Zinc oxide: daim ntawv thov, characterization thiab dyeing hom kev kawm

Zinc dawb - yog inorganic pigments raws li zinc oxide, uas nyob rau hauv ua ke nrog nrog ntau yam binders (qhuav roj, zaub roj) tsim dawb xim. Ob peb cov neeg paub txog tus yam ntxwv thiab nta ntawm zinc oxide, ces peb yuav nyob rau hauv qhov tsab xov xwm yuav kam nrog cov teeb meem no.

yam ntxwv ntawm

Nyob rau hauv cov ntshiab daim ntawv, cov khoom muaj ib tug meej dawb nrog ib tug me ntsis xiavlus zas. Dawb ntxhiab, thiab muaj peev xwm yuav tov zoo nrog ib tug aqueous alkali tov thiab ammonia. Lawv tsis txhob ua txhaum down thiab tsis deform nyob rau hauv tus ntawm kab mob thiab cov kab mob. Vim hais tias lawv yuav tau mus nqus dej, lawv yuav tsum tau muab cia rau hauv kaw ntim.

Nyob rau lub zoo zog kuj muaj xws li xws yam li:

• tsawg-toxicity;
• kuj mus tshav ntuj;
• tsis ntawm daim ntawv thov;
• Compatibility nrog tag nrho cov hom ntawm cov xim tsev;
• weathering kuj.

Cuaj kaum, lawv muaj tsis zoo zog, uas muaj xws li ntes, cov neeg pluag kev pab them nqi thiab lub peev xwm los nqus loj nyiaj ntawm cov roj.

Thaum siv nyob rau hauv lub kos duab xws zog Whiting li cov brittleness thiab muaj peev xwm los npog qhov khoob, ua rau tus qauv sau ntawv nrog lawv cov kev siv, nws yog tsis yooj yim sua rau quav. Thiab tseem yuav tsum tau mus soj ntsuam cov nro ntawm lub canvas, uas hloov nrog ua av noo. Nrog nws dawb compression los yog nro tej zaum yuav crumble.

Hom ntawm zinc oxide

Whitewash zinc raug muab faib ua ob hom: BTS0 thiab BC1.

Cov khoom pab them los ntawm lub cim BTS0, siv nyob rau hauv qhov siv thiab ua cov xim tsev, dag tawv thiab roj hmab cov khoom. Tsis tas li ntawd, nws yog ntxiv rau cov MAAs ntxhib no los txhuam thiab formulations rau kev kho hniav.

Dawb BC1 hom mas siv rau qhov siv thiab asbestos-xis mas thiab xim, uas yog siv rau cov sab hauv thiab sab nraud kom zoo nkauj thaj chaw, yam tsawg kawg - rau zus tau tej cov dag tawv thiab roj hmab tib tug.

daim ntawv thov

Nyob rau hauv tas li ntawd, muaj lwm qhov chaw nyob qhov twg dawb zinc siv. Lawv daim ntawv thov yog nyob rau hauv cov tshuaj. Lawv yog ib tug ntawm lub Cheebtsam ntawm tej yam antiseptic tshuaj pleev thiab cov hmoov. Lawv kuj siv rau qhov siv thiab ua yas, roj hmab, daim ntawv thiab iav.

Nyias, zinc dawb peev xwm yuav txawv (dawb xim) manufactured nyob rau hauv lub hauv paus ntawm zinc oxide qib A. Cov xim yog muab faib ua ob peb hom, tsim los rau sab nraum zoov thiab hauv tsev ntawv. Cov no hom ntawm cov xim muaj hlau yog feem ntau rau sab hauv kho kom zoo nkauj siv dawb zinc MA 22, uas yog yus muaj los ntawm kev kawm ntawv siab thiab paub hluav taws kev ruaj ntseg.

Nyob rau hauv tas li ntawd niaj hnub no ntawm zinc oxide ua siv anticorrosion xim. Dawb ntxiv mus rau lub compositions ntawm fillers thiab ntau yam adhesives, thiab kuj siv nyob rau hauv qhov siv thiab ua ceramics.

Nws yog paub tias thaum lub sij hawm kho zinc dawb, linseed roj diluted mus rau ib tug xim taub hau, tej zaum yuav impregnated linen strands, uas yog siv raws li cov ntsaws ruaj ruaj nyob rau hauv threaded sib txuas kav dej.

Rau paintings tsim ntshiab zinc oxide, muaj raws ntawm heev zoo hais ntawm zinc oxide, muaj tsis muaj ib co kua nplaum ntawm cov iron thiab cov hlau lead oxides. Lawv translucent thiab txias suab txawv li daim ntawv thov daim ntawv inelastic zaj duab xis. Lawv yog siv nyob rau hauv tag nrho cov hom ntawm cov kos duab, raws li lawv yog heev resistant mus rau lub teeb xim, uas yog tsis raug hloov, txawm nyob rau hauv cov inks uas muaj sulfur. Lawv feem ntau yog tshuaj dawb tso vermilion thiab cadmium ntxiv nyob rau hauv thiaj li yuav txhim kho nws zoo.

Roj zinc dawb

Cov khoom no yog ib tug zinc oxide uas erased los yog linseed roj. Lawv feem ntau xa mus rau raws li cov roj thiab siv los tiv thaiv hlau lug ntawm xeb, thiab kuj rau coloring ntoo thiab plaster chaw. Thiab lawv yog tsim rau sab hauv thiab sab nrauv siv.

Zinc dawb roj muaj zoo qho hwj chim, uas yog, thaum ua ntawv thov mus rau qhov chaw lawv yog cov tag nkaum cov xim ntawm lub yav tas los thov txheej. Ntxiv mus, tom qab txheej uas lawv tsim corrosion resistant txheej nrog siab dej kuj thiab pa permeability.

painting txoj kev

Zinc dawb yog siv rau cov txheej plaster, hlau thiab ntoo chaw.

Tej hauj lwm ua los ntawm hnav hnab looj tes, thiab thaum lub sij hawm lawv siv thiab tom qab qhov kawg ntawm lub chav tsev nws yog tsim nyog los muab qhib.

Ua ntej cov tswv yim nrog cov xim muaj hlau, whitewash, yog gustotertyh hmoov dilute ntuj kom qhuav roj, qhov feem pua ntawm cov uas yuav tsum tau 18-25% ntawm tag nrho cov loj ntawm dawb thiab heev kom huv si mixed. Yog hais tias nws yog roj xim, ces yog hais tias tsim nyog nws ntxiv dawb ntsuj plig los yog Turpentine.

Lub nto yuav tsum pre-npaj:

• xub thawj nws yog ntxuav ntawm av, roj, hmoov, tej kob qub (yog tias yuav tsum tau). Qhov no yog ua nrog ib tug duav;
• ces PuTTY obscure tej kab nrib pleb thiab to;
• Tom qab nws dries ib tug ua hauj lwm nto polished siv ntwav txhuam ntoo;
• yog ces thov mus rau lub primer;
• Tom qab lub primer tau qhuav mus kom muaj xim.

Yuav kom txo tau cov kev noj dawb lead, linseed roj yog pom zoo kom npog qhov chaw.

Dawb yog muaj ntaub ntawv rau ib tug tus qhuav nto siv ib cov xim txhuam , tsuag rab phom los yog ib tug menyuam:

• txhuam siv rau dyeing zoo hais thiab me me chaw;
• rau cov loj pab hauv cheeb tsam siv ib tug txhuam hniav los yog cov menyuam;
• ntau npaum painting txheej txheem kis tau los ntawm cov tshuaj tsuag rab phom. Qhov no txoj kev yuav ua rau nws tau los mus tsim ib tug txawm txheej thiab kho tsis cuag qhov chaw.

Cov nab npawb ntawm cov khaubncaws sab nraud povtseg yuav tsum yog 1 los yog 2 nyob ntawm cov yam tshwm sim. Txhua txheej feem ntau dries teev yog hais tias tus chav tsev kub yog tsis qis tshaj li + 20º C. Tau ntawm dawb ib muaj ib tug txheej yog hais txog 170-200 g ib 1 sq. m.

packing

Ntau cov kev xaiv yog siv rau lub ntim. Zinc oxide yuav fej nyob rau hauv lub hnab (lub hnab yas los yog ntawv), yas los yog ntoo drums, cov duab los qhia, plywood los tej thawv nrog ib tug liner ua los ntawm polyethylene, daim ntawv los yog polyethylene hnab, raws li zoo raws li tshwj xeeb mos pov tseg ntim.

Thauj thiab warehouse

Thauj khoom tau tso cai los ntawm tag nrho cov hom ntawm them thauj, kos yog ua tau tsuas yog cov dawb, tau ntim rau hauv tshwj xeeb mos ntim - lawv muaj peev xwm yuav thauj nyob rau hauv lub tsheb qhib thiab muab khaws cia nraum zoov.

Raws li rau zinc oxide, fej nyob rau hauv lwm yam ntim, lawv yuav tsum tau muab cia rau hauv kaw warehouses, nrog kub xws li los ntawm -40 ° C rau 40 ° C. Lawv muab tso rau hauv ntoo pallets sib tsub sib nias ntawm mus txog 3 m siab.

Txee lub neej - 1 xyoo.