Chiyambi Mu makampani a magalimoto amakono, zipangizo za polyurethane (PU) zimagwira ntchito yofunika kwambiri popanga mapangidwe opepuka, kukulitsa chitonthozo, komanso kulimbitsa kulimba. Kuyambira mipando yamagalimoto ndi ma dashboard mpaka ma headliner ndi makina oteteza mawu, zida za polyurethane zimapezeka pafupifupi...
Chiyambi PMDETA, chidule cha Pentamethyldiethylenetriamine, ndi madzi oyeretsedwa opanda mtundu mpaka achikasu omwe amadziwika ndi mphamvu zake zoyambitsa komanso kugwirizana kwakukulu mu kapangidwe ka mankhwala. Ndi nambala ya CAS 3030-47-5, PMDETA imasungunuka mosavuta m'madzi ndi zinthu zosungunulira zachilengedwe, zomwe zimapangitsa kuti ikhale ngati ide...
Chiyambi Mu makampani amakono a magalimoto, thovu lofewa la polyurethane (PU) lakhala chinthu chofunikira kwambiri pa mipando ya mipando yamagalimoto. Kuphatikiza kwake kwapadera kwa chitonthozo, kulimba, komanso kusinthasintha kwa kapangidwe kake kumapangitsa kuti likhale chisankho choyamba cha opanga magalimoto ndi ogulitsa padziko lonse lapansi. Poyerekeza ndi zida zina...
Pakupanga thovu la polyurethane, kukwaniritsa kapangidwe ka thovu, kuchuluka kwake, ndi mphamvu ya makina zomwe mukufuna kumadalira pazinthu zambiri - pakati pawo, kutentha kwa zinthu ndi kutentha kwa malo ndi ziwiri mwa zofunika kwambiri. Kumvetsetsa momwe magawo a kutentha awa amakhudzira thovu la polyurethane...
Foam yokumbukira, yomwe imadziwikanso kuti polyurethane viscoelastic thovu, yakhala imodzi mwa zipangizo zodziwika kwambiri pa ntchito zamakono zotonthoza. Kuyambira matiresi ndi mapilo mpaka mkati mwa magalimoto ndi nsapato, mphamvu yapadera ya foam yokumbukira yogwirizana ndi mawonekedwe a thupi pamene ikupereka chithandizo chabwino kwambiri ndi ...
Chiyambi Thovu losinthasintha ndi mwala wapangodya wa chitonthozo chamakono, chomwe chimapezeka mu chilichonse kuyambira pa matiresi ndi ma cushion a sofa mpaka mipando yamagalimoto ndi insulation ya acoustic. Pakati pa kupanga kwake pali kuvina kovuta kwa mankhwala: momwe polyols ndi isocyanates zimachitikira. Ngakhale kuti izi ndi zinthu zazikulu...
Thovu la Viscoelastic (VE foam), lomwe limadziwikanso kuti thovu lokumbukira, ndi chinthu cha polyurethane chogwira ntchito bwino chomwe chimagwiritsidwa ntchito kwambiri mu matiresi, mapilo, mipando yamagalimoto, ndi ma cushion a mafakitale. Kapangidwe kake kapadera kobwerera pang'onopang'ono komanso kozungulira thupi kamachokera ku njira yoyendetsera bwino ya polyurethane...
Monga ogulitsa otsogola a polyurethane catalyst ku China, timapereka ma catalyst a PU ogwira ntchito bwino kwambiri pamitundu yosiyanasiyana ya thovu losinthasintha la polyurethane. Kaya mukupanga thovu lofewa la mipando, matiresi, mipando yamagalimoto, kapena zinthu za thovu lopindika pang'onopang'ono,...
1. Chiyambi: Kutsegula Magwiridwe Abwino mu Rogid Thovu ndi Advanced Catalysts Mu dziko la sayansi ya zinthu, polyurethane rigid thovu ndi mwala wapangodya pa ntchito zosiyanasiyana, kuyambira kutchinjiriza mu zomangamanga ndi firiji mpaka zida zamagalimoto ndi ma CD. Zawo...
Ma panelo a masangweji akhala gawo lofunikira kwambiri pakupanga zinthu zamakono chifukwa cha kutentha kwawo, mphamvu ya kapangidwe kake, komanso kugwiritsa ntchito bwino zinthu. Pakati pa mitundu yosiyanasiyana ya mapanelo a masangweji, omwe ali ndi zinthu za polyurethane (PIR) ndi omwe amakondedwa kwambiri m'mafakitale osiyanasiyana...
