Silicone roj hmab (MQ, VMQ, PVMQ)
Lub cev, silicones yog raws li silicon, ib qho khoom rho tawm los ntawm quartz. Txhawm rau tsim qhov kev sib xyaw no
Txhawm rau tsim ib qho elastomer, pawg organic xws li methyl, phenyl thiab vinyl pawg yuav tsum tau txuas nrog silicon atoms. Qhov sib txawv ntawm sab chains
Ntxiv tuaj yeem ua tiav qhov kev hloov pauv tseem ceeb hauv kev ua haujlwm. Silicone muaj kev tiv thaiv zoo heev, tiv thaiv ozone thiab corona,
Zoo dielectric stability thiab tsis kam mus rau ntau yam roj, tshuaj thiab cov kuab tshuaj. Thiab ntawm tag nrho cov elastomers,
Silicone muaj qhov zoo tshaj plaws uas tsis tshua muaj kev hloov pauv. Tab sis nws kuj muaj qee qhov tsis zoo, xws li lub zog tensile tsawg, tsim kua muag thiab
Kev hnav tsis zoo.
Curing Systems – Peroxide Kho vs. Platinum Kho
Cov txheej txheem silicone tebchaw feem ntau yog peroxide kho. Platinum kho compounds muab kev yooj yim dua thiab
Tsis tshua muaj volatile teeb meem. Platinum-kho silicones feem ntau yog siv rau hauv kev kho mob los yog lwm yam kev siv uas yuav tsum tau evaporation tsawg
thaj chaw ntawm cov tshuaj, tab sis lawv yuav tsum tau tsim nyob rau hauv cov chav huv si, thiab tus nqi ntawm platinum catalysts yog siab dua, yog li lawv
kim tshaj li peroxide kho.
Lwm yam kev hloov pauv
• Silicones tsuas yog muab faib ua "dawb daim ntawv teev npe" cov khoom xyaw uas tau teev tseg hauv 21.CFR 177.2600
Ua rau siv qhov twg elastomer yuav los rau hauv kev sib cuag nrog zaub mov lossis dej haus
daim ntawv thov. • Silicones tuaj yeem raug xa mus rau National Sanitation Foundation (NSF) kom pom zoo siv hauv cov dej haus
daim ntawv thov.
• Silicones feem ntau yog siv rau hauv tsheb xws li khau khau plua plav, roj lim li qub, lub teeb gaskets, thiab lwm yam.
• Cov khoom siv silicone tuaj yeem siv rau hauv kev kho mob uas tshwj xeeb yuav tsum tau ua raws li USP CLASS VI.
Cov ntaub ntawv dav dav
ASTM D 1418 Lub Npe: Q, MQ, VMQ, PVMQ
ISO / DIN 1629 cov npe: Q, MQ, VMQ, PVMQ
Standard xim: xeb
Hardness ntau yam: 25 txog 90 Ntug A
ASTM D2000 / SAE J 200 code: FC,
FE, GE tus nqi txheeb ze: nruab nrab mus rau siab