Qhov sib txawv ntawm silicone thiab silicone roj hmab

Silicone roj hmab tau siv dav, tab sis qee tus neeg yuav tsis tuaj yeem paub qhov txawv ntawm silicone roj hmab thiab silica gel, thiab lub npe tsis tau txiav txim siab.Niaj hnub no, tus editor yuav ua tib zoo saib ntawm qhov sib txawv thiab kev faib tawm ntawm silicone thiab silicone roj hmab.Tam sim no, lub tswv yim ntawm lo lus "silicone" tsis yog tus qauv.Txog tam sim no, tsis muaj lub npe zoo.Thaum koj hnov ​​lo lus "silica gel", koj yuav tsum to taub seb nws puas yog silica gel los yog silicone-muaj hluavtaws roj hmab, los yog seb nws yog inorganic silica gel los yog organic silica gel nyob rau hauv qhov kev ntsuam xyuas zaum kawg.

"Silica gel" raug xa mus los ntawm ntau cov ntsiab lus xws li silicone roj hmab, silicone roj hmab, thiab silicone.Kev sib raug zoo ntawm silicone roj hmab thiab silica gel yog txawv ntawm silicone roj hmab thiab muaj xws li silicone roj hmab.Silicone roj hmab yog cov organic "silica gel" ntawm "silica gel"."Silicon" yog ib lo lus siv hauv Hong Kong thiab Taiwan.Nws yog hu ua "silicone" hauv Suav teb av loj.Silicone thiab Silicone yog transliterations ntawm lus Askiv silicone.Nws yog feem ntau hais tias nws kuj txhais tau tias "silicone".

Hauv cov ntsiab lus, silica gel tuaj yeem muab faib ua ob pawg, organic silica gel thiab inorganic silica gel, raws li lawv cov khoom thiab muaj pes tsawg leeg.Ua ntej, kuv yuav piav qhia txog cov roj hmab silicone.

1. Silicone roj hmab kev ua tau zoo thiab kev tsis zoo

Silicone roj hmab yog qhov loj tshaj plaws thiab feem ntau siv cov khoom siv silicone.Tom qab vulcanization, silicone roj hmab muaj cov cua kub zoo heev, tsis kub tsis kam, huab cua tsis kam, dej repellency, hluav taws xob rwb thaiv tsev, thiab lub cev muaj zog inertia.

Cov Khoom Tseem Ceeb thiab Kev Siv Cov Khoom Siv Roj Hmab Silicone: Nyob ntawm lawv cov vulcanization kub, silicone roj hmab tuaj yeem muab faib ua ob pawg: kub (rhuab) vulcanization thiab chav kub vulcanization.Cov roj hmab kub kub yog siv rau hauv kev tsim khoom ntawm ntau yam khoom siv roj hmab silicone, thaum chav tsev kub roj hmab feem ntau yog siv los ua cov nplaum, cov ntaub ntawv potting thiab pwm.

Kub vulcanized silicone roj hmab (HTV)

Thaum tshav kub kub vulcanized silicone roj hmab (HTV) yog cov khoom tseem ceeb tshaj plaws ntawm cov khoom siv silicone, thiab methyl vinyl silicone roj hmab (VMQ) yog qeb tseem ceeb tshaj plaws ntawm HTV feem ntau hu ua roj hmab kub.Methyl vinyl silicone roj hmab (cov roj hmab nyoos) tsis muaj xim, tsis muaj ntxhiab, tsis muaj tshuaj lom thiab tsis muaj cov khoom tsis huv.Cov roj hmab nyoos yog sib xyaw nrog cov cuab yeej tsim nyog, kev tswj cov qauv, vulcanizers thiab lwm yam khoom ntxiv raws li xav tau.Purification, cua sov, compression lossis extrusion, ua raws li ob-kauj ruam vulcanization rau hauv ntau yam khoom.Nws cov khoom muaj hluav taws xob rwb thaiv tsev zoo heev, muaj zog tiv thaiv arcs, coronas, thiab sparks, waterproof, noo noo pov thawj, cuam tshuam tsis kam, cuam tshuam tsis kam, physiological inertia, breathability thiab lwm yam khoom.Nws yog tsuas yog siv nyob rau hauv aviation, instrumentation, electronics thiab khoom siv, navigation, metallurgy, machinery, tsheb, kev kho mob thiab kev noj qab haus huv, thiab lwm yam sectors, thiab yuav siv tau los tsim seal rings, gaskets, raj, thiab cables ntawm ntau yam duab.Tib neeg lub cev, cov hlab ntsha, cov pa ua pa thiab cov roj hmab pwm, pwm tso cov neeg ua haujlwm rau precision casting, thiab lwm yam.

Chav kub vulcanized silicone roj hmab (RTV)

RTV silicone roj hmab feem ntau muaj ob pawg: hom condensed thiab additive hom."Lub additive-hom chav tsev kub nplaum nplaum yog raws li ib tug linear polysiloxane muaj ib pawg vinyl, siv ib tug hydrogen-muaj siloxane raws li ib tug cross-linking tus neeg sawv cev, thiab undergoes ib tug cross-linking cov tshuaj tiv thaiv nyob rau hauv lub chav tsev kub rau nruab nrab kub nyob rau hauv lub xub ntiag ntawm ib tug siloxane. catalyst los ua elastomer.Nws muaj kev tiv thaiv dej zoo heev thiab hluav taws xob rwb thaiv tsev, thiab tib lub sijhawm, nws muaj lub cev zoo thiab lub zog zoo xws li lub zog tensile, txheeb ze elongation, thiab lub zog tsim kua muag vim yog kev taw qhia ntawm cov pab pawg dav hlau.Radiation sulfurization thiab peroxide ntxiv.Nws yog tsim rau ntau yam sulfurization txoj kev xws li sulfurization thiab ntxiv molding sulfurization, thiab yog dav siv rau tshav kub tsis kam, noo noo tsis kam, hluav taws xob rwb thaiv tsev, thiab high-strength silicone roj hmab khoom.

Condensation-type room-temperature vulcanized silicone rubber yog tus cwj pwm los ntawm cov tshuaj tiv thaiv condensation ntawm silicone hydroxyl thiab lwm yam khoom siv, thiab sib txuas ntawm chav tsev kub los ua ib qho elastomer.Cov khoom tau muab faib ua ib lub ntim ntim thiab ob lub ntim ntim.puab.Ib qho khoom siv vulcanized silicone roj hmab (RTV-1 roj hmab luv luv) yog ib qho ntawm cov khoom tseem ceeb ntawm condensed silicone roj hmab.Nws feem ntau yog tsim los ntawm lub hauv paus polymers, crosslinkers, catalysts, fillers thiab additives.Cov khoom yog yooj yim heev vim hais tias nws tau ntim rau hauv lub kaw hose, nyem tawm thaum siv, raug rau huab cua thiab ces vulcanized rau hauv ib tug elastomer.Cov khoom vulcanized tuaj yeem siv rau lub sijhawm ntev ntawm qhov kub ntawm (-60 txog + 200 ° C), muaj hluav taws xob rwb thaiv tsev zoo thiab tshuaj lom neeg ruaj khov, muaj dej zoo heev, ozone, thiab huab cua tsis kam, thiab muaj kev sib raug zoo rau ntau yam hlau.nce.Thiab cov khoom siv tsis yog hlau.Kev siv tau.Nws yog tsuas yog siv rau txheej ntau yam khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, thiab ua lub luag haujlwm xws li rwb thaiv tsev, pov thawj noo noo, cuam tshuam tsis kam, cov khoom tiv thaiv nto rau cov khoom siv semiconductor, sealing muab tub lim, thiab elastic nplaum.

Ob chav chav kub vulcanized silicone roj hmab (RTV-2 roj hmab luv luv) tsis yooj yim li RTV-1 roj hmab, tab sis nws muaj ntau yam sib xyaw ua ke.Cov khoom siv vulcanized nrog ntau yam tshwj xeeb thiab cov yam ntxwv tuaj yeem tau txais nrog ib hom.Yog li ntawd, nws yog dav siv los ua cov khoom siv rau rwb thaiv tsev, encapsulation, caulking, sealing, ya raws proofing, vibration proofing, thiab cov menyuam raug tsim nyob rau hauv kev lag luam xws li khoom siv hluav taws xob, tsheb, machinery, kev tsim kho, textiles, tshuaj, thiab lub teeb kev lag luam., Printing thiab lwm yam Tsis tas li ntawd, vim hais tias RTV-2 muaj cov pwm tso tawm zoo heev, nws yog dav siv los ua cov khoom pwm mos rau duplicating thiab tsim cov khoom siv, khoom siv tes ua, khoom ua si, khoom siv hluav taws xob, thiab tshuab qhov chaw.

Ib qho kev siv ntawm silicone sealants yog iav ntaub thaiv phab ntsa.Cov iav thiab aluminium alloy thav duab yog glued nrog organic silicon structural adhesive raws li cov khoom siv rau sab nrauv phab ntsa, cov pob qij txha telescopic yog waterproof thiab kaw nrog organic silicon weathering nplaum.Lwm daim ntawv thov muaj xws li aluminium alloy qhov rooj thiab qhov rais, yas steel qhov rooj thiab qhov rais perimeter sealing, iav mounting thiab txav zawj pob qij txha, rivet thiab kho cov ntsia hlau sealing: huv si khoom thiab countertops, Waterproof seals ntawm phab ntsa, chav ua noj, chav dej rooj tog, thoob dej yug ntses, qab nthab, hlau. ru tsev, showcases, txee, phab ntsa panels, xim hlau daim hlau.Siv rau waterproof caulking seals ntawm txoj kev loj daim hlau.

Ntxiv nrog rau kev tsim cov sealants, RTV suav nrog cov khoom siv sib khi siv hauv kev lag luam xws li aerospace, nuclear fais fab nroj tsuag, cov khoom siv hluav taws xob, tshuab, thiab tsheb, cov khoom siv silicone potting siv rau potting hluav taws xob cov khoom, thiab cov ntaub ntawv mos mos.Xws li silicone pwm adhesive siv... Kev thov rau cov ntau yam no kuj tsawg, tab sis nyob rau hauv ntau zaus lawv yog qhov tseem ceeb.

Inorganic silica gel (silica gel)

Inorganic silica gel yog ib qho adsorbent uas muaj zog heev, feem ntau yog npaj los ntawm kev ua haujlwm ntawm sodium silicate nrog sulfuric acid thiab ua raws li cov txheej txheem tom qab kev kho mob xws li kev laus thiab cov kua qaub foaming.Silica gel yog cov tshuaj amorphous thiab nws cov tshuaj formula yog mSiO2.nH 2 o.Nws yog insoluble nyob rau hauv dej thiab cov kuab tshuaj, uas tsis yog-tshuaj lom, tasteless, chemically ruaj khov, thiab tsis hnov ​​​​mob nrog lwm yam tshaj li muaj zog alkalis thiab hydrofluoric acid.Ntau hom silica gel yog tsim txawv thiab tsim cov qauv microporous sib txawv.

Cov tshuaj muaj pes tsawg leeg thiab physics ntawm silica gel txiav txim siab tias nws muaj ntau yam khoom uas nyuaj los hloov nrog lwm cov ntaub ntawv zoo sib xws: siab adsorption kev ua tau zoo, zoo thermal stability, ruaj khov chemistry, thiab ruaj khov chemistry.High mechanical zog.Vim nws cov khoom siv tshuaj, nws yog siv rau hauv kev tsim khoom ntawm ntau yam khoom siv silicone xws li silicone seals, silicone seals thiab silicone kitchenwares.

Silica gel muab faib ua macroporous silica gel, chav kawm pore silica gel, hom B silica gel, thiab nplua pore silica gel raws li qhov loj ntawm pore txoj kab uas hla.Vim qhov sib txawv ntawm cov qauv pore, cov yam ntxwv adsorption muaj cov yam ntxwv tshwj xeeb.Coarse-pore silica gel muaj peev xwm adsorption ntau dua thaum cov txheeb ze av noo siab, thiab pore silica gel muaj peev xwm adsorption loj dua li coarse-pore silica gel thaum cov txheeb ze av qis.Hom B silica gel yog nruab nrab ntawm ntxhib thiab nplua pores, thiab tus nqi ntawm adsorption kuj yog nruab nrab ntawm ntxhib thiab nplua pores.Macroporous silica gel feem ntau yog siv los ua catalyst carrier, matting agent, tshuaj txhuam hniav thiab abrasive.

Cov khoom faib, cov yam ntxwv ntawm daim ntawv thov, thiab kev ceev faj rau silica gel, silicone roj hmab raw cov ntaub ntawv, thiab kua silicone roj hmab raw cov ntaub ntawv yog txawv.Daim ntawv thov thev naus laus zis thiab kev siv tseem ceeb ntawm silica gel raw khoom thiab kua roj hmab silicone yog txawv.Cov ntaub ntawv raw yog paub thiab koj tuaj yeem tshawb pom, tshawb xyuas thiab tshawb nrhiav ntau ntxiv.Kawm paub txog silica gel.

Silicon resin feem ntau yog siv los ua cov xim pleev xim (xws li cov kua roj vanish, enamel, xim xim, kua roj vanish, thiab lwm yam), impregnated nrog H-class motors thiab transformer coils, thiab impregnated nrog iav ntaub, iav ntaub lo lo ntxhuav, thiab asbestos ntaub.Peb tsim lub tshuab npog thiab cov khoom siv hluav taws xob.Thov tos rau qhov insulated winding.

Silicone resins yog cov cua sov thiab huab cua resistant anticorrosion coatings, hlau tiv thaiv coatings, waterproof thiab noo noo pov thawj coatings rau kev tsim kho tej yaam num, tso cov neeg sawv cev, adhesives, thiab theem nrab ua rau silicone plastics siv nyob rau hauv electronics, hluav taws xob thiab tiv thaiv.Yuav siv tau li.kev lag luam.Semiconductor ntim cov ntaub ntawv thiab cov ntaub ntawv insulating xws li cov khoom siv hluav taws xob.

Silicone resins yog kub thiab siab resistant anticorrosion coatings, hlau tiv thaiv coatings, waterproof thiab noo noo pov thawj coatings rau kev tsim kho tej yaam num, pwm tso tus neeg sawv cev, adhesives, thiab electronics, hluav taws xob khoom, thiab tiv thaiv kev lag luam.

Piv nrog rau lwm cov khoom siv silicone, silicone resins muaj ntau yam me me thiab kev lag luam me me.

Thaum cov ntshiab silicone resin los yog hloov silicone resin yog siv los ua cov khoom siv hauv paus, cov xim nyiaj uas muaj cov hmoov txhuas tuaj yeem siv rau ntawm qhov kub ntawm 400-450 ° C thiab txawm 600 ° C. Piv rau cov organic resins, silicone resins muaj huab cua zoo dua, thiab lub wavelength ntau ntawm lub hnub ci spectrum yog 300 nm lossis ntau dua, tab sis silicone resins nqus tsawg dua 280 nm.

Hydrolysis ntawm silicone resins feem ntau muaj ob los yog ntau dua monomers nrog sib txawv hydrolysis tus nqi thiab feem ntau yog siv los du tawm qhov sib txawv ntawm hydrolysis ntawm cov silanes sib txawv thiab kom ua tau zoo co-hydrolysis tej yam kev mob., Hydrolysis thiab cawv decomposition yog ua tib lub sijhawm.