Cov nplaum / sealant / Kev siv cov nplaim taws retardants
Kev tsim kho teb:Kev teeb tsa cov qhov rooj hluav taws, cov phab ntsa hluav taws, cov laug cam hluav taws
Kev siv hluav taws xob thiab hluav taws xob:Cov laug cam hluav taws xob, cov khoom siv hluav taws xob
Kev lag luam tsheb:Cov rooj zaum, cov dashboards, cov qhov rooj vaj huam sib luag
Kev lag luam aerospace:Cov cuab yeej siv dav hlau, cov qauv spacecraft
Cov khoom siv hauv tsev:Rooj tog, pem teb, ntawv phab ntsa
Daim Kab Xev Hloov Hluav Taws Kub:Zoo heev rau cov hlau, ua npuas dej thiab cov yas xws li polyethylene
Kev Ua Haujlwm ntawm Cov Tshuaj Tiv Thaiv Hluav Taws
Cov tshuaj tiv thaiv hluav taws kub tiv thaiv lossis ncua qhov kev sib kis ntawm hluav taws los ntawm kev tswj cov tshuaj lom neeg hauv nplaim taws lossis los ntawm kev tsim cov txheej tiv thaiv rau ntawm qhov chaw ntawm cov khoom siv.
Lawv yuav raug sib xyaw nrog cov khoom siv hauv paus (cov tshuaj tiv thaiv hluav taws xob ntxiv) lossis sib txuas nrog nws (cov tshuaj tiv thaiv hluav taws xob). Cov tshuaj tiv thaiv hluav taws xob feem ntau yog cov khoom ntxiv thaum cov organic sib xyaw tuaj yeem ua rau muaj kev cuam tshuam lossis ntxiv rau.
Tsim Cov Nplaum Tiv Thaiv Hluav Taws
Hluav taws kub muaj plaub theem:
Kev pib
Kev loj hlob
Lub Xeev Ruaj Khoov, thiab
Kev lwj
Kev Sib Piv ntawm Qhov Kub Degradation ntawm Cov Nplaum Thermoset Ib Txwm Muaj
Nrog Cov Neeg Uas Tau Txais Kev Pab Hauv Ntau Theem ntawm Hluav Taws
Txhua lub xeev muaj qhov kub thiab txias sib xws raws li pom hauv Daim Duab. Thaum tsim cov nplaum uas tiv taus hluav taws, cov neeg tsim qauv yuav tsum siv zog los ua kom muaj kev tiv taus kub thiab txias rau theem hluav taws kom raug rau daim ntawv thov:
● Piv txwv li, hauv kev tsim khoom siv hluav taws xob, cov nplaum yuav tsum tiv thaiv txhua qhov kev nyiam ntawm cov khoom siv hluav taws xob kom kub hnyiab - lossis pib - yog tias muaj qhov kub nce siab los ntawm qhov txhaum.
● Rau kev sib txuas cov vuas lossis cov vaj huam sib luag, cov nplaum yuav tsum tiv taus kev sib cais thaum lub sijhawm loj hlob thiab lub xeev ruaj khov, txawm tias thaum kov ncaj qha rau nplaim taws.
● Lawv kuj yuav tsum txo cov pa phem thiab cov pa luam yeeb uas tawm los. Cov qauv uas nqa khoom hnyav yuav raug hluav taws kub plaub theem.
Txwv Kev Sib Tw Hluav Taws Xob
Yuav kom txwv tsis pub lub voj voog hlawv, ib lossis ntau yam txheej txheem uas ua rau muaj hluav taws yuav tsum raug tshem tawm los ntawm ib qho twg:
● Tshem tawm cov roj uas yaj tau, xws li los ntawm kev txias
● Kev tsim cov khoom thaiv cua sov, xws li los ntawm kev hlawv, yog li tshem tawm roj los ntawm kev txo cov cua sov hloov pauv, lossis
● Tua cov tshuaj tiv thaiv hauv nplaim taws, xws li ntxiv cov tshuaj tua kab mob uas tsim nyog
Cov tshuaj ntxiv uas tiv taus hluav taws ua qhov no los ntawm kev ua haujlwm tshuaj lom neeg thiab/lossis lub cev hauv theem condensed (khoom) lossis hauv theem roj los ntawm kev muab ib qho ntawm cov haujlwm hauv qab no:
●Cov char formers:Feem ntau yog cov tshuaj phosphorus, uas tshem tawm cov roj carbon thiab muab ib txheej rwb thaiv tsev tiv thaiv qhov kub ntawm hluav taws. Muaj ob txoj hauv kev los tsim cov char:
Kev hloov pauv ntawm cov tshuaj lom neeg uas cuam tshuam nrog kev lwj mus rau qhov kev hloov pauv uas tsim cov pa roj carbon es tsis yog CO lossis CO2 thiab
Kev tsim ntawm ib txheej saum npoo ntawm cov hluav taws xob tiv thaiv
●Cov khoom nqus cua sov:Feem ntau yog cov hlau hydrates, xws li txhuas trihydrate lossis magnesium hydroxide, uas tshem tawm cua sov los ntawm kev ua kom dej tawm ntawm cov qauv ntawm cov nplaim taws.
●Cov tshuaj tua hluav taws:Feem ntau yog cov kab ke halogen uas siv bromine lossis chlorine uas cuam tshuam rau cov tshuaj tiv thaiv hauv nplaim taws.
● Cov neeg sib koom tes:Feem ntau yog cov tshuaj antimony, uas ua kom kev ua haujlwm ntawm cov tshuaj tua hluav taws zoo dua.
Qhov Tseem Ceeb ntawm Cov Tshuaj Tiv Thaiv Hluav Taws hauv Kev Tiv Thaiv Hluav Taws
Cov tshuaj tiv thaiv hluav taws yog ib feem tseem ceeb ntawm kev tiv thaiv hluav taws vim tias lawv tsis yog tsuas yog txo qhov kev pheej hmoo ntawm hluav taws pib xwb, tab sis kuj txo qhov kev pheej hmoo ntawm nws txoj kev nthuav dav. Qhov no ua rau lub sijhawm khiav tawm ntev dua thiab, yog li, tiv thaiv tib neeg, khoom vaj khoom tsev, thiab ib puag ncig.
Muaj ntau txoj hauv kev los txheeb xyuas cov nplaum ua cov tshuaj tiv thaiv hluav taws. Cia peb nkag siab txog kev faib tawm ntawm cov tshuaj tiv thaiv hluav taws kom meej.
Qhov xav tau cov nplaum uas tiv taus hluav taws kub zuj zus tuaj thiab lawv siv tau nthuav dav mus rau ntau qhov kev lag luam sib txawv xws li kev tsav dav hlau, kev tsim kho, khoom siv hluav taws xob thiab kev thauj mus los rau pej xeem (tshwj xeeb yog tsheb ciav hlau).
1: Yog li, ib qho ntawm cov qauv tseem ceeb yog kom tsis txhob muaj hluav taws / tsis kub hnyiab lossis, zoo dua, tiv thaiv hluav taws - tiv thaiv hluav taws kom zoo.
2: Cov nplaum yuav tsum tsis txhob muab pa luam yeeb ntau dhau los yog lom.
3: Cov nplaum yuav tsum tswj nws cov qauv kom ruaj khov thaum kub siab (muaj qhov kub thiab txias zoo li sai tau).
4: Cov khoom siv nplaum uas lwj lawm yuav tsum tsis txhob muaj cov khoom lom.
Zoo li nws yog ib qho nyuaj heev uas yuav nrhiav tau ib yam nplaum uas phim cov kev xav tau no - thiab nyob rau theem no, qhov viscosity, xim, qhov ceev ntawm kev kho thiab txoj kev kho uas nyiam, qhov chaw sau qhov sib txawv, kev ua tau zoo ntawm lub zog, kev ua kom sov, thiab kev ntim khoom tseem tsis tau xav txog. Tab sis cov kws tshuaj lom neeg tsim khoom nyiam qhov kev sib tw zoo yog li NQA NWS MUS!
Cov cai tswjfwm ib puag ncig feem ntau yog kev lag luam thiab cheeb tsam tshwj xeeb
Ib pawg loj ntawm cov tshuaj tua hluav taws uas tau kawm tau pom tias muaj cov qauv zoo rau ib puag ncig thiab kev noj qab haus huv. Cov no yog:
● Ammonium polyphosphate
● Aluminium diethylphosphinate
● Aluminium hydroxide
● Magnesium hydroxide
● Melamine polyphosphate
● Dihydroxaphosphaphenanthrene
● Zinc stannate
● Zinc hydroxstannate
Kev tiv thaiv hluav taws
Cov nplaum tuaj yeem tsim tau kom phim qhov ntsuas ntawm kev tiv thaiv hluav taws - ntawm no yog cov ntsiab lus ntawm Underwriters Laboratory Testing classifications. Raws li cov chaw tsim khoom nplaum, peb pom cov lus thov feem ntau rau UL94 V-0 thiab qee zaum rau HB.
UL94
● HB: hlawv qeeb qeeb rau ntawm cov qauv kab rov tav. Kev hlawv qeeb qeeb <76mm/feeb rau qhov tuab <3mm lossis kev hlawv nres ua ntej 100mm
● V-2: (ntsug) kev kub hnyiab nres hauv <30 vib nas this thiab tej dej ntws yuav kub hnyiab
● V-1: (ntsug) kev kub hnyiab nres hauv <30 vib nas this, thiab tso cai rau cov dej ntws (tab sis yuav tsumtsis yogkub hnyiab)
● V-0 (ntsug) hlawv nres hauv <10 vib nas this, thiab tso cai rau cov dej ntws (tab sis yuav tsumtsis yogkub hnyiab)
● Qhov kub hnyiab 5VB (vertical plaque specimen) yuav tsum nres hauv <60 vib nas this, tsis muaj dej ntws; tej zaum qhov qauv yuav muaj qhov.
● 5VA raws li saum toj no tab sis tsis pub tsim ib lub qhov.
Ob qhov kev faib tawm tom kawg yuav hais txog lub vaj huam sib luag sib txuas es tsis yog cov qauv ntawm cov nplaum.
Kev kuaj mob yog yooj yim heev thiab tsis tas yuav siv cov khoom siv nyuaj, ntawm no yog qhov kev teeb tsa kev kuaj mob yooj yim:
Nws yuav nyuaj heev rau ua qhov kev sim no rau qee cov nplaum xwb. Tshwj xeeb tshaj yog rau cov nplaum uas yuav tsis kho kom zoo sab nraum qhov sib koom ua ke kaw. Hauv qhov no, koj tsuas tuaj yeem sim ntawm cov khoom sib txuas. Txawm li cas los xij, cov kua nplaum epoxy thiab cov nplaum UV tuaj yeem kho tau raws li cov qauv kuaj khov kho. Tom qab ntawd, ntxig cov qauv kuaj rau hauv lub puab tsaig ntawm lub clamp sawv ntsug. Khaws lub thoob xuab zeb ze, thiab peb xav kom ua qhov no thaum rho tawm lossis hauv lub txee pa taws. Tsis txhob ua rau muaj cov tswb ceeb toom pa luam yeeb! Tshwj xeeb tshaj yog cov uas txuas ncaj qha rau cov kev pabcuam thaum muaj xwm txheej ceev. Catch cov qauv rau ntawm hluav taws thiab teem sijhawm ntev npaum li cas rau nplaim taws kom tua. Tshawb xyuas seb puas muaj cov dej ntws hauv qab (vam tias, koj muaj lub tais pov tseg hauv qhov chaw; txwv tsis pub, bye-bye zoo worktop).
Cov kws tshuaj nplaum sib xyaw ntau yam khoom ntxiv los ua cov nplaum uas tiv taus hluav taws - thiab qee zaum txawm tias tua hluav taws (txawm hais tias qhov no nyuaj dua los ua tiav niaj hnub no nrog ntau lub tuam txhab tsim khoom tam sim no thov cov qauv tsis muaj halogen).
Cov khoom ntxiv rau cov nplaum uas tiv taus hluav taws suav nrog
● Cov tshuaj organic uas ua rau muaj hluav taws uas pab txo qhov kub thiab pa luam yeeb thiab tiv thaiv cov khoom hauv qab kom tsis txhob kub hnyiab ntxiv.
● Cov khoom nqus cua sov, cov no yog cov hlau hydrates ib txwm muaj uas pab muab cov khoom zoo rau cov nplaum (feem ntau, cov nplaum tiv taus hluav taws raug xaiv rau cov ntawv thov sib txuas cua sov uas xav tau qhov siab tshaj plaws ntawm kev ua kom sov).
Nws yog ib qho kev sib npaug zoo vim tias cov tshuaj ntxiv no yuav ua rau muaj kev cuam tshuam nrog lwm cov khoom nplaum xws li lub zog, rheology, kho sai, yooj ywm thiab lwm yam.
Puas muaj qhov sib txawv ntawm cov nplaum uas tiv taus hluav taws thiab cov nplaum uas tiv taus hluav taws?
Yog! Muaj. Ob lo lus no tau raug hais txog hauv tsab xov xwm, tab sis nws yog qhov zoo tshaj plaws los teeb tsa zaj dab neeg kom ncaj.
Cov nplaum uas tiv taus hluav taws
cov no feem ntau yog cov khoom xws li cov cement nplaum thiab cov sealants inorganic. Lawv tsis kub hnyiab thiab lawv tiv taus qhov kub thiab txias heev. Cov ntawv thov rau cov khoom no suav nrog, cov cub tawg, qhov cub thiab lwm yam. Lawv tsis ua dab tsi los tiv thaiv kev sib dhos kub hnyiab. Tab sis lawv ua haujlwm zoo ntawm kev tuav tag nrho cov khoom kub hnyiab ua ke.
Cov nplaum uas tiv taus hluav taws
Cov no pab tua cov nplaim taws thiab qeeb qhov kev sib kis ntawm hluav taws.
Ntau lub lag luam nrhiav cov hom nplaum no
● Khoom Siv Hluav Taws Xob- rau kev siv rau kev cog thiab ntim cov khoom siv hluav taws xob, kev sib txuas cov cua sov, cov laug cam thiab lwm yam. Kev luv luv ntawm hluav taws xob tuaj yeem ua rau muaj hluav taws kub. Tab sis PCBs muaj cov tshuaj tua hluav taws - nws feem ntau tseem ceeb uas cov nplaum kuj muaj cov yam ntxwv no.
● Kev Tsim Kho– cov ntaub thaiv thiab pem teb (tshwj xeeb tshaj yog nyob rau hauv cov chaw pej xeem) feem ntau yuav tsum tsis txhob kub hnyiab thiab lo nrog cov nplaum tiv taus hluav taws.
● Kev thauj mus los rau pej xeem- cov tsheb ciav hlau, sab hauv tsheb npav, trams thiab lwm yam. Cov ntawv thov rau cov nplaum tiv thaiv hluav taws suav nrog kev sib txuas cov vaj huam sib luag sib xyaw, pem teb, thiab lwm yam khoom siv thiab cov khoom siv. Tsis yog cov nplaum tsuas pab tiv thaiv kev kis hluav taws xwb. Tab sis lawv muab kev sib koom ua ke zoo nkauj yam tsis tas yuav siv cov khoom siv kho tshuab uas tsis zoo nkauj (thiab tsis zoo nkauj).
● Dav hlau- raws li tau hais ua ntej lawm, cov khoom siv sab hauv lub tsev cabin raug cai nruj heev. Lawv yuav tsum tsis txhob raug hluav taws thiab tsis txhob ua rau lub tsev cabin puv nrog pa luam yeeb dub thaum muaj hluav taws.
Cov Qauv thiab Cov Txheej Txheem Ntsuas rau Cov Khoom Hluav Taws Kub
Cov qauv ntsig txog kev sim hluav taws yog tsom rau kev txiav txim siab qhov ua tau zoo ntawm cov khoom siv hais txog nplaim taws, pa luam yeeb, thiab tshuaj lom (FST). Muaj ntau qhov kev sim tau siv dav los txiav txim siab qhov tsis kam ntawm cov khoom siv rau cov xwm txheej no.
Cov Kev Xeem Xaiv Rau Cov Khoom Uas Tiv Thaiv Hluav Taws
| Kev Tiv Thaiv Kev Kub Hnyiab | |
| ASTM D635 | "Tus Nqi ntawm Kev Hlawv Cov Yas" |
| ASTM E162 | "Kev Ua Hluav Taws Xob ntawm Cov Khoom Siv Yas" |
| UL 94 | "Kev Ua Hluav Taws Xob ntawm Cov Khoom Siv Yas" |
| ISO 5657 | "Kev Kub Hnyiab ntawm Cov Khoom Siv Hauv Tsev" |
| BS 6853 | "Kev nthuav tawm nplaim taws" |
| DAR 25.853 | "Tus Qauv Kev Tsim Nyog Caij Nkoj - Sab Hauv Chav" |
| NF T 51-071 | Cov pa oxygen |
| NF C 20-455 | "Kev Ntsuas Hluav Taws Xob" |
| DIN 53438 | "Kev nthuav tawm nplaim taws" |
| Kev Tiv Thaiv Kub Siab | |
| BS 476 Tshooj No. 7 | "Kev Nthuav Dav ntawm nplaim taws - Cov Khoom Siv Hauv Tsev" |
| DIN 4172 | "Kev coj cwj pwm hluav taws ntawm cov khoom siv hauv tsev" |
| ASTM E648 | Cov Npog Pem Teb - Radiant Panel |
| Kev lom | |
| SMP 800C | "Kev Ntsuas Tshuaj Lom" |
| BS 6853 | "Kev Tso Pa Luam Yeeb" |
| NF X 70-100 | "Kev Ntsuas Tshuaj Lom" |
| ATS 1000.01 | "Kev Ceev ntawm Pa Luam Yeeb" |
| Kev Tsim Pa Luam Yeeb | |
| BS 6401 | "Kev Ntsuas Qhov Muag Pom Kev Tshwj Xeeb ntawm Pa Luam Yeeb" |
| BS 6853 | "Kev Tso Pa Luam Yeeb" |
| NES 711 | "Cov Pa Luam Yeeb ntawm Cov Khoom Uas Muaj Kev Kub Hnyiab" |
| ASTM D2843 | "Kev Nqus Pa Luam Yeeb Los Ntawm Kev Hlawv Yas" |
| ISO CD5659 | "Kev Ceev Pom Kev Tshwj Xeeb - Kev Tsim Pa Luam Yeeb" |
| ATS 1000.01 | "Kev Nthuav Dav ntawm Pa Luam Yeeb" |
| DIN 54837 | "Tsim Pa Luam Yeeb" |
Kev Ntsuas Kev Tiv Thaiv Kev Kub Hnyiab
Hauv feem ntau ntawm cov kev sim uas ntsuas qhov tsis kam rau kev kub hnyiab, cov nplaum tsim nyog yog cov uas tsis txuas ntxiv kub hnyiab rau ib lub sijhawm tseem ceeb tom qab tshem tawm qhov chaw ntawm kev kub hnyiab. Hauv cov kev sim no cov qauv nplaum kho tau tuaj yeem raug rau kev kub hnyiab yam tsis muaj kev sib txuas (cov nplaum raug sim ua zaj duab xis dawb).
Txawm hais tias txoj hauv kev no tsis ua piv txwv txog qhov tseeb tiag, nws muab cov ntaub ntawv pab tau txog qhov kev tiv taus ntawm cov nplaum rau kev hlawv.
Cov qauv qauv uas muaj ob qho tib si nplaum thiab nplaum kuj tuaj yeem sim tau. Cov txiaj ntsig no yuav sawv cev ntau dua ntawm kev ua tau zoo ntawm cov nplaum hauv hluav taws tiag tiag vim tias qhov kev pab los ntawm cov nplaum tuaj yeem yog qhov zoo lossis tsis zoo.
UL-94 Kev Ntsuas Kub Ntsug
Nws muab kev ntsuam xyuas ua ntej ntawm qhov kub hnyiab thiab dej ntws rau cov polymers siv rau hauv cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv, thiab lwm yam kev siv. Nws hais txog cov yam ntxwv ntawm kev siv kawg ntawm kev kub hnyiab, qhov kub hnyiab, nplaim taws kis, kev pab roj, qhov kub hnyiab, thiab cov khoom ntawm kev kub hnyiab.
Ua Haujlwm thiab Teeb tsa - Hauv qhov kev sim no, cov qauv zaj duab xis lossis cov khoom siv coated raug teeb tsa ntsug hauv qhov chaw kaw tsis muaj cua nkag. Lub cub hluav taws raug muab tso rau hauv qab cov qauv rau 10 vib nas this thiab lub sijhawm ntawm kev hlawv raug teem sijhawm. Txhua qhov dej ntws uas ua rau kub hnyiab paj rwb phais uas tso rau 12 ntiv tes hauv qab cov qauv raug sau tseg.
Qhov kev xeem muaj ntau pawg:
94 V-0: Tsis muaj cov qauv uas kub hnyiab ntev tshaj 10 vib nas this tom qab hlawv. Cov qauv tsis kub hnyiab mus txog rau ntawm lub clamp tuav, ntws thiab hlawv paj rwb, lossis muaj kev kub hnyiab ntev li 30 vib nas this tom qab tshem tawm cov nplaim taws sim.
94 V-1: Tsis pub cov qauv kuaj muaj kev kub hnyiab ntau tshaj 30 vib nas this tom qab txhua zaus uas raug hluav taws. Cov qauv kuaj yuav tsum tsis txhob kub hnyiab mus txog rau ntawm lub clamp tuav, ntws thiab hlawv paj rwb, lossis muaj lub teeb ci ntsa iab ntau tshaj 60 vib nas this.
94 V-2: Qhov no cuam tshuam nrog tib cov qauv li V-1, tsuas yog tias cov qauv raug tso cai kom ntws thiab hlawv cov paj rwb hauv qab cov qauv.
Lwm Cov Tswv Yim Rau Kev Ntsuas Kev Tiv Thaiv Kev Kub Hnyiab
Lwm txoj kev los ntsuas qhov tsis kam ntawm cov khoom siv yog ntsuas qhov ntsuas oxygen limiting (LOI). LOI yog qhov tsawg kawg nkaus ntawm cov pa oxygen uas qhia ua feem pua ntawm cov pa oxygen thiab nitrogen uas tsuas yog txhawb nqa kev kub hnyiab ntawm cov khoom siv thaum pib ntawm chav tsev kub.
Qhov kev tiv taus ntawm cov nplaum rau qhov kub siab thaum muaj hluav taws kub yuav tsum tau xav txog tshwj xeeb tsis suav nrog cov nplaim taws, pa luam yeeb, thiab cov tshuaj lom. Feem ntau cov khoom siv hauv qab yuav tiv thaiv cov nplaum ntawm hluav taws. Txawm li cas los xij, yog tias cov nplaum xoob lossis lwj vim qhov kub ntawm hluav taws, qhov sib koom ua ke tuaj yeem ua tsis tiav ua rau cov khoom siv hauv qab thiab cov nplaum sib cais. Yog tias qhov no tshwm sim, cov nplaum nws tus kheej yuav raug nthuav tawm ua ke nrog cov khoom siv hauv qab thib ob. Cov chaw tshiab no ces tuaj yeem pab txhawb ntxiv rau hluav taws.
Lub NIST pa luam yeeb ceev chamber (ASTM D2843, BS 6401) yog siv dav hauv txhua qhov kev lag luam rau kev txiav txim siab ntawm cov pa luam yeeb uas tsim los ntawm cov khoom khov thiab cov khoom sib dhos uas tau teeb tsa rau hauv txoj haujlwm ntsug hauv lub chamber kaw. Cov pa luam yeeb ceev yog ntsuas los ntawm optically.
Thaum ib daim nplaum raug muab tso rau ntawm ob lub substrates, qhov kev tiv thaiv hluav taws thiab kev ua kom sov ntawm cov substrates tswj qhov kev lwj thiab kev tso pa tawm ntawm cov nplaum.
Hauv kev ntsuam xyuas pa luam yeeb ceev, cov nplaum tuaj yeem kuaj ib leeg ua ib txheej dawb kom ua rau muaj qhov xwm txheej phem tshaj plaws.
Nrhiav Qib Tiv Thaiv Hluav Taws Uas Tsim Nyog
Saib ntau yam khoom siv tiv thaiv hluav taws uas muaj nyob hauv khw niaj hnub no, tshuaj xyuas cov ntaub ntawv kev siv tshuab ntawm txhua yam khoom, tau txais kev pab txog kev siv tshuab lossis thov cov qauv.
TF-101, TF-201, TF-AMP
