Roj Hmab Yog Dab Tsi?

Kub ua hauj zog:

Cov khoom siv ua kua organic cov roj silicon-oxygen (Si-O) raws li cov qauv tsim qauv tseem ceeb, lub zog ntawm CC nyiaj yog 82.6 kcal / g qauv, lub zog nyiaj ntawm Si-O nyiaj hauv silicone yog 121 kcal / g qauv, thiaj li lub siab thermal stability ntawm cov khoom siv silicone. Cov tshuaj sib txuas ntawm cov tshuaj molecule tsis tawg lossis yaj ntawm qhov kub ntawm qhov kub (lossis hluav taws xob tsis txaus). Silicones tiv taus tsis tsuas rau qhov kub thiab txias, tab sis kuj rau qis kub, thiab tuaj yeem siv dhau ntawm qhov kub ntau. Txawm hais tias nws yog tshuaj lom neeg lossis cov cuab yeej lub cev, qhov hloov ntawm qhov kub thiab txias yog qhov me me. 2.

Weathering tsis kam:

Lub saw tseem ceeb ntawm cov khoom siv silicone yog -Si-O-, tsis muaj ob daim ntawv pov thawj nyob ua ib ke, yog li nws tsis yooj yim decomposed los ntawm ultraviolet teeb thiab ozone. Silicones muaj cov thermal stability zoo dua li lwm cov polymers thiab tiv taus qhov tsis haum thiab huab cua dua li lwm cov polymers. Silicone nyob rau hauv cov huab cua ib puag ncig hauv kev pabcuam lub neej mus txog ntau caum xyoo.

Cov Khoom Siv Hluav Taws Xob:

Txhua cov khoom siv silicone muaj qhov zoo hluav taws xob rwb thaiv tsev, lawv cov hluav taws xob poob, qhov tsis kam, voltage tsis kam, arc tsis kam, corona tsis kam, ntim resistivity thiab nto resistivity yog cov zoo tshaj plaws ntawm cov ntaub ntawv insulating, thiab lawv cov khoom siv hluav taws xob muaj feem cuam tshuam los ntawm kub thiab zaus. Yog li ntawd, lawv yog cov ntaub ntawv ruaj khov hluav taws xob rwb thaiv tsev, yog siv dav hauv hluav taws xob, hluav taws xob kev lag luam. Ntxiv rau kev tiv thaiv zoo thaum tshav kub kub, silicone kuj muaj cov dej zoo heev, uas yog cov khoom siv hluav taws xob nyob rau hauv qhov chaw ntub dej ntawm kev siv lub siab tso siab.

Physiologically inert:

Polysiloxanes yog cov uas tsis muaj neeg paub ntau. Lawv tiv taus kev laus lom, tsis muaj kev tsis lees txais nrog tsiaj lub cev, thiab muaj cov khoom zoo anticoagulant.

Tsis tshua muaj qhov nro thiab cov nplaim hluav taws xob tsawg:

Lub ntsiab saw ntawm silicone yog hloov tau yooj yim heev, thiab nws lub zog intermolecular muaj ntau yam tsis muaj zog tshaj li ntawm cov roj carbon hydrocaron, yog li nws muaj qis viscosity, tsis muaj zog sab hauv lub cev tsis sib haum, tsawg zog ntawm lub zog thiab cov zaj duab xis muaj zog muaj peev xwm tshaj hydrocarbons ntawm tib lub cev nyhav. Qhov no tsis tshua muaj qhov nro thiab lub ntsej muag tsis tshua muaj lub zog yog vim li cas vim li cas nws siv rau hauv ntau cov ntawv thov: hydrophobicity, defoaming, ua npuas dej.