Ma Hydrofluoroolefins (HFOs) ndi gulu la mankhwala omwe amaimira m'badwo wachinayi wa mpweya wopangidwa ndi fluorine. Mankhwalawa amapangidwa makamaka kuti achepetse kuwonongeka kwa chilengedwe pamene akusunga miyezo yogwirira ntchito yofunikira pa ntchito zosiyanasiyana zamafakitale. Ma HFO ali ndi...
Kodi Gel Catalyst ndi chiyani? Gel catalyst mu polyurethane chemistry ndi chinthu chomwe chimafulumizitsa reaction pakati pa isocyanate ndi polyol, ndipo polyurethane bonds zomwe zimapangidwa zimapereka kapangidwe komaliza ka zinthuzo. Reaction iyi ndi yofunika kwambiri popanga polyurethane chifukwa imaletsa...
Mau Oyamba pa Kapangidwe ka Mapanelo a Sandwich Mapanelo a sandwich ndi zinthu zomangira zodziwika bwino komanso zogwiritsidwa ntchito popanga nyumba zogona komanso zamalonda. Amapangidwa ndi zigawo ziwiri zakunja, nthawi zambiri zopangidwa ndi zitsulo monga chitsulo kapena aluminiyamu, ndi chinthu chapakati, nthawi zambiri chopangidwa ndi poly...
Kodi njira yogwirira ntchito ya Amine Catalysts pa Polyurethane ndi yotani? Ma amine catalysts ndi gawo lofunikira kwambiri pakupanga polyurethane ndipo ndi ofunikira kwambiri omwe amafulumizitsa kwambiri momwe zinthu zimachitikira pakati pa polyols ndi isocyanates (chomwe chimagwiritsidwa ntchito kwambiri popanga thovu la polyurethane),...
Monga ogulitsa otsogola a polyurethane catalysts, tikusangalala kufotokoza kufunika kwa ma catalysts amenewa popanga thovu la polyurethane, chinthu chogwiritsidwa ntchito m'mafakitale osiyanasiyana. Zogulitsa zathu, kuphatikizapo MXC-A33, MXC-T ndi ma catalysts ena apadera,...
MXC-B20 ndi chothandizira chochokera ku bismuth chomwe chingafulumizitse kupanga polyurethane pamene chikuganizira za chitetezo cha chilengedwe. MXC-B20 ndi chothandizira chothandiza kwambiri chachitsulo chomwe chimagwira ntchito limodzi ndi ma tertiary amines kuti chifulumizitse kuchitapo kanthu pakati pa isocyanates ndi poly...
MXC-T120 ndi chothandizira champhamvu cha organotin gel chomwe chimapereka kukhazikika kwabwino mumlengalenga ndikukweza magwiridwe antchito a polyurethane formulations. Ndi chothandizira cha dibutyltin chomwe chili ndi mphamvu yayikulu yopangira zinthu komanso kukhazikika kwabwino kwa hydrolysis, zomwe zimapangitsa kuti chikhale choyenera kugwiritsidwa ntchito mu njira yokhayo ya polyurethane...
