
I-polylactic acid (i-PLA) inokubola ngokupheleleyo ibe yi-carbon dioxide namanzi phantsi kweemeko zendalo emva kokuba ilahliwe. Inokumelana kakuhle namanzi, iipropati zoomatshini, iyahambelana ne-biochemical, inokufunxwa zizinto eziphilayo, kwaye ayinangcoliseko kwindalo. Kwangaxeshanye, i-PLA ikwanazo neepropati zoomatshini ezilungileyo. Inamandla aphezulu, iyaguquguquka kwaye izinzile kubushushu, i-plasticity, iyasebenziseka, ayitshintshi umbala, ingena kakuhle kwi-oksijini kunye nomphunga wamanzi, kwaye ibonakala kakuhle, ilwa nokungunda, ilwa neentsholongwane, ubomi benkonzo yiminyaka emi-2 ukuya kwe-3.
Eyona ndlela ibalulekileyo yokusebenza kwezinto zokupakisha kukungena komoya, kwaye indawo yokusetyenziswa kwezi zinto ekupakisheni inokuqinisekiswa ngokweendlela ezahlukeneyo zokungena komoya kwezinto. Ezinye izinto zokupakisha zifuna ukungena komoya ukuze zinike ioksijini eyaneleyo kwimveliso; ezinye izinto zokupakisha zifuna umqobo kwioksijini ngokwezinto ezisetyenziswayo, ezifana nokupakisha iziselo, ezifuna izinto ezinokuthintela ioksijini ukuba ingangeni kwiphakheji ukuze kuthintelwe isiphumo sokukhula kwesikhunta. I-PLA inomqobo wegesi, umqobo wamanzi, ukucaca kunye nokuprintwa kakuhle.
I-PLA inokukhanya okuhle kunye nokukhazimla, kwaye ukusebenza kwayo okugqwesileyo kufana ne-cellophane kunye ne-PET, engafumaneki kwezinye iiplastiki ezibolayo. Ukukhanya kunye nokukhazimla kwe-PLA kuphindwe ka-2 ~ 3 kunefilimu eqhelekileyo ye-PP kunye nokuphindwe ka-10 kune-LDPE. Ukukhanya kwayo okuphezulu kwenza ukubonakala kokusebenzisa i-PLA njengesixhobo sokupakisha kube kuhle. Umzekelo, isetyenziselwa ukupakisha iilekese. Okwangoku, iilekese ezininzi ezithengiswayo kwimarike zisebenzisa iifilimu zokupakisha ze-PLA.
Inkangeleko kunye nokusebenza kwale filimu yokupakisha kufana neefilimu zokupakisha iilekese zemveli, zicacile kakhulu, zigcina i-kink kakuhle, ziyakwazi ukuprintwa kwaye zinamandla, kunye neempawu ezibalaseleyo zokuthintela, ezinokugcina incasa yeelekese ngcono. Inkampani yaseJapan isebenzisa uphawu lwe-"racea" PLA lwe-American Cakir Dow Polymer Company njengezinto zokupakisha iimveliso ezintsha, kwaye ukupakisha kubonakala ngokucacileyo kakhulu. I-Toray Industries iphuhlise iifilimu ezisebenzayo ze-PLA kunye nezilayi zisebenzisa itekhnoloji yayo ye-nano-alloy. Le filimu inokumelana nobushushu kunye nefuthe elifanayo neefilimu ezisekwe kwi-petroleum, kodwa ikwanokuqina kunye nokucaca okugqwesileyo.
I-PLA ingenziwa ibe ziimveliso zefilimu ezibonakala ngokucacileyo, iipropati ezintle zokuthintela, ukucutshungulwa kakuhle kunye neepropati zoomatshini, kwaye ingasetyenziselwa ukupakisha iziqhamo kunye nemifuno ngendlela eguquguqukayo. Ingadala indawo efanelekileyo yokugcina iziqhamo kunye nemifuno, igcine imisebenzi yobomi beziqhamo kunye nemifuno, ilibazise ukuguga, kwaye igcine umbala, ivumba, incasa kunye nenkangeleko yeziqhamo kunye nemifuno. Nangona kunjalo, xa isetyenziswa kwizixhobo zokupakisha ukutya, kufuneka utshintsho oluthile ukuze luhambelane neempawu zokutya ngokwako, ukuze kufezekiswe isiphumo esingcono sokupakisha.
I-PLA inokwenza indawo ene-asidi encinci kumphezulu wemveliso, enesiseko se-antibacterial kunye ne-antifungal. Ukuba kusetyenziswa ezinye ii-antibacterial agents ukongeza, izinga le-antibacterial elingaphezulu kwe-90% linokufunyanwa, elinokusetyenziselwa ukupakisha iimveliso ze-antibacterial.
Xa kuthelekiswa nefilimu ye-LDPE, ifilimu ye-PLA kunye nefilimu ye-PLA/REO/TiO2, ukungena kwamanzi kwefilimu edityanisiweyo ye-PLA/REO/Ag kuphezulu kakhulu kunezinye iifilimu. Kugqitywe koku ukuba inokuthintela ngempumelelo ukwakheka kwamanzi aqunyiweyo kwaye ifezekise isiphumo sokuthintela ukukhula kweentsholongwane; kwangaxeshanye, ikwanayo nefuthe elihle kakhulu le-bacteriostatic.
Umgca wokukhupha iphepha le-PET/PLA lokusingqongileyo: I-JWELL iphuhlisa umgca wokukhupha izikrufu ezimbini ezilinganayo zephepha le-PET/PLA, lo mgca uxhotyiswe ngenkqubo yokukhupha igesi, kwaye akukho mfuneko yokomisa kunye neyunithi yokwenza i-crystallizing. Umgca wokukhupha uneempawu zokusebenzisa amandla aphantsi, inkqubo elula yemveliso kunye nokugcinwa okulula. Ulwakhiwo lwezikrufu oluhlukaniswe ngokwezigaba lunokunciphisa ukulahleka kwe-viscosity ye-PET/PLA resin, i-symmetrical kunye ne-thin-wall calender roller inyusa isiphumo sokupholisa kwaye iphucule umthamo kunye nomgangatho wephepha. I-feeder yedosi yamacandelo amaninzi inokulawula ipesenti yezinto ezingabonakaliyo, izinto zokuphinda zisetyenziswe kunye ne-master batch ngokuchanekileyo, iphepha lisetyenziswa kakhulu kushishino lokupakisha i-thermoforming.