Kodi zojambula ndi ziti?
Tanthauzo Lakufunika la Purd
PulUrethane, zinthu zogwiritsidwa ntchito polima zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana. Polyirethane amapangidwa ndi mankhwala pakati pa isocynanate ndi polyyal, ndipo ali ndi thupi komanso mankhwala. Chifukwa cha pu amatha kusinthidwa ndikusintha kapangidwe kake, imagwiritsidwa ntchito pamapulogalamu osiyanasiyana, kuchokera ku zovala zomangamanga.
Gulu ndi katundu wa pu
Polyurethane amatha kutchulidwa m'mitundu yosiyanasiyana, kuphatikiza zitsamba zolimba, zikopa zosinthika, elastomers, zofukizira ndi zomatira ndi zomatira ndi zomatira. Zida zamtchire zimagwiritsidwa ntchito pobisalira ndikumanga mapanelo, pomwe ziwanda zosinthika zimagwiritsidwa ntchito kwambiri m'mipando, mipando yamagalimoto ndi matiresi. Elastomers, kuwonetsera, kuwonetsa ngati kutalika kwa mphira ndipo amagwiritsidwa ntchito ngati nsapato zazitali, matayala ndi zina zotero. Chifukwa cha kuchuluka kwake kwabwino, kukana kwa abrasion, kukana mafuta ndi kukalamba kukana, puckate zokulitsa ntchito zabwino mu mapulogalamu osiyanasiyana.
Kugwiritsa ntchito pu mu mafakitale osiyanasiyana
Polyirethane ali ndi ntchito zingapo m'magawo osiyanasiyana. Mwachitsanzo, m'makampani olemba malembawo, Pu amagwiritsidwa ntchito popanga zikopa zopangidwa, zomwe zimakhala ndi mawonekedwe ofanana ndi zikopa koma ndizotsika mtengo komanso zosavuta kuzisamalira. Mu makampani omanga, chithovu cha Pu amagwiritsidwa ntchito ngati zinthu zapamwamba kwambiri, zomwe zimakondedwa chifukwa cha mawonekedwe ake ozama komanso chinyontho chabwino. Mu makampani ogulitsa maofesi, zida za PU zimagwiritsidwa ntchito popanga zikopa za pampando komanso zigawo zamtundu wamkati chifukwa zimalimbikitsa komanso kulimba.
Ubwenzi Wachilengedwe ndi Kukhazikika Kwa Zinthu Zojambula
Kuzindikira kwa chilengedwe kumawonjezeka, kukhazikika kwa zinthu zopangira zida zakhala nkhawa yayikulu. Pachikhalidwe, mankhwala ena owopsa amatha kugwiritsidwa ntchito popanga pu, koma m'zaka zaposachedwa, makampaniwo adapanga njira zothandizira zachilengedwe monga polsurethane komanso kugwiritsa ntchito zida zophatikizika. Zinthu zatsopanozi sizimangochepetsa chilengedwe, komanso zimathandizira chitetezo cha mankhwala komanso kulimbikira.
Chidule
Kodi zojambula ndi ziti? Ndi zinthu zothandiza kwambiri, zomwe zimagwiritsidwa ntchito kwambiri polymer zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana. Kaya mutavala zovala, zomangamanga, zokha, kapena kutetezedwa chilengedwe, Puke amakondedwa chifukwa cha njira zabwino kwambiri za sayansi. Ndi kupititsa patsogolo ukadaulo ndi kusintha kwa zofunikira zachilengedwe, kugwiritsa ntchito ma scape ndi ma vacs a gwiritsitsani ntchito aluso apitilizabe kukula ndi kusintha.