Titanate coupling agents nyob rau hauv cov ntaub ntawv sib xyaw ua hauj lwm nyob rau hauv interfacial txuas ntawm inorganic fillers thiab cov organic matrix.Qhov standardization ntawm lawv cov txheej txheem tsim ncaj qha cuam tshuam rau stability thiab reproducibility ntawm kev hloov kho nyhuv. Tsim thiab nruj me ntsis siv cov qauv kev tsim kho tsis yog tsuas yog qhov yuav tsum tau ua ua ntej kom ntseeg tau tias cov khoom ua tau raws li cov qauv, tab sis kuj yog ib qho kev ntsuas tseem ceeb los txhim kho kev tsim khoom thiab txo cov kev pheej hmoo zoo.
Cov qauv tsim ua ntej npog cov kev cai sib koom ua ke rau ib puag ncig. Titanate coupling cov neeg sawv cev yog cov rhiab heev rau ya raws. Qhov chaw tsim kho yuav tsum muaj qhov kub thiab txias tsis tu ncua. Nws raug pom zoo tias qhov ntsuas kub nyob nruab nrab ntawm 15-30℃thiab qhov txheeb ze av noo tsis tshaj 40%, thiab dehumidification thiab cua tshuab yuav tsum tau muab los tiv thaiv cov huab cua los ntawm kev ua rau ester pawg hydrolysis thiab deactivation. Lub tsev kawm ntawv yuav tsum nyob deb ntawm cov kua qaub uas muaj zog, muaj zog alkalis, thiab cov neeg ua haujlwm dawb radical uas muaj zog heev, uas tuaj yeem ua rau tus neeg sawv cev sib txuas ua ke, kom ntseeg tau tias ib puag ncig cov tshuaj tiv thaiv dawb huv.
Qhov thib ob, cov qauv kev kho mob rau cov khoom siv hauv paus yog qhov tseem ceeb. Ua ntej siv, lub muab tub lim yuav tsum tau sieved thiab qhuav kom nws cov dej noo qis dua 0.1% thiab nws qhov chaw yog huv si thiab tsis muaj roj kom tsis txhob cuam tshuam nrog adsorption thiab cov tshuaj tiv thaiv ntawm tus neeg sawv cev coupling. Yog hais tias cov resin matrix muaj hygroscopic Cheebtsam, nws yuav tsum tau qhuav ua ntej ua. Tus neeg sawv cev sib txuas nws tus kheej yuav tsum raug tshuaj xyuas rau kev ntim khoom ncaj ncees; ib zaug qhib, nws yuav tsum tau siv sai li sai tau. Cov uas tsis siv yuav tsum tau muab kaw thiab khaws cia rau hauv lub thawv qhuav kom tsis txhob muaj kev sib cuag nrog cov av noo nyob ib puag ncig.
Cov txheej txheem ntxiv thiab dispersion yuav tsum ua raws li cov hauv paus ntsiab lus ntawm kev siv ntau thiab sib xws. Ua ntej daim ntawv thov, qhov zoo tshaj qhov sib piv yuav tsum tau txiav txim siab los ntawm kev ntsuam xyuas raws li hom muab tub lim, particle loj tis, thiab lub hom phiaj kev ua tau zoo. Qhov feem ntau yog 0.5% -3% ntawm qhov muab tub lim. Cov txheej txheem ntxiv tuaj yeem suav nrog cov kuab tshuaj dilution ua raws li kev tshuaj tsuag, kua-theem ua ntej- dispersion, lossis ncaj qha qhuav hmoov sib tov, siv cov khoom sib tov siab ({7}} ceev tsis pub tsawg dua 800 r / min) kom ua tiav cov txheej txheej. Rau cov txheej txheem qhuav, lub sijhawm sib tov yuav tsum tau tswj xyuas kom ntseeg tau tias tus neeg sawv cev sib txuas tau nthuav dav rau ntawm qhov chaw muab tub lim thiab tsim cov txheej txheem kev taw qhia; rau cov txheej txheem ntub dej, cov slurry pH thiab nplawm tus nqi yuav tsum tau saib xyuas kom tsis txhob muaj kev sib txuam ntau hauv zos uas tuaj yeem ua rau muaj kev cuam tshuam.
Kev ua haujlwm kub thiab lub sijhawm yuav tsum tau teeb tsa raws li kev ua kom cov yam ntxwv ntawm tus neeg sawv cev sib txuas. Qhov ntsuas kub ntawm qhov ntsuas kub yuav tsum tau txhais kom meej raws li cov ntaub ntawv ntsuas thermal. Kev ua haujlwm kub yuav tsum siab tshaj qhov qis ntawm qhov kev txwv no kom paub meej txaus cov tshuaj tiv thaiv, thaum tseem tshuav qis dua qhov kub decomposition los tiv thaiv thermal degradation. Thaum lub sij hawm melting los yog extrusion, tus neeg sawv cev sib txuas yuav tsum zoo dua ntxiv thaum lub sij hawm pib sib xyaw ntawm cov muab tub lim thiab cov resin los siv lub zog shear los txhawb nws cov kev faib tawm ntawm qhov sib txuam. Rau kev sib tov sib xyaw, tus neeg sawv cev sib txuas yuav tsum tau muab tso rau hauv cov khoom ua ntej, ua raws li kev sib ntxiv ntawm cov muab tub lim kom tsis txhob ncaj qha adsorption ntawm undispersed additives los ntawm muab tub lim.
Kev tswj kom zoo yuav tsum tau ua raws li tag nrho cov txheej txheem tsim kho. Kev kuaj thiab kuaj yuav tsum tau ua rau txhua pawg ntawm kev tsim kho, suav nrog kev tshuaj xyuas qhov muag, kev txiav txim siab noo noo, thiab kev ntsuas kev ua haujlwm ntawm lub ntsej muag tsim nyog (xws li dispersibility thiab kev ntsuas khoom siv tshuab). Tsuas yog tom qab cov ntaub ntawv ua tau raws li cov qauv tsim tuaj yeem ua tiav cov txheej txheem tom ntej. Cov ntaub ntawv kev tsim kho yuav tsum muaj cov ncauj lus kom ntxaws, suav nrog ib puag ncig ib puag ncig, cov khoom siv raw batch naj npawb, ntau npaum li cas, cov khoom siv tsis raug, thiab cov txiaj ntsig kev xeem kom paub meej tag nrho.
Hauv cov ntsiab lus, cov qauv kev tsim kho rau titanate coupling agents yog nyob rau hauv kev tswj ib puag ncig, raw khoom pretreatment, meej ntxiv, txheej txheem parameter optimization, thiab tag nrho - txheej txheem tswj kom zoo, tsim ib tug kaw - voj tswj system. Qhov no muab kev lav zoo rau qhov zoo ntawm kev hloov kho interface thiab nteg lub hauv paus txhim khu kev qha rau loj - nplai ntau lawm thiab daim ntawv thov.
