Ifilimu le-Plastic Composite iyinto esetshenziswa kakhulu yokufaka yokufaka ukupakishwa okungazweli kabusha. Ukuphindiselwa nokushisa inzalo kuyinqubo ebalulekile yokufaka ukudla okushisa okuphezulu. Kodwa-ke, izakhiwo ezibonakalayo zamafilimu ahlanganisiwe epulasitiki athambekele ekuboleni okushisayo ngemuva kokufudumala, okuholela ezintweni zokupakisha ezingafaneleki. Le ndatshana ihlaziya izinkinga ezijwayelekile ngemuva kokupheka kwezikhwama zokushintshana okushisa kakhulu, futhi zethula izindlela zabo zokuhlola ukusebenza komzimba, ngethemba lokuthola ukubaluleka kokukhiqizwa kwangempela.
Amaphakethe wokupakisha wokushisa aphezulu avimbela izinga lokuphumula yifomu lokupakisha elivame ukusetshenziselwa inyama, imikhiqizo ye-soy kanye neminye umkhiqizo wokudla okulungele ukudla. Ngokuvamile i-vacuum igcwele futhi ingagcinwa emazingeni okushisa asekamelweni ngemuva kokufudumala futhi inzalo emazingeni okushisa aphezulu (100 ~ 135 ° C). Ukudla okuhambisanayo okuvinjelwe kalula kulula ukuthwala, ukulungele ukudla ngemuva kokuvula isikhwama, inhlanzeko futhi kube lula, futhi kungagcina ukunambitheka kokudla, ngakho-ke kuthandwa kakhulu ngabathengi. Ngokuya ngenqubo yokufaka inzalo kanye nezinto zokupakisha, impilo yeshelufu yemikhiqizo yokuphamba kabusha yokuhambisa kabusha isukela ngengxenye yonyaka kuya eminyakeni emibili kuya eminyakeni emibili.
Inqubo yokupakisha yokudla okuphoqelekile ukwenziwa kwesikhwama, i-bagging, i-vacuumbing, ukubekwa uphawu kokushisa, ukuhlolwa, ukupheka nokushisa inzalo, ukomisa nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, nokupholisa, ukupakisha. Ukupheka nokushisa inzalo kuyinqubo eyisisekelo yenqubo yonke. Kodwa-ke, lapho izikhwama zokupakisha ezenziwe ngezinto ze-polymer - amapulasitiki, ukunyakaza kwama-molecular, ukunyakaza kwama-molecular kuqinisa ngemuva kokufudunyezwa, kanye nezinto ezibonakalayo zezinto ezibonakalayo zithambekele ekufakweni okushisayo. Le ndatshana ihlaziya izinkinga ezijwayelekile ngemuva kokupheka kwezikhwama zokuhlola okushisa kakhulu, futhi zethula izindlela zabo zokuhlola ukusebenza komzimba.
1. Ukuhlaziywa kwezinkinga ezijwayelekile ngezikhwama zokufaka izindlu zokuphindaphinda
Ukudla okushisa okuphezulu kwe-retort kuhlanganiswe bese kufuthelwa futhi inzalo ndawonye nezinto zokwakha. Ukuze uzuze izakhiwo eziphakeme ezibonakalayo kanye nezakhiwo ezinhle zokuvimbela, ukufakwa okuvinjezelwa kabusha kwenziwa ngezinto ezahlukahlukene eziyisisekelo. Izinto ezisetshenziswayo ezisetshenziswayo zifaka phakathi i-PA, isilwane, i-al ne-CPP. Izakhiwo ezisetshenziswayo ezisetshenziswayo zinezendlalelo ezimbili zamafilimu ahlanganisiwe, nezibonelo ezilandelayo (i-bopa / CPP, ifilimu eliphakeme le-PPP (i-PEP / CPP) nefilimu elihlanganisiwe le-PPP) ne-PIT / PPP). Ekukhiqizweni kwangempela, izinkinga zekhwalithi ezivame kakhulu ziyimibimbi, izikhwama eziphukile, ukuvuza komoya nephunga ngemuva kokupheka:
1). Kunezindlela ezintathu ezinemigqa ezikhwameni zokupakisha: imibimbi evundlile noma emile noma engajwayelekile ekuphaketheni impahla; imibimbi kanye nemifantu kungqimba ngalinye eliyinhlanganisela kanye nefulethi elimpofu; I-Shrinkage ye-PackAging Base Material, kanye ne-shrinkage yesendlalelo senhlanganisela nezinye izingqimba zenhlanganisela ezihlukile, ezimthendelwe. Izikhwama ezaphukile zihlukaniswe ngezinhlobo ezimbili: Ukuqhuma okuqondile nokushaya ngamandla bese kuqhuma.
2) .Delamination kubhekiswa emcimbini wokuthi izingqimba zezinhlanganisela zezinto ezihlanganisiwe zihlukaniswe komunye nomunye. Ukulimala okuncane kubonakaliswa njengama-bulgen afana nama-stripe ezingxenyeni ezicindezelekile zokupakishwa, futhi amandla ekhanda ancishisiwe, futhi angadangala kahle ngesandla. Ezimweni ezinzima, ungqimba lwenhlanganisela lokuhlanganisa luhlukaniswe endaweni enkulu ngemuva kokupheka. Uma kuqubuka ukuncipha, ukuqiniswa kwe-synergistic kwezindawo ezibonakalayo phakathi kwezendlalelo zezinhlanganisela zezinto ezihlanganisiwe kuzonyamalala, futhi izakhiwo ezibonakalayo nezinto ezivilaphayo zizokwehla kakhulu, zivame ukubangela ukulahleka okukhulu ebhizinisini.
3) .slight air ukuvuza ngokuvamile kunesikhathi sokufakwa okunesikhathi eside futhi akulula ukuthola ngesikhathi sokupheka. Ngesikhathi sokujikeleza komkhiqizo nesikhathi sokugcina, izinga le-vacuum lomkhiqizo liyancipha futhi umoya osobala uvela emaphaketheni. Ngakho-ke, le nkinga yekhwalithi ivame ukubandakanya inani elikhulu lemikhiqizo. imikhiqizo inomthelela omkhulu. Ukuvela kokuvuza komoya kuhlobene kakhulu nokushisa okubusayo nokumelana okumpofu kwe-puncture yesikhwama se-retort.
4). I-ODOR ngemuva kokupheka nayo inkinga evamile yekhwalithi. Iphunga eliyingqayizivele elivela ngemuva kokupheka lihlobene nezinsalela ze-solvent ngokweqile ezindaweni zokupakisha noma ekukhetheni okungafanele kwezinto ezibonakalayo. Uma ifilimu ye-PE isetshenziswa njengesendlalelo sangaphakathi sokuvalwa kwezikhwama zokuphumula eziphezulu ngenhla kwe-120 °, ifilimu ye-PE ithambekelephuku kuphunga eliphakeme lokushisa okuphezulu. Ngakho-ke, i-RCPP ikhetheke njengesendlalelo sangaphakathi sezikhwama zokupheka zokuphumula eziphezulu.
2. Izindlela zokuhlola zezakhiwo ezibonakalayo zokuphaphama okuvinjezelwa kabusha
Izici eziholela ezinkingeni zekhwalithi zokuphangwa kabusha ziyinkimbinkimbi futhi zibandakanya izici eziningi ezifana nezinto zokwakha ezihlanganayo, ezinamathela, insizakalo yokulawula inqubo, kanye nokuphinda usebenzise izinqubo. Ukuze kuqinisekiswe ikhwalithi yokufaka indawo yokuhlala kanye nempilo yeshelufu yokudla, kuyadingeka ukwenza izivivinyo zokumelana nokupheka ngezinto zokupakisha.
I-National Standard esetshenziswayo kwizikhwama zokufaka ezingamelana ne-retort-spakerating is GB / T10004-2008 "Ifilimu elihlanganisiwe lePlasitiki lokufaka" amafilimu ajwayelekile we-GIS Z 1707-1997 "asuselwa ku- I-GB / T10005-1998 "I-BIAXETED EXTSPRYLEne Film / I-Low density polyethylene amafilimu kanye nezikhwama". I-GB / T 10004-2008 ifaka phakathi izakhiwo ezahlukahlukene zomzimba kanye nezinkomba zezinsalela ze-solvent zamafilimu okuhambisa kabusha avimbela izikhwama nezikhwama, futhi kudinga ukuthi izikhwama zokupakisha ezingamelana nazo zihlolwe ngokumelana nemidiya yokushisa ephezulu. Indlela ukugcwalisa izikhwama zokupakisha ezingamelana ne-retort-acetic acid, 1% sodium sulfide, u-5% we-sodium chloride kanye namafutha zemifino, bese ucindezela unamathisele ebhodweni lokupheka eliphakeme ku-121 ° C imizuzu engama-40, futhi upholile ngenkathi ingcindezi ihlala ingashintshiwe. Lapho-ke ukubonakala kwalo, amandla ashubile, ukusunduza, ukukhohlisa amandla kanye namandla okushisa okushisa kuyahlolwa, futhi izinga lokuwohloka kusetshenziselwa ukulihlola. Ifomula imi kanjena:
R = (ab) / a × 100
Kufomula, r yizinga lokuwohloka (%) kwezinto ezihloliwe, inani eliphakathi lezinto ezihloliwe ngaphambi kokuhlolwa okuphakathi okuvikelekile okuphezulu; B inani elijwayelekile lezinto ezihloliwe ngemuva kokuhlolwa okuphakathi okuphakathi nendawo. Izidingo zokusebenza yilezi: "Ngemuva kokuhlolwa kokumelana nokushisa okuphezulu kwe-dielectric wokuphikisana, imikhiqizo enokushisa kwensiza kwe-80 ° C noma ngaphezulu akufanele ibe nokuncipha, ukuncipha kwamandla, ukuncipha kwamandla ekhefu, kanye namandla okushisa ahamba ngezinyawo.
I-3. Ukuhlolwa kwezindawo ezibonakalayo zezikhwama zokuhambisa kabusha
Ukuhlolwa kwangempela emshinini kungakuthola ngempela ukusebenza okuphelele kokuphapha okuvinjelwe kabusha. Kodwa-ke, le ndlela ayidli isikhathi kuphela, kepha futhi ikhawulelwe ngohlelo lokukhiqiza kanye nenombolo yezivivinyo. Inokusebenza okumpofu, imfucuza enkulu, nezindleko eziphakeme. Ngokuhlolwa kwe-retort ukuthola izakhiwo ezibonakalayo ezinjengezakhiwo ze-tensile, amandla we-peel, amandla okushisa ngaphambi nangemva kwesikhwama se-retort. Ukuhlolwa kokupheka ngokuvamile sebenzisa izinhlobo ezimbili zokuqukethwe kwangempela nezinto zokwenziwa okwenziwe. Ukuhlolwa kokupheka kusetshenziswa okuqukethwe kwangempela kungase kusondele ngangokunokwenzeka esimweni sangempela sokukhiqiza futhi kungavikela ngempumelelo ukufakwa okungafanele kusuka ekungeneni komugqa wokukhiqiza kuma-batch. Ngokupakisha amafektri ezibonakalayo, ama-simulants asetshenziselwa ukuvivinya ukumelana kwezinto zokupakisha ngesikhathi senqubo yokukhiqiza nangaphambi kokugcinwa. Ukuhlola ukusebenza kokupheka kuyasebenza futhi kuyasebenza. Umlobi wethula indlela yokuhlola ukusebenza kwezikhwama zokuvimbela izitolo ngokuzigcwalisa ngotshwala bokulingisa bokudla kusuka kubakhiqizi abahlukene abahlukene kanye nokwenza izivivinyo zokubila nokubilisa ngokulandelana. Inqubo yokuhlola imi kanjena:
1). Ukuhlola Ukuhlola
Amathuluzi: Imbiza yokupheka yokupheka yokuphekela emuva okuphephile futhi ehlakaniphile
Izinyathelo zokuhlola: Beka ngokucophelela i-4% acetic acid esikhwameni sokuphinda usebenzise izingxenye ezimbili kwezintathu zevolumu. Qikelela ukuthi ungangcolisi i-seal, ukuze ungaphazamisi ukushesha kokubekwa uphawu. Ngemuva kokugcwaliswa, bopha izikhwama zokupheka nge-HST-H3, bese ulungiselela amasampula ayi-12. Lapho ukubekwa uphawu, umoya osesikhwameni kufanele ukhathele ngangokunokwenzeka ukuvikela ukwanda komoya ngesikhathi sokupheka kusuka ekuthinteni imiphumela yokuhlolwa.
Beka isampula elivaliwe ebhodweni lokupheka ukuze uqale isivivinyo. Setha izinga lokushisa lokupheka liye ku-121 ° C, isikhathi sokupheka imizuzu engama-40, amasampula ayisithupha, bese ubilisa amasampula ayi-6. Ngesikhathi sokuhlolwa kokupheka, yinaka kakhulu izinguquko ekucindezelweni komoya kanye lokushisa ebhodweni lokupheka ukuze uqinisekise ukuthi izinga lokushisa nengcindezi kugcinwa ngaphakathi kwebanga elisethiwe.
Ngemuva kokuthi isivivinyo sesiphothuliwe, sipholile ekushiseni kwegumbi, sikukhiphe ukuthi ngabe kunezikhwama eziphukile, imibimbi, ukunxusa, njll ngemuva kokuhlolwa, akukho okubushelelezi ngemuva kokupheka futhi akukho kuncibilika. Ingaphezulu lesampula eli-3 # alibushelelezi ngemuva kokupheka, futhi imiphetho yalwa namazinga ahlukahlukene.
2). Ukuqhathaniswa Kwezakhiwo ZeTensile
Thatha izikhwama zokupakisha ngaphambi nangemva kokupheka, usike amasampula ama-5 anxande we-15mm × 150mm ku-transverse eqondiswa kanye ne-150mm esiqondisweni esingu-23 ± 27 ± 10 ± 10 ± 10 ± 10 ± 10% ± 10% RH. I-XLW (PC) Intelligent Tensile Tensile Tensile Machine ukuvivinya amandla okuphula umthetho kanye nokubumbana ngekhefu ngaphansi kwesimo se-200mm / min.
3). Ukuhlolwa kwe-peel
Ngokusho kwendlela ye-GB 8808-1988 "Indlela yokuhlola ye-Peel yezinto zokwakha zepulasitiki ezithambile", usike isampula ngobubanzi obungu-15 ± 0.1mm nobude obungu-150mm. Thatha amasampula ama-5 ngasinye eziqondisweni ezivundlile nezimi mpo. Pre-Peel the ungqimba we-composite eceleni kobude besampula, layisha emshinini wokuhlola we-xlw (PC), bese uvivinya i-peeling force ku-300mm / min.
4). Ukushisa Ukuvivinya Amandla Amandla
Ngokusho kwendlela yokuhlola ye-GB / T358-1998-1998-1998-1998. ifomula ye-dielectric ku-GB / T 10004-2008.
Beka kafushane
Ukudla okuhambisanayo okuvinjelwe kabusha kuya ngokuya kuthathwa ngabathengi ngenxa yokudla kwabo ekudleni nasekugcinweni. Ukuze ulondoloze ngempumelelo ikhwalithi yokuqukethwe futhi uvikele ukudla kusuka ekuwohlokeni, zonke izinyathelo zenqubo yokukhiqiza izikhwama eziphezulu ze-retort bag kumele ziqashelwe futhi zilawulwe ngokufanele.
1 Isibonelo, i-CPP ngokuvamile ikhethwe njengongqimba lokuvalwa kwangaphakathi kwezikhwama zokupheka ezingavimbela izinga lokushisa eliphakeme; Lapho izikhwama zokupakisha eziqukethe i-AL, zisetshenziselwa ukuphakamisa okuqukethwe i-acid kanye ne-alkaline, isendlalelo se-PA Composite kufanele sengezwe phakathi kwe-al ne-CPP ukukhulisa ukumelana ne-acid nase-alkali permeabilility; Isendlalelo ngasinye esiyinhlanganisela ukuncipha kokushisa kufanele kungaguquguquki noma okufanayo ukugwema ukwehla noma ukudicilela phansi kokupheka ngemuva kokupheka ngenxa yokufakelwa kwezinto ezimbi zokushisa.
2. Ukulawula kahle inqubo eyinhlanganisela. Izikhwama eziphakeme zokuvimbela izilinganiso zokulwa nokushintshana ngokuningi zisebenzisa indlela ehlanganisiwe. Enqubweni yokukhiqiza yefilimu ye-retort, kuyadingeka ukuthi ukhethe inqubo efanelekile nenhle yokunamathela, futhi ulawule izimo zelapha ukuze uqinisekise ukuthi i-ejenti eyinhloko yokunamathela kanye ne-ejenti yokwelapha isabela ngokugcwele.
I-3. Ukumelana okuphakathi okuphezulu kuyinqubo enzima kunazo zonke kwinqubo yokufaka izikhwama zokushintshana okushisa kakhulu. Ukuze unciphise ukwenzeka kwezinkinga zekhwalithi ye-batch, izikhwama zokushintshana okushisa kakhulu kumele zihlolwe kabusha zihlolwe futhi zihlolwe ngokusekelwe ezimeni zokukhiqiza zangempela ngaphambi kokusebenzisa nakwesikhathini. Bheka ukuthi ukubukeka kwephakheji ngemuva kokupheka okuyisicaba, okuhlanganisiwe, okufihliwe, okuwohlokayo, noma ngabe ukwehla kwezilinganiso zemvelo (izici ezithambile, amandla we-peel, amandla okushisa okushisa) kuhlangabezana nezidingo, njll.
Isikhathi Seposi: Jan-18-2024
