Cov xim pleev xim rau cov phab ntsa: cov khoom, kev siv tshuab

Thaum pib kho vaj tse hauv lawv lub tsev, tus tswv yuav sim xav txog txhua yam ntawm kev ua haujlwm tom ntej thiab tuaj tos cov ntaub ntawv. Rau sab nrauv yuav siv tau cov ntaub ntsa khoom, vuas, pob zeb, tab sis feem ntau tsis ntev los no siv xim rau phab ntsa. Cov khoom qoob loo, vim muaj ntau cov khoom zoo, sawv tawm tsam tom qab ntawm lwm yam kev sib txuas ntawm cov xim, tau txais ntau dua los ntawm tus neeg tau txais kev pab. Vim li no, hauv tsab xov xwm hnub no peb yuav ua tib zoo saib xyuas cov xim latex, peb yuav soj ntsuam lawv cov hom, cov khoom thiab cov cuab yeej siv ntawm daim ntawv thov.

Tshuaj pleev xim dab tsi?

Cov txheej txheem cov kua dej yog cov xim dej-dispersion, nrog rau qhov sib ntxiv ntawm cov khoom ntawm pob zeb, uas muab rau lawv cov kev tshwj xeeb. Kev sib xyaw ua ke ntawm latex thiab acrylic pub los txhim kho cov kev coj ua haujlwm ntawm cov xim sib txuas thiab ua kom nthuav dav rau lawv daim ntawv thov. Coatings ntawm no yog ua rau kev ua haujlwm sab nraud thiab sab hauv. Cov ntaub ntawv ntawm lawv siv yog feem ntau qhia nyob rau hauv pob.

Xim rau phab ntsa (yas looj) yog tsim tshwj xeeb tshaj plaws hauv cov xim dawb, yog li ua kom pom qhov ntxoov ntxoo, koj yuav tsum ntxiv ib pob tinting. Cov kab sau tau tuaj yeem pleev xim rau txhua qhov chaw hauv qab: cib, ua vaj tse, npog cov ntawv pov thawj los yog plaster.

Cov nta ntawm coatings le ligx

Cov khoom qoob loo tau txais cov koob meej vim muaj ntau qhov zoo. Namely:

• tsis muaj ntxhiab ntse;

• kev sib luag ntawm ecological;

• kev muaj peev xwm kis tau los ntawm huab cua;

• cov yam ntxwv zoo thermal rwb thaiv tsev;

• tsis kam hloov kub;

• kev ruaj ntseg hluav taws;

• ploj ntawm qhov dej los tau;

• ua kom qhuav sai;

• tsis kam ua rau noo noo;

• muaj zog thiab ua haujlwm tsis zoo.

Txawm li cas los xij, ntxiv rau cov yam ntxwv zoo, nws yog tsim nyog hais txog ob peb qhov teeb meem uas muaj cov phab ntsa ntawm no. Cov txheej txheem qoob loo tsis tuaj yeem ua rau lub ntsej muag thiab cov tones, thiab kuj yog ib qho zoo heev rau txoj kev loj hlob ntawm cov kab mob thiab cov hu ua fungi. Yuav kom tiv thaiv tau qhov pwm ntawm pwm, nws yog ib qhov tsim nyog los kho qhov chaw nrog primer ua ntej txheej.

Scope ntawm daim ntawv thov

Kev muab cov xim tso rau ib qho chaw lig yuav hu ua universal. Lawv zoo haum raws li yav tas los kos xim, thiab nyob ntawm cov chaw huv. Lub Scope ntawm lawv cov ntawv thov yog nyob ntawm qhov kev cais thiab kev ua haujlwm ntawm cov dispersion. Yog li, rau sab nraud tej hauj lwm, acrylic-silicone coatings uas muaj kev siv tshuaj tua kab mob yog siv. Yam zoo li no yog qhov ua rau cov neeg ua haujlwm hnyav, tsis kub hnyiab los ntawm kev tshav ntuj thiab tsis muaj kev ntshai ntawm ya raws.

Cov xim pleev xim rau sab hauv tej hauj lwm muaj 3 hom: polyvinyl acetate, butadiene-styrene thiab acrylic compounds. Tom ntej no, xav txog cov yam ntxwv thiab lub hom phiaj ntawm txhua hom kev qhia ntxiv.

Polyvinyl acetate

Cov neeg uas lawv siv los hu rau dej-raws li xim tsev. Lub hauv paus ntawm cov khoom no yog cov kua nplaum PVA li niaj zaus. Nyob rau hauv cov dej-dispersion coatings tsis muaj cov kuab tshuaj, yog li lawv tau xyaum tsis muaj tsw. Dej dispersions yog characterized los ntawm cov nplaum nplaum nplaum thiab qhov yooj yim ntawm kev lag luam. Txog thaum lub sijhawm ua kom tiav, cov xim muaj xim yooj yim ntawm lub tes thiab qhov cuab yeej ua haujlwm. Cov yam ntxwv zoo muaj xws li cov nqi qis hauv dej, tab sis nws siv tsis tau txhua qhov.

Xyaum ua ke qhia tau hais tias txawm tias tom qab ua tiav ziab tas lawm, cov xim muaj xim nyhav. Yog tias koj thov khaub ncaws rau ib daim duab pleev xim, nws yuav tig dawb. Nws kuj tseem yuav tsum tau sau tseg tias qhov txheej no yog nquag rau yaug, yog li kos duab nrog lawv lub facade los yog phab ntsa hauv chav dej yog ntseeg tau zoo.

Feem ntau hom no yog siv rau cov khoom ntsuas hauv cov xim kom sov.

Butadiene-styrene

Butadiene-styrene compounds tau tsim txhua yam hauv tib lub hauv paus dej, tab sis tsis zoo li yav dhau los cov tsiaj, lawv muaj zog noo thiab hnav tsis kam. Qhov no ua rau lawv siv nyob rau txhua qhov chaw hauv qhov chaw. Lub ntsiab lus tseem ceeb ntawm cov emulsions ligxeeb ntawm hom no yog tias qeeb ntawm ultraviolet rays lawv poob lawv ci ci thiab xim xim. Txawm li cas los xij, cov cuab yeej no tsis cuam tshuam nrog lawv kev siv rau hauv kev kho kom zoo nkauj sab hauv. Qhov zoo tshaj plaws rau tej xim ntawm lub chav ua noj, txoj kev hauv tsev, cov chaw ntim khoom, chav pw thiab lwm chav tsaus nti.

Acrylic

Acrylic latex xim rau kev ua haujlwm sab nrauv yog suav tias yog cov khoom zoo tshaj plaws ntawm tag nrho cov kev xaiv saum toj no. Nws yog siv nyob rau hauv rooj plaub uas tsimnyog los tsim kom muaj lub cev, ruaj khov thiab muaj kuab-resistant lo. Cov dlej xim pleev xim rau cov duab zoo ib yam los ua cov pa tsis tshua muaj kab mob thiab muaj kev tiv thaiv ntxiv ntawm kev txhuam. Feem ntau, acrylic xim yog siv hauv ob txheej, thaum lub txheej txheej ua rau pom tau tias yog elasticity thiab muaj peev xwm zais me me kab nrib pleb ntawm phab ntsa. Nrog rau cov txheej no, koj tuaj yeem ua kom zoo phim lub phab ntsa hauv chav dej thiab chav ua noj, vim nws muaj peev xwm tiv thaiv txog 5000 txoj kev mus los.

Kev xaiv ntawm cov xim muaj pes tsawg leeg

Thaum xaiv ib tus neeg sawv cev rau xim, nws yuav tsum them nyiaj rau tsis yog xim xwb, tab sis kuj tseem ceeb xws li: hnav tsis ua hauj lwm, glossiness, noo noo thiab kis mus rau lub zog. Cov qoob loo ntawm cov hnab yas muaj ib yam ntawm 6 yam ua tau zoo ntawm gloss, uas tau teev tseg rau hauv lub txhab nyiaj:

• Qhov ntsuas 11-25, lossis "PM" txhais tau hais tias cov xim muaj xim yog semi-matt;

• tus nqi ntawm 30-59, los yog "PG" - yog hais txog qhov sib xyaw nrog ib nrab hnub;

• cim rau 6-10, los yog "M" - qhia tias qhov kev cais kuj yog tag nrho;

• Qhov ntsuas yog 60-89, lossis "G" - glossy;

• 90-100, los yog "SG" - hais txog qhov ci ntsa iab ntawm cov khoom;

• 0-5, los yog "CM" - qhia hais tias qhov no yog xim pleev xim rau tag nrho.

Qhov muaj pes tsawg leeg nrog rau theem siab tshaj plaws pub rau koj los tsim tsim daim iav zoo li daim iav, yog li siv nws yuav tsum yog qhov tseeb. Matte txheej yog xam ntau yam.

Hnav kev tsis haum thiab tsis kam ua kom ya raws tsis muaj dab tsi tseem ceeb. Yog hais tias koj xav xim nyob rau hauv chav ua noj, ces koj yuav tsum xaiv cov khoom nrog tus nqi siab tshaj plaws ntawm kev rhuav tshem (ntau dua 3000).

Thixotropy qhia tau sai npaum li cas cov xim pib qhuav tom qab daim ntawv thov, thiab qhov qhia tau hais tias qhov kev kwv yees kwv yees ntawm tus neeg sawv cev thaum npog cov hniav.

Thaum nriav cov thev ntawm cov xim, tsis txhob hnov qab mus yuav cov xim rau menyuam. Rau cov khoom yas yuav tsum xaiv cov cuab yeej pleev xim nrog cov khoom loj.

Kev npaj deg

Cov cuab yeej siv cov xim latex xim muaj xws li kev npaj ua ntej. Nws yog executed nyob rau hauv cov nram qab no thiaj li:

• Ua ntej tshaj, cov phab ntsa yuav tsum tau muab ntxuav los ntawm hmoov av. Qhov no yuav ua tau los ntawm ob chav wetting lawv nrog dej.

• Tshem cov plaster qub, cov kua xaum qhuav los yog lwm cov coatings nrog lub tshuab raj.

• Yog tias koj xav tau, koj tuaj yeem kho cov phab ntsa nrog cov pob txha pob txha pob txha uas ua kom tsis txhob tawg ntawm lub substrate.

• Siv qhov tob tob rau hauv.

• Yog hais tias muaj teeb meem ntawm qhov saum npoo av, lawv raug muab tshem tawm nrog lub lag luam thiab lub dav dav dav.

• Cov chaw tsis sib xws yog sib npaug thiab rov qab ua dua tshiab.

Dyeing tshuab

1. Ua ntej pib ua haujlwm, phab ntsa xim (latex) yog muab dej txias los ua ke.

2. Thov thawj txheej, siv 1 litre dej rau txhua 5-10 square metres ntawm phab ntsa. Rau tag nrho cov staining tom ntej, yuav tsum tau siv dej tsawg dua. Seb tau tus nqi pes tsawg, tuaj yeem tau kawm txog cov lus pom zoo ntawm lub khw, sau rau ntawm pob.

3. Rau cov phab ntsa, koj yuav siv tau ib tug menyuam pleev xim, txhuam los yog tsuag.

4. Thaum nrawm xim nyob rau ob peb txheej, txhua lub txheej tshiab yuav tsum tau muab sib dhos rau yav dhau los. Qhov kawg painting yuav tsum tau nqa tawm ncaj qha rau hauv kev coj ntawm lub qhov rais.

5. Cov menyuam yob yob tawm rau ntawm ib qho xim tshwj xeeb xim los yog ib daig ntawv.

6. Tag nrho cov ntom raug pom zoo kom muab coated tib lub sij hawm, txwv tsis pub tsis sib haum xeeb rau ntawm cov pob qij txha ntawm cov xim.

Nyob rau hauv dav dav, cov cuab yeej ntawm kev siv latex dispersions txawv me me los ntawm cov txheej txheem ntawm withstaining nrog lwm lub tebchaw. Txawm li cas los xij, los ua kom zoo nkauj, cov xim lo xim thiab cov xim ruaj khov, ua kom qhov qub txav ntawm lub hauv paus, tsuas yog cov xim latex xwb. Tus nqi ntawm cov khoom attracts ib tug loj tus naj npawb ntawm tub lag luam, ua nws nce nrov. Yog li, tus nqi ntawm cov dej tsis sib tov nws txawv ntawm 1500 mus rau 2000 raus ib 5 liters. Cov kev xaiv npaj rau cov chav qhuav yog pheej yig dua. Tsis tas li ntawd, cov txheej uas tau txais yuav kav ntev ntau xyoo yog tsis muaj kev kho ntxiv.