Redispersible looj-hmoov av redispersible hmoov, uas yog copolymer ntawm ethylene thiab vinyl acetate, nrog polyvinyl cawv ua ib tug tiv thaiv kev tiv thaiv. Yog li ntawd, redispersible looj hmoov yog qhov nrov heev hauv kev tsim kho kev lag luam, thiab kev siv ua haujlwm tsis zoo vim tsis tsim nyog xaiv ntawm redispersible looj hmoov. Nws yog ib qho tseem ceeb kom xaiv cov hmoov liab redispersible looj hmoov, yog li yuav ua li cas thiaj txheeb xyuas thiab xaiv recispersible looj hmoov?
Txoj kev rau kev txheeb xyuas Redispersible looj hmoov
Sib tov cov refispersible looj hmoov thiab dej ntawm qhov sib piv ntawm 1: 5, do tusyees thiab cia nws sawv ntsug li 5 feeb, tom qab ntawd soj ntsuam cov av hauv qab. Feem ntau, cov sediment tsawg dua, qhov zoo dua qhov zoo ntawm redispersible looj hmoov.
Sib tov cov refispersible looj hmoov thiab dej ntawm qhov sib piv ntawm 1: 2, do tusyees ib lub iav huv si, muab cov iav kom huv si, muab cov iav tso rau hauv qhov cua thiab muaj duab ntxoo, thiab tag nrho Qhuav thaum kawg, tev tawm ntawm cov txheej ntawm lub khob thiab saib cov yeeb yaj kiab polymer. Qhov ntau pob tshab nws yog, qhov zoo dua qhov zoo ntawm cov hmoov looj xwb. Tom qab ntawd rub cov yeeb yaj kiab muaj ntsis. Qhov zoo dua elasticity, qhov zoo dua qhov zoo. Txiav cov zaj duab xis mus rau hauv ib daim hlab soak hauv dej, saib xyuas tom qab 1 hnub, qhov zoo ntawm tsawg yaj yog qhov zoo dua.
Coj tus nqi tsim nyog ntawm cov hmoov yas looj thiab hnyav nws. Tom qab hnyav, muab tso rau hauv ib lub taub ntim hlau, kub nws txog li 500 degrees, hlawv nws ntawm qhov kub ntawm 500 degrees, thiab hnyav nws tom qab txias. Lub ntais qhov hnyav, qhov zoo dua qhov zoo.
Ntsuam xyuas nrog kua nplaum ntawm Carton Board lossis Veneer. Nqa ob lub laub me me lossis cov ntoo ntoo nyias nyias ntawm qhov sib npaug sib luag, thiab siv cov kua nplaum ntawm lub interface ntawm cov qauv. Tom qab 30 feeb ntawm siab ntawm cov khoom, coj nws tawm rau kev kuaj xyuas. Yog tias nws tuaj yeem raug sib khi khov kho thiab 100% ntawm lub interface raug rhuav tshem, nws yog qhov khoom zoo yas cov khoom zoo. Yog hais tias lub interface tsuas tuaj yeem rhuav tshem, nws txhais tau tias lub zog ntawm lub zog ntawm cov hmoov yas tsis zoo thiab zoo yog qhov tsis tsim nyog. Yog tias lub interface yog lawm thiab tsis puas, nws txhais tau tias nws yog cov ua tsis tau zoo thiab cuav.
Yuav ua li cas xaiv dispersible latas hmoov
Cov iav hloov cua kub ntawm redispersible looj hmoov. Lub iav hloov cua kub yog qhov taw qhia tseem ceeb ntawm lub zog lub cev ntawm cov redispersible looj hmoov. Rau ib qho khoom lag luam tshwj xeeb, kev xaiv tsim nyog ntawm lub khob hloov pauv ntawm qhov yooj yim ntawm cov khoom lag luam thiab zam teeb meem xws li kev tawg.
Kev daws teeb meem.
Tsis tshua muaj zaj duab xis raws li kub. Tom qab redispersible looj hmoov yog sib xyaw nrog dej thiab rov ua dua tshiab, nws muaj cov duab emulsion qub, uas yog, ib zaj duab xis yuav tsim tom qab dej evaporates. Zaj duab xis tau muaj siab dua thiab zoo adhesion rau ntau hom substrates.
Qhov saum toj no yog txoj kev ntawm kev txheeb xyuas cov hmoov zoo li cas yooj yim thiab xaiv cov hmoov kom tsis sib xws rau koj siv. Leej twg koom nrog kev tsim kho kev tsim kho paub nws qhov tseem ceeb. Qhov zoo tshaj ntawm cov hmoov looj kom haum ncaj qha cuam tshuam nrog kev tsim kho thiab kev txhim kho ntawm kev tsim kho. Nws yog ib qho tseem ceeb kom xaiv txoj cai redispersible looj hmoov.
Lub sijhawm Post: Apr-26-2023