Vim li cas thiaj thiaj li ua si ua kom zoo nkauj?
1. Vim li cas thiaj ua siab tawv?
Tej zaum yuav muaj kev puas tsuaj los ntawm kev nqus tau, kev noj lossis nqus los ntawm daim tawv nqaij. Tshwj xeeb yog cov nplaim taws, ua kom deb ntawm tshav kub, txim taws thiab qhib cov nplaim taws. Nws lub volatilized post yog kev ua kom muaj kev ua kom tawv nqaij, daim tawv nqaij, qog ua pa tawm thiab ua pa sab saud. Hnav cov hnab looj tes tsim nyog thiab kev nyab xeeb tsom iav thiab ib txwm siv hauv cov tshuaj fume hood.
2. Dab tsi yog cov kev mob tshwm sim ntawm kev ua si?
①eye tiv tauj: Silane tuaj yeem ua rau lub qhov muag. Silane Decomposeition tsim kho amorphous silica. Qhov muag nrog amorphous silica hais yuav ua rau voos.
Inhalation: 1. Inhalation ntawm kev kub siab ntawm kev ua si uas muaj peev xwm ua rau mob taub hau, xeev siab, kiv taub hau thiab ua pa rau sab saud.
② Ua Phob Ntxhi yuav ua xeb lub cev ua pa thiab cov yeeb yaj kiab. Ntau nqus tau ntawm kev ua si uas ua rau mob ntsws thiab mob raum vim muaj cov Crystalline silica.
③ Raug rau cov roj ntau-siab ntxiv kuj tuaj yeem ua rau hluav taws hlawv vim yog qhov sib xyaw ua ke.
Kev noj haus: kev noj haus tsis zoo yuav tsis zoo li yog txoj hauv kev ntawm kev sib tw.
Cov tawv nqaij hu: silane yog khaus rau daim tawv nqaij. Silane Decomposeition tsim kho amorphous silica. Daim tawv nqaij sib cuag nrog amorphous silica hais yuav ua rau voos.
3. Dab tsi yog cov lo lo lo lus uas siv rau?
A) Coupling tus neeg sawv cev:
Ingrofunctional alkoxys yog siv rau ob peb organic polymers thiab inorganic cov ntaub ntawv, ib qho kev tawm tsam ntawm daim ntawv thov no yog qhov ua rau lub zog. Piv txwv li: khob fibers thiab cov pob zeb hauv av muab sib xyaw ua ke rau hauv cov yas thiab rub cov ntaub qhwv. Lawv siv nrog thermoset thiab thermoplastic lub tshuab. Cov pob zeb hauv cov pob zeb xws li: Silica, tollastonite, av nplaum thiab lwm yam khoom siv yog cov kab ke ua ntej los sis ntxiv rau cov txheej txheem sib xyaw.
Los ntawm kev siv Ingofunctional silanes ntawm hydrophilic, tsis-organic reactive fitters, cov ntxhia surfaces ua reaserive thiab lipophilic. Cov ntawv thov rau fiberglass muaj xws li lub cev tsheb, cov nkoj da dej, cov ntawv luam tawm satellite, yas kav dej, thiab lwm yam.
Cov ntxhia pob zeb suav cov polypropylene, dawb carbon fouring Resins thiab cov xaim-cov roj hmab, tshuab ua si, tshuab ua si.
B) adhesion promoter
Qhov chaw nyob ruaj khov yog cov nplaum txhawb nqa thaum siv cov khoom ua ntej los ua cov duab puab thiab cov khoom lag luam, cov kua nplaum, cov nplaum thiab cov tshuaj pleev. Thaum siv raws li kev sib xyaw ua ke ntxiv, cov kab ke yuav tsum tau tsiv mus rau lub interface ntawm daim ntawv cog lus thiab cov ntaub ntawv raug kho kom muaj txiaj ntsig. Thaum siv raws li qhov primer, cov neeg ua kom sib luag yog siv rau cov ntaub ntawv inorganic ua ntej cov khoom raug khi.
Hauv qhov no: txoj kev ua si yog nyob rau hauv ib txoj hauj lwm zoo los ua adhesion txuas ntxiv, txawm tias muaj cov interhatal sib txuas, cov nplaum, cov khoom sib dhos tuaj yeem ua kom cov nyiaj sib txuas.
C) sulfur dej, dispersant
Siliclophobic cov pab pawg uas muaj cov tswv yim hauv Hydrophibic nyob rau hauv kev tsim kho hydrophobic nyob rau hauv kev tsim kho hydrophobic hauv kev tsim kho hydrophobic hauv kev tsim kho, choj thiab decking apps. Lawv kuj tseem siv hauv hydrophobic inorganic hmoov, ua rau lawv dawb-ntws thiab yooj yim rau disperse hauv cov organic polymers thiab kua.
D) cross-txuas tus neeg sawv cev
Ingrofunctional alkoxysilitilles tuaj yeem hnov mob nrog cov organic polymers rau kev sib xyaw tri-alkoxyalkyl pab pawg mus rau hauv lub pob txha polymer. Tus hniav yeeb tuaj yeem tshwm sim los ntawm ya raws kom hla cov kab si uas ua kom muaj qhov ruaj khov rau cov qauv. Cov txheej txheem no tuaj yeem siv los tso cov huab cua dub, polyethylene, xws li actrylics, xws li cov xim organic, kom impart chetins, cov xim dej ruaj, cov xim pleev xim, thiab cov nplaum.
Psi-520 Cij Choj Couplling Tus neeg sawv cev yog siv rau cov organic dispersion kev kho mob ntawm Mh / AH, Kaolin, thiab yog kuj haum rau halogen-dawb cable. Rau kev kho cov khoom hmoov inorganic hmoov, nws hydrophobicity nce mus txog 98%, thiab cov dej sib cuag lub kaum sab xis ntawm cov npoo organic inorganic hmoov yog ≥110º. Nws muaj peev xwm kuj muaj hmoov av inorganic hauv cov organic xws li cob, yas thiab roj hmab. Nta: Txhim kho cov tub lim dej ua haujlwm; Nce cov kev txwv oxygen investion tus nqi (Loi); Nce hydrophobicity ntawm cov muab tub lim, thiab tseem txhim kho hluav taws xob cov khoom (dielectric constant tan, tom qab ntsib dej; Nce tus nqi muab tub lim, thiab tib lub sijhawm muaj lub zog zoo tshaj plaws lub zog thiab elongation thaum tawg; Txhim kho lub tshuab hluav taws ua kom tsis taus thiab kub nkag; txhim kho kev tshuaj lom neeg corrosion tsis kam; Kev cuam tshuam siab kuj; Txhim kho cov txheej txheem kev ruaj khov thiab cov khoom lag luam ntawm extrusion sib xyaw.
4. Dab tsi yog qhov kev nyab xeeb nyab xeeb rau cov pa dej roj?
Tsis txhob cia cov kab ke ntsuas kub kom poob qis dua -170 ° F (-112 ° C) lossis huab cua yuav raug kos rau hauv kev sib xyaw ua ke.
Tsis txhob cia cov khoom lag luam kom nkag mus rau hauv kev sib cuag nrog cov hlau hnyav lossis halogens, saleane reacts ua nruj nrog lawv. Lub kaw lus yuav tsum ua tib zoo ntxuav kom tiv thaiv cov seem ntawm cov chaw nyob hauv av, halogens lossis lwm cov chlorinated hydrocarbons muaj nyob hauv.
Tag nrho cov kab ke rau kev ntsuas xau nrog ob mus rau peb zaug ua haujlwm siab, nyiam dua helium. Tsis tas li ntawd, kev saib xyuas kom pom kev txi kom tau yooj yim yuav tsum tau tsim thiab ua tiav.
Tom qab cov kab ke tau tshawb xyuas rau cov dej xau lossis qhib rau lwm cov laj thawj, huab cua hauv lub kaw lus yuav tsum tau ntxuav los ntawm nqus dej lossis kua roj av huv. Ua ntej qhib txhua qhov system uas muaj cov suab seev lub kaw lus yuav tsum tau ua kom tiav nrog cov roj inert. Yog tias ib feem ntawm cov kab ke muaj qhov chaw tuag lossis qhov chaw uas cov dej qab zib yuav nyob twj ywm, nws yuav tsum tau nqus thiab tawm tsam.
Silane yuav tsum tau muab tso rau ib qho chaw muaj siab rau nws pov tseg, nyiam dua li hlawv. Txawm hais tias qhov qis ntawm cov khoom seem yog qhov txaus ntshai thiab yuav tsum tsis txhob raug rau huab cua. Silanes kuj tseem tuaj yeem tso zis tom qab tau diluted nrog cov roj inert ua rau lawv tsis yog-taws.
Cov roj av yuav tsum muab khaws cia thiab siv raws li cov cai ntawm Asmeskas compressed roj ua ke. Hauv zos yuav muaj cov kev cai tshwj xeeb rau kev cia khoom thiab siv cov pa roj.
5. Dab tsi yog qhov txawv ntawm silicone thiab silane?
Cov ntaub ntawv Silicon feem ntau ua rau cov ntawv thov cov khoom siv ntau dua cov organic-raws li cov kev ua haujlwm ntawm kev ua haujlwm hnyav hauv kev ua haujlwm hnyav hauv kev ua haujlwm hnyav. Lawv tau siv los ua cov tshuaj sib ntxiv los muab cov haujlwm saum npoo av, cov dej tsis tau zoo, ua kom cov khoom siv ua kom cov khoom siv ua ke uas ua rau muaj kev siv ntau yam uas ua rau peb lub neej txhua hnub.
