Filimu yotambasula ndi filimu ya pulasitiki yomwe imagwiritsidwa ntchito kwambiri pakuyika zinthu, kupanga mafakitale ndi chitetezo cha ogula. Kusankhidwa kwa zinthu kumakhudza mwachindunji ntchito, mtengo ndi chilengedwe cha mankhwala. Kumvetsetsa zida zazikulu ndi mawonekedwe a filimu yotambasula zidzathandiza ogula ndi ogwiritsa ntchito mapeto kupanga zosankha zoyenera malinga ndi zosowa zenizeni.
Polyethylene (PE) - maziko a filimu yotambasula
Polyethylene (PE mwachidule) ndiye filimu yotambasula kwambiri pamsika. Ikhoza kugawidwa mu low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE) ndi high-density polyethylene (HDPE) molingana ndi makulidwe osiyanasiyana. Pakati pawo, LLDPE yakhala chisankho chodziwika bwino cha filimu yotambasula chifukwa champhamvu yake yolimba, kukana nkhonya komanso kusinthasintha.
Kanema wotambasula wa LDPE ali ndi zowonekera bwino, koma zofooka zolimba, ndipo zimagwiritsidwa ntchito kwambiri pakuyika zinthu zopepuka. Kanema wotambasula wa LLDPE amagwiritsidwa ntchito kwambiri pazinthu zolemetsa, zonyamula pallet ndi magawo ena chifukwa champhamvu zake zolimba komanso kulimba mtima. Ngakhale filimu yotambasula ya HDPE ili ndi mphamvu zapamwamba, imakhala yosasinthasintha bwino ndipo nthawi zambiri imagwiritsidwa ntchito popanga zochitika zokhala ndi zosowa zapadera.
Polypropylene (PP) - Mphamvu Yapamwamba ndi Kusankha Kukana Kutentha
Filimu yotambasula ya polypropylene (PP) imakhala ndi zabwino m'malo ena chifukwa cha mphamvu zake zolimba komanso kukana kutentha. Filimu yotambasula ya PP ndi yolimba kuposa filimu yotambasula ya PE ndipo ndiyoyenera kuyika malo omwe amafunikira kupirira kutentha kwakukulu kapena kupsinjika kwa makina, monga mankhwala, zipangizo zomangira, ndi zina zotero.
Zowonongeka - kusankha kwatsopano pansi pa mchitidwe woteteza chilengedwe
Ndi kuwonjezeka kwa chidziwitso cha chilengedwe, filimu yowonongeka yowonongeka pang'onopang'ono yakhala mutu wovuta kwambiri pamakampani. Zinthu zamtunduwu nthawi zambiri zimapangidwa ndi -zopangidwa ndi mapulasitiki opangidwa ndi bio (monga PLA, PHA) kapena PE/PP zokhala ndi zowonjezera zowononga, zomwe zimatha kuwola mwachangu m'chilengedwe ndikuchepetsa kuipitsidwa ndi pulasitiki. Ngakhale mtengo wamakanema owonongeka ndiokwera kwambiri pakadali pano, ndikupita patsogolo kwaukadaulo komanso kukwezedwa kwa mfundo, msika wake ukuyembekezeka kukula pang'onopang'ono.
Chidule
Kusankhidwa kwazinthu zamakanema otambasulira kumafunika kuganizira mozama zosowa zama phukusi, mtengo wake komanso zinthu zachilengedwe. Zinthu za PE zikadali zomwe zikugulitsidwa pamsika chifukwa chakuchita bwino kwambiri, pomwe PP ndi zida zowonongeka zimapereka mwayi wochulukirapo pazochitika zinazake. M'tsogolomu, ndi kupita patsogolo kwa sayansi ya zipangizo, zipangizo za mafilimu otambasula zidzakhala zosiyana kwambiri kuti zikwaniritse zosowa zamafakitale osiyanasiyana.