Njira Zogwiritsira Ntchito Mzere Wopangira Mapepala a Miyala

Mzere wa pepala la miyala ndi njira zopangira, kuphatikizapo mapepala opangidwa ndi zinthu zopangidwa ndi ukadaulo wake wopanga. Pepala la miyala limapangidwa ndi pepala loyambira ndi pepala lophimba, pepala lophimba limakutidwa ndi pepala loyambira. Pepala loyambira limapangidwa ndi zinthu zachilengedwe ndi zinthu zopanda chilengedwe. Gawo lachilengedwe ndi polylactic acid, ndipo gawo lolemera la gawo lachilengedwe ndi 15 mpaka 30. Zinthu zopanda chilengedwe zimaphatikizapo calcium carbonate ndi lithopone yopepuka, ndipo magawo olemera a zinthu zopanda chilengedwe ndi 70 mpaka 85. Njira yopangira ndi iyi: kuuma ndi kutentha ndikuchotsa madzi pang'ono a calcium carbonate ndi lithopone ndikusakaniza mofanana, kenako kusakaniza ndi zinthu zopanda chilengedwe ndikusakaniza mofanana, kenako kuchita kukanda mkati ndi kuyika mu zida zopangira granulation. Kalendala imatulutsidwa kuti ipeze pepala loyambira, lomwe kenako limakonzedwa ndi korona. Ikani zinthu zophimba pamwamba pa pepala loyambira. Ndi lotetezeka ku chilengedwe, losinthasintha, komanso losagwedezeka, ndiloyenera kugwiritsa ntchito inki wamba ndipo lingagwiritsidwe ntchito ngati pepala lachikhalidwe, chakudya ndi ukhondo, notebook ndi pepala la mabuku, pepala losindikizira, ndi zina zotero.

The Kupanga mapepala a miyala a PE Mzerewu uli ndi mapepala amwala osiyanasiyana komanso njira zowakonzera, zomwe zimaphatikizapo mapepala opangidwa ndi zinthu zopangidwa ndi ukadaulo wake wopanga. Mtundu wa pepala lamwala, lopangidwa ndi pepala loyambira ndi pepala lophimba, pepala lophimbalo limakutidwa ndi pepala loyambira. Gawo loyambira la pepala limapangidwa ndi zinthu zachilengedwe ndi zinthu zopanda chilengedwe. Gawo lachilengedwe ndi polypropylene, ndipo gawo lolemera la gawo lachilengedwe ndi 20 mpaka 30. Zigawo zopanda chilengedwe zimaphatikizapo calcium carbonate ndi lithopone yopepuka, ndipo zigawo zolemera za zigawo zopanda chilengedwe ndi 70 mpaka 80. Njira yokonzera ndi iyi: kuumitsa ndi kutentha ndikuchotsa madzi pang'ono calcium carbonate ndi lithopone ndikuzisakaniza mofanana, kenako kusakaniza ndi zigawo zopanda zachilengedwe ndikuzisakaniza mofanana, kenako kuchita kukanda ndi kuyika granulation mkati mwa zida zoyika granulation. Kalendala imatulutsidwa kuti ipeze gawo loyambira la pepala, lomwe kenako limakonzedwa korona. Ikani zinthu zophimba pamwamba pa gawo loyambira la pepala. Chifukwa ndi lotetezeka ku chilengedwe, losinthasintha, komanso losagonja ndi kung'ambika, ndi loyenera ma inki wamba ndipo lingagwiritsidwe ntchito ngati pepala lachikhalidwe, chakudya ndi ukhondo, notebook ndi pepala la mabuku, pepala losindikizira, ndi zina zotero.

Pepala la miyala la PE ndi mtundu watsopano wa zinthu zosawononga chilengedwe zomwe zili ndi ubwino ndi ntchito zosiyanasiyana.

‌Imapangidwa makamaka ndi ufa wa limestone ndi polyethylene (‌PE)‌ kudzera m'njira zapadera. Ndi yosalowa madzi, yosalowa mafuta, yosalowa chinyezi, komanso yosazizira. Imagwiranso ntchito yolimba, yosapindika, komanso yosasweka mosavuta. ‌Yoyenera njira zosiyanasiyana zosindikizira, ‌makamaka yoyenera matumba a mapepala, ‌matumba a m'manja, ndi zina zotero.‌Njira yopangira zinthuzi siigwiritsa ntchito madzi, ‌siigwiritsa ntchito mafuta kapena mitengo, ‌siifuna migodi yayikulu, ‌siitulutsa zinyalala zilizonse, ‌malo opangira ndi oyera komanso opanda phokoso, ‌mtengo wake ndi wotsika, ‌ndi mtundu wa zinthu pakati pa mapepala ndi zinthu zatsopano zapulasitiki.

Mapepala a miyala a PE samangosintha mapepala ena achikhalidwe ndi mapepala aukadaulo, komanso amalowa m'malo mwa mapepala ambiri apulasitiki achikhalidwe, ndipo ali ndi chidziwitso champhamvu pazachilengedwe. Sichifuna kutsukidwa ndi madzi konse panthawi yopanga, ndipo sichifuna asidi wamphamvu, alkali wamphamvu ndi bleach, chifukwa chake palibe vuto la kutuluka kwa madzi otayira, ndipo sichidetsa madzi monga mitsinje ndi nyanja. Ndipo chimagwiritsa ntchito mphamvu zochepa kuposa kupanga mapepala achikhalidwe amatabwa, zomwe zimathandiza kukonza mavuto monga kutentha kwa dziko komwe kumachitika chifukwa cha carbon dioxide (CO2).

Mwachidule, pepala la miyala la ‌PE si chinthu chatsopano choteteza chilengedwe, komanso lili ndi zabwino zambiri monga mtengo wotsika, kubwezeretsanso zinthu komanso kuwonongeka, ndipo likuyembekezeka kukhala chinthu choteteza chilengedwe chomwe chimagwiritsidwa ntchito kwambiri mtsogolo.