Silane coupling agents ndi mtundu wa organic silicon mankhwala okhala ndi mitundu iwiri ya mankhwala mu molekyulu, ntchito kupititsa patsogolo kugwirizana kwenikweni pakati ma polima ndi inorganic zipangizo.Izi zitha kutanthauza kuwonjezeka kwa kumamatira kowona, komanso kusintha kwa kunyowa, rheological properties, ndi zina zogwirira ntchito.Ma coupling agents athanso kukhala ndi zotsatira zosintha pamalo olumikizirana kuti apititse patsogolo malire pakati pa magawo achilengedwe ndi ma inorganic.
Chifukwa chake,silane coupling agentsamagwiritsidwa ntchito kwambiri m'mafakitale monga zomatira, zokutira ndi inki, mphira, kuponyera, magalasi a fiberglass, zingwe, nsalu, mapulasitiki, zodzaza ndi mankhwala apamtunda.
mankhwala ake tingachipeze powerenga akhoza kuimiridwa ndi ambiri chilinganizo XSiR3, kumene X ndi sanali hydrolytic gulu, kuphatikizapo alkenyl magulu (makamaka Vi) ndi magulu hydrocarbon ndi magulu zinchito monga CI ndi NH2 kumapeto, mwachitsanzo carbon ntchito magulu;R ndi gulu hydrolyzable, kuphatikizapo OMe, OEt, etc.
Magulu ogwira ntchito omwe amanyamulidwa mu X amatha kuchitapo kanthu ndi magulu ogwira ntchito m'ma polima achilengedwe, monga OH, NH2, COOH, ndi zina zotero, potero amalumikiza silane ndi ma polima a organic;Gulu logwira ntchito likakhala ndi hydrolyzed, Si-R imasinthidwa kukhala Si-OH ndipo zopangidwa ndi zinthu monga MeOH, EtOH, ndi zina zambiri zimapangidwa.Si OH imatha kukumana ndi ma condensation ndi kutaya madzi m'thupi ndi Si OH m'mamolekyu ena kapena Si OH pamwamba pa gawo lapansi lomwe limapangidwa kuti lipange zomangira za Si O-Si, komanso kuchitapo kanthu ndi ma oxides ena kuti apange zomangira zokhazikika za Si O, kulolasilanekulumikiza ndi inorganic kapena zitsulo zipangizo.
Wambasilane coupling agentszikuphatikizapo:
Sulfur-containing silane: bis – [3- (triethoxysilicon) propyl] – tetrasulfide, bis – [3- (triethoxysilicon) propyl] – disulfide
Aminosilane: y-aminopropyltriethoxysilane, NB – (aminoethyl) – v-aminopropyltrimethoxysilane
Vinylsilane: Vinyltriethoxysilane, Vinyltrimethoxysilane
Epoxysilane: 3-glycidyl ether oxypropyltrimethoxysilane
Methacryloxysilane: y methacryloxypropyltrimethoxysilane, v methacryloxypropyltrimethoxysilane
Nthawi yotumiza: Aug-23-2023