nkhani

Uchi wa polima, womwe umadziwikanso kutiZinthu zofunika kwambiri za uchi wa PP, ndi chinthu chopepuka, chogwira ntchito zambiri chomwe chimadziwika m'mafakitale osiyanasiyana chifukwa cha kapangidwe kake kapadera komanso magwiridwe antchito ake. Nkhaniyi ikufuna kufufuza tanthauzo la uchi wa polima, momwe umagwiritsidwira ntchito komanso zabwino zake.

Uchi wa polima ndi chinthu chopangidwa ndi mayunitsi angapo a hexagonal opangidwa ndi polypropylene (PP) kapena ma polymer resins ena. Maselowa amakonzedwa mu kapangidwe ka uchi wa uchi, zomwe zimapangitsa kuti ukhale wolimba komanso wolimba. Kupepuka kwa uchi wa polima kumapangitsa kuti ukhale wabwino kwambiri pogwiritsidwa ntchito komwe kuchepetsa kulemera ndikofunikira, monga mafakitale oyendetsa ndege, magalimoto, zapamadzi ndi zomangamanga.

Chimodzi mwa zinthu zofunika kwambiri zauchi wa polimaNdi mphamvu zake zazikulu komanso kuuma kwake, zomwe zimamulola kupirira katundu wolemera ndi kugundana pamene akusunga kapangidwe kake. Izi zimapangitsa kuti ikhale chisankho chabwino kwambiri cha zinthu zapakati pa mapanelo a sandwich, zomwe zimathandiza khungu lakunja kukhala lolimba. Kuphatikiza apo, mapangidwe a uchi amapereka mphamvu zabwino kwambiri komanso kukana kugundana, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito komwe kumafunika chitetezo ku mphamvu zamphamvu ndi kugwedezeka.

Kusinthasintha kwa uchi wa polima kumakhudzanso mphamvu zake zotetezera kutentha ndi mawu. Maselo odzazidwa ndi mpweya mkati mwa kapangidwe ka uchi amapanga chotchinga chothandiza kusuntha kutentha, zomwe zimapangitsa kuti chikhale chisankho chabwino chotetezera kutentha m'nyumba, m'malo osungiramo firiji ndi ntchito zina zomwe zimakhudzidwa ndi kutentha. Kuphatikiza apo, kapangidwe ka uchi wa polima kamapangitsanso kuti uzitha kuyamwa phokoso, zomwe zimapangitsa kuti ukhale chinthu choyenera chowongolera phokoso komanso chotetezera kutentha m'malo osiyanasiyana.

Kuwonjezera pa mphamvu zawo zamakanika komanso zotetezera kutentha,uchi wa polimaAmadziwikanso chifukwa cha kukana dzimbiri komanso kulimba kwawo. Kusagwira ntchito kwa polypropylene ndi ma resins ena a polima omwe amagwiritsidwa ntchito popanga zisa za uchi kumapangitsa kuti zisavutike kwambiri ndi chinyezi, mankhwala ndi zinthu zachilengedwe, zomwe zimapangitsa kuti zigwire ntchito bwino komanso kudalirika kwa nthawi yayitali m'malo ovuta. Izi zimapangitsa kuti zisa za polima zikhale njira yokongola yogwiritsidwa ntchito m'malo a m'nyanja, m'mafakitale opangira mankhwala, komanso m'nyumba zakunja zomwe zimakhudzidwa ndi zinthu zowononga.

Ponseponse, uchi wa polima umapereka zabwino zambiri, kuphatikizapo kapangidwe kopepuka, mphamvu yayikulu, kutentha ndi kutchinjiriza mawu, komanso kukana dzimbiri, zomwe zimapangitsa kuti zikhale zinthu zosiyanasiyana zoyenera kugwiritsidwa ntchito m'njira zosiyanasiyana. Pamene ukadaulo ndi njira zopangira zinthu zikupitilira kupita patsogolo, kugwiritsa ntchito uchi wa polima ukuyembekezeka kukulirakulira, kupereka mayankho atsopano kumakampani omwe akufuna zinthu zopepuka, zolimba komanso zogwira ntchito bwino. Kaya mumagawo a ndege, magalimoto, za m'madzi kapena zomangamanga,Uchi wa polima ukupitirizabe kutsimikizira kuti ndi wofunika kwambiri monga zinthu zodalirika komanso zothandiza kwambiri.