Yintoni iiFilimu zePP?

IIPROPATI

I-Polypropylene okanye i-PP yi-thermoplastic ebiza kancinci ecacileyo kakhulu, i-gloss ephezulu kunye namandla amahle okutsalwa. Inendawo yokunyibilika ephezulu kune-PE, nto leyo eyenza ukuba ifaneleke kwizicelo ezifuna ukucoca iintsholongwane kubushushu obuphezulu. Ikwanayo ne-haze encinci kunye ne-gloss ephezulu. Ngokubanzi, iipropati zokuvala ubushushu ze-PP azilunganga njengeze-LDPE. I-LDPE ikwanayo namandla okukrazula angcono kunye nokumelana nefuthe lobushushu obuphantsi.

I-PP inokwenziwa ngesinyithi nto leyo ephumela ekuphuculweni kweempawu zokuthintela igesi ukuze kusetyenziswe izinto ezifuna umgudu apho ubomi beshelufu yemveliso bubalulekile.Iifilimu zePPzilungele uluhlu olubanzi lwezicelo zoshishino, abathengi, kunye neemoto.

I-PP ingasetyenziswa kwakhona ngokupheleleyo kwaye inokuphinda isetyenziswe ngokulula ibe ziimveliso ezininzi kwiintlobo ngeentlobo zezicelo. Nangona kunjalo, ngokungafaniyo nephepha nezinye iimveliso ze-cellulose, i-PP ayiboli. Kwelinye icala, inkunkuma ye-PP ayivelisi iimveliso ezinobungozi okanye eziyingozi.

Iintlobo ezimbini ezibalulekileyo yi-cast unoriented polypropylene (CPP) kunye ne-biaxially oriented polypropylene (BOPP). Zombini ezi ntlobo zine-gloss ephezulu, i-optics egqwesileyo, ukusebenza okuhle okanye okugqwesileyo kokuvala ubushushu, ukumelana nobushushu okungcono kune-PE, kunye neempawu ezilungileyo zokuthintela ukufuma.

Iifilimu zePolypropylene eziQokelelweyo (CPP)

I-Polypropylene (CPP) efakwe kwi-Cast unoriented idla ngokufumana izicelo ezimbalwa kune-polypropylene esekwe kwi-biaxially (BOPP). Nangona kunjalo, i-CPP ibisoloko ifumana indawo njengokhetho oluhle kakhulu kwiiphakheji ezininzi zemveli eziguquguqukayo kunye nezicelo ezingapakishwanga. Iimpawu zefilimu zinokwenziwa ngokwezifiso ukuhlangabezana neemfuno ezithile zokupakisha, ukusebenza, kunye nokucubungula. Ngokubanzi, i-CPP inokumelana okuphezulu kokukrazula kunye nefuthe, ukusebenza ngcono kobushushu obubandayo kunye neempawu zokuvala ubushushu kune-BOPP.

Iifilimu zePolypropylene ezijolise kwiBiaxial (BOPP)

I-polypropylene ejonge i-Biaxial okanye i-BOPP1 yeyona filimu ibalulekileyo ye-polypropylene. Yeyona ndlela ilungileyo yokutshintsha indawo ye-cellophane, iphepha elifakwe i-wax, kunye ne-aluminium foil. Ukujongwa kwayo kwandisa amandla okutsalwa kunye nokuqina, kunciphisa ukunwebeka (kunzima ukunwebeka), kwaye kuphucula iimpawu zokukhanya, kwaye kuphucula kancinci iimpawu zomqobo womphunga. Ngokubanzi, i-BOPP inamandla aphezulu okutsalwa, i-modulus ephezulu (ukuqina), ukunwebeka okuphantsi, umqobo wegesi ongcono, kunye nomnkungu ophantsi kune-CPP.

IZICELO

Ifilimu ye-PP isetyenziselwa ukupakisha okuninzi okuqhelekileyo okufana necuba, iilekese, ukutya okulula kunye ne-food wraps. Ingasetyenziselwa ne-shrink wrap, i-tape liners, ii-diapers kunye ne-sterile wrap esetyenziswa kwizicelo zonyango. Ngenxa yokuba i-PP ineempawu zokuthintela igesi eziqhelekileyo, ihlala igqunywa ngezinye iipolymers ezifana ne-PVDC okanye i-acrylic eziphucula kakhulu iimpawu zayo zokuthintela igesi.

Ngenxa yevumba eliphantsi, ukumelana neekhemikhali eziphezulu kunye nokungangeni kakuhle, uninzi lwee-PP grades zifanelekile ukufakelwa kwiipakethe phantsi kwemigaqo ye-FDA.