Muaj qhov sib txawv tseem ceeb ntawm qhov kawg-hydrogen silicone roj thiab sab-hydrogen silicone roj nyob rau hauv ntau yam, uas yog feem ntau xav txog lawv cov qauv tshuaj, khoom thiab daim ntawv thov teb.
Cov qauv tshuaj
Terminal hydrogen silicone roj: Hauv nws cov qauv tshuaj, silicon atoms ntawm ob qho kawg yog txuas nrog hydrogen atoms, tsim ib daim ntawv cog lus hydrogen silicon. Cov qauv no tso cai rau qhov kawg hydrogen silicone roj molecule kom muaj ob daim ntawv cog lus hydrogen silicon, muab nws cov khoom tshwj xeeb.
Sab hydrogen silicone roj: Tsis zoo li lub davhlau ya nyob twg hydrogen silicone roj, tsuas yog ib qho silicon atom nyob rau sab hydrogen silicone roj molecule muaj hydrogen atom txuas nrog nws, uas yog, tsuas yog ib qho hydrogen silicon daim ntawv cog lus, thaum lwm yam silicon atom txuas nrog lwm pab pawg.
xwm
Solubility thiab emulsification: Vim hais tias lub davhlau ya nyob twg hydrogen silicone roj molecule muaj ob silicon hydrogen bonds, nws solubility thiab emulsification muaj peev xwm nyob rau hauv dej kuj muaj zog. Txawm li cas los xij, cov dej emulsification kev ua tau zoo ntawm sab-hydrogen silicone roj kuj tsis muaj zog vim tias tsuas muaj ib daim ntawv cog lus hydrogen silicon xwb.
Kev ruaj ntseg: Lateral hydrogen silicone roj ua tau zoo dua nyob rau hauv cov nqe lus ntawm tshuaj stability thiab thermal stability, uas tej zaum yuav muaj feem xyuam rau tib hydrogen silicon daim ntawv cog lus nyob rau hauv nws cov qauv molecular.
Daim ntawv thov teb
Terminal hydrogen silicone roj: vim nws zoo solubility thiab emulsifying zog, davhlau ya nyob twg hydrogen silicone roj yog dav siv raws li ib tug emulsifier nyob rau hauv surfactant, tshuaj, tshuaj pleev ib ce thiab lwm yam teb. Nyob rau tib lub sijhawm, nws kuj yog siv los ua cov khoom siv ntxiv rau hauv number case, coatings, plastics thiab lwm yam kev lag luam, thiab muaj ntau yam kev siv nyob rau hauv daim ntawv ntawm txheej. Tsis tas li ntawd, terminal hydrogen silicone roj kuj yog ib qho tseem ceeb reactive intermediate, uas yuav siv tau nyob rau hauv kev hloov kho cov tshuaj xws li yas resins.
Sab hydrogen silicone roj: txawm hais tias cov dej emulsification kev ua tau zoo ntawm sab hydrogen silicone roj tsis zoo li qhov kawg hydrogen silicone roj, nws cov tshuaj muaj zog thiab thermal stability ua rau nws muaj qhov tshwj xeeb daim ntawv thov nqi hauv qee qhov chaw. Piv txwv li, hauv kev npaj ntawm polysiloxanes (tseem hu ua silicone polymers), lateral hydrogen silicone roj feem ntau yog siv los ua tus neeg sawv cev crosslinking. Tsis tas li ntawd, nws tseem tuaj yeem siv rau hauv kev npaj cov tshuaj polymer chiv, antioxidants thiab roj hmab ua teb.
Hauv cov ntsiab lus, muaj qhov sib txawv tseem ceeb hauv cov qauv tshuaj, cov khoom thiab daim ntawv thov kev lag luam ntawm qhov kawg-hydrogen silicone roj thiab sab-hydrogen silicone roj. Kev nkag siab txog qhov sib txawv no yog qhov tseem ceeb rau kev xaiv kom raug thiab siv ob lub roj silicone.
