Silica gel khoom yam ntxwv, kev siv tshuab thiab daim ntawv thov

Silica gel cov khoom muaj cov yam ntxwv ntawm kev ua haujlwm siab adsorption, zoo thermal stability, tshuaj stability, siab mechanical zog thiab lwm yam, thiab yog dav siv nyob rau hauv cov khoom tsim. Thiab cov khoom siv tau hloov kho rau hauv tshwj xeeb silica gel kom haum rau cov kev ua haujlwm ntawm cov khoom sib txawv, xws li luminous, tsis zoo ions, discoloration thiab lwm yam ntxwv.

Taw qhia rau silica gel

Silica gel yog ib yam khoom siv adsorption muaj zog heev, belongs rau cov tshuaj amorphous, uas muaj polysiloxane, silicone roj, silica dub (silica), coupling agent thiab muab tub lim, thiab lwm yam, lub ntsiab tivthaiv yog silica. Insoluble hauv dej thiab cov kuab tshuaj, tsis muaj tshuaj lom thiab tsis qab, tshuaj lom neeg ruaj khov, ntxiv rau cov alkali muaj zog, hydrofluoric acid tsis hnov ​​​​mob nrog ib yam khoom. Ntau hom silica gel tsim cov qauv micropore sib txawv vim lawv txoj kev tsim khoom sib txawv. Cov tshuaj lom neeg muaj pes tsawg leeg thiab cov qauv ntawm lub cev ntawm silica gel txiav txim siab tias nws muaj cov yam ntxwv ntawm ntau lwm yam khoom zoo sib xws uas nyuaj los hloov: kev ua haujlwm siab adsorption, zoo thermal stability, ruaj khov khoom, thiab siab mechanical zog.

Classification ntawm silica gel

Silicone tuaj yeem muab faib ua ntau yam yam ntxwv:

Raws li qhov muaj pes tsawg leeg tuaj yeem muab faib ua: ib feem thiab ob feem silica gel.
Raws li vulcanization kub tuaj yeem muab faib ua: kub vulcanization thiab chav kub vulcanization silicone.
Raws li cov duab ntawm cov khoom tuaj yeem muab faib ua: kua thiab khoom silica gel.
Raws li vulcanization cov tshuaj tiv thaiv tuaj yeem muab faib ua: condensation cov tshuaj tiv thaiv hom, platinum ntxiv cov tshuaj tiv thaiv hom thiab peroxide consolidation hom.
Raws li cov qauv saw tseem ceeb tuaj yeem muab faib ua: ntshiab silica gel thiab hloov silica gel.
Raws li cov yam ntxwv ntawm cov khoom lag luam tuaj yeem muab faib ua: hom kub thiab tsis kub tsis kam, hom tshuaj tiv thaiv zoo li qub, cov roj thiab cov kuab tshuaj tiv thaiv, hom kev ua haujlwm, hom ua npuas ncauj hom, siab lub zog tsim kua muag hom, nplaim hluav taws tiv thaiv hom, tsis tshua muaj compression deformation hom. .