Tag: Kupaka Powder Polyurethane
Polyaspartic Coating Technology
Chemistry imachokera ku zomwe aliphatic polyisocyanate ndi polyaspartic ester, yomwe ndi aliphatic diamine. Ukadaulowu udagwiritsidwa ntchito poyambira popangira zida ziwiri za polyurethane zosungunulira zonyamula zosungunulira chifukwa ma esters a polyaspartic ndi abwino kwambiri opangira zokutira zolimba zolimba za polyurethane. ester ndiye chigawo chachikulu cha co-reactant pakuchita ndi polyisocyanate. The wapadera ndiWerengani zambiri …
Kodi Kupaka kwa Polyurea ndi Kupaka kwa Polyurethane ndi chiyani
Kupaka kwa Polyurea ndi Kupaka kwa Polyurethane Kupaka kwa Polyurea Kupaka kwa Polyurea kwenikweni kumakhala ndi zigawo ziwiri zozikidwa pa Amine yothetsedwa prepolymer yolumikizidwa ndi Isocyanate yomwe imapanga kulumikizana kwa urea. The crosslinking pakati zotakasika ma polima zimachitika pa liwiro lachangu pa kutentha yozungulira. Nthawi zambiri izi sizifuna chothandizira chilichonse. Popeza Mphika-moyo wa ❖ kuyanika koteroko ndi mkati masekondi; mtundu wapadera wa Plural Mfuti ya spray ndi yofunika kuti mugwiritse ntchito. Zovala zimatha kupanga mpaka 500 mpakaWerengani zambiri …
Kodi Moisture-cured polyurethane ndi chiyani
Kodi Moisture-cured polyurethane Moisture-curd polyurethane ndi gawo limodzi la polyurethane lomwe kuchiza kwake kumayambira chinyezi cha chilengedwe. Polyurethane yochiritsira chinyezi imakhala ndi isocyanate-terminated pre-polymer. Mitundu yosiyanasiyana ya pre-polymer ingagwiritsidwe ntchito kupereka katundu wofunikira. Mwachitsanzo, ma polyether polyether polyols a isocyanate amagwiritsidwa ntchito kuti azitha kusinthasintha chifukwa cha kutentha kwa magalasi otsika. Kuphatikiza gawo lofewa, monga polyether, ndi gawo lolimba, monga polyurea, limapereka kuuma kwabwino komanso kusinthasintha kwa zokutira. Komanso, katundu amalamulidwa ndiWerengani zambiri …
Njira ziwiri zopangira zokutira zokhala ndi kukana kwapadera kwa mar
Pali njira ziwiri zomwe zilipo zopangira zokutira zokhala ndi mar resistance. Akhoza kupangidwa molimba mokwanira kuti chinthu chomangiriracho sichimalowa pamtunda; kapena Zitha kupangidwa zotanuka mokwanira kuti zibwezeretsedwe pambuyo pochotsa kupsinjika kosokoneza. Ngati njira yowuma imasankhidwa, chophimbacho chiyenera kukhala ndi kuuma kochepa. Komabe, zokutira zotere zimatha kulephera mwa kusweka. Kusinthasintha kwamakanema ndichinthu chofunikira kwambiri chomwe chimathandizira kukana kwa fracture. Kugwiritsa ntchito 4-hydroxybutyl acrylate m'malo mwaWerengani zambiri …