Ruzivo rweChigadzirwa Chekutanga chePurasitiki

Mumakore achangopfuura, minda yekushandiswa kwe chubhu yepurasitiki yekushongedzakurongedza kwawedzera zvishoma nezvishoma. Zvigadzirwa zvemaindasitiri zvasarudza kurongedza chubhu yekusvina, zvakaita semafuta ekuzora, guruu regirazi, uye musanganiswa we caulking; zvigadzirwa zvekudya zvasarudzwa kurongedza chubhu yekusvina, zvakaita semustard ne chili sauce; uye mafuta emishonga akasarudza machubhu. kurongedza chubhu yekusvinairi kuramba ichivandudzwa. Zvigadzirwa zvakawanda munzvimbo dzakasiyana-siyana zviri kushandisa "machubhu" ekurongedza. Mu chubhu yepurasitiki yekushongedzaMaindasitiri, machubhu anodiwa nekuti ari nyore kudzvanya nekushandisa, huremu hwawo hushoma uye hunogona kutakurwa, magadzirirwo aanogona kugadziriswa, uye kudhinda kwaanogona kugadziriswa. Anoshandiswa zvakanyanya mukupakata zvizoro, zvigadzirwa zvezuva nezuva, uye zvigadzirwa zvekuchengetedza bvudzi.

Aruminiyamu-purasitiki yakasanganiswa chubhu yepurasitiki yekushongedzas magaba ekurongedza akagadzirwa nefoil yealuminium nepurasitiki kuburikidza ne co-extrusion nedzimwe nzira dzekugadzira mapepa, ayo anozogadziriswa kuita machubhu nemichina yakagadzirwa nehunyanzvi hwekugadzira machubhu. Maumbirwo awo akajairika iPE/PE+EAA/AL/PE+EAA/PE. Aluminum-plastic composite chubhu yepurasitiki yekushongedzaZvishandiso izvi zvinonyanya kushandiswa pakurongedza zvizoro zvine zvinodiwa zvakanyanya pahutsanana uye hunhu hwezvidziviriro. Chidziviriro ichi chinowanzova aluminium foil, uye hunhu hwayo hwezvidziviriro zvinoenderana nehurefu hwepinhole yealuminium foil. Nekuvandudzwa kuri kuramba kuchiitwa tekinoroji, ukobvu hwealuminium foil barrier layer mumachubhu ealuminium-plastic composite hwakaderedzwa kubva pa40μm yechinyakare kusvika pa12μm kana kunyange 9μm, zvichichengetedza zvakanyanya zviwanikwa.

Machubhu epurasitiki ePE ekushongedzazvinogadzirwa nekubatanidza mashandiro akasiyana uye kugadzira zvinhu zvitsva pamwe chete muchikamu chimwe chete. chubhu yepurasitiki yekushongedzaMachubhu akakamurwa kuita machubhu akaburitswa nechikamu chimwe chete uye machubhu akaburitswa nechikamu chimwe chete. Chekutanga chinoshandiswa zvakanyanya pakurongedza zvizoro zvinodyiwa nekukurumidza zvine zvinodiwa zvakanyanya asi zvinodiwa zvishoma zvekushanda (senge kirimu yemaoko, nezvimwewo), nepo chekupedzisira chinoshandiswa zvakanyanya pakurongedza zvizoro zvepamusoro.

Musanganiswa wepurasitiki yese chubhu yepurasitiki yekushongedzaMachubhu anogadzirwa nekubatanidza mashandiro akasiyana uye kugadzira zvinhu zvitsva pamwe chete muchikamu chimwe chete. Machubhu epurasitiki anopatsanurwa kuita machubhu anopatsanurwa ane layer imwe chete uye machubhu anopatsanurwa ane layer yakawanda. Ekutanga anonyanya kushandiswa kurongedza zvizoro zvinodyiwa nekukurumidza zvine zvinodiwa zvakanyanya asi zvinodiwa zvishoma zvekushanda (senge kirimu yemaoko, nezvimwewo), nepo ekupedzisira achinyanya kushandiswa kurongedza zvizoro zvepamusoro.

Machubhu ari kurongedza chubhu yekusvinaMatangi akagadzirwa nezvinhu zvakaita sepurasitiki yePE, foil yealuminium, uye firimu repurasitiki kuburikidza ne co-extrusion nedzimwe nzira dzekugadzira mapepa, ayo anozogadziriswa kuita machubhu nemichina yakagadzirwa nehunyanzvi yekugadzira machubhu. Machubhu ane zvakanakira zvehuremu hushoma, kutakurwa, kugara kwenguva refu, kudzokororwa, kusvinwa nyore, uye kugadziriswa zvakanaka uye kuchinjika kwekudhinda, zvichiita kuti ave akakurumbira pakati pevagadziri vazhinji vezvizoro.