Hauv thawj ib nrab ntawm 40s ntawm lub xyoo pua XX, hauv kev tshawb nrhiav cov khoom siv hloov hluavtaws rau cov roj hmab, ib qho organosilicon polymer nrog cov yam ntxwv zoo tau tsim. Cov khoom ua si ua los ntawm nws, hu ua hendgum, lossis cov pos hniav ntawm tes, tuaj yeem ua rau tawv nqaij thiab ncav. Ib lub pob ntawm cov khoom siv no kis tau thoob plaws hauv rooj hauv pas dej, tab sis bounces tawm ntawm phab ntsa yog tias muab pov tseg. Nyob hauv tsev, koj tuaj yeem ua cov khoom sib xws hauv cov yam ntxwv rau cov polymer los ntawm kev hendgum yog tsim.
Nws yog qhov tsim nyog
- Rau thawj txoj kev:
- - PVA kua nplaum;
- - sodium tetraborate hauv glycerin (borax hauv glycerin);
- - zas.
- Rau txoj kev thib ob:
- - silicate kua nplaum;
- - 96% dej cawv ethyl.
Cov Lus Qhia
Kauj ruam 1
Ib qho ntawm cov ntawv qhia xuas tes ua kom nto moo tshaj plaws yog kev siv cov PVA kua nplaum thiab borax hauv glycerin. Ncuav ib pob ntawm PVA ntawv sau kua nplaum rau hauv lub khob lossis iav. Yog tias koj xav tau cov pos hniav xim dawb rau koj txhais tes, kov cov kua nplaum nrog gouache me ntsis. Sib xyaw PVA thiab zas xim nrog cov pas ntoo. Xuas tes tsis tau ua dua yuav dawb.
Kauj ruam 2
Ncuav me me ntawm sodium tetraborate hauv glycerin rau hauv ib lub taub ntim. Cov kua no, uas muaj antiseptic lub zog, tuaj yeem nrhiav tau ntawm lub tsev muag tshuaj. Qhov sib xws ntawm cov pos hniav yav tom ntej nyob ntawm tus nqi ntawm cov tshuaj tua kab mob: cov sodium tetraborate ntau ntxiv rau cov kua nplaum, cov kua ua kua ntau dua yuav tshwm sim.
Kauj ruam 3
Siv cov pas ntoo kom muab cov tshuaj sodium tetraborate nrog kua nplaum. Tom qab ob peb feeb, qhov tshwm sim loj yuav pib ua tuab. Qhwv nws ncig cov neeg nplawm thiab tshem nws tawm los ntawm txoj kab ntim khoom.
Kauj ruam 4
Yog tias cov tshuaj tau ua kom dhau los ua ntej koj tau muaj sijhawm los ua kom tiav cov khoom sib txuas tag nrho, hloov mus rau yav tom ntej hendgam rau hauv ib lub hnab yas thiab zawm nws nrog koj txhais tes. Cov zom khaub noom ua raws li daim ntawv qhia no rau tes tsis tawm qhov quav, dawb do cais tawm ntawm cov khoom uas nws tau dag, thiab lub npas dov tawm los ntawm nws kis tau rau txhua qhov. Txawm li cas los xij, tsis zoo li cov khoom ua si qub, cov pos hniav ua tiav tsis ruaj.
Kauj ruam 5
Cov tshuaj yaj phom tuaj yeem tsim los ntawm silicate kua nplaum thiab ethyl cawv. Ncuav cov kua nplaum rau hauv lub thoob ntim thiab ntxiv tsis ntau tshaj li ib feem tsib ntawm cov dej cawv siv. Los ntawm nchuav hauv cawv ntau dhau, koj yuav tam sim ntawd tau txais cov khoom ua tau zoo, lub cev tsis zoo, thiab yog li ntawd ntxiv cov tshuaj ntxiv thib ob ntawm qhov poob.
Kauj Ruam 6
Thaum cov kua hauv lub ntim pib pib huab, do nws nrog daim txiag ntoo. Dawb flakes yuav pib tshwm sim hauv kev daws teeb meem. Do cov kua nplaum thiab haus cawv kom zoo thiab tos kom txog thaum yuav luag txhua qhov sib tov. Tshem tawm cov plaub ya ri tawm hauv lub thawv ntim thiab tshem cov kua seem ntawm lawv los ntawm nyem cov tshuaj tawm. Xws li rab yaj phom yuav khaws nws cov khoom rau ob peb teev.
