Tej zaum cov nplaum nplaum uas siv ntau tshaj plaws yog dej-raws li nplaum nplaum. Nws yog siv yuav luag txhua qhov chaw: lawv muab cov hnab ntawv xa ntawv, cov khoom siv tawv thiab ntau yam ntaub, daim ntawv lo lub raj mis thiab tsim cov ntawv nplaum, cov nplaum parquet thiab ntau hom yas, phab ntsa ntub dej, laminate thiab ntau ntxiv.
yam ntxwv ntawm dej-raws li nplaum
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov kua nplaum no yog qhov yooj yim heev: dej evaporates ib txwm muaj, yog li ua kom cov adhesion ntawm cov khoom muaj pes tsawg leeg, vim qhov no, cov ntaub ntawv txuas nrog ruaj ntseg. Txhawm rau muab cov ntaub ntawv kom nruj raws li qhov ua tau, nws yog qhov tsim nyog kom cov evaporation ntawm dej tshwm sim tag nrho. Txhawm rau ua qhov no, tom qab siv cov kua nplaum rau saum npoo, nws yuav tsum tau tso tseg ib ntus. Lub sij hawm txawv ntawm ob peb feeb mus rau ob peb feeb thiab yuav nyob ntawm seb cov tshuaj muaj pes tsawg leeg ntawm cov nplaum.
Qee lub sij hawm cov nplaum nplaum dej yuav tsum tau nruj adhesion, vim nws tsis pib muaj qhov siabadhesion thiab yog siv los khi cov dej tsis sib haum thiab kub kub uas tsis tas yuav tsum muaj lub zog siab. Xws li cov nplaum muaj pes tsawg leeg yog ib puag ncig zoo, vim nws tsis muaj ntau yam tshuaj, piv txwv li, hnyav hnyav. Tab sis qhov no kuj tuaj yeem suav tias yog qhov tsis zoo, vim tias nws yuav siv sij hawm ntev heev kom qhuav thiab ua tiav siab adhesion.
Zoo li lwm yam khoom, cov nplaum tau piav qhia muaj nws qhov zoo thiab qhov tsis zoo thiab, txawm tias qhov no, yog qhov nrov heev. Muaj ntau ntau yam kev xaiv nyob rau hauv kev ua lag luam niaj hnub no, ntawm cov uas koj muaj peev xwm xaiv qhov zoo tshaj plaws dej-raws li acrylic nplaum. Xws li ib tug muaj pes tsawg leeg muaj tej yam nta. Dej-raws li acrylic nplaum yog raws li hluavtaws fiber.
Nyob ntawm cov nplaum
Cov kua nplaum dej los ntawm ntau yam:
YPolyvinyl acetate (PVA)
suav tias yog feem ntau. Qhov no yog ib tug dawb ncua kev kawm ntawv nrog crushed polyvinyl acetate nyob rau hauv muaj pes tsawg leeg. Vim li no thiaj hu ua kua nplaum. Nws kuj muaj dej, tab sis nws cov ntsiab lus ntawm no yog me me - tsuas yog 5%. PVA nplaum cov ntaub ntawv ntxeem tau zoo: ntoo thiab cov ntaub ntawv raws li nws, drywall, polystyrene, thiab lwm yam. Cov chaw tsim tshuaj paus cog lus frost tsis kam mus txog 4 cycles. Cov kua nplaum tsis tso cov khoom tsis zoo rau hauv ib puag ncig, tsis tawg thiab siv tau yooj yim heev. PVA muab faib ua kev tsim kho thiab universal.
YPolyacrylate
Cov nplaum no muaj cov yeeb yaj kiab elastic. Nws yog feem ntau siv rau sab nraum zoov tshaj tawm, rau kev siv rau kev thauj mus los, kev tshaj tawm raustands, showcases, thiab lwm yam. Yog tias cov kua nplaum zoo li no tau siv hauv tsev, tom qab ntawd cov chaw tsim khoom tsis txwv nws lub txee lub neej, vim tias nws tsis raug cuam tshuam rau ib puag ncig kev cuam tshuam, xws li kev hloov pauv ntawm qhov kub thiab txias, av noo, thiab lwm yam. Polyacrylate kua nplaum txawv ntawm nws cov khoom thiab cov khoom. Nws yog kub-resistant, elastic, mos, nrog siab adhesion, resistant rau ya raws, ntau yam roj, ntsev, thiab tsis muaj zog acids. Qhov tsim nyog muaj pes tsawg leeg raug xaiv raws li cov khoom siv thiab cov peev txheej.
Cia
hom dej-raws li nplaum nplaum no muaj daim ntawv thov dav heev. Nws muaj txaus adhesion thiab elasticity, uas tso cai rau nws kom ruaj khov cov ntaub ntawv ntxeem tau: cork, PVC, laminate, ntoo, thiab lwm yam. Nws yog siv nyob rau hauv ib tug niaj hnub nyias txheej nrog ib tug txhuam los yog tshuaj tsuag. Pre-glued nto yuav tsum tau degreased thiab ntxuav ntawm av thiab hmoov av. Ob qhov chaw yog smeared nrog cov nplaum nplaum thiab qhuav me ntsis (5-20 feeb). Tom qab ntawd, cov khoom yog nruj nreem nias rau ib leeg, thiab nws yog ib qho tseem ceeb kom pib nyem cov khoom kom muaj zog. Qhov siab tshaj plaws adhesion tau tiav hauv 24 teev.
Latex kua nplaum
Nws sib xyaw ob yam - cov roj hmab dag hauv cov hmoov hmoov thiab dej. Qhov kev ncua no ruaj khov txuas cov ntaub ntawv ntxeem tau: ua npuas ncauj yas, phab ntsa ntub dej, chipboard, thiab lwm yam. Latex kua nplaum nkag mus rau hauv cov txheej txheem ntxeem tau ntawm cov khoom, txhim kho adhesion ntawm qhov chaw, ua kom zoo thiab elasticity ntawm seam.
Dej-dispersion nplaum
Nws yog raws li kev sib cais ntawm PVA thiab dej. Cov kua nplaum no tsis muaj tshuaj lom, tsis muajtsw, yog li nws yog feem ntau siv nyob rau hauv cov cheeb tsam. Tab sis nws kuj muaj nws qhov tsis zoo - nws qhuav rau lub sijhawm ntev (feem ntau 4-6 hnub). Zoo kawg nkaus glues noo-resistant ntoo hom, xws li ntoo qhib. Tus nqi ntawm no yuav nyob ntawm seb tus nqi dej hauv qhov muaj pes tsawg leeg: tus nqi qis dua yog tias muaj dej ntau, tab sis qhov ntsuas kuj tseem nqaim.
kua nplaum rau potali
Potal yog hu ua cov ntawv nyias nyias. Nrog rau cov khoom no, gypsum stucco, ceramics, yas, cardboard, hlau, ntoo, iav yog gilded thiab silvered. Txhawm rau ua cov txheej txheem no kom zoo, nws yog ib qho tseem ceeb uas yuav tau xaiv cov kua nplaum zoo.
siv cov kua nplaum uas siv dej ntau heev. Cov tshuaj no kuj muaj nws tus kheej ntau yam. Muaj cov kua nplaum dawb uas discolors tom qab ziab. Nto tsis muaj primer yog dai kom zoo nkauj nrog muab tshuaj txhuam. Rau kev ua haujlwm zoo nkauj, siv cov kua nplaum rau hauv lub raj, xaum lossis cov cim.
daim tawv nqaij
Dej-raws li tawv nplaum yuav txawv. PVA, tiv tauj, thiab latex yog haum ntawm no. Feem ntau, hauv kev lag luam tawv thiab khau, nws yog latex kua nplaum uas yog siv - ib hom roj hmab muaj pes tsawg leeg, uas yog, kev daws teeb meem nrog cov organic hauv paus, los ntawm thiab loj muaj cov dej thiab roj hmab diluted hauv ammonia.
Latex kua nplaum nrog hluavtaws roj hmab yog siv rau gluing tawv thiab cov ntaub ntawv tawv. Raws li ib tug thickener, ib tug polymer soluble nyob rau hauv lub oligomer thiab sodium polyacrylate yog siv, uas yog ib tug zoo li wax mass.
Howkoj pom, cov kua nplaum dej tuaj yeem sib txawv kiag li, thiab xaiv nws nyob ntawm cov khoom siv thiab qhov xwm txheej tshwj xeeb.
