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Buku Lotsogolera Kupanga Polyurethane: Kuchokera pa Kapangidwe ka Mamolekyulu mpaka Kukonza Magwiridwe Abwino
Dziwani momwe mapangidwe a polyurethane amapangidwira pogwiritsa ntchito ma polyol, isocyanates, ma catalysts, ma blowing agents, ndi zowonjezera. Dziwani momwe kapangidwe ka mamolekyulu kamadziwira magwiridwe antchito a thovu, zokutira, ma elastomers, ndi zomatira. ...Werengani zambiri -
Ziphuphu Zitatu Zodziwika Bwino za Polyurethane: Ma Pinhole, Ma Cavities Ochepa, ndi Zizindikiro Zoyendera — Zomwe Zimayambitsa ndi Mayankho a Uinjiniya
Chifukwa Chake Zolakwika Izi Zikubwereranso Kupanga Mu njira zopangira ndi kupanga polyurethane, mabowo a pinhole, ma shrinkage cavities, ndi flow marks ndi zina mwa zolakwika zomwe zimachitika mobwerezabwereza pamwamba pa makina osinthasintha komanso olimba a polyurethane...Werengani zambiri -
Momwe Kukhuthala ndi Kutanuka Zimasinthira Panthawi Yopanga Foam ya Polyurethane
Chifukwa Chake Khalidwe la Viscoelastic Lili Lofunika Pakupanga Thovu la Polyurethane Kugwira ntchito kwa thovu la polyurethane kumagwirizana kwambiri ndi kusintha kwa kukhuthala ndi kusinthasintha panthawi yopangira thovu. Kaya kupanga thovu losinthasintha, thovu lolimba loteteza, kapena polyurethane yapadera ...Werengani zambiri -
Zoona Zomwe Zili M'kati mwa Mavuto Okhudzana ndi Kugwirizana kwa Mapanelo a Polyurethane mu Machitidwe Ophulika a Pentane ndi Momwe Mungawathetsere
01. Chiyambi: Momwe Gulu Limodzi Losungunuka Linabweretsera Kutayika Kwakukulu Mu malo opangira zinthu a wopanga zida zomangira wamkulu, mapanelo a sandwich a polyurethane opangidwa mwatsopano opangidwa ndi zitsulo anakulungidwa bwino atachoka ...Werengani zambiri -
Kodi Mwataya Madzi? Kodi Polyurethane Amine Catalysts Ingathandize Bwanji?
Kutuluka kwa madzi ouma mu konkire ndi miyala yamwala kumafuna njira yapamwamba. Mavuto oterewa ndi ofunika kwambiri pazachuma. Malinga ndi bungwe la American Insurance Association, kutuluka kwa madzi kumawononga katundu woposa $10 biliyoni pachaka. Yankho lake lili mu ma polyurethane grout amakono. Izi ...Werengani zambiri -
Njira zitatu zomwe tertiary amine catalyst imathandizira kuthamanga kwa insulation
MOFAN TMR-2, yomwe imadziwika ndi nambala 62314-25-4, imadziwika ngati chothandizira chachitatu cha amine chomwe chimafulumizitsa kutetezedwa kwa mapaipi kudzera mu zochita zitatu zazikulu: kuyambitsa mwachangu, kukulitsa bwino kwa thovu, komanso kuchira mwachangu. Chothandizira ichi chimagwirizana ndi magulu a isocyanate, kuwonjezera reactivity yawo ndikupanga ...Werengani zambiri -
Njira yopangira khungu la polyurethane
Chiŵerengero cha Polyol ndi isocyanate: Polyol ili ndi hydroxyl yambiri komanso kulemera kwakukulu kwa mamolekyulu, zomwe zidzawonjezera kuchulukana kwa crosslinking ndikuthandizira kukulitsa kuchuluka kwa thovu. Kusintha isocyanate index, ndiko kuti, molar ratio ya isocyanate ku hydrogen yogwira ntchito mu po...Werengani zambiri -
Phunzirani za guluu wa polyurethane kuti mupake mosavuta popanda kupopera kutentha kwambiri
Mtundu watsopano wa guluu wa polyurethane unakonzedwa pogwiritsa ntchito ma polyacid ang'onoang'ono a mamolekyulu ndi ma polyol ang'onoang'ono a mamolekyulu ngati zinthu zoyambira zopangira ma prepolymer. Panthawi yokulitsa unyolo, ma polima opangidwa ndi nthambi zambiri ndi ma trimer a HDI adalowetsedwa mu polyuretha...Werengani zambiri -
Kapangidwe kabwino ka ma elastomer a polyurethane ndi momwe amagwiritsidwira ntchito popanga zinthu zapamwamba
Ma elastomer a polyurethane ndi gulu lofunika kwambiri la zipangizo za polima zogwira ntchito bwino. Ndi mphamvu zawo zapadera zakuthupi ndi zamakemikolo komanso magwiridwe antchito abwino kwambiri, ali ndi udindo wofunikira m'makampani amakono. Zipangizozi zimagwiritsidwa ntchito kwambiri m'mafakitale ambiri...Werengani zambiri -
Polyurethane yochokera ku madzi yopanda ionic yokhala ndi kuwala kolimba bwino kuti igwiritsidwe ntchito pomaliza chikopa
Zipangizo zophimba za polyurethane zimatha kuoneka zachikasu pakapita nthawi chifukwa cha kuwala kwa ultraviolet kapena kutentha, zomwe zimakhudza mawonekedwe awo ndi moyo wawo. Mwa kuyika UV-320 ndi 2-hydroxyethyl thiophosphate mu unyolo wa polyurethane, chinthu chosadziwika...Werengani zambiri -
Kodi zinthu zopangidwa ndi polyurethane zimalimbana ndi kutentha kwambiri?
1 Kodi zinthu zopangidwa ndi polyurethane sizimalimbana ndi kutentha kwambiri? Kawirikawiri, polyurethane siimalimbana ndi kutentha kwambiri, ngakhale ndi makina wamba a PPDI, kutentha kwake kwakukulu kumatha kukhala pafupifupi madigiri 150 okha. Mitundu ya polyester wamba kapena polyether mwina singathe...Werengani zambiri -
Akatswiri Padziko Lonse Okhudza Polyurethane Asonkhana ku Atlanta pa Msonkhano Waukadaulo wa Polyurethanes wa 2024
Atlanta, GA - Kuyambira pa Seputembala 30 mpaka Okutobala 2, Omni Hotel ku Centennial Park idzachita Msonkhano Waukadaulo wa Polyurethanes wa 2024, womwe udzabweretse akatswiri otsogola komanso akatswiri ochokera kumakampani opanga polyurethane padziko lonse lapansi. Yokonzedwa ndi American Chemistry Council...Werengani zambiri
