Qhov sib txawv tseem ceeb ntawm qhov kawg -hydrogen silicone roj thiab sab-hydrogen silicone roj nyob hauv lawv cov qauv tshuaj. Xaus-hydrogen silicone roj muaj hydrogen-silicon pawg ntawm ob qhov kawg ntawm cov tee dej, thaum sab-hydrogen silicone roj tsuas muaj ib qho hydrogen-silicon pawg ntawm ib kawg. Tshwj xeeb tshaj yog, thaum kawg -hydrogen silicone roj, txhua ntawm ob lub silicon atom yog sib koom ua ke rau ob lub hydrogen atoms, thaum nyob rau sab-hydrogen silicone roj, tsuas yog ib qho silicon atom yog sib txuas rau ib lub hydrogen atom, nrog rau lwm cov silicon atom sib txuas rau lwm pab pawg.
Vim tias qhov kawg -hydrogen silicone roj molecules muaj ob silicon-hydrogen bonds, lawv muaj peev xwm emulsifying zoo hauv dej. Hauv qhov sib piv, sab -hydrogen silicone roj molecules muaj tsuas yog ib qho silicon-hydrogen bond, yog li lawv cov dej emulsifying kev ua tau qis dua qhov kawg- hydrogen silicone roj.
Cov khoom siv thiab kev siv ntawm qhov kawg -hydrogen- muaj cov roj silicone thiab sab -hydrogen- muaj cov roj silicone
Hydrogen-tawm cov roj silicone thiab sab- muaj cov roj silicone kuj txawv ntawm cov khoom thiab kev siv. Hydrogen- tshem tawm cov roj silicone muaj cov khoom zoo heev solubility thiab emulsifying, ua rau lawv haum raws li emulsifiers hauv surfactants, tshuaj, thiab tshuaj pleev ib ce. Tsis tas li ntawd, lawv tuaj yeem siv los tsim ntau yam kawg-pab pawg reactive linear hloov silicone roj, saw extenders rau ntxiv- hom kua silicone rubbers, crosslinking agents rau ntxiv- hom tshav kub-kho silicone rubbers, thiab yog cov intermediates tseem ceeb hauv thaiv copolymerization cov tshuaj tiv thaiv, nrog rau kev siv dav hauv cov txheej txheej.
Sab - muaj cov roj hydrogen silicone muaj cov tshuaj lom neeg thiab thermal stability ntau dua li qhov kawg - muaj cov roj hydrogen silicone. Lawv tuaj yeem siv los ua tus neeg sawv cev sib txuas hauv kev npaj ntawm polysiloxanes (tseem hu ua organosilicon polymers). Tsis tas li ntawd, sab- muaj cov roj hydrogen silicone tuaj yeem siv rau hauv kev npaj cov tshuaj polymeric chiv, tshuaj tua kab mob, thiab ua cov roj hmab.
Hauv cov ntsiab lus, kawg -hydrogen- muaj cov roj silicone thiab sab -hydrogen- muaj cov roj silicone sib txawv hauv cov qauv tshuaj, khoom siv, thiab kev siv. Kev nkag siab txog lawv qhov sib txawv thiab thaj chaw thov yog qhov tseem ceeb rau kev xaiv kom raug thiab siv lawv.
