Ma catalyst a polyurethane amagwira ntchito yofunika kwambiri popanga zinthu za polyurethane, zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa cha kusinthasintha kwawo komanso magwiridwe antchito awo. Ma catalyst awa amathandizira kwambiri momwe mankhwala amachitira pakati pa ma polyol ndi isocyanates kuti apange ma polyurethane thovu, zokutira, ndi elasto...
Ma thovu a polyurethane (PU) amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa cha mphamvu zawo zosiyanasiyana, monga kutchinjiriza, kuphimba, ndi kapangidwe kake. Kagwiridwe ka ntchito ka thovu limeneli kamadalira kwambiri mtundu wa thovu lomwe likupangidwa, kaya ndi lotseguka kapena lotsekedwa, komanso chothandizira...
Ma thovu osinthasintha a polyurethane ndi zinthu zosiyanasiyana zomwe zimagwiritsidwa ntchito kwambiri m'njira zosiyanasiyana, kuyambira pa mipando mpaka mipando yamagalimoto. Kagwiridwe ka ntchito ka thovu limeneli kamakhudzidwa kwambiri ndi kusankha kwa ma catalyst, omwe amawongolera machitidwe ofunikira a mankhwala popanga thovu. Pakati pa...
Makampani opanga zinthu zopangira polyurethane ali ndi gawo lofunika kwambiri popanga thovu la polyurethane, zomwe zimathandiza opanga kukonza kuchuluka kwa zomwe zimachitika, kukhazikika kwa thovu, komanso mawonekedwe a zinthu zomaliza. Zinthu zopangira polyurethane ndizofunikira kwambiri poyendetsa machitidwe a mankhwala pakati pa polyols ndi isocyanate...
Thovu lopopera la polyurethane lakhala chinthu chofunikira kwambiri pa ntchito yomanga, kutchinjiriza, ndi mafakitale ena chifukwa cha kutchinjiriza kwake kwabwino kwambiri kutentha, kutseka mpweya, komanso kusinthasintha. Chinthu chofunikira kwambiri pakugwira ntchito kwa makina opopera ndi kusankha chothandizira choyenera cha polyurethane...
Ma thovu osinthasintha a polyurethane amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa cha kufewa kwawo, kulimba, komanso kusinthasintha kwawo. Udindo wa ma catalyst a polyurethane pakupanga ndi wofunikira kwambiri pakukwaniritsa zinthu zofunika monga kufanana kwa ma pore, kulimba, komanso kulimba kwambiri. Ma cat awiri apadera...
Thovu la polyurethane ndi chinthu chofunikira kwambiri pa mapanelo a masangweji, zomwe zimapereka kutchinjiriza kwabwino, kukhazikika kwa kapangidwe kake komanso kugwiritsa ntchito bwino kutentha. Mapanelo a masangweji amagwiritsidwa ntchito kwambiri pomanga nyumba, malo osungiramo zinthu zozizira komanso nyumba zamafakitale, ndipo amakhala ndi zigawo ziwiri zoonda za mphasa yolimba...
MXS-6 ndi silicone surfactant yogwira ntchito bwino kwambiri yomwe imapereka zabwino zambiri ku mapangidwe a thovu la polyurethane chifukwa cha mphamvu zake zabwino zoletsa moto. Sikuti imangowonjezera mapangidwe a thovu komanso imawonjezera kukana moto kwa thovu la polyurethane. MXS-6 ili ndi mankhwala osasungunuka ndi madzi...
Polyisocyanurate (PIR) ndi mtundu wa thovu la pulasitiki lopangidwa ndi thermosetting, lomwe limagwira ntchito bwino kuposa thovu la polyurethane (PU) lachikhalidwe. Ma polyurethane amapangidwa ndi momwe isocyanate monga diphenylmethane diisocyanate, kapena MDI, imagwirira ntchito ndi ma polyol, pomwe PIR imakhudza njira yovuta kwambiri...
Elastomer ya polyurethane ndi mtundu wa zinthu zomwe zimagwiritsidwa ntchito kwambiri, zimakhala ndi kusinthasintha kwabwino, kulimba komanso kusawonongeka, kotero zimagwiritsidwa ntchito kwambiri m'mbali zonse za moyo. Chimodzi mwazinthu zofunika kwambiri popanga ma elastomer a polyurethane ndikugwiritsa ntchito ma catalyst omwe amafulumizitsa zochita za mankhwala panthawi ya ...
Ma catalyst a polyurethane amagwira ntchito yofunika kwambiri popanga ma sandwich panels, mafelemu olimba a thovu ndi zinthu zokongoletsera, zomwe zingathandize kuti thovu la polyurethane ligwire bwino ntchito komanso kuti ligwire bwino ntchito. Ma catalyst omwe amagwiritsidwa ntchito mu izi ndi MXC-8 (DMCHA) ndi MXC-41, onse awiri...
Ma catalyst a polyurethane amathandiza kwambiri pakukweza magwiridwe antchito a thovu lolimba, kuphatikizapo thovu la panel ndi box, chifukwa limawonjezera liwiro la kuuma ndi kufooka. Mwachitsanzo, ma catalyst ochokera ku amine monga MXC-70 amatha kukonza njira youma ndi mawonekedwe enieni a thovu lomaliza. Tiyeni...
