Aluminate coupling agents yog ib chav kawm ntawm organometallic compounds nrog txhuas atoms ntawm lawv cov tub ntxhais, muaj ob qho tib si inorganic thiab organic affinity. Lawv cov qauv molecular endows lawv nrog tshwj xeeb interfacial hloov kho muaj peev xwm, nthuav tawm ntau yam kev ua tau zoo hauv cov khoom sib xyaw thiab kev ua haujlwm. Kev nkag siab tob txog lawv cov yam ntxwv tseem ceeb yuav pab txhawb nqa lawv cov txiaj ntsig hauv kev siv.
Ua ntej, aluminate coupling agents muaj cov yam ntxwv zoo ntawm amphiphilic. Nyob rau hauv cov molecule, txhuas atoms txuas polar functional pawg thiab nonpolar ntev -chain alkyl pawg los ntawm bridging oxygen bonds. Ib qho kawg tuaj yeem tsim cov tshuaj lom neeg los yog lub cev muaj zog adsorption nrog cov chaw nquag xws li hydroxyl pawg thiab hlau ions nyob rau saum npoo ntawm inorganic fillers, thaum lwm qhov kawg tuaj yeem sib haum nrog cov organic polymer ntu, yog li tsim kom muaj "tus choj molecular" ruaj khov ntawm qhov sib cuam tshuam ntawm ob theem, txo qis kev sib tshuam thiab kev txhim kho dispersibility thiab compatibility.
Qhov thib ob, lawv muaj qhov nruab nrab reactivity thiab ntau yam kev siv. Piv rau silane coupling agents, aluminate coupling agents muaj kev ruaj ntseg zoo nyob rau hauv ntau yam matrix thiab muab tub lim tshuab, tsis tshua muaj kev cuam tshuam los ntawm ya raws, thiab tuaj yeem ua haujlwm ntawm chav tsev kub mus rau nruab nrab - kub. Lawv muaj lub qhov rais ua haujlwm dav, ua kom yooj yim rau kev siv cov txheej txheem sib txawv xws li yas, roj hmab, thiab txheej txheej.
Tsis tas li ntawd, aluminate coupling cov neeg ua haujlwm muab kev ua haujlwm zoo thiab kev lag luam. Lawv txo cov yaj viscosity, txhim kho cov khoom siv dispersion efficiency, txo qhov sib xyaw lossis extrusion lub sij hawm, thiab txo lub zog noj. Nyob rau tib lub sijhawm, lawv tuaj yeem txhim kho cov khoom siv kho tshuab, qhov ruaj khov, thiab huab cua tsis kam ntawm cov khoom tiav, ua kom muaj kev hloov pauv kev ua haujlwm thaum tswj lossis txo cov nqi.
Tsis tas li ntawd, cov khoom sib txuas no feem ntau pom muaj qhov tsis muaj zog, tsis muaj tshuaj lom, thiab zoo thermal stability, ua tau raws li cov kev cai ntawm kev tiv thaiv ib puag ncig ntsuab thiab kev nyab xeeb. Qee cov qauv hloov kho kuj tuaj yeem muaj cov cua sov, tiv thaiv roj, nplaim hluav taws, lossis UV tsis kam, ua tau raws li qhov yuav tsum tau ua raws li kev ua haujlwm tshwj xeeb.
Hauv cov ntsiab lus, aluminate coupling agents, nrog lawv cov qauv tsim muaj zog, txhim khu kev qha interfacial bonding, kev ua haujlwm dav dav, thiab kev phooj ywg ib puag ncig, tau dhau los ua cov khoom muaj txiaj ntsig zoo hauv cov khoom siv niaj hnub sib xyaw ua ke.
