Silicone roj muaj lub luag haujlwm tseem ceeb hauv kev ua npuas ncauj stabilization, ua tus neeg sawv cev nucleation, emulsifier, thiab stabilizer. Ua npuas ncauj stabilizer, silicone roj yog ib tug surfactant uas yuav disperse polyurea zoo nyob rau hauv lub foaming system, ua raws li ib tug "lub cev cross-linking point" thiab ho nce lub viscosity thaum ntxov ntawm cov npuas dej sib tov kom tsis txhob ua npuas ncauj tawg.
Los ntawm kev nce kev sib nrig sib solubility ntawm ntau yam ntawm cov khoom ua npuas ncauj, silicone roj muaj cov nyhuv emulsifying, uas txhim kho qhov zoo ntawm cov khoom ua npuas ncauj. Nws ntxiv rau cov khoom ua npuas ncauj tuaj yeem txo qhov nro ntawm cov kua, ua rau cov pa tawg yooj yim dua. Cov txheej txheem no txhawb kev tsim cov npuas zoo, txhim kho cov npuas dej ntawm cov qauv ntawm tes thiab tswj cov pore loj, thiab txhim kho cov foaming stability.
Tus nqi ntawm cov roj silicone xav tau hauv cov txheej txheem ua npuas dej sib txawv raws li qhov ua npuas ncauj ntom ntom thiab lwm yam khoom hauv cov mis, tshwj xeeb tshaj yog stannous octoate thiab isoester index. Qhov ntau dua ua npuas ncauj xav tau ntau dua silicone ib puas feem ntawm polyether. Tus nqi tsim nyog txhim kho cov npuas lub cev tsis sib xws, cov qauv ntshiab, thiab cov tawv nqaij tuab tuab.
Kev noj tshuaj tsis raug ntawm cov roj silicone tuaj yeem ua rau lub cev qhuav dej lossis ua npuas ncauj tuab. Ntxiv cov roj silicone ntau dhau ua rau cov npuas zaj duab xis dhau lawm thiab muaj zog, ua rau cov npuas phab ntsa tsis tawg. Qhov teeb meem no ua rau kaw-cell tus nqi nce, tsis tshua muaj resilience, thiab ib tug tsis tsim nyog tus nqi ntawm tin catalyst thaum nyob rau hauv me me. Nyob rau hauv cov xwm txheej hnyav, lub npuas yuav kaw-cell thiab txawm shrinks.
Kev siv cov roj silicone uas tsim nyog yog qhov tseem ceeb raws li cov khoom sib txawv. Xaiv qhov zoo silicone roj ntau yam yog lub hauv paus rau kev ua tiav ua npuas ncauj ntau lawm. Los ntawm kev siv cov roj silicone roj ntau ntxiv, cov hlwb tuaj yeem ua kom muag muag thiab tsis tshua tawg. Qhov nam no tsim cov hlwb kaw thaum ntxiv ib qho kev sib tw ntawm toughness rau cov qauv ua npuas ncauj.