Chikwama chamkati cha thumba m'bokosi chimakhala ndi thumba la mafuta lotsekedwa ndi cholumikizira chodzaza chomwe chili pa thumba la mafuta, ndi chipangizo cholumikizira chomwe chili pa cholumikizira chodzaza; thumba la mafuta limaphatikizapo thumba lakunja ndi thumba lamkati, thumba lamkati limapangidwa ndi zinthu za PE, ndipo thumba lakunja limapangidwa ndi nayiloni ndi PE. Chikwama chamkati cha chitsanzo chothandizira chimapangidwa ndi zigawo ziwiri: thumba lamkati ndi thumba lakunja, zomwe zimapangitsa kuti thumba lamkati likhale losinthasintha komanso lolimba, kapangidwe kake ndi kosavuta komanso koyenera.
Mtundu wina wa thumba lamkati nthawi zambiri ndi thumba losawoneka bwino losasinthika, lomwe limapangidwa ndi zigawo ziwiri za zinthu zosaphatikizika mbali imodzi. Gawo lakunja ndi filimu yosakanikirana, ndipo gawo lamkati ndi gawo limodzi la PE. Zinthu zophatikizika za gawo lakunja nthawi zambiri zimakhala PET/AL/PE, NY/EVOH/PE, PET/VMPET/PE, ndi zina zotero.
Kusankha kapangidwe kapadera aka kumachitika makamaka chifukwa chakuti zomwe zili mu phukusili ndi zamadzimadzi zokhala ndi madzimadzi ambiri. Kamodzi kakawonongeka, pakhoza kukhalanso chitetezo chachiwiri. Nthawi yomweyo, chitetezo cha zigawo ziwiri za zipangizozi chingachedwetse kuyenda kwa madzi panthawi yonyamula. Chimateteza bwino ku zotsatira za zinthu zonyamula katundu.
Nthawi yotumizira: Okutobala-10-2022
