Ua Haujlwm Nrog Epoxy: Yuav Ua Li Cas Dilute Nrog Tawv Rau Tus Pib? Dab Tsi Ntxiv Kom Yug? Yuav Siv Tus Corrector Li Cas?

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-18 12:13

Epoxy resin, ua cov khoom siv polymer ntau yam, tsis yog siv rau kev lag luam lossis kho haujlwm nkaus xwb, tab sis kuj yog rau kev muaj tswv yim. Siv cov yas, koj tuaj yeem tsim cov hniav nyiaj hniav kub zoo nkauj, khoom plig, tais diav, khoom dai kom zoo nkauj, rooj tog zaum, thiab lwm yam. Cov khoom lag luam epoxy muaj ob ntu, yog li koj yuav tsum paub yuav ua li cas thiab hauv qhov piv txwv lawv tau siv. Hauv kab lus no, peb yuav tshuaj xyuas seb yuav ua haujlwm nrog epoxy li cas.

Cov Cai Yooj Yim

Koj tuaj yeem ua haujlwm nrog epoxy resin hauv tsev. Txhawm rau kom cov haujlwm no muaj kev lom zem, thiab qhov tshwm sim ntawm kev ua haujlwm muaj tswv yim thov thiab txhawb siab, nws yog qhov tsim nyog yuav tsum paub thiab ua raws cov cai yooj yim rau kev siv cov polymer no.

• Thaum sib xyaw cov khoom sib xyaw, qhov yuav tsum tau ua nruj me ntsis . Tus naj npawb ntawm cov khoom sib xyaw sib xyaw ua ke nyob ntawm qib epoxy thiab cov chaw tsim khoom pom zoo. Yog tias koj yog thawj tus tsim nrog hom tshuaj polymer polymer tshiab rau koj tus kheej, tom qab ntawd koj yuav tsum tsis txhob cia siab rau cov kev paub dhau los ntawm no - txhua hom tshuaj muaj pes tsawg leeg muaj nws tus yam ntxwv. Yog tias koj ua yuam kev, qhov sib xyaw ua ke yuav tsis siv tau. Ib qho ntxiv, qhov sib piv ntawm epoxy thiab tawv yuav tsum tau nruj me ntsis raws li qhov hnyav lossis ntim. Piv txwv, txhawm rau ntsuas qhov tseeb ntawm cov khoom xyaw, koob txhaj tshuaj kho mob tau siv - cais ib qho rau txhua feem. Muab cov khoom xyaw polymer cob rau hauv ib lub tais cais, tsis yog qhov uas koj ntsuas.
• Kev sib txuas ntawm cov khoom siv yuav tsum tau ua nyob rau hauv ib theem zuj zus, yog tias nws tau ua txhaum, tom qab ntawv cov khoom yuav pib ua polymerization ua ntej . Thaum sib tov, ntxiv cov tawv rau lub hauv paus, tab sis tsis hloov pauv. Ncuav maj mam, thaum maj mam ua kom muaj pes tsawg leeg rau 5 feeb. Thaum nplawm, huab cua npuas nyob rau hauv qhov muaj pes tsawg leeg thaum cov tawv tawv nchuav yuav tawm ntawm cov tshuaj. Yog tias, thaum sib xyaw cov khoom xyaw, qhov hnyav dhau los ua khov thiab tuab, tom qab ntawd nws tau rhaub kom + 40 ° C hauv dej da dej.
• Epoxy rhiab heev rau qhov kub ib puag ncig . Thaum cov khoom sib xyaw ua ke tau sib xyaw nrog cov tawv tawv, cov tshuaj tiv thaiv tshwm sim nrog kev tso cua sov. Qhov loj dua qhov ntim ntawm qhov sib xyaw, ntau lub zog cua sov tau tso tawm thaum cov khoom sib xyaw ua ke. Qhov kub ntawm qhov sib xyaw thaum lub sijhawm txheej txheem no tuaj yeem ncav cuag + 500 ° C. Yog li ntawd, qhov sib xyaw ntawm cov tshuaj tiv thaiv thiab cov tawv tawv yog nchuav rau kev ua haujlwm rau hauv pwm ua los ntawm cov khoom siv tiv taus tshav kub. Feem ntau cov tawv tawv tawv ntawm qhov kub hauv chav, tab sis yog tias nws yog qhov yuav tsum tau ua kom nrawm dua cov txheej txheem no, tom qab ntawd cov khoom xyaw thawj yuav tsum tau preheated.

Cov tshuaj polymer sib xyaw ua ke tuaj yeem siv rau hauv txheej txheej nyias nyias lossis ua pwm ntau rau hauv cov pwm npaj. Feem ntau, epoxy resin tau siv los ua kom nws nrog cov iav txheej txheej.

Tom qab ua kom tawv, txheej tuab thiab ruaj khov tau tsim uas tsis ntshai dej, ua kom sov zoo thiab tiv thaiv kev siv hluav taws xob tam sim no.

Dab tsi thiab yuav yug me nyuam li cas?

Koj tuaj yeem ua cov tshuaj epoxy uas tau npaj ua tiav nrog koj txhais tes hauv tsev yog tias koj ua kom cov tshuaj tov nrog cov tawv tawv. Qhov sib xyaw ua ke feem ntau yog 10 ntu cob rau 1 feem tawv . Qhov sib piv no yuav txawv, nyob ntawm seb hom epoxy muaj pes tsawg leeg. Piv txwv, muaj cov qauv uas nws yuav tsum tau sib xyaw 5 ntu ntawm cov tshuaj polymer thiab 1 feem ntawm cov tawv tawv. Ua ntej npaj cov tshuaj polymer ua haujlwm, nws yog qhov yuav tsum tau suav tus nqi ntawm epoxy uas xav tau los ua kom tiav ib txoj haujlwm tshwj xeeb. Kev suav ntawm kev siv cov roj tuaj yeem ua rau lub hauv paus uas rau nchuav 1 m² ntawm thaj tsam rau txheej tuab ntawm 1 hli, 1, 1 litre ntawm cov sib xyaw ua tiav yog xav tau. Raws li, yog tias koj xav tau nchuav ib txheej sib npaug 10 hli ntawm ib cheeb tsam, koj yuav tsum tau dilute cov tshuaj nrog cov tawv tawv kom tau 11 liv ntawm cov khoom tiav.

Hardener rau epoxy resin - PEPA lossis TETA, yog cov tshuaj lom rau txheej txheem polymerization . Kev qhia ntawm cov khoom siv no rau hauv kev sib xyaw ntawm epoxy resin sib tov hauv qhov xav tau muab cov khoom tiav nrog lub zog thiab ua haujlwm ntev, thiab tseem cuam tshuam rau qhov kev pom zoo ntawm cov khoom.

Yog tias tawv tawv siv tsis raug, kev pab lub neej ntawm cov khoom yuav raug txo, thiab kev sib txuas ua nrog cov yas tsis tuaj yeem txiav txim siab tau.

Cov yas tuaj yeem npaj tau hauv qhov sib txawv ntawm qhov ntim

• Me me ua noj ua haus . Cov tshuaj epoxy cob yog sib xyaw txias hauv chav sov tsis tshaj + 25 ° C. Nws tsis pom zoo kom sib tov txhua qhov xav tau ntawm cov khoom siv ib zaug. Txhawm rau pib nrog, koj tuaj yeem sim ua cov ntawv xeem thiab saib yuav ua li cas nws yuav khov thiab cov yam ntxwv nws muaj. Thaum sib tov me me ntawm epoxy cob thiab tawv tawv, cov cua sov yuav tsim tawm, yog li koj yuav tsum tau npaj cov tais tshwj xeeb rau ua haujlwm nrog cov polymer, ntxiv rau qhov chaw uas ntim cov thawv nrog cov khoom kub tuaj yeem tso tau. Sib tov cov khoom sib xyaw polymer maj mam thiab ua tib zoo kom tsis muaj cua npuas hauv qhov sib tov. Cov tshuaj ua kom tiav tiav yuav tsum yog homogeneous, khov thiab yas, nrog qhov tsis pub dhau qib ntawm pob tshab.
• Loj ua noj ua haus . Cov khoom xyaw ntau ntxiv tau koom nrog hauv cov txheej txheem sib xyaw los ntawm ntim, ntau cua sov tau tsim los ntawm cov khoom siv polymer polymer. Vim li no, qhov ntau ntawm epoxy tau npaj siv cov txheej txheem kub. Txhawm rau ua qhov no, cov kua nplaum tau rhaub hauv dej da dej kom sov li ntawm + 50 ° C. Raws li qhov tshwm sim, qhov ntsuas no tso cai sib xyaw cov tshuaj nrog cov tawv tawv thiab txuas ntxiv nws lub neej ua haujlwm ua ntej tawv li 1.5-2 teev. Yog tias qhov kub nce mus txog + 60 ° C thaum ua kom sov, txheej txheem polymerization yuav ua kom nrawm dua. Ib qho ntxiv, nws yog qhov tsim nyog los xyuas kom tsis muaj dej nkag mus rau hauv epoxy thaum ua kom sov, uas yuav ua rau cov polymer yaj nws kom nws poob nws cov khoom nplaum thiab ua huab.

Yog tias ua tiav los ntawm kev ua haujlwm, nws yog qhov tsim nyog kom tau txais cov khoom muaj zog thiab yas, tom qab ua ntej kev qhia ntawm cov tawv tawv, DBF lossis DEG-1 yas yas ntxiv rau cov tshuaj epoxy . Nws cov nyiaj rau tag nrho cov ntim ntawm cov khoom siv yuav tsum tsis pub tshaj 10%. Cov yas yas yuav ua rau cov khoom ua tiav rau kev co thiab kev puas tsuaj ntawm cov khoom siv. Hauv 5-10 feeb tom qab qhia cov yas yas, cov tawv tawv ntxiv rau cov tshuaj epoxy.

Lub sijhawm no tsis tuaj yeem ua txhaum, txwv tsis pub epoxy yuav rhaub thiab poob nws cov khoom.

Cov cuab yeej xav tau

Txhawm rau ua haujlwm nrog epoxy, koj yuav xav tau cov cuab yeej hauv qab no:

• koob txhaj tshuaj tsis muaj rab koob - 2 pcs;
• khob lossis yas ntim rau sib xyaw ua ke;
• iav los yog ntoo ntoo;
• polyethylene zaj duab xis;
• aerosol corrector kom tshem tawm cov cua npuas;
• sandpaper los yog sander;
• tsom iav, hnab looj tes roj hmab, lub tshuab ua pa;
• coloring pigments, accessories, khoom zoo nkauj;
• pwm rau sau los ntawm silicone.

Thaum ua tiav txoj haujlwm, tus thawj coj yuav tsum muaj daim ntaub huv ntawm qhov npaj kom tshem tawm ntau dua lossis poob ntawm cov tshuaj epoxy muag muag.

Yuav siv li cas?

Txhua chav kawm tus tswv rau cov pib, qhov kev qhia paub txheej txheem ntawm kev ua haujlwm nrog epoxy resin tau ua tiav, muaj cov lus qhia rau kev siv cov polymer no. Txoj kev twg los xij uas koj txiav txim siab siv rau kev ua haujlwm, ua ntej tshaj plaws, koj yuav tsum npaj cov chaw ua haujlwm. Lawv yuav tsum tau ntxuav ntawm kev sib kis thiab ua kom zoo dua qub nrog cawv lossis acetone.

Txhawm rau txhim kho kev nplaum, cov nplaim tau pleev xim nrog cov ntawv nplua zoo los tsim cov nplaim uas yuav tsum tau ua.

Tom qab theem kev npaj no, koj tuaj yeem npaj mus rau cov kauj ruam tom ntej.

Sau rau hauv

Yog tias koj xav tau kua nplaum ob ntu, tom qab ntawd txheej txheej epoxy cob, tsis ntau tshaj 1 hli tuab, tau siv rau qhov chaw ua haujlwm. Tom qab ntawd ob qho tib si nrog cov nplaum tau sib koom ua ke nrog ib qho kev txav mus los tangential. Qhov no yuav pab ua kom muaj kev nyab xeeb txuas cov ntu thiab xyuas kom huab cua npuas raug tshem tawm. Txog kev ua kom muaj zog, ntu tuaj yeem kho tau rau 2 hnub hauv qhov clamp. Thaum nws yuav tsum tau txhaj tshuaj molding, cov cai hauv qab no tau ua raws:

• nchuav cov muaj pes tsawg leeg rau hauv cov pwm yog qhov tsim nyog nyob rau hauv kab rov tav
• ua haujlwm sab hauv tsev ntawm chav sov tsis qis dua + 20 ° C;
• yog li tom qab tawv cov khoom yooj yim tawm pwm, nws cov npoo raug kho nrog cov roj vaseline;
• yog tias ntoo yuav tsum tau nchuav, tom qab ntawd nws yuav tsum tau muab ziab kom qhuav.

Tom qab ua kom tiav, cov cua npuas raug tshem tawm nrog kev pab los ntawm tus kws kho mob aerosol. Tom qab ntawd cov khoom yuav tsum tau qhuav ua ntej qhov txheej txheem polymerization xaus.

Qhuav

Lub sij hawm ziab ntawm cov yas polymer nyob ntawm nws qhov tshiab, cov yas qub qhuav tau ntev lawm. Lwm yam cuam tshuam rau lub sijhawm polymerization yog hom tawv tawv thiab nws cov nyiaj hauv qhov sib xyaw, thaj chaw ntawm qhov chaw ua haujlwm thiab nws cov tuab, thiab qhov kub ib puag ncig. Polymerization thiab kho ntawm epoxy resin mus dhau cov theem hauv qab no:

• polymer polymer hauv cov kua sib xws ua kom puv tag nrho qhov chaw ntawm cov pwm lossis dav hlau ua haujlwm;
• qhov sib xws viscosity zoo ib yam li zib ntab thiab nws twb nyuaj rau nchuav cov ntawv kho nrog cov kua nplaum;
• siab ntom ntom ntom ntom, uas tsuas yog haum rau qhov gluing;
• qhov viscosity yog qhov zoo li ntawd thaum ib feem tau sib cais los ntawm qhov hnyav tag nrho, cov plume tau kos, uas nyuaj ua ntej peb lub qhov muag;
• epoxy zoo ib yam li roj hmab, nws tuaj yeem rub, sib tw thiab nyem;
• kev sib xyaw polymerized thiab dhau los ua tawv.

Tom qab ntawd, nws yog qhov yuav tsum tau tiv cov khoom rau 72 teev yam tsis siv, yog li cov polymerization nres tag, thiab cov khoom sib xyaw ua kom muaj zog thiab tawv. Cov txheej txheem kom qhuav tuaj yeem ua kom nrawm los ntawm kev ua kom sov hauv chav mus rau + 30 ° C. Nws yog qhov tsim nyog tias hauv huab cua txias, polymerization qeeb . Tam sim no, tshwj xeeb ua kom nrawm ntxiv tau tsim, thaum ntxiv, cov tawv tawv tawv dua, tab sis cov nyiaj no cuam tshuam rau pob tshab - cov khoom tom qab lawv siv muaj xim daj.

Txhawm rau cov epoxy cob kom nyob twj ywm pob tshab, nws tsis tas yuav ua kom nrawm nrawm cov txheej txheem polymerization hauv nws. Lub zog cua sov yuav tsum tau tso tawm ib txwm nyob ntawm qhov kub ntawm + 20 ° C, txwv tsis pub muaj kev pheej hmoo ntawm daj ntawm cov khoom lag luam.

Kev ruaj ntseg ntsuas

Txhawm rau tiv thaiv koj tus kheej thaum ua haujlwm nrog cov tshuaj lom neeg ntawm epoxy cob, koj yuav tsum ua raws ob peb txoj cai

• Kev tiv thaiv ntawm daim tawv nqaij Ua haujlwm nrog cov yas thiab tawv tawv yuav tsum tsuas yog nqa nrog hnab looj tes roj hmab. Thaum cov tshuaj nkag mus rau qhov chaw tawv nqaij qhib, ua rau khaus hnyav tshwm sim raws li kev ua xua. Yog tias epoxy lossis nws cov tawv tawv tuaj rau hauv kev sib cuag nrog daim tawv nqaij, tshem tawm cov tshuaj muaj pes tsawg leeg nrog swab ntub dej cawv. Tom ntej no, daim tawv nqaij raug ntxuav nrog xab npum thiab dej thiab smeared nrog roj av jelly lossis roj castor.
• Kev tiv thaiv qhov muag . Thaum tuav cov tshuaj, cov tshuaj lom neeg tuaj yeem ua rau lub qhov muag thiab ua rau kub hnyiab. Txhawm rau tiv thaiv qhov kev txhim kho ntawm cov xwm txheej, nws yog qhov yuav tsum tau hnav tsom iav kev nyab xeeb thaum ua haujlwm. Yog cov tshuaj nkag rau hauv koj lub qhov muag, yaug tam sim nrog cov dej ntws ntau. Yog tias qhov hnov mob hnyav ntxiv, koj yuav tsum tau mus ntsib kws kho mob.
• Kev tiv thaiv kev ua pa . Cov pa kub epoxy ua rau muaj kev phom sij rau kev noj qab haus huv. Ib qho ntxiv, tib neeg lub ntsws tuaj yeem raug puas tsuaj thaum sib tsoo ntawm cov tshuaj polymer kho. Txhawm rau tiv thaiv qhov no, koj yuav tsum siv lub tshuab ua pa. Rau kev nyab xeeb tuav cov epoxy, qhov cua nkag tau zoo los yog lub fume hood yuav tsum tau siv.

Epoxy dhau los ua qhov txaus ntshai tshwj xeeb thaum nws siv rau hauv qhov ntau thiab ntau thaj chaw. Hauv qhov no, nws raug txwv tsis pub ua haujlwm nrog tshuaj yam tsis muaj khoom siv tiv thaiv tus kheej.

Kev pom zoo

Cov lus qhia pov thawj ntawm cov kws tshaj lij kev paub epoxy yuav pab cov pib kawm cov hauv paus ntawm cov khoom siv tes ua thiab tiv thaiv kev ua yuam kev ib txwm muaj. Txhawm rau tsim cov khoom lag luam nrog qib siab ntawm qhov ua tau zoo thiab ntseeg tau, koj yuav pom ob peb lub tswv yim pab tau.

• Thaum ua kom sov cov tshuaj epoxy tuab hauv cov dej da dej, nws yog qhov yuav tsum tau ua kom ntseeg tau tias qhov kub tsis nce siab tshaj + 40 ° C thiab cov kua nplaum tsis rhaub, uas yuav ua rau txo qis hauv nws qhov zoo thiab cov khoom. Yog tias nws yog qhov yuav tsum tau pleev xim rau cov tshuaj polymer, tom qab ntawd cov xim qhuav tau siv rau lub hom phiaj no, uas, thaum ntxiv rau cov tshuaj, yuav tsum tau ua kom huv thiab sib tov sib xyaw kom txog thaum tau txais cov xim sib xws. Thaum siv chav da dej, koj yuav tsum ua kom ntseeg tau tias tsis muaj ib qho dej tso rau hauv cov tshuaj epoxy, txwv tsis pub cov khoom sib xyaw yuav pos huab thiab nws yuav tsis tuaj yeem rov qab tau.
• Tom qab cov tshuaj epoxy tau sib xyaw nrog cov tawv tawv, qhov sib xyaw ua ke yuav tsum tau siv tsis pub dhau 30-60 feeb. Cov seem tsis tuaj yeem cawm tau - lawv tsuas yog yuav tsum tau muab pov tseg, raws li lawv yuav polymerize. Txhawm rau kom tsis txhob nkim cov khoom kim, nws yog qhov yuav tsum tau ua tib zoo xam cov khoom siv ua ntej pib ua haujlwm.
• Txhawm rau kom tau txais qib siab ntawm cov nplaum, cov nplaim ntawm cov khoom ua haujlwm yuav tsum tau xuab zeb thiab zoo degreased. Yog tias kev ua haujlwm cuam tshuam nrog kev thov txheej txheej ntawm txheej, tom qab ntawd txhua txheej tom ntej tsis tau siv rau qhov ua kom qhuav tas li. Qhov kev nplaum no yuav tso cai rau txheej kom ruaj khov ua ke.
• Tom qab muab pov rau hauv pwm lossis tso rau hauv lub dav hlau, nws yuav tsum qhuav li 72 teev. Txhawm rau tiv thaiv txheej txheej saum toj kawg nkaus ntawm cov khoom los ntawm hmoov av lossis cov khoom me me, nws yog qhov tsim nyog los npog cov khoom nrog yas qhwv. Koj tuaj yeem siv lub hau loj tsis txhob siv zaj duab xis.
• Epoxy resin tsis tiv taus ultraviolet rays los ntawm lub hnub, nyob rau hauv uas nws tau txais xim daj. Txhawm rau khaws koj cov khoom ntawm lawv qib kev pom zoo, xaiv cov tshuaj polymer uas muaj cov tshuaj tshwj xeeb ntxiv rau hauv daim ntawv lim UV.

Thaum ua haujlwm nrog epoxy, koj yuav tsum nrhiav lub tiaj tiaj tiaj, kab rov tav . Txwv tsis pub, cov khoom lag luam tuaj yeem xaus nrog cov dej ntws tsis sib xws ntawm cov pawg polymer ntawm ib sab. Kev txawj ua haujlwm nrog epoxy tsuas yog los ntawm kev coj ua ib txwm muaj.

Koj yuav tsum tsis txhob npaj tam sim rau koj tus kheej loj thiab hnyav rau khoom rau kev ua haujlwm. Nws yog qhov zoo tshaj los pib kawm qhov txuj ci no ntawm cov khoom me, maj mam nce qhov nyuaj ntawm cov txheej txheem ua haujlwm.