Ukuba ufuna ukugcina imveliso yakho ikhuselekile kwaye ikhuselekile ukuba ithengiswe, usenokuba sele uyibonile ifilimu ecuthayo inokukunceda wenze oko.Kukho iintlobo ezininzi zeefilim ezicuthekayo kwimarike namhlanje ngoko ke kubalulekile ukufumana uhlobo olululo.Ayizukuphela nje ukukhetha uhlobo olululo lwefilimu eshwabeneyo inceda ukukhusela imveliso yakho eshelufini, kodwa iyakwandisa amava okuthenga kubathengi okanye abathengi bakho.
Kwiindidi ezininzi zefilimu eyanciphayo, iintlobo ezintathu eziphambili zefilimu kwimarike oya kufuna ukuyiphonononga yiPVC, iPolyolefin, kunye nePolyethylene.Ezi filim zicuthekayo nganye ineempawu eziwela kwizicelo ezahlukeneyo, kodwa iimpawu ezithile zezi bhanyabhanya zinokuzenza zifanelekele ngakumbi ukusetyenziswa kwakho.
Nanga amanye amandla kunye nobuthathaka bohlobo ngalunye lwefilimu ecuthekayo ukukunceda ukhethe ukuba yeyiphi enokuba yeyona ilungileyo kwisicelo sakho.
● I-PVC (ekwabizwa ngokuba yiPolyvinyl Chloride)
Amandla
Le filimu ibhityile, ithambile, kwaye ilula, ifikeleleka ngakumbi kuneefilim ezininzi ezicuthekayo.Iyancipha kuphela kwicala elinye kwaye ixhathisa kakhulu ukukrazula okanye ukugqobhoza.I-PVC inomboniso ocacileyo, ocwebezelayo, oyenza ibonakale inomtsalane emehlweni.
Ubuthathaka
I-PVC iyathamba kwaye imibimbi ukuba iqondo lobushushu liphezulu kakhulu, kwaye liba lukhuni kwaye libe brittle ukuba liyaphola.Ngenxa yokuba ifilimu ine-chloride kuyo, i-FDA ivume kuphela ifilimu ye-PVC ukuba isetyenziswe kunye neemveliso ezingenakudliwa.Oku kukwabangela ukuba ikhuphe imisi eyityhefu ngexesha lokufudumeza kunye nokutywinwa, nto leyo eyenza kube yimfuneko ukuba isetyenziswe kwiindawo ezinomoya kakhulu.Le filimu ke ngoko inemigangatho engqongqo yokulahla.I-PVC ayifanelekanga ngokubanzi ukudibanisa iimveliso ezininzi.
● Polyolefin
Amandla
Olu hlobo lwefilimu eshwabeneyo luvunyiwe yi-FDA kunxibelelwano lokutya kuba ingenayo ikloridi kuyo, kwaye ivelisa ivumba elincinci kakhulu ngexesha lokufudumeza kunye nokutywinwa.Ifaneleka ngcono kwiipakethe ezimile ngendlela engaqhelekanga njengoko icutheka ngakumbi.Ifilim inomphezulu omhle, omenyezelayo kwaye icace kakhulu.Ngokungafaniyo ne-PVC, inokumelana noluhlu olubanzi lokuguquguquka kobushushu xa igcinwe, igcina uluhlu.Ukuba ufuna ukuhlanganisa izinto ezininzi, ipololefin lukhetho olukhulu.Ngokungafaniyo ne-PE, ayikwazi ukusonga iipakethe ezininzi zezinto ezinzima.I-Cross-linked polyolefin nayo iyafumaneka eyandisa amandla ayo ngaphandle kokuncama ingcaciso.I-Polyolefin ikwayi-100% enokuphinda isetyenziswe, iyenza ibe lukhetho "oluhlaza".
Ubuthathaka
I-Polyolefin ibiza kakhulu kunefilimu ye-PVC, kwaye inokufuna ukugqobhoza kwezinye iinkqubo ukuphepha iipokotho zomoya okanye umphezulu onamaqhuma.
● Polyethylene
Olunye ulwazi olongezelelweyo: Ifilimu ye-polyethylene ingasetyenziselwa ifilimu yokunciphisa okanye ifilimu yokwelula, kuxhomekeke kwifom.Kuya kufuneka wazi ukuba loluphi uhlobo olufunayo kwimveliso yakho.
Abavelisi benza i-polyethylene xa bongeza i-ethylene kwi-polyolefin ngexesha lenkqubo ye-polymerization.Kukho iintlobo ezintathu ezahlukeneyo zePolyethylene: i-LDPE okanye i-Polyethylene yoxinaniso oluphantsi, i-LLDPE okanye i-Linear-Low-density Polyethylene, kunye ne-HDPE okanye i-Polyethylene yoxinaniso oluphezulu.Nganye ineendlela ezahlukeneyo zokusebenza, kodwa ngokwesiqhelo, ifom ye-LDPE isetyenziselwa ukupakisha ifilimu ecuthekileyo.
Amandla
Inzuzo yokugubungela iipakethi ezininzi zezinto ezinzima-umzekelo, inani elikhulu leziselo okanye iibhotile zamanzi.Yomelele kakhulu kwaye iyakwazi ukolula ngaphezu kwezinye iifilimu.Njenge polyolefin, ipolyethylene yi-FDA evunyiweyo kuqhagamshelwano lokutya.Ngelixa iifilimu ze-PVC kunye ne-polyolefin zilinganiselwe kubukhulu, ngokuqhelekileyo ukuya kuthi ga kwi-0.03mm, i-polyethylene inokunyuswa ukuya kwi-0.8mm, iyenze ilungele ukusonga izithuthi ezifana nezikhitshane zokugcinwa.Usetyenziso olususela kwisambuku okanye ekutyeni okukhenkcezisiweyo ukuya kwiingxowa zenkunkuma kunye ne-palletizing njengokusonga.
Ubuthathaka
I-Polyethylene inereyithi yokucutheka malunga ne-20% -80% kwaye ayicacanga njengezinye iifilimu.I-Polyethylene iyacutheka xa ipholisa emva kokuba ifudunyeziwe, nto leyo eyenza kube yimfuneko ukuba kubekho indawo eyongezelelweyo yokupholisa ekupheleni kwetonela yakho yokushwabana.
Ixesha lokuposa: Jul-13-2022