Nyob rau hauv Teb Chaws ntawm Organic Silicon, downstream lub cev silicon roj hmab cov ntaub ntawv tuaj yeem muab faib ua cov khoom siv thiab cov khoom ua kua, thiab ob qho khoom siv tam sim no tau siv dav hauv ntau yam lag luam loj, xws li potting iav kua nplaum, organic silicone dej, thiab sealing silicon roj hmab khoom, hluav taws xob. sealing accessories, thiab lwm yam. Muaj ntau yam zoo sib xws ntawm lawv daim ntawv thov teb thiab cov khoom siv, thiab lawv cov txheej txheem ntau lawm txawv.Hauv kev lag luam ntawm cov khoom, lawv lub luag haujlwm thiab kev ua haujlwm yog tib yam.Dab tsi yog qhov txawv ntawm cov khoom thiab cov khoom?

Qhov sib txawv tseem ceeb ntawm cov kua silica gel thiab cov khoom silica gel yog: ib qho yog kua thiab lwm yam yog khoom;tab sis tom qab ua tiav cov khoom tiav, ob qho tib si tsis yooj yim kom paub qhov txawv.Cov kua silica gel yog kua thiab muaj fluidity.Khoom silica gel yog khoom thiab tsis muaj fluidity.

Kev siv ntau yam:
(1) Cov kua silicone feem ntau yog siv rau hauv cov khoom me nyuam mos, cov khoom siv hauv chav ua noj silicone thiab cov khoom siv kho mob, nws tuaj yeem tiv tauj cov zaub mov thiab tib neeg lub cev;

(2) Cov khoom siv silica gel feem ntau yog siv rau cov khoom siv niaj hnub, kev lag luam thiab lwm yam khoom siv tsheb;

(3) Kev nyab xeeb ntawm cov kua silica gel thiab cov khoom siv silica gel: Cov kua silica gel yog cov pob tshab, cov khoom noj muaj kev nyab xeeb siab.Tsis muaj cov khoom siv xws li vulcanizing tus neeg sawv cev ntxiv thaum lub sij hawm molding txheej txheem.Cov khoom siv sealing yog tsim los ntawm kev sib khi.

Solid silica gel yog cov khoom siv translucent.Vulcanization yuav tsum tau ua kom ceev lub sijhawm kho.

Moulding:

Liquid Silicone (LSR): Lub npe tag nrho yog txhaj tshuaj molding kua silicone roj hmab, thiab cov khoom siv vulcanization yog lub tshuab txhaj tshuaj molding.Cov txheej txheem kev txhaj tshuaj molding tshuab yog yooj yim heev, cov khoom precision siab, thiab cov zis yog siab (cov kua nplaum A / B yog tov rau ob peb feeb ntawm qhov kub thiab txias).Cov ntaub ntawv yog tov thiab ntxiv nrog cov xim kua nplaum thiab catalyst kom cia li txhaj rau hauv pwm kab noj hniav yam tsis siv phau ntawv.Cov khoom zoo Cov khoom muaj fluidity zoo, muaj zog stretch thiab resilience, thiab cov pwm yog ua ke txhaj tshuaj molding, yog li cov khoom muaj ib tug yas txhaj tshuaj chaw nres nkoj thiab yeej tsis muaj nto parting kab.

Cov Khoom Siv Silicone: Cov khoom siv raw rau cov khoom silica gel molding yog ib qho khoom.Tom qab cov khoom lag luam silicone roj hmab sib xyaw ua ke los ntawm cov khoom sib tov, nws yuav tsum tau ntxiv cov xim kua nplaum thiab cov catalyst, thiab txiav nws mus rau hauv qhov loj me thiab manually muab tso rau hauv pwm kab noj hniav kom tsim thiab kho.Txoj kev ua haujlwm tsis siv neeg yuav tsum tau ua haujlwm los ntawm kev tuav cov pwm thiab tso tawm cov khoom.Vim hais tias cov khoom yog cov khoom, cov fluidity thiab stretch resilience yog me ntsis qis dua li cov kua.Cov khoom tsis muaj qhov chaw txhaj tshuaj, thiab cov khoom tiav tiav yuav muaj cov kab sab sauv thiab sab qis.

Dab tsi yog qhov txawv ntawm Liquid Silicone thiab Khoom Siv Silicone?
Cov khoom siv silica gel yog tsim los ntawm cov iav dej (sodium silicate) ua cov khoom siv raw, hydrolyzed hauv cov kua qaub nruab nrab los ua cov gel, thiab tom qab ntawd ua rau hauv silica gel los ntawm kev laus, ntxuav, ziab, thiab lwm yam, nyob ntawm seb cov dej ntsiab lus, translucent los yog dawb khoom.Cov khoom lag luam hauv kev lag luam muaj cov khoom tsis sib xws, kheej kheej, thiab microspherical silica gels, uas feem ntau yog siv los ua cov khoom siv rau vulcanization hauv fluidized txaj ua haujlwm.

ob.Thaum siv los ua catalyst cab kuj, silica gel feem ntau yog immersed nyob rau hauv ib qho kev daws teeb meem uas muaj catalytically active Cheebtsam, thiaj li hais tias cov tshuaj yog absorbed rau hauv lub pores ntawm silica gel, thiab cov active Cheebtsam yog faib rau saum npoo ntawm silica.Gelation los ntawm kev ziab, ua kom muaj zog, thiab lwm yam. Lub pore qauv ntawm silica gel muaj qhov cuam tshuam tseem ceeb ntawm cov khoom ntawm cov khoom siv txhawb nqa, xws li cov pore ntim thiab pore loj faib ntawm silica gel.Feem ntau, silica gel nrog qhov nruab nrab pore txoj kab uas hla ntawm tsawg dua 15 mus rau 20 yog hu ua nplua pore silica gel;thiab qhov nruab nrab pore txoj kab uas hla ntawm ntau tshaj 40 mus rau 50 angstroms yog hu ua coarse pore silica gel.

Ua kua silicone txheej txheem qhia

Cov kua silica gel yog siv rau hauv kev lag luam kom dehydrate sodium dej rau hauv silica sol los ntawm kev sib pauv ion.Nws yog translucent milky dawb kua nrog siab stability.Cov khoom silica gel ua cov khoom ntxeem tau tom qab ziab.Piv txwv li, nyob rau hauv kev npaj ntawm (phosphorus-molybdenum-niobium-oxygen) / silica catalyst rau kev npaj acrylonitrile los ntawm oxidative oxidation ntawm propylene, cov tshuaj uas muaj active Cheebtsam yog tov nrog silica sol, thiab microspheres yog npaj los ntawm txau catalyst.