Kapangidwe ndi Ntchito za EVOH Multilayer Co Extruded Film

Zomangamanga zamafilimu a multilayer co-extrudedAkhoza kugawidwa m'magulu awiri, omwe ndi symmetric structure (A/B/A) ndi asymmetric structure (A/B/C).Pakalipano, mafilimu otchinga ku China amapangidwa makamaka ndi zigawo 5, zigawo 7, zigawo 8 ndi zigawo 9.The symmetrical structural wosanjikiza wamultilayer co-extrusion chotchingadiaphragm imapangidwa ndi mitundu itatu ya zigawo zogwirira ntchito, zomwe ndi zosanjikiza zotchinga, zosanjikiza zomatira ndi gawo lothandizira.

Chotchinga chotchinga: chotchinga chotchinga chimakhala ndi ntchito za kukana kwa okosijeni, kukana chinyezi komanso kupewa kutayikira kwamafuta.Kupyolera mu kulamulira kwa zipangizo zosanjikiza zotchinga ndi makulidwe, mawonekedwe otchinga azinthu zamakanema amatha kusinthidwa kuti akwaniritse zosowa zosiyanasiyana zamapaketi (zotchinga zomwe zimagwiritsidwa ntchito pamsika zimaphatikizapo PA, EVOH, PVDC, ndi zina zambiri.

Zosanjikiza zothandizira: nthawi zambiri, zida zofananira zimakhala ndi zigawo ziwiri zothandizira.Chipinda chamkati chimagwiritsidwa ntchito posindikiza kutentha, chomwe chimakhala chosindikizira cha kutentha, pamene chisindikizo chakunja chimagwiritsidwa ntchito mwachindunji ngati chigawo chakunja kapena chosindikizira cha filimu yopangira.Wosanjikiza wothandizira azikhala ndi mphamvu zamakina abwino, ntchito yosindikiza kutentha, kukana kwa nthunzi yamadzi, kuwonekera komanso kusindikiza.Zomwe zimagwiritsidwa ntchito pagululi ndi LDPE kapena LDPE/LLDPE zosakaniza.

Kumangirira wosanjikiza: udindo wa cholumikizira wosanjikiza ndi kumangiriza chotchinga wosanjikiza ndi wothandizira wosanjikiza kuonetsetsa peeling mphamvu pakati pa zigawo.Kusankhidwa kwa zinthu zosanjikiza zomangira ndi makulidwe nthawi zambiri kumadalira zida za gawo lothandizira ndi chotchinga chotchinga ndi mphamvu yolumikizira yofunikira kuti mudziwe zomatira zomwe zimagwiritsidwa ntchito polumikizira.

Pa nthawi yomweyo, makulidwe a wosanjikiza aliyense akhoza kusinthidwa kudzera extrusion ndondomeko.Mwa kusintha makulidwe a chotchinga chosanjikiza ndi kuchuluka kwa zinthu zopangira, filimuyo yokhala ndi zotchinga zosiyanasiyana imatha kupangidwa mosavuta.Zida zosanjikiza zotsekera kutentha zimathanso kusinthidwa ndikusinthidwa kuti zikwaniritse zosowa zamapaketi osiyanasiyana.Ma multilayer ndi multifunctional co-extrusion composite ndiye njira yayikulu yopangira zida zamakanema mtsogolo.

Pofuna kukulitsa moyo wa alumali wazinthu zamakono komanso zopangira mankhwala, zida zambiri zoyikapo zimagwiritsa ntchito mafilimu ophatikizika a multilayer co-extruded.Pogwiritsira ntchito, amasonyeza bwino kwambiri makhalidwe abwino a chitsimikiziro cha khalidwe, kusungirako kuzizira, kutetezedwa kwa kukoma, kusungirako nthawi yayitali, kukana kwa asidi ndi alkali, kukana chinyezi ndi kuzizira, kukana kutentha, kutentha kochepa ndi kusungirako kuzizira, ndi mphamvu zambiri.