I-LDPE, okanye i-low-density polyethylene, yiplastiki eyaziwayo esetyenziswa kwiimveliso ezahlukeneyo, kuquka ukupakishwa.I-LDPE yaziwa ngokuba bhetyebhetye, amandla, kunye nokucaca kwayo, iyenza ibe lolona khetho lubalaseleyo kwizicelo ezininzi ezahlukeneyo.Enye yeendlela eziqhelekileyo ze-LDPE yifilimu ye-LDPE yokunciphisa ukushisa, esetyenziswa kakhulu kwishishini lokupakisha.Ukuba unomdla wokufunda ngakumbi malunga nendlela eyenziwa ngayo i-LDPE kunye nendima yabavelisi befilimu be-LDPE kule nkqubo, qhubeka ufunda.
Inkqubo yokuvelisa i-LDPE iqala ngokutsalwa kwe-ethylene (igesi ye-hydrocarbon) kwigesi yendalo okanye i-naphtha.Emva kokuba i-ethylene ifunyenwe, ingena kwinkqubo ebizwa ngokuba yi-polymerization, ebandakanya ukudibanisa iimolekyuli ezininzi ze-ethylene kunye ukwenza amatyathanga amade e-LDPE.Inkqubo ye-polymerization inokuqhutywa ngeendlela ezahlukeneyo, kubandakanywa i-polymerization ephezulu yoxinzelelo okanye i-polymerization yamahhala, esetyenziswa ngokuqhelekileyo ukuvelisa i-LDPE.
Emva kwenkqubo ye-polymerization, i-LDPE iyanyibilika kwaye yenziwe ibe yimo efunekayo, njengefilimu, ngenkqubo ebizwa ngokuba yi-extrusion.Ifilimu yokunciphisa ubushushu be-LDPE, ngokukodwa, iveliswa kusetyenziswa uhlobo olukhethekileyo lwe-extrusion ebizwa ngokuba yi-blow film extrusion.Kule nkqubo, i-LDPE iyancibilika kwaye inyanzeliswe ngokufa kwesetyhula, eyenza ityhubhu yeplastiki etyhidiweyo.Ityhubhu ke ivuthelwe, okanye "ivuthelwe," ngomoya wokunweba kwaye uyilolonge ibe bubunzima obufunwayo kunye nobubanzi.Ifilimu iye ipholiswe kwaye ifakwe kwimiqulu emikhulu ukuze iqhutywe kwaye isasazwe.
Nje ukuba ifilimu ye-LDPE ivelisiwe, ithengiselwa abavelisi befilimu be-LDPE, abanokuthi baqhubekisele phambili imathiriyeli kwaye bayiguqulele kwiintlobo ezahlukeneyo zeemveliso zokupakisha, kubandakanya ifilimu eshwabeneyo yobushushu.Abavelisi befilimu be-LDPEidlala indima ebalulekileyo kwinkqubo yokuvelisa ngokubonelela ngeenkonzo ezongeziweyo zexabiso, ezifana nokuprinta, i-laminating, kunye nokuguqula ifilimu ye-LDPE kwiimveliso ezigqityiweyo ezihlangabezana neemfuno ezithile zabathengi babo.
Ukongeza kwimveliso kunye nokulungiswa kwefilimu ye-LDPE,Abavelisi befilimu be-LDPEbanoxanduva lokuqinisekisa umgangatho kunye nokuhambelana kwezinto.Oku kubandakanya ukuqhutywa kovavanyo olucokisekileyo kunye nemilinganiselo yokulawula umgangatho ukuqinisekisa ukuba ifilimu ye-LDPE ihlangabezana neenkcukacha eziyimfuneko kunye nemigangatho yokusetyenziswa ekujoliswe kuyo.Abavelisi beefilimu ze-LDPE banokusebenzisana ngokusondeleyo nabathengi babo ukubonelela ngobuchule bobugcisa nenkxaso, bebanceda ukuba bakhethe uhlobo olululo lwefilimu ye-LDPE kwiimfuno zabo zokupakisha.
Ukuqukumbela, i-LDPE yinto eguquguqukayo kwaye isetyenziswa ngokubanzi imathiriyeli yeplastiki eyenziwe ngenkqubo yepolymerization kunye ne-extrusion.Abavelisi beefilimu ze-LDPE badlala indima ebalulekileyo ekuveliseni nasekuqhubeni ifilimu ye-LDPE, kubandakanywa ukwenziwa kwefilimuIfilimu yokunciphisa ubushushu be-LDPE.Ngokubonelela ngeenkonzo ezongeziweyo zexabiso kunye nokuqinisekisa umgangatho wezinto eziphathekayo, abavelisi befilimu ye-LDPE banegalelo kwimveliso esebenzayo kunye nomgangatho ophezulu weemveliso zokupakisha ze-LDPE.Ukuba ufuna ifilimu ye-LDPE kwiimfuno zakho zokupakisha, qiniseka ukuba usebenzisana nomenzi wefilimu ohloniphekileyo we-LDPE onokuhlangabezana neemfuno zakho ezithile.
Ixesha lokuposa: Feb-27-2024