Silicone Sealant rau sab nrauv cov pob qij txha: kev yam ntxwv thiab daim ntawv thov

tshwj xeeb silicone muaj pes tsawg leeg feem ntau yog siv los xyuas kom meej ib tug nruj kev foob nqaws thiab pob qij txha. Ib tug feature tshwj xeeb yog nws muaj peev xwm nyob rau hauv txawv tej yam kev mob rau muaj nws elasticity. Tsaug rau no compound tsis tshwm puas txawm yog hais tias tus tsis ncaj ncees ntsiab. Qhov no yog ib qho ntawm qhov zoo muaj los ntawm silicone ob leeg sealant. Tom ntej no, ib tug los ze zog saib nyob rau hauv nws ua tau zoo. Daim ntawv no kuj yuav qhia txog cov uas muaj lub muaj pes tsawg leeg thiab daim ntawv thov ntawm technology.

Txheej txheem cej luam

Silicone sealant specifications uas yuav tsum tau los sib tham li hauv qab no, sawv cev rau vyazkotekuchy muaj pes tsawg leeg. Nws cov hauv paus - tshwj xeeb hom rubbers muaj peev xwm ntawm solidifying ntawm chav tsev kub. Universal silicone sealant siv los sau cov pob qij txha thiab kis ntoo. Nws muab kev tiv thaiv los ntawm qhov tsis zoo feem ntawm ntau yam. Tsis tas li ntawd pob tshab silicone sealant yog siv los txhim kho cov ntsiab, gluing lawv ua ke. Thawj u pib siv nyob rau hauv lub sixties ntawm lub xyoo pua 20th.

Silicone sealant: kev specifications

Muaj pes tsawg leeg muaj ntau yam ntshaw zog. Silicone sealant, uas txhais tau cov yam ntxwv thiab cov uas nws cov ntaub ntawv, muaj:

• Dej kuj.
• Elasticity.
• Kuj mus ultraviolet raug.
• Rau yav tom ntej adhesion rau feem ntau cov ntaub ntawv.
• Resistant rau cov teebmeem ntawm corrosive xov xwm.
• Durability.
• Heev resistant mus tseem ceeb kub variations (-60 rau +300 degrees).

kev faib

Silicone Sealant rau sab nrauv cov pob qij txha yuav ua tau single- los yog ob-tivthaiv. Tus thawj yog cov kev cai uas formulations nyob rau hauv cov hlab. Ib-tivthaiv sealants yuav muaj nyob rau hauv khw muag khoom noj thiab "Foyle packets" (tshwj xeeb hlab ntawm zaj duab xis), raws li zoo raws li nyob rau hauv ib tug loj ntim. Hardening muaj pes tsawg leeg tshwm sim nyob rau hauv tus ntawm huab cua thiab ya raws. Ib-tivthaiv sealants pom tau hais tias yuav tsum tau lub feem ntau kim heev cheeb tsam ntawm qhov kev siv ntawm silicone nyob rau hauv lub ntiaj teb no. Tag nrho cov hardening ntawm lub chaw tsim tshuaj paus lub compositions mus txog lub substrate txheej yog 2-12 hli. Ib txhia manufacturers hais 15 hli. Ob-tivthaiv sealants yuav solidify nyob rau hauv tej lub ntim. Tej compositions, piv txwv li, xws li "Viksint", "SS-1", "Elastosil" "Pentelast". Cov sealants yog tsis tshua muaj heev thiab feem ntau yog siv nyob rau hauv muaj daim ntaub ntawv.

Ib-tivthaiv compositions

Cov sealants yog ob hom: cov acid thiab nruab nrab. Cov yav tas los muaj ib tug heev muaj zog tsis hnov tsw ntawm vinegar. Lawv nqi yog tsawg tshaj li qhov nruab nrab tebchaw. Tej adhesives yuav ua xeb thaum ua ntawv thov rau MAAs-ntaub ntawv, co, thiab lwm tus neeg. Feem ntau ntawm cov substandard formulations ua nws acidic. Qhov no yog vim pheej yig feedstock. Txawm li cas los, nyob rau hauv ntau lub sijhawm zoo tshaj plaws kev xaiv kom daws tau qhov teeb meem no yog cia li pheej yig, tab sis high-zoo silicone sealant acidic. polycondensation mechanism nram qab no muaj pes tsawg leeg: hydroxy haujlwm polydimethylsiloxane pawg hnov mob nrog dej nyob rau hauv lub xub ntiag ntawm ib tug crosslinking tua neeg sawv cev (piv txwv li, nrog metiltriatsetoksisilanom), nrog rau tshem tawm ntawm acetic rau-koj thiab txoj kev ua ib tug network qauv. Nruab nrab tebchaw muaj tsawg tsw thiab yog kim kim.

lub sij hawm

Silicone Sealant rau sab nrauv cov pob qij txha tej zaum yuav ib lub tsev, txoj kev los yog tshwj xeeb. Txawm li cas los, qhov no faib yog haum zwj ceeb. Raws li txoj cai, nyob rau hauv lub ntim qhia lub hom phiaj tseem ceeb ntawm cov muaj pes tsawg leeg. Piv txwv li:

• "Tsheb".
• "Universal".
• "Thoob dej yug ntses". Qhov no muaj pes tsawg leeg yog siv rau Terraria, taig thiab lwm yam.
• "Huv roj hmab Sealant". Nws yog siv nyob rau hauv chav dej, nqais, lub hoob nab.
• "Tsis tshua muaj modulus." Tej compositions yog siv los sau interpanel pob qij txha. Lawv khaws cia txawv degrees ntawm deformation.
• "Insulating". Xws li ib tug muaj pes tsawg leeg yog siv nrog hluav taws xob engineering.

Yog silicone "Thaum tshav kub kub-resistant" los yog "high-kub" sealants. Lawv tus thawj xibfwb muaj yog dej iav (sodium silicate).

Liaj teb ntawm daim ntawv thov

Silicone sealant rau lwm vuam yog siv rau cov kev kho mob ntawm:

• Qhov chaw abutment yam ntxwv hais.
• Puag ncig ntawm cov lus qhib.
• Hais raug rau thaum tshav kub kub.

Muaj ntau compositions siv rau kev sib khi pob qij txha thiab da dej phab ntsa, gluing tsom iav, kev kho mob ntawm lub tebchaw ntawm dej thiab sewerage tshuab, abutting feem HUV khoom.

substandard sib tov

Tej compositions yog muaj nyob rau kev ua lag luam niaj hnub no. Ntawm cov hoob kawm, kev ua txij nkawm yuav ua tau thiab manufacturers ntawm zoo khoom. Tab sis ntawm cov tag nrho lawm, nws qhia yog me me. Manufacturers tsawg-zoo khoom txo tus nqi ntawm cov khoom, diluting lub feedstock yog tej organic compound. Tej zaum lawv yuav piv txwv li ua tau ib tug roj los yog kerosene. Nyob rau tib lub sij hawm, lub ntim yuav tsum sau ntawv "100% silicone". Thaum dilution thiab ib tug txo kev faib ua feem ntawm cov feem ntau feem ua tau zoo zog ntawm cov khoom raug txo ho. Nws deteriorates lub elasticity, neeg kho tshuab zog, kuj kub extremes, dej, ultraviolet. Tom qab ua ntawv thov mus rau lub shrinkage yuav tshwm sim thaum lub sij hawm. Tus heev muaj pes tsawg leeg yuav tig daj los yog tsaus ntuj, poob daim ntawv. Tee thiab durability ntawm lub sealing. Nyob rau hauv tej rooj plaub, muaj pes tsawg leeg tsis tawv. Nyob rau hauv cov ntaub ntawv no, tom qab tej lub sij hawm ntawm sealant pib "smudge". Qhov no tej khoom vaj tse yog suav tias yog lub cai rau iav compositions, raws li lub ntsiab tivthaiv yog lossi hloov nws zoo nyob rau hauv tus ncej. Tab sis qhov no tshwm sim yog lig tsis tsim nyog rau lwm yam sealants.

shortcomings

Muaj coob tus ntseeg hais tias cov silicone sealant mus rau lub txheej nqaws - ib tug indispensable ib feem ntawm, thiab nws cov possibilities yog unlimited. Txawm li cas los, qhov no yog tsis muaj tseeb. Muaj ntau ntau tsis zoo muaj sealant. Piv txwv li, feem ntau cov tebchaw yog tsis npaj rau daim ntawv thov mus noo chaw. Zoo sealants (undiluted loj nyiaj ntawm cov organic tebchaw) tsis tau dyed pa zas xim. Tsis zoo heev adhesion muaj cai nyob rau hauv muaj pes tsawg leeg thaum ua ntawv thov rau Teflon, polycarbonate, PVC, polypropylene, polyethylene. Qhov teeb meem no feem ntau yog daws tau los ntawm kev yuav khoom kim kim kev muaj pes tsawg leeg los yog los ntawm ua ntawv thov "sublayers" mus pab tau txoj adhesion ua ntej yuav siv sealant.

Cov lus qhia rau kev siv

Raws li kev xyaum qhia tau hais tias, yog tsis muaj dab tsi daunting nyob rau hauv tus txheej txheem uas tso npe thov cov sealant ua tsis tau. Rau yooj yim siv ntawm muaj pes tsawg leeg yuav tsum tau yuav ib tug tshwj xeeb rab phom. Nws yog tso rau hauv ib lub raj sealant. Lub hau ntawm lub qhov ntswg yog txiav nrog ib tug riam. Sab saum toj yog screwed bundled tshwj xeeb dispenser. Nws kuj yuav tsum tau txiav nyob rau hauv ib tug tej yam qhov chaw, muaj ib lub sij hawm los tswj lub mov nqi ntawm cov tshuaj yeeb dej caw. Ua ntej lub sealant yog thov, tus nto yog ntxuav thiab qhuav. Yuav luag tag nrho cov ntawm cov tebchaw muaj tsis muaj adhesion rau ntub av. Nyob rau hauv lwm yam lus, thov mus rau lub ntub nto inefficiently. Yog hais tias tsim nyog, foob pob qij txha nyob rau hauv ntub tej yam kev mob, siv tshwj xeeb huv lug. Lawv yuav tsis poob nws cov khoom txawm nyob rau hauv xws tej yam kev mob. Nyob tom ntej no mus cov hniav chaw yuav tsum tau muaj kev tiv thaiv nrog ib tug masking daim kab xev. Thaum ib rab yaj phom piston yuav tsum ua tib zoo nias uniformly faib lub sib tov dua tus txha. Nyob ntawm tus neeg muaj pes tsawg leeg raug muab tshem tawm nrog ib tug phuam ntaub. Tes tsev ntxhua khaub ncaws yog siv tib yam tshuaj xub npum. Tshem tawm tshaj sealant tsim nyog mus nqa tawm ua ntej nws hardens. Txwv tsis pub nws yog tsim nyog los siv ib cov neeg kho tshuab cov qauv ntawm cov tu.

Silicone Sealant "Caij"

Qhov no muaj pes tsawg leeg yog npaj los tiv thaiv tiv thaiv drafts thiab ya raws. Cov pob qij txha thiab nqaws kho nrog no sealant, saib kom zoo zoo txaus. Dag lub zog thiab elasticity ntawm muaj pes tsawg leeg yog fwm rau ntau xyoo. Cov chaw tsim tshuaj paus neeg pab leg ntaubntawv hais tias cov durability ntawm lub leeg - 10 xyoo. Cov nyob tus yeees yog innocuous thiab muaj peev xwm ntawm ceev lawv lub zog ntawm kev khiav hauj lwm kub ntawm -40 mus +100 degrees. Tag nrho cov hardening tshwm sim nyob rau 2-4 hnub. Muaj pes tsawg leeg muaj ib tug saj zawg zog thiab check foob. Cov khoom no yog tsis kos. Nyob rau hauv no kev twb kev txuas, los nthuav lub Scope ntawm daim ntawv thov, cov muaj pes tsawg leeg yog ua dawb thiab pob tshab. Tus thawj pom zoo rau kev sib khi qhov rais thiab dawb da. Rau sau cov pob qij txha nyob rau hauv kav dej khoom ntawm ib tug txawv xim nws yog ntau tsim nyog siv tsis muaj kob muaj pes tsawg leeg. Rau cov tsevneeg ntawm cov miv, me me-scale xws li cov khoom uas hais tias tej zaum yuav tuaj mus rau hauv kev sib cuag nrog dej, raws li pom zoo los ntawm lub pob tshab silicone sealant. Nyob rau hauv lub tam sim no configuration ntawm lub raj, dispensing nozzle thiab xa tus yuam sij rau yig thiab niaj hnub extrusion. Sealant "Caij" twb tau muab siv ntse tsis tau tsuas yog nyob rau hauv tsev nyob tej yam kev mob. Nrog kev pab los ntawm cov pob qij txha yog nqa tawm nyob rau hauv lub ua basins, conservatories, greenhouses. Muaj pes tsawg leeg siv nyob rau hauv lub kho thiab vaj cuab yeej ntawm ib qho nyuaj polyvinyl tshuaj dawb thiab Anodized txhuas.