1. Taw qhia
1.1 Qhov tseem ceeb thiab kev siv ntawmFluorosilicon roj hmab
Fluorosilicone roj hmab yog cov roj hmab hluavtaws nrog kev ua tau zoo tshwj xeeb uas tuav ib qho chaw tshwj xeeb hauv kev lag luam vim nws qhov tshwj xeeb tsis kam rau kub, roj, thiab tshuaj lom neeg puas tsuaj. Cov khoom siv tshwj xeeb ntawm cov qauv molecular no ua rau nws ruaj khov hauv cov xwm txheej hnyav, uas ua rau nws yog ib qho tseem ceeb ntawm cov sectors xws li petrochemicals, aircraft, automotive manufacturing, thiab cov khoom siv kho mob. Nws yog qhov pom tseeb tias qhov tseem ceeb ntawm fluorosilicone roj hmab kev cia siab nyob rau hauv cov ntawv thov no vim tias nws cuam tshuam ncaj qha rau cov cuab yeej ua haujlwm thiab kev nyab xeeb.
1.2 Ib qho yooj yim tearing teeb meem thiab nws cuam tshuam rau cov khoom ua tau zoo
Txawm hais tias muaj ntau yam txiaj ntsig ntawm fluorosilicone roj hmab, cov ntawv thov siv tau nquag ntsib qhov teeb meem ntawm cov khoom tawg yooj yim. Ntxiv rau qhov txo qis ntawm cov khoom muaj peev xwm kaw, uas yuav ua rau muaj roj lossis roj xau, yooj yim ripping kuj tuaj yeem ua rau cov cuab yeej tsis ua haujlwm lossis txawm tias muaj kev nyab xeeb. Tsis tas li ntawd, cov khoom lag luam yooj yim-rau-tua qhov teeb meem yuav nce cov nqi kho thiab txo nws txoj kev pab cuam lub neej, uas yuav cuam tshuam rau cov khoom siv lub neej thiab kev lag luam muaj peev xwm sib tw hauv kev ua lag luam. Yog li, nws yog ib qho tseem ceeb kom ua tib zoo tshuaj xyuas qhov ua rau ntawm fluorosilicone roj hmab cov khoom 'ua rau tsim kua muag thiab tshawb xyuas cov kev kho mob ua haujlwm txhawm rau txhim kho cov khoom zoo thiab ua kom tau raws li cov neeg siv khoom xav tau.
2. Kev soj ntsuam ntawm cov laj thawj uas yooj yim tearing
2.1 Cov ntaub ntawv formula
Cov khoom muaj pes tsawg leeg ntawm fluorosilicone roj hmab cuam tshuam nws lub zog tsim kua muag. Ib qho ntawm cov ntsiab lus tseem ceeb cuam tshuam rau cov khoom zoo, cov txheej txheem vulcanization, tsim cov roj hmab crosslinking ntom ntom thiab cov qauv sib txuas. Lub zog tsim kua muag tuaj yeem cuam tshuam los ntawm kev sib txuas tsis sib xws los ntawm kev xaiv vulcanization tsis raug. Hom thiab ntau npaum li cas ntawm cov fillers siv kuj yuav cuam tshuam loj npaum li cas cov ntaub ntawv kua muag. Piv txwv li, kev ntxiv cov pa roj carbon dub tsuas yog yuav ntxiv dag zog rau cov khoom muaj peev xwm tiv taus rips, thaum ntxiv ntau dhau tuaj yeem ua rau nws nkig thiab tawg yooj yim dua.
2.2 Cov txheej txheem ua haujlwm
Qhov zoo thiab cov qauv ntawm cov khoom tsim nrog fluorosilicone roj hmab yog cuam tshuam ncaj qha los ntawm cov xwm txheej thaum lub sij hawm vulcanization thiab cov txheej txheem molding siv. Lub zog tsim kua muag ntawm cov khoom siv tuaj yeem cuam tshuam los ntawm kev ua txhaum ntawm nws cov qauv sab hauv los ntawm kev xaiv tsis raug vulcanization kub, ntev, thiab siab. Cov teeb meem no muaj xws li over- lossis under-vulcanization. Hauv cov txheej txheem molding, qhov sib txawv xws li kev txhaj tshuaj nrawm thiab compression piv kuj tseem ceeb heev. Cov txheej txheem tsis txaus yuav ua rau muaj kev sib faib tsis sib xws ntawm kev nro sab hauv hauv cov khoom kawg, uas ua rau muaj peev xwm ripping.
2.3 Siv ib puag ncig yam
Cov khoom lag luam ua los ntawm fluorosilicone roj hmab muaj qhov cuam tshuam rau qhov kub thiab txias thiab kev siv tshuab thaum siv. Kev ua tau zoo ntawm cov khoom siv thiab nws cov kua muag kuj tuaj yeem cuam tshuam los ntawm qhov kub thiab txias. Cov qauv sab hauv ntawm cov khoom kuj tseem tuaj yeem raug mob los ntawm kev ntxhov siab, xws li nro, compression, los yog shear, tshwj xeeb tshaj yog nyob rau hauv qhov kev ntxhov siab concentration qhov twg ripping yog feem ntau tshwm sim. Tsis tas li ntawd, kev tiv thaiv rau kev rhuav tshem ntawm cov khoom yuav tsis muaj zog los ntawm lwm yam xws li roj lossis tshuaj lom neeg puas tsuaj.
3. Kev ua kom zoo tshaj plaws rau kev tsim cov khoom siv
3.1 Xaiv qhov tsim nyog vulcanization system los txhim kho cov khoom tsim kua muag
Ib qho ntawm cov ntsiab lus tseem ceeb cuam tshuam rau fluorosilicone roj hmab kev ua tau zoo yog cov txheej txheem vulcanization. Nws yog ib qho tseem ceeb los xaiv qhov tsim nyog accelerator thiab vulcanizer los tsim ib qho kev sib txuas thiab txhim khu kev qha sib txuas. Cov txheej txheem vulcanization tuaj yeem ua kom muaj txiaj ntsig zoo los ua kom cov khoom tsim kua muag ua haujlwm. Kev siv lub tshuab peroxide vulcanization, piv txwv li, tuaj yeem txo cov khoom tsim tawm thaum lub sij hawm vulcanization txheej txheem, uas yuav txo cov khoom tsis zoo thiab ua rau nws lub zog tsim kua muag tag nrho.
3.2 Kho hom thiab kev faib ua feem ntawm cov fillers kom sib npaug hardness thiab toughness
Fillers muaj qhov cuam tshuam loj rau lub zog tsim kua muag ntawm fluorosilicone roj hmab, ntxiv rau nws cov yam ntxwv ntawm lub cev xws li hardness thiab hnav tsis kam. Cov khoom siv lub zog tsim kua muag tuaj yeem nce ntxiv los ntawm kev siv cov khoom tsim nyog, xws li calcium carbonate, silica, lossis carbon dub. Txhawm rau lav tias cov khoom khaws cia qhov tsim nyog hardness yam tsis poob nws qhov toughness, cov khoom muab tub lim yuav tsum tau ua tib zoo tswj tib lub sijhawm. Qhov kom muaj nuj nqis ntawm cov muab tub lim tuaj yeem txhim kho cov khoom tsim kua muag tiv thaiv, qhov ntau ntxiv tuaj yeem ua rau nws tawg. Ib qho ntxiv uas yuav tsum tau coj mus rau hauv tus account thaum optimizing daim ntawv qhia cov ntaub ntawv yog cov muab tub lim dispersion. Kev cuam tshuam zoo tuaj yeem lav tias cov muab tub lim yog dispersed uniformly thoob plaws hauv cov roj hmab matrix, tiv thaiv cov concentration ntawm cov kev ntxhov siab hauv zos thiab txhim kho cov khoom siv tag nrho. Tsis tas li ntawd, kev siv cov thev naus laus zis kho saum npoo tuaj yeem ntxiv dag zog rau cov khoom tsim kua muag thiab ua rau cov muab tub lim ntau dua nrog cov roj hmab matrix.
4. Kev txhim kho kev ntsuas rau kev siv tshuab
4.1 Optimize vulcanization txheej txheem tsis tau los txo qhov tsis xws luag sab hauv
Ib theem tseem ceeb hauv kev tsim cov khoom siv roj hmab, vulcanization muaj kev cuam tshuam ncaj qha rau cov khoom ua haujlwm kawg. Cov khoom tsim kua muag lub zog tuaj yeem nce ntxiv los ntawm kev ua tiav kev txo qis hauv qhov tsis zoo xws li npuas thiab sib npaug sib txuas los ntawm kev ua kom zoo ntawm cov txheej txheem vulcanization tsis. Txhawm rau lav tias cov khoom ua tiav qhov kev sib txuas zoo tshaj plaws nyob rau hauv cov txheej txheem vulcanization, qhov no suav nrog kev hloov pauv ntawm vulcanization kub, sijhawm, siab, thiab vulcanization nruab nrab. Piv txwv li, qhov ntsuas kub uas tsim nyog tuaj yeem txhawb txoj kev sib txuas sib txuas kom zoo ib yam, tab sis qhov kub siab heev tuaj yeem ua rau cov khoom siv dhau los ua vulcanized thiab cuam tshuam nws cov kua muag ua haujlwm.
4.2 Txhim kho molding thev naus laus zis los txo cov khoom lag luam kev ntxhov siab thiab txhim kho kev sib luag
Cov yam ntxwv macroscopic thiab microstructure ntawm cov khoom siv roj hmab yog cuam tshuam ncaj qha los ntawm molding tshuab. Cov kev ntxhov siab sab hauv uas cov khoom tsim tawm thaum lub sij hawm molding yuav raug txo, thiab cov khoom sib xws tuaj yeem nce ntxiv, los ntawm kev txhim kho kev txhaj tshuaj molding lossis compression molding cov tswv yim thiab siv cov qauv pwm tsim. Tsis tas li ntawd, cov khoom lag luam kev ntxhov siab thiab kev phom sij yuav raug txo qis ntxiv los ntawm kev tswj cov pwm nrawm, siab, thiab kub.
5. Cov kev daws teeb meem thiab cov lus qhia
5.1 Cov phiaj xwm txhim kho kev sib txuas ua ke cov khoom tsim thiab kev siv tshuab
Kev txhim kho dav dav hauv cov khoom tsim thiab kev siv thev naus laus zis yuav tsum tau ua kom tiav cov kua muag tsis kam ntawm cov khoom siv roj hmab fluorosilicone. Ua ntej, lub ntuj toughness thiab tsim kua muag lub zog ntawm cov khoom yuav raug txhim kho los ntawm kev xaiv ib tug zoo vulcanization txheej txheem thiab maximizing hom thiab kom muaj nuj nqis ntawm fillers. Qhov thib ob, cov khoom sib xws thiab kev cia siab tuaj yeem txhim kho ntxiv los ntawm kev txo qis hauv qhov tsis zoo thiab kev ntxhov siab los ntawm kev hloov kho cov txheej txheem vulcanization thiab kev nce qib hauv cov tshuab molding.
5.2 Muab cov lus qhia siv thiab kev saib xyuas kom ntev cov khoom lag luam
Txhawm rau ua kom lub neej ntawm cov khoom siv roj hmab fluorosilicone, kev siv thiab kev saib xyuas kom zoo yog qhov tseem ceeb raws li kev nce qib hauv cov txheej txheem tsim khoom. Thaum siv cov khoom siv roj hmab fluorosilicone, nws tau qhia tias cov neeg siv nyob rau hauv qhov kev ua haujlwm kub thiab siab ntau yam txhawm rau txo qis kev ua haujlwm tsis zoo los ntawm kev ua haujlwm sab nraud. Yuav kom ua tiav kom tsis txhob muaj qhov tsis zoo los ntawm ripping, nws raug nquahu kom tsis tu ncua xyuas lub xeev sealing thiab hnav ntawm cov khoom thiab hloov lossis kho nws raws li xav tau.
5.3 Hais txog qhov tseem ceeb ntawm kev tswj kom zoo thiab kev txhim kho tas mus li
Lub hauv paus rau kev lav qhov kev cia siab ntawm fluorosilicone roj hmab cov khoom yog kev tswj kom zoo. Cov txheej txheem tswj kev ua tau zoo yuav tsum tau tsim nyob rau txhua theem ntawm cov txheej txheem tsim khoom, txij li kev soj ntsuam cov khoom siv raw mus rau qhov kawg ntawm kev tshuaj xyuas cov khoom. Txhawm rau lav qhov tsis sib xws thiab kev ruaj ntseg ntawm cov khoom, cov teeb meem hauv cov txheej txheem tsim khoom yuav raug pom thiab daws sai sai los ntawm kev siv cov kev tswj xyuas zoo.