Yuav Ua Li Cas Thiaj Ua Tau Epoxy Resin Yas Thiab Nws Cov Kev Siv Hauv Kev Lag Luam Kev Tsim Kho
Epoxy resin yog ib yam khoom siv polymer nrov heev vim nws lub zog nplaum siab, tiv taus tshuaj lom neeg zoo, thiab muaj zog kho tshuab zoo dua tom qab ua kom tawv. Hauv kev xyaum, lo lus "epoxy resin yas" txhais tau tias cov khoom kawg ntawm epoxy uas tau tawv (kho) los ua cov khoom siv khov kho thiab ruaj khov, zoo li yas. Hauv kev lag luam kev tsim kho, epoxy yog siv dav ua cov nplaum rau cov qauv, txheej hauv pem teb, tiv thaiv pob zeb, thiab txawm tias yog cov khoom kho thiab txhawb nqa rau cov qauv. Tsab xov xwm no tham txog yuav ua li cas ua yas los ntawm epoxy resin - los ntawm kev xaiv cov khoom siv, sib tov, nchuav, thiab kho - thiab nws cov ntawv thov hauv kev lag luam kev tsim kho.
Epoxy Resin yog dab tsi?
Cov tshuaj epoxy yog ib yam khoom uas muaj ob yam: resin (ib feem A) thiab hardener (ib feem B). Thaum ob yam no sib xyaw ua ke hauv ib qho piv txwv tshwj xeeb, yuav muaj kev sib xyaw ua ke ntawm cov tshuaj lom neeg (crosslinking), ua rau cov kua dej ntawd ua cov khoom tawv. Cov txheej txheem no yog qhov ua rau cov epoxy "yas." Tsis zoo li cov kua nplaum ib txwm, uas qhuav vim yog kev ua pa, epoxy tawv vim yog kev sib xyaw ua ke ntawm cov tshuaj lom neeg, ua rau cov khoom muaj zog dua, tiv taus dej thiab qee yam tshuaj lom neeg.
Hauv kev tsim kho, epoxy feem ntau raug xaiv vim tias:
1. Muaj zog heev rau cov pob zeb ua vaj tse, hlau, ntoo thiab qee hom pob zeb.
2. Tsawg shrinkage thaum hardened.
3. Kev tiv taus kev sib txhuam thiab kev tiv taus rau qee cov roj / tshuaj lom neeg.
4. Muaj peev xwm ua tau formula: ua tau tuab dua, ua kua ntau dua, tawv sai dua/qeeb dua, lossis sib xyaw nrog cov khoom sau.
Cov Khoom Siv thiab Cov Cuab Yeej Siv Rau Kev Ua Yas Epoxy Resin
Ua ntej pib, npaj cov ntaub ntawv thiab cov cuab yeej hauv qab no:
Bahan
– Epoxy resin (A) thiab hardener (B) raws li hom/hom uas koj xaiv.
- Pigment (xaiv tau) rau kev pleev xim.
– Cov khoom siv ntxiv (xaiv tau): piv txwv li, hmoov silica, microballoons, hmoov pob zeb, xuab zeb quartz zoo, lossis fiber, nyob ntawm seb xav tau dab tsi. Hauv kev tsim kho, cov khoom siv ntxiv feem ntau siv los ua kom lub zog compressive nce ntxiv, txo cov nqi, lossis tswj qhov viscosity.
- Tus neeg sawv cev tso tawm (xaiv tau) yog tias siv pwm kom yooj yim tshem tawm.
Ib lub cuab yeej
- Cov nplai digital (pom zoo) lossis cov khob ntsuas kom paub tseeb tias qhov piv yog qhov tseeb.
– Lub thawv sib tov (yas tuab los yog iav sib tov tshwj xeeb).
- Spatula/paddle nplawm.
- Cov pwm los yog qhov chaw ua haujlwm yuav tsum tau coated.
- Phom me me/teeb me me (xaiv tau) los pab tshem cov npuas dej.
– Cov khoom siv tiv thaiv tus kheej (PPE): hnab looj tes nitrile, tsom iav tiv thaiv, lub ntsej muag/lub tshuab ua pa yog tias tsim nyog, thiab cua nkag tau zoo rau kev ua haujlwm.
Cov Kauj Ruam Ua Epoxy Resin Yas
1) Txheeb xyuas lub hom phiaj thiab xaiv hom epoxy
Kauj ruam thawj zaug yog txiav txim siab qhov khoom kawg:
– Xav tsim ib yam khoom khov kho/cast (piv txwv li, ib qho qauv, vaj huam sib luag, lossis ib feem)?
– Xav tsim ib txheej rau hauv pem teb lossis cov pob zeb ua vaj tse?
- Xav ua ib daim nplaum/filler tawg?
Lub hom phiaj siv ntawm cov khoom txiav txim siab hom epoxy (viscosity, lub sijhawm ua haujlwm / lub sijhawm siv tau ntawm lub lauj kaub, tiv taus UV, tiv taus tshuaj lom neeg). Rau cov chaw raug tshav ntuj, epoxy feem ntau xav tau ib txheej txheej sab saud (piv txwv li, polyurethane) vim tias ntau cov epoxies feem ntau daj vim raug UV.
2) Kev npaj thaj chaw ua haujlwm thiab pwm
Xyuas kom tseeb tias thaj chaw ua haujlwm:
Qhuav, huv si thiab muaj cua nkag tau zoo.
- Kub ruaj khov (feem ntau 20–30 ° C yog qhov zoo tagnrho, nyob ntawm cov lus qhia ntawm cov khoom).
- Tsis muaj hmoov av rau qhov chaw du.
Yog tias siv pwm, xyuas kom tseeb tias:
- Luam tawm huv si thiab sib npaug.
- Siv cov tshuaj tso tawm yog tias tsim nyog los tiv thaiv cov epoxy kom tsis txhob lo mus tas li.
3) Ntsuas qhov piv ntawm cov resin thiab cov hardener kom raug.
Qhov yuam kev loj tshaj plaws uas cov neeg pib tshiab ua yog siv qhov sib tov tsis raug. Ua raws li cov lus qhia ntawm cov chaw tsim khoom - lawv tuaj yeem raws li qhov hnyav lossis ntim. Kev siv lub nplai digital feem ntau yog qhov tseeb dua.
Qhov piv tsis sib xws tuaj yeem ua rau:
- Epoxy tsis tawv tag (nplaum).
- Lub zog qis thiab yooj yim tawg.
- Qhov chaw uas muaj roj los yog tawg yooj yim.
4) Sib tov cov resin thiab hardener kom zoo.
Muab cov resin thiab cov hardener nchuav rau hauv lub thawv, tom qab ntawd do maj mam tab sis kom huv si rau 2-5 feeb (nyob ntawm seb muaj pes tsawg). Cov txheej txheem zoo:
– Do ua ib lub voj voog, ces qee zaum "khawb" phab ntsa thiab hauv qab ntawm lub thawv.
- Tsis txhob do ntau dhau uas yuav ua rau muaj ntau lub npuas cua.
Rau cov haujlwm tseem ceeb, siv txoj kev sib tov ob zaug: thaum sib tov lawm, muab cov khoom sib tov tso rau hauv lub thawv tshiab thiab do ib pliag ntxiv. Qhov no yuav txo qhov kev pheej hmoo ntawm cov khoom xyaw tsis tau sib tov yuav poob rau hauv cov ces kaum ntawm lub thawv.
5) Ntxiv cov xim lossis cov khoom sau (xaiv tau)
Yog tias koj xav tau xim, ntxiv cov xim kom txaus. Rau cov khoom siv rau kev tsim kho:
- Ntxiv me ntsis thaum sib tov.
- Xyuas kom tseeb tias nws tsis lo rau.
- Kho qhov viscosity kom haum rau daim ntawv thov (piv txwv li rau kev kho qhov tawg, cov khoom sib tov tuaj yeem ua zoo li cov nplaum; rau grouting nws tuaj yeem ua kua ntau dua).
Lus Cim: kev ntxiv cov khoom sau ntau dhau tuaj yeem cuam tshuam rau lub zog kawg lossis lub sijhawm teeb tsa, yog li ua qhov kev sim me me ua ntej.
6) Nchuav los yog siv rau saum npoo
Yuav ua kom cov yas epoxy ua ib yam khoom khov kho:
Maj mam nchuav cov khoom sib tov rau hauv lub pwm.
– Yog tias qhov ntim loj, nchuav nws ua ntu zus kom txo qhov kub ntawm qhov tshuaj tiv thaiv (epoxy yog exothermic).
Rau kev tsim kho txheej txheem:
– Xyuas kom tseeb tias qhov chaw ua vaj tse tau npaj tiav lawm (qhov chaw zoo li cas, tsis muaj plua plav, tsis muaj roj).
- Siv lub roller/leveler los pleev xim raws li qhov tuab uas xav tau.
7) Tshem tawm cov npuas cua (yog tias tsim nyog)
Cov npuas dej tuaj yeem tshwm sim los ntawm kev sib xyaw lossis los ntawm cov qhov hws saum npoo. Yuav ua li cas kom txo tau lawv:
– Siv rab phom kub/teeb ci kom deb ntawm qhov chaw nyab xeeb thiab txav mus sai sai saum npoo av.
- Ua haujlwm ntawm qhov kub thiab txias uas tsim nyog; qhov kub qis dhau ua rau cov viscosity nce thiab ntes tau huab cua.
8) Cov txheej txheem kho (ua kom tawv)
Tom qab siv, cia cov epoxy kho rau lub sijhawm pom zoo. Cov kauj ruam dav dav:
- Lub sijhawm Gel: pib tuab.
- Tsis muaj qhov nplaum: qhov chaw tsis lo.
– Kho tag nrho: lub zog siab tshaj plaws yuav siv sijhawm li 3–7 hnub, nyob ntawm cov khoom.
Thaum lub sijhawm kho:
- Tsis txhob muaj hmoov av thiab dej.
- Tsis txhob siv cov khoom hnyav ua ntej lub sijhawm.
Cov Ntawv Thov Epoxy Resin hauv Kev Lag Luam Tsim Kho
1) Pem teb epoxy
Cov ntawv thov feem ntau yog cov plag tsev epoxy rau cov chaw tsim khoom, cov tsev rau khoom, cov tsev kho mob, thiab cov chaw nres tsheb. Cov txiaj ntsig:
- Tiv taus kev txhuam thiab yooj yim los ntxuav.
- Tiv taus qee yam roj/tshuaj lom.
- Qhov saum npoo tuaj yeem ua kom tsis txhob plam nrog cov pob zeb sib xyaw.
2) Cov nplaum rau cov qauv thiab kev sib txuas ntawm cov pob zeb
Cov epoxy siv los txuas cov pob zeb qub rau cov pob zeb tshiab, lossis los txuas cov hlau phaj rau cov pob zeb. Hauv kev kho dua tshiab ntawm cov qauv, epoxy ua lub luag haujlwm tseem ceeb hauv kev txhawb nqa cov pob qij txha thiab txhim kho kev ruaj khov ntawm cov qauv.
3) Txhaj tshuaj tawg
Rau cov kab nrib pleb ntawm cov pob zeb ua vaj tse, cov tshuaj epoxy uas txhaj tau tuaj yeem ua kom puv qhov sib txawv thiab "kaw" qhov kab nrib pleb. Vim nws qhov viscosity qis, epoxy tuaj yeem nkag mus rau hauv cov kab nrib pleb me me, ua kom tawv, thiab rov qab muaj zog dua.
4) Grouting thiab anchoring
Epoxy grout yog siv rau:
- Lub hauv paus tshuab kom ruaj khov thiab tiv taus kev co.
- Cov ntsia hlau txuas (cov hlau txuas tshuaj lom neeg) hauv cov pob zeb/pob zeb.
Epoxy muab kev nplaum siab thiab tiv taus zoo rau cov khoom siv tensile / shear.
5) Txheej tiv thaiv xeb rau hlau thiab pob zeb ua vaj tse
Hauv cov chaw muaj kuab paug xws li cov chaw tsim tshuaj lom neeg lossis thaj chaw ntug dej hiav txwv, cov txheej epoxy tiv thaiv cov nplaim ntawm xeb thiab kev puas tsuaj. Rau cov pob zeb ua vaj tse, epoxy pab txo cov dej nkag thiab cov chloride ions, uas tuaj yeem ua rau cov xeb ntxiv sai dua.
6) Kev kho qhov chaw thiab kev kho kom zoo nkauj
Siv cov epoxy thiab quartz xuab zeb/filler sib xyaw los kho cov chaw uas tawg, puas, lossis puas lawm. Qhov tshwm sim yog qhov ruaj khov, rov qab ua haujlwm sai sai, thiab lo rau cov khoom siv zoo.
Cov Lus Qhia Txog Kev Nyab Xeeb thiab Zoo
– Siv cov khoom siv tiv thaiv tus kheej (PPE): hnab looj tes nitrile thiab cua nkag tau zoo.
Tsis txhob "kwv yees" qhov sib piv, ib txwm ntsuas.
- Kev sim me me ua ntej cov haujlwm loj, tshwj xeeb yog tias ntxiv cov khoom sau / xim.
- Ua tib zoo saib xyuas qhov sib xws nrog ib puag ncig (UV, kub, tshuaj lom neeg).
– Ua raws li daim ntawv qhia txog cov khoom (technical data sheet - TDS) thiab daim ntawv qhia kev nyab xeeb (SDS).
Kev kaw
Kev ua cov yas epoxy resin yog ib qho txheej txheem ntawm kev sib xyaw cov resin thiab cov khoom tawv hauv qhov sib piv kom raug, sib tov kom huv si, thiab tom qab ntawd cia nws kho kom khov kho. Nrog cov txheej txheem zoo, epoxy tuaj yeem tsim cov khoom siv "yas" uas ntseeg tau heev rau kev tsim kho - los ntawm kev pleev xim hauv pem teb thiab kev txhaj tshuaj tawg mus rau cov nplaum thiab grouting mus rau kev tiv thaiv xeb. Cov yuam sij rau kev vam meej yog nyob rau hauv kev npaj nto, kev sib tov sib xyaw kom raug, kev tswj cov npuas dej, thiab kev ua raws li lub sijhawm kho.
Yog tias koj xav tau, kuv tuaj yeem hloov kho tsab xov xwm no mus rau hauv ib qho version uas muaj kev txawj ntse ntau dua (sau cov kev ntsuas xws li lub neej ntawm lub lauj kaub, qhov tuab ntawm txheej, cov qauv kev npaj ntawm cov pob zeb) lossis ib qho version nrov dua rau cov neeg nyeem feem ntau.
