Lwm qhov ntsuas tseem ceeb hauv cov roj silicone feem ntau suav nrog cov hauv qab no:
1. Ceev: Qhov ceev ntawm silicone roj feem ntau yog nyob nruab nrab ntawm 0.93 ~ 0.975 g/mL (25/4 degree ). Qhov ntsuas no qhia txog qhov zoo thiab ntim ntawm cov roj silicone, uas yog ib qho tseem ceeb rau qee yam kev siv uas yuav tsum tau muaj kev tswj xyuas meej ntawm cov roj silicone siv.
2. Melting point: Silicone roj muaj qhov qis melting point, feem ntau ntawm -50 degree thiab -75 degree . Qhov no txhais tau hais tias cov kua silicone tseem ua kua ntawm qhov kub thiab txias thiab muaj qhov dej tsis zoo.
3. Boiling point: Lub boiling point ntawm silicone roj sib txawv nrog lub siab thiab degree ntawm polymerization, tab sis nyob rau hauv tej yam kev mob, nws boiling point yog siab dua. Qhov kub kub taw tes txhais tau hais tias cov roj silicone tsis hloov pauv ntawm qhov kub thiab txias thiab muaj thermal stability zoo.
4. Flash point: Lub flash point ntawm silicone roj yog feem ntau ntawm 300 degree thiab 315 degree. Lub flash point yog ib qho ntawm cov cim tseem ceeb los ntsuas kev nyab xeeb ntawm cov roj silicone, thiab qhov taw tes siab dua txhais tau tias cov roj silicone tsis ua rau muaj kev nyab xeeb xws li hluav taws thaum siv.
5. Viscosity: Ntxiv nrog rau CST (centistan) uas tau hais dhau los ua ib chav tsev ntawm kinematic viscosity, viscosity ntawm silicone roj kuj tuaj yeem qhia tau rau lwm yam xws li mPa·s. Viscosity yog ib qho kev cuam tshuam ncaj qha ntawm cov kua roj silicone, thiab cov roj silicone nrog cov viscosities sib txawv yog tsim rau cov xwm txheej sib txawv.
6. Solubility: Silicone roj feem ntau yog soluble nyob rau hauv non-polar solvents, thiab nyuaj rau yaj nyob rau hauv polar solvents. Solubility sib txawv nrog rau qib ntawm polymerization, thiab cov roj silicone uas tsis muaj molecular-yuag yog soluble ntau dua li cov roj silicone roj.
7. Chemical stability: Silicone roj kuj ruaj khov rau fatty acids, molten sulfur, phenol, kua ammonia, paraffin, thiab lwm yam, tab sis nyob rau hauv tej yam kev mob (xws li thaum interacting nrog cov khoom ntsev xws li ferric chloride thiab ammonium chloride), gelation thiab lwm yam kev hloov pauv yuav tshwm sim.
8. Cov khoom siv hluav taws xob: Silicone roj muaj cov khoom siv hluav taws xob zoo, qhov dielectric tas li txo qis nrog qhov nce ntawm qhov kub thiab txias tab sis hloov me ntsis, lub zog muaj zog tsawg, thiab qhov ntim resistivity txo nrog qhov nce ntawm qhov kub thiab txias.
9. Nto Tension: Silicone roj muaj qhov laj thawj tsawg, uas yog ib qho laj thawj tseem ceeb rau nws qhov kev tiv thaiv zoo, kev rho tawm cov khoom thiab lub cev thiab lub rajricating cov khoom.
10. Kev nyab xeeb: Silicone roj feem ntau tsis muaj tshuaj lom, tsis qab, tsis muaj ntxhiab, thiab tsis muaj teeb meem rau tib neeg lub cev, yog li nws yog dav siv hauv tshuaj, khoom noj khoom haus thiab tshuaj pleev ib ce.
Txhawm rau ua tiav, cov ntsuas kev ua haujlwm ntawm cov roj silicone npog ntau yam xws li lub cev muaj zog, tshuaj lom neeg ruaj khov thiab kev nyab xeeb, uas ua ke txiav txim siab txog kev ua haujlwm ntawm cov roj silicone hauv ntau qhov chaw.
