Kodi zida za pulasitiki zinayamba bwanji kugwiritsa ntchito makina olemba masinthidwe?
Mbiri ya plastics imapita kwa zaka za m'ma 1900, akatswiri a zamadzimadoki adapanga utoto ndi zigawenga kuti adyetse mafakitale obowoka a Britain. Pochita izi, akatswiri azamankhwala adazindikira kuti zinthu zopangidwa zimatha kusintha mawonekedwe pansi pa kutentha ndi kukakamiza, ndikusunga mawonekedwe akakhala ozizira. Zosinthasintha kuposa zida zachilengedwe komanso zachilengedwe monga mphira, galasi ndi amber. Ndi kudzoza koteroko, pulasitikiyo adapangidwa kumayambiriro kwa zaka zotsatira. Mpaka pano, pulasitiki akhoza kuwoneka paliponse m'moyo wathu.
Ndi zinthu ziti zomwe zingagwiritsidwe ntchito polemba makina
Pulasitiki ndi zinthu polymer ndi kuphatikiza. Poyerekeza ndi chitsulo, nkhuni ndi zida zina, pulasitiki ili ndi maubwino otsika mtengo ndi mawongole okwera kwambiri, motero amagwiritsidwa ntchito kwambiri pakupanga zinthu.
Izi zisanachitike, tinagwiritsa ntchito chosindikizira ndege, ndipo tsopano tigwiritsa ntchito makina olemba malembawo, kuti zitsamba za ma laser ndiosavuta, nthawi yomweyo, moyo wautumiki umakhala motalika, nthawi zambiri samasintha makina ena.
Pali zigawo zisanu ndi ziwiri zapulasitizi zomwe zimagwiritsidwa ntchito pamsika wa zopangira katundu:
Chiweto: Mabotolo amadzi a mchere, mabotolo a carboctic acid, madzi mabotolo a soya ndi soya msuzi m'matumbo ndi zina zomwe zimagwiritsidwa ntchito pazomwe zimagwiritsidwa ntchito
HDPE nthawi zambiri imasungidwa mu kanema wophatikizika ndi mapulaneti ena.
PVC nthawi zambiri imagwiritsidwa ntchito popanga kunja kwa malonda, zofunikira pa tsiku ndi tsiku, ndi zina.
Ldpe imagwiritsidwa ntchito makamaka popanga filimu yomata ndi matumba apulasitiki a chakudya
PP nthawi zambiri imagwiritsidwa ntchito popanga zigawo za pulasitiki ndi mafilimu a pulasitiki.
PS imakonzedwa mu filimu ndi filimu ya pulasitiki.
PC nthawi zambiri imagwiritsidwa ntchito mu katundu wa ogula komanso phukusi lopindika.
CO2 Makina Osewerera Makina Othandizira Masamba apulasitiki
Makina osewerera a fiber polemba zitsanzo za pulasitiki
Kodi chiwonetsero cha chuke chimakuchitirani chiyani?
Pakadali pano, zaka zopitilira 10 zokhudzana ndi ukadaulo wa laser kuthawira, ku Foacco, mankhwala, nkhuni, nkhuni, nkhuni, nkhuni, zomangira, zimatha kupereka makasitomala ambiri aluso!
