Masiku ano, anthu amadera nkhawa kwambiri thanzi lawo. Anthu ena nthawi zambiri amawona nkhani zikunena kuti anthu ena omwe amadya zotengeka kwa nthawi yayitali amayamba kudwala. Chifukwa chake, tsopano anthu ali ndi nkhawa kwambiri ngati matumba apulasitiki ndi matumba apulasitiki a chakudya komanso ngati ali ovulaza thanzi lawo. Nawa njira zingapo momwe mungasinthire pakati pamatumba apulasitiki kuti chakudya ndi matumba wamba.
Ndikosavuta kugwiritsa ntchito matumba apulasitiki a chakudya ndi zinthu zina. Pakadali pano, pali mitundu iwiri ya m'matumba apulasitiki pamsika, imodzi imapangidwa ndi zida monga polyethylene, yomwe imatha kugwiritsidwa ntchito poizoni pazakudya ndipo imatha kugwiritsidwa ntchito popanga ndalama zambiri.
Matumba a chakudyaamadziwika kuti ndife matumba a chakudya, omwe pamakhala miyeso yambiri komanso yayikulu. Tinkagwiritsa ntchito zinthu zina zanyengo nthawi zambiri sizikhala zoopsa, zokhala ndi chilengedwe monga nkhani zazikuluzikulu. Ndipo zida zosiyanasiyana zimakhala ndi mawonekedwe osiyanasiyana, chifukwa chake tiyenera kusankha malinga ndi chakudya chomwe chimapangidwa.
Kodi ndi matumba amtundu wanji omwe ndi kalasi ya chakudya?
Pe ndi polyethylene, ndipo pe pulasitiki pulasitiki ndi kalasi ya chakudya. Pe ndi mtundu wa thermoplastic yopangidwa ndi ethylene kudzera polymerization. Ndiwopanda mphamvu komanso wopanda mphamvu, ndipo ali ndi kutentha kwapamwamba kwambiri (kutentha kotsika kwambiri ndi -100 ~ 70 ~). Ili ndi mankhwala abwino okhazikika, acid ndi alkali kukana, ndipo sakukhumudwitsidwa mumasupe wamba pa kutentha wamba. Ili ndi chipembedzo chamagetsi komanso mayamwidwe ochepa. Matumba a chakudya cha chakudya nthawi zambiri amagawidwa m'matumba wamba, thumba la chakudya cha chakudya, chakudya chophika cha chakudya, matumba owiritsa chakudya, chakudya chogwirira ntchito. Matumba apulasitiki wamba okhala ndi chakudya amaphatikiza pe (polyethylene), zojambulazo za aluminium, nylon ndi zinthu zophatikizika. Matumba ang'onoang'ono a chakudya ali ndi mawonekedwe ena kuti awonetsetse kuti chakudya ndichatsopano ndi matenda ndi zowola. Chimodzi ndichotseka kwathunthu zosungunulira, mafuta, gasi, nthunzi yamadzi ndi zina zotero; Wina ndi kukhala ndi vuto lokwanira kwambiri, kukana kapena kukana kozizira, kukana kozizira, kupewa kutentheza ndi kuwoneka bwino, komanso mawonekedwe okongola; Wachitatu ndi mawonekedwe osavuta ndi mtengo wotsika mtengo; Chachinayi ndi kukhala ndi mphamvu yabwino, matumba a pulasitiki okhala ndi mphamvu zambiri kulemera kwa kulemera kwa unit, kumatha kugonjetsedwa komanso kosavuta kusintha.
Matumba apansi akhungu ndi matumba apulasitiki wamba kuti azindikire njira
Njira yowonera utoto, matumba apulasitiki nthawi zambiri amkaka oyera, pulosemedwe, pulasitiki iyi imamverera kuti ndi phula la pulasitiki nthawi zambiri limakhala loyera lachikasu, kumva zomata pang'ono.
Njira yogwirizira madzi, mutha kuyika chikwama cha pulasitiki m'madzi, dikirani kanthawi kuti mupite, lipeza matumba apulasitiki apulasitiki, kumbuyo kwake ndi kotetezeka.
Njira yamoto. Matumba apulasitiki otetezeka ndiosavuta kutentha. Mukamayaka, adzakhala ndi lawi la buluu ngati mafuta a kandulo, pali fungo la paraffin, koma utsi pang'ono. Matumba apulasitiki osakayaka, lawi la chikasu, loyaka ndi kusungunuka limatulutsa silika, padzakhala fungo lokhumudwitsa ngati hydrochloric acid.
Kununkhira. Nthawi zambiri, matumba apulasitiki otetezeka alibe fungo lachilendo, m'malo mwake, pamakhala kununkhira kwamphamvu, komwe kumatha kupezeka chifukwa chowonjezera zina kapena zabwino.
Post Nthawi: Oct-21-2022