Filimu yakudyandi mtundu wazinthu zopangira pulasitiki, zomwe nthawi zambiri zimapangidwa ndi polymerization reaction ndi ethylene ngati masterbatch.
Akhoza kugawidwa m'magulu atatu
Yoyamba ndi PE , Imagwiritsidwa ntchito makamaka pakuyika chakudya.Kanemayu amagwiritsidwa ntchito pazipatso ndi ndiwo zamasamba zomwe timagula nthawi zambiri, kuphatikiza zomwe zatha kugulidwa m'sitolo.
Yachiwiri ndi PVC.Izi zitha kugwiritsidwanso ntchito pakuyika chakudya, koma zimakhudza kwambiri chitetezo chathupi la munthu;
Chachitatu ndi PVDC , yomwe imagwiritsidwa ntchito makamaka pakuyika zakudya zophika, nyama ndi zinthu zina.
Tambasula filimuamapangidwa pogwiritsa ntchito utomoni wa polyethylene LLDPE wochokera kunja ndi zina zapadera za tackifier.
1. Ntchito zosiyanasiyana
Filimu Yodyera: Zogwiritsa ntchito zosiyanasiyana, kuphatikiza kunyamula zakudya, zipatso, masamba, nyama, ndi kuyika zinthu.
Filimu Yotambasula: kuyika, komanso kuyika zoteteza katundu pamayendedwe, makamaka kuteteza zinthu kuti zisabalalike kapena kukandidwa.
2. Mafotokozedwe osiyanasiyana
Kuchuluka kwa filimu yotambasula ndi yochuluka kuposa filimu yodyera, ndipo kukula kwake ndi kwakukulu kuposa filimu yodyera.
Kukulunga kwa pulasitiki m'nyumba nthawi zambiri kumakhala 30cm m'lifupi ndi 10um mu makulidwe;filimu yotambasula ya mafakitale nthawi zambiri imakhala 50cm m'lifupi ndi 20um mu makulidwe.
3. Kusiyana kotambasula kosiyana
Filimu yotambasula ndiyotambasula kwambiri kuposa filimu yophatikizira.Filimu yotambasula imawomberedwa mwachindunji kuchokera ku LDPE kudzera pamakina omangira, ndipo chiwongolero chake chimatha kufika 300% -500%.Panthawi imodzimodziyo, filimu yotsatirira imamatira ku nkhaniyo, pamene filimu yotambasula imadzipangira yokha, yomwe imagwirizana ndi kuchuluka kwa polyisobutylene yomwe imagwiritsidwa ntchito.
LGLPAK imayang'ana pa kafukufuku ndi chitukuko ndi kupanga zinthu zapulasitiki, kupatsa makasitomala zinthu zokhutiritsa ndi zomwe timatsata.
Nthawi yotumiza: Nov-06-2020