Izindaba

Wake wazibuza ukuthi ifilimu yepulasitiki, into ebalulekile esetshenziswa ekupakisheni nasezimbonini ezingenakubalwa, yenziwa kanjani? Iinqubo yokukhiqiza ifilimu yepulasitikiiwuhambo oluhehayo oluguqula izinto ezingavuthiwe ze-polymer zibe amafilimu ahlala isikhathi eside futhi aguquguqukayo esihlangana nawo nsuku zonke. Kusukela ezikhwameni zegrosa kuya ekusongelweni kwezimboni, ukuqonda le nqubo kunikeza ukukhanya kokuthi kungani amafilimu epulasitiki ebaluleke kangaka ekusetshenzisweni kwesimanjemanje.

Kulesi sihloko, sizohlola inqubo yokukhiqiza isinyathelo ngesinyathelo, izinto ezihlukahlukene ezihilelekile, kanye namasu okwenza amafilimu epulasitiki avumelane nezidingo ezahlukene. Lokhu kubukeka okunemininingwane kuzokunikeza ukuqonda kokuthi le nto ebonakala ilula idlala kanjani indima ebaluleke kangaka emhlabeni osizungezile.

Ukukhetha Izinto Ezifanele

Isisekelo senqubo yokukhiqiza ifilimu yepulasitiki silele ekukhetheni izinto zokusetshenziswa ezifanele. Amafilimu epulasitiki ngokuvamile enziwa ngama-polymers afana ne-polyethylene(PE), i-polypropylene(PP), i-polyvinyl chloride(PVC), kanye ne-polyethylene terephtha sekwephuzile(PET).I-polymer ngayinye inezici zayo ezihlukile, okuyenza ifanelekele ukusetshenziswa okuhlukile.

I-LDPE (I-Low-Density Polyethylene):Yaziwa ngokuguquguquka kwayo nokungafihli lutho, i-LDPE ivamise ukusetshenziswa ezikhwameni zepulasitiki kanye namafilimu ashwabanayo.

I-HDPE (High-Density Polyethylene) : Le nto iqinile futhi imelana kakhulu, ivame ukusetshenziselwa izikhwama zegrosa namalayini wezimboni.

I-PP (i-Polypropylene):Inikeza ukumelana nomswakama okuhle kakhulu nokucaca, okuyenza ilungele ukupakishwa kokudla.

Ukukhetha i-polymer efanele kuncike ezicini ezifunwayo zefilimu yokugcina, njengokuqina, ukuguquguquka, nokumelana nezinga lokushisa noma amakhemikhali.

I-Extrusion - Inhliziyo Yenqubo

Isinyathelo esilandelayo senqubo yokukhiqiza ifilimu yepulasitiki i-extrusion. Yilapho ama-pellets epulasitiki eluhlaza ancibilika khona futhi aguqulwa abe ishidi eliqhubekayo lefilimu. Kunezindlela ezimbili eziyinhloko ze-extrusion ezisetshenziswa ekwenzeni amafilimu epulasitiki:

I-Blown Film Extrusion

I-Blown film extrusion iyindlela esetshenziswa kakhulu, ikakhulukazi kumafilimu asetshenziswa emaphaketheni. Kule nqubo, i-polymer encibilikisiwe ikhishwa ngefa eliyindilinga, idale ithubhu lepulasitiki. Umoya ube usuvuthela eshubhuni, ulivuthele njengebhaluni. Njengoba ibhamuza likhula, lelula ipulasitiki ibe ifilimu elincanyana nelifanayo. Ifilimu ibe isipholiswa, isicaba, futhi igoqwe ukuze kuqhutshekwe nokucubungula.

I-Blown film extrusion yaziwa ngokukhiqiza amafilimu ahlala isikhathi eside anamandla aphezulu kanye nokuguquguquka, okuyenza ifaneleke emikhiqizweni efana nokugoqa kanye nezikhwama zepulasitiki.

I-Cast Film Extrusion

I-Cast film extrusion iyahluka endleleni eshaywayo ngokusebenzisa i-flat die. Ipulasitiki encibilikisiwe ikhishwa ngendlela yeshidi, epholiswa ngokushesha kuma-rollers abandayo. Amafilimu omlingisi ajwayele ukuba nokucaca okungcono nokulawula ukujiya okunembayo uma kuqhathaniswa namafilimu ashaywa umoya. Le ndlela ivame ukusetshenziselwa izinhlelo zokusebenza ezidinga amafilimu ekhwalithi ephezulu, njengokupakishwa kokudla noma imikhiqizo yezokwelapha.

Ukwelashwa Nokwenza Ngokwezifiso

Uma ifilimu isikhishiwe, ingase ithole ukwelashwa okwengeziwe ukuze ithuthukise ukusebenza kwayo nokusebenziseka kwayo. Lezi zindlela zokwelapha ziqinisekisa ukuthi ifilimu ihlangabezana nezidingo ezithile zemboni futhi ihlanganisa:

Ukwelashwa kweCorona:Ukwelashwa okungaphezulu okwandisa izici zokunamathela zefilimu, okuyivumela ukuthi yamukele kangcono oyinki bokuphrinta noma ama-coatings. Lokhu kubalulekile ekupakisheni amafilimu adinga ukumakwa noma ukulebula.

Ukwelashwa kwe-Anti-static:Kusetshenziswa kumafilimu ukunciphisa ugesi omile, okwenza kube lula ukuphatha nokuvikela uthuli noma imfucumfucu ukuthi ibambelele phezulu.

Ukuvikelwa kwe-UV:Kumafilimu achayeka ekukhanyeni kwelanga, ama-UV inhibitors angengezwa ukuvimbela ukuwohloka ekukhanyeni kwe-ultraviolet, okwandisa isikhathi sokuphila somkhiqizo.

Ezinye izithasiselo zingase zethulwe ngesikhathi senqubo yokukhipha ukuze kuthuthukiswe izici ezifana nokumelana nokushisa, amandla okudabula, noma izithiyo zomswakama.

Ukusika, ukugoqa, nokulawula ikhwalithi

Ngemuva kokwelashwa, ifilimu yepulasitiki isilungele ukunqunywa futhi igoqwe ngokuvumelana nobukhulu obufunayo nobukhulu. Lesi sinyathelo sibalulekile ekuqinisekiseni ukufana nokuhlangabezana nezidingo ezithile zamaklayenti. Ifilimu ivamise ukuboshelwa kumaroli amakhulu, okwenza kube lula ukuyithwala nokuyiphatha.

Ukulawulwa kwekhwalithi kuyisici esibalulekile senqubo yokukhiqiza amafilimu epulasitiki. Ukuhlolwa kuyenziwa ukuze kuqinisekiswe ukuthi ifilimu ihlangabezana nezindinganiso ezidingekayo zokuqina, amandla, ukuguquguquka, kanye nokubonisa ngale. Ukungapheleli okufana namaphinifa, izindawo ezibuthakathaka, noma ukujiya okungaguquki kungaholela ekuhlulekeni komkhiqizo, ngakho abakhiqizi batshala imali eningi ezinhlelweni ezinembile zokuqapha nokuhlola.

Izicelo kanye nokusetshenziswa kwemboni

Umkhiqizo wokugcina wenqubo yokukhiqiza amafilimu epulasitiki uthola indlela yawo ezisetshenziswa ezingenakubalwa kuzo zonke izimboni. Ezinye zezinto ezisetshenziswa kakhulu zihlanganisa:

Ukupakisha Ukudla:Ifilimu yepulasitiki inikeza isithiyo ngokumelene nomswakama, umoya-mpilo, nokungcola, okusiza ukugcina ubusha.

Amafilimu Ezokwelapha: Ekunakekelweni kwezempilo, amafilimu epulasitiki oyinyumba asetshenziswa ekufakweni kwemishini yezokwelapha namathuluzi okuhlinza.

Amafilimu Ezolimo: Asetshenziswa ezindlini zokugcina izithombo nasekuvikeleni izitshalo, lawa mafilimu asiza ukulawula indawo ezungezile ukuze kukhule kangcono izitshalo.

Ezilungiselelweni zezimboni, ifilimu yepulasitiki isetshenziselwa ukugoqa i-pallet, ukuvikelwa kwendawo, nanjengamalayini eziqukathi zamakhemikhali. Ukuvumelana nezimo nokuvumelana nezimo kwefilimu yepulasitiki kuyenza ibaluleke kakhulu kule mikhakha.

Isiphetho

Inqubo yokukhiqiza ifilimu yepulasitiki iyinqubo eyinkimbinkimbi futhi elawulwa kakhulu eguqula izinto zokusetshenziswa zibe umkhiqizo oguquguqukayo nobalulekile. Kusukela ekukhethweni kwezinto ezibonakalayo kuya ekukhishweni, ukwelashwa, nokulawulwa kwekhwalithi, isinyathelo ngasinye siqinisekisa ukuthi ifilimu yokugcina ihlangabezana nezidingo ezithile zezimboni ezihlukahlukene. Ukuqonda le nqubo akunikezeli nje ukuqonda ngokubaluleka kwefilimu yepulasitiki kodwa futhi kugqamisa ubuchwepheshe nokunemba okuhilelekile ekukhiqizeni kwayo.

Uma ubheke ukufunda okwengeziwe mayelana nenqubo yokukhiqiza amafilimu epulasitiki noma uhla lwayo olubanzi lwezinhlelo zokusebenza, hlala unolwazi mayelana nokuthrendayo kwemboni nentuthuko ngokuhlola imihlahlandlela yochwepheshe nezisetshenziswa. Lolu lwazi lungakunika amandla okwenza izinqumo ezinolwazi embonini yakho.