Chikwama chonyamula zovala za pulasitiki cha PVC chowonekera bwino

Chikwama cha PVC chomwe chili ndi zipu ndi mtundu wa thumba la pulasitiki. Chigawo chachikulu ndi polyvinyl chloride, chomwe chili ndi mtundu wowala, sichingagwe dzimbiri komanso chimakhala cholimba. Chifukwa cha kuwonjezera zinthu zina monga mapulasitiki ndi zinthu zoletsa kukalamba popanga zinthu kuti chikhale cholimba, cholimba, cholimba, ndi zina zotero, ndi chimodzi mwa zinthu zodziwika bwino, zodziwika bwino komanso zomwe zimagwiritsidwa ntchito kwambiri padziko lonse lapansi.

Pali njira zosavuta zosiyanitsira zabwino ndi zoyipa za zinthu za PVC:

1. Fungo: Fungo likamalemera kwambiri, zinthuzo zimakhala zoipa kwambiri. Opanga ena amawonjezera fungo mwadala kuti abise fungo loipa, kotero thumba la pulasitiki lomwe lili ndi fungo loipa limavulaza thupi, kaya ndi lonunkha kapena lonunkha.

Kukhudza kwachiwiri: Kunyezimira kwa pamwamba kumakhala bwino, zinthu zopangira zimakhala zoyera komanso zapamwamba.

Kung'ambika katatu: Kung'ambika kumatanthauza kulimba. Matumba ndi oipa ngati angang'ambidwe mzere wowongoka ngati pepala. Chikwama chabwino cha pulasitiki cholongedza, ngakhale gawo lakunja litang'ambitsidwa panthawi yong'ambitsidwa, gawo lamkati limalumikizidwabe.

Pali mafakitale ena opanga zovala omwe amagwiritsa ntchito matumba apulasitiki obwezerezedwanso. Matumba apulasitiki opakizira zovala awa ndi otsika mtengo, ndipo mankhwala ophera tizilombo amawonjezedwa panthawi yopanga, zomwe zimasiya zinthu zina zoopsa m'matumba. Malinga ndi mawonekedwe a zipangizozi, muyezo wowerengera ubwino wa matumba apulasitiki pa zovala ndi "fungo limodzi, mawonekedwe awiri, ndi kukoka katatu". Ngati filimu ya thumba la pulasitiki ili ndi zinyalala padzuwa kapena kuwala, iyenera kukhala thumba la zinthu zobwezerezedwanso.