Great Magtech (Xiamen) Electric Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov muag khoom ntawm polyvinyl cawv fiber ntau hauv Suav teb. Thov koj xav tias dawb rau cov lag luam wholesale zoo polyvinyl cawv fiber ntau los ntawm peb lub hoobkas. Yog tias koj muaj lus nug txog kev koom tes, thov koj xav email rau peb.
Polyvinyl Alcohol Fiber yog dab tsi?
Polyvinyl cawv (PVA) fiber ntau yog siv nyob rau hauv ultra-siab-kev ua tau zoo pob zeb thiab siab- ductility pob zeb. Nws cov yam ntxwv tseem ceeb suav nrog lub zog siab thiab siab modulus, qis elongation, hnav tsis kam, acid thiab alkali tsis kam, thiab huab cua tsis zoo. Nws kuj pom zoo affinity thiab bonding nrog cement, gypsum, thiab lwm yam substrates. Tsis tas li ntawd, nws tsis yog - tshuaj lom, tsis yog - ua qias tuaj, thiab tsis ua rau tib neeg cov tawv nqaij, ua rau nws yog ib tiam tom ntej ntawm siab - cov khoom siv ntsuab ntsuab.
Tam sim no, nyob rau hauv cov cement pob zeb engineering kev lag luam, vim muaj cov khoom tshwj xeeb ntawm PVA fiber ntau, nws muaj kev loj hlob dav dav hauv engineering thiab kev siv kev tsim kho, thiab yog cov khoom tshiab zoo tshaj plaws uas tuaj yeem hloov pauv asbestos.
Cov yam ntxwv tseem ceeb ntawm PVA Fiber
Siab zog thiab qis elongation
Excellent mechanical properties, with extremely high tensile strength (>1200 MPa) and modulus (>35 GPa), ua rau nws yog ib qho khoom siv ntxiv zoo heev.
Acid thiab alkalinity
Tsawg zog poob nyob rau hauv lub caij nyoog acidic los yog alkaline ib puag ncig.
Corrosion Resistance
Cov fibers tsis pwm, rot, los yog kis kab kab txawm tias tom qab raug faus rau hauv av rau ncua sij hawm. Nws tuaj yeem ua haujlwm ruaj khov hauv ib puag ncig hnyav rau lub sijhawm ntev.
Zoo Dispersibility thiab Adhesion
Nws muaj kev sib raug zoo zoo nrog cov cement thiab gypsum substrates, kom ntseeg tau tias kev faib tawm tsis sib xws thiab tsim kom muaj kev sib raug zoo hauv matrix.
Specification ntawm Polyvinyl cawv Fiber
| Fiber txoj kab uas hla | 15µm ± 3 |
| Tensile zog | Ntau tshaj lossis sib npaug rau 1200MPa |
| Elastic modulus | Ntau dua lossis sib npaug rau 35GPa |
| Elongation thaum so | 6-11% |
| Kub dej tsis kam | Ntau dua lossis sib npaug li 98 degree |
| Qhuav cua sov softening point | Ntau dua lossis sib npaug li 216 degree |
| Ntev | 6mm (tseem tuaj yeem tsim tau raws li cov neeg siv khoom xav tau) |
Functional Mechanism Ntawm Polyvinyl Alcohol Fiber
1. Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv thiab Kev Tiv Thaiv Dej: Qhov sib faib cov fibers nyob rau hauv cov pob zeb (mortar) zoo tiv thaiv qhov tshwm sim thiab kev loj hlob ntawm cov kab nrib pleb, txhim kho cov dej tsis zoo thiab cov dej tsis zoo. Kev siv ntawm PVA thiab PA (Nylon) fibers.
| Hom Fiber | Fiber ntau npaum li cas (g / m³) | Crack txo tus nqi% |
| PA (Nylon) Fiber ntau | 90 | 46 |
| PVA Qhob / Mortar Fiber | 900 | 86 |
2. Kev cuam tshuam thiab av qeeg ua haujlwm: Ua kom muaj kev cuam tshuam lub zog thiab txhim kho av qeeg.
| Hom | Fiber ntau | Cement Board Khoom | Cement board formula: | ||||||
| Kev zoo (d) | Lub zog (kg / cm²) | Elongation (%) | Young's Modulus (kg / cm²) | Flexural zog (kg / cm²) | Toughness (qhov ratio) | Kev cuam tshuam lub zog (kg / cm²) | Cracks (hnub) | ||
| PVA pob zeb / mortar tshwj xeeb fiber | 2.4 | 15.2 | 6 | 3685 | 378 | 420 | 4.9 | 30 thiab siab dua | Fiber 0.003: Cement 1: Silica xuab zeb 2 |
| 2.4 | 14.4 | 6.8 | 3127 | 356 | 38 | 4.3 | 30 thiab siab dua | ||
| Asbestos | / | 240 | 1 | 2.3 | 1 | Asbestos (ntub) 15: Slurry 3: Dej 82 | |||
3. Txhim kho qhov khov -thaw tsis kam thiab qaug zog ua haujlwm ntawm pob zeb.
4. Ua kom muaj zog: Txhim kho lub brittleness ntawm pob zeb thiab txhim kho nws qhov cuam tshuam thiab khoov tsis kam.
Daim ntawv thov ntawm Polyvinyl Alcohol Fiber
1. Loj- ntim pob zeb ua ke thiab kev tsim kho ntawm cov railings, dams, chaw nres tsheb, thiab lwm yam.
2. Fabrication ntawm cov khoom vaj khoom tsev, slabs, lub teeb yuag phab ntsa vaj huam sib luag, thiab lwm yam, raws li ib tug hloov asbestos, thiab zus tau tej cov asbestos cement khoom.
3. Shotcrete rau tunnels, mines, culverts, thiab lwm yam.
4. Fabrication ntawm lub teeb yuag phab ntsa panels, GRC panels, rwb thaiv tsev boards, thiab lwm yam khoom siv hauv tsev.
Yuav siv PVA Fiber li cas
1. Ua kom qhov qub pob zeb sib xyaw ua ke tsis hloov pauv, ntsuas qhov hnyav ntawm cov fibers raws li tus qauv tsim ntxiv thiab qhov ntim ntawm cov pob zeb sib tov txhua zaus.
2. Tom qab npaj cov aggregates, ntxiv cov fibers, ces ntxiv cov aggregates thiab fibers ua ke rau lub tov khoom, ntxiv dej, thiab sib tov.
3. Tom qab sib tov, coj ib qho piv txwv. Yog hais tias cov fibers sib npaug rau hauv monofilaments, cov pob zeb yog npaj rau kev siv. Yog tias tseem muaj cov pob khoom ntawm cov fibers, txuas lub sijhawm sib xyaw los ntawm 30-60 vib nas this ua ntej siv.
4. Kev tsim kho thiab kho cov txheej txheem rau fiber ntau -cov pob zeb ua kom muaj zog yog ib yam li cov pob zeb zoo tib yam.
5. Cov khoom noj ntau npaum li cas: Feem ntau, rau cov mortar los yog cov cement paste, thiab fiber ntau - cov ntaub ntawv cement tiaj tiaj thiab cov ntawv corrugated, qhov sib ntxiv yog 0.6-1 kg / m², nrog rau ntau npaum li 0.6 kg / m²; rau pob zeb, qhov sib ntxiv yog 0.6-1.9 kg / m², nrog rau ntau npaum li cas ntawm 0.9 kg / m².
FAQ
Q: Dab tsi ua rau polyvinyl cawv (PVA) fiber ntau txawv ntawm lwm cov pob zeb ua kom muaj zog?
A: Polyvinyl cawv (PVA) fiber ntau muaj npe nrov rau nws cov khoom siv zoo heev rau cov cement matrix thiab superior tawg kuj. Tsis zoo li polypropylene lossis steel fibers, PVA fibers tuaj yeem tsim cov khoom siv tshuaj lom neeg nrog cov khoom siv cement hydration, txhim kho pob zeb ceev thiab ua haujlwm ntev.
Q: PVA fibers puas siv tau rau txhua hom pob zeb?
A: Yog. PVA fibers yog dav siv nyob rau hauv precast Cheebtsam, shotcrete, txuas hniav, tunnels, thiab pem teb, tsis tsuas yog txhim kho lub tensile lub zog ntawm pob zeb, tab sis kuj pab txhawb kev ncej - cracking ductility. Lawv tsim nyog rau ob qho tib si cov qauv thiab tsis yog - cov qauv ua vaj tse.
Q: Dab tsi yog cov txiaj ntsig ntawm kev siv PVA fiber ntau hauv kev ua vaj tse pob zeb?
A: PVA fibers ua tau zoo tiv thaiv micro- tawg tsim, txhim kho kev cuam tshuam, thiab ua kom lub neej ntev. Muab piv rau cov hlau fibers, lawv tsis yog-corrosive, lub teeb yuag, thiab yooj yim dispersed, ua rau lawv ib tug ntau dua thiab kev siv dag zog ntxiv.
Q: Ua li cas polyvinyl cawv fibers cuam tshuam nrog cawv hauv ntau daim ntawv thov?
A: PVA fibers feem ntau pom muaj kev tiv thaiv zoo rau cov cawv xws li ethanol thiab isopropanol. Thaum polyvinyl cawv yog soluble hauv dej, nws yog insoluble nyob rau hauv organic solvents xws li cawv, acetone, thiab ether. Yog li ntawd, nyob rau hauv cawv- muaj ib puag ncig (xws li kev ntxuav saum npoo los yog tshuaj kho mob), PVA fibers feem ntau tswj cov qauv kev ruaj ntseg thiab cov khoom sib txuas zoo.
Txawm li cas los xij, kev cuam tshuam ntev ntev ntawm cov dej cawv ntau los yog qhov kub thiab txias yuav ua rau o me ntsis los yog qhov muag muag, tab sis qhov no feem ntau tsis cuam tshuam rau lawv cov txiaj ntsig ntxiv hauv cov cement lossis cov khoom sib xyaw.
Q: Cov cawv puas tuaj yeem cuam tshuam lub zog lossis ua haujlwm ntev ntawm polyvinyl cawv fibers?
A: Hauv kev tsim kho lossis kev lag luam ib puag ncig, cawv tsis cuam tshuam rau lub zog thiab kav ntev ntawm PVA fibers. Lawv cov saw hlau polymer nyob ruaj khov rau feem ntau cov kuab tshuaj me me, thiab lawv cov khoom siv kho tshuab tsis txo qis. Txawm li cas los xij, hauv cov ntawv thov tshwj xeeb uas cuam tshuam nrog kev haus cawv ntev ntev, kev ntsuas kev sib raug zoo raug pom zoo kom ua haujlwm ruaj khov.
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