Cov hmoov latex uas yaj tau dua (RDP)yog ib yam khoom siv polymer uas siv dav hauv kev lag luam kev tsim kho, feem ntau siv ua cov khoom ntxiv rau putty, txheej, nplaum thiab lwm yam khoom. Nws lub luag haujlwm tseem ceeb yog txhim kho qhov yooj ywm, lo, tiv thaiv dej thiab tiv thaiv kev laus ntawm cov khoom.
1. Txhim kho qhov adhesion ntawm putty
Qhov ntxiv cov hmoov latex uas yaj tau dua rau hauv cov putty tuaj yeem ua rau qhov sib txuas ntawm putty thiab qhov chaw hauv paus zoo dua (xws li cement, gypsum board, thiab lwm yam). Tom qab cov hmoov latex yaj hauv dej, nws tsim cov tshuaj colloidal, uas tuaj yeem tsim kom muaj zog sib txuas ntawm lub cev thiab tshuaj lom neeg ntawm putty thiab qhov chaw hauv paus. Qhov sib txuas zoo dua tuaj yeem txhim kho qhov cuam tshuam ntawm kev tsim kho ntawm putty, zam kev tawg, poob thiab lwm yam teeb meem, thiab txuas lub neej ua haujlwm ntawm putty.
2. Txhim kho qhov yooj ywm thiab tawg tsis kam ntawm putty
Qhov yooj ywm ntawm cov putty yog ib qho tseem ceeb uas cuam tshuam rau nws qhov ruaj khov thiab kev ua haujlwm ntawm kev tsim kho. Cov hmoov latex uas tawg tau dua ua lub luag haujlwm hauv kev ua kom elasticity thiab kev ywj pheej ntawm cov putty. Vim yog qhov cuam tshuam ntawm cov saw hlau molecular ntawm cov hmoov latex, cov putty tuaj yeem tau txais qee qhov elasticity tom qab ziab, thiab tuaj yeem hloov kho rau qhov deformation me ntsis ntawm qhov chaw hauv paus, yog li txo cov kab nrib pleb los ntawm cov yam xws li kev hloov pauv kub thiab kev hloov pauv av noo. Qhov no yog qhov tseem ceeb rau qhov zoo nkauj thiab kev ruaj khov ntawm kev kho kom zoo nkauj phab ntsa.
3. Txhim kho qhov dej tsis kam thiab huab cua tsis kam ntawm putty
Cov hmoov latex tuaj yeem txhim kho qhov tsis kam ntawm cov dej ntawm putty los ntawm kev txhim kho qhov hydrophobicity ntawm putty. Cov putty ib txwm yooj yim nqus dej thiab o hauv qhov chaw noo noo, ua rau txheej putty tev tawm thiab pwm. Tom qab ntxiv cov hmoov latex rov ua dua tshiab, lub peev xwm nqus dej ntawm putty raug txo qis heev, thiab nws tuaj yeem tiv taus qee qib ntawm kev yaig dej. Tsis tas li ntawd, kev ntxiv cov hmoov latex kuj txhim kho qhov tsis kam ntawm huab cua ntawm putty, yog li putty tseem tuaj yeem tswj tau qhov ua tau zoo tom qab raug rau lub sijhawm ntev rau qhov chaw hnyav xws li cua, nag thiab hnub.
4. Txhim kho kev ua tau zoo ntawm cov putty
Cov hmoov latex uas yaj tau dua tuaj yeem txhim kho kev ua haujlwm ntawm cov putty. Kev ntxiv cov hmoov latex ua rau cov putty yooj yim dua rau kev siv thiab ua haujlwm, txo qhov nyuaj thiab kev siv zog ntawm kev tsim kho. Qhov ua tau zoo thiab kev ua haujlwm ntawm cov putty yuav zoo dua, thiab qhov tiaj tus thiab kev nplaum ntawm cov txheej tuaj yeem txhim kho ntxiv. Cov hmoov latex ua rau cov putty muaj qee yam khoom kho qeeb thaum lub sijhawm ziab, zam kev tawg lossis txheej tsis sib xws los ntawm kev ziab sai dhau ntawm cov putty thaum lub sijhawm tsim kho.
5. Txhim kho qhov kev tiv thaiv te ntawm putty
Hauv thaj chaw txias, cov putty yuav poob nws txoj haujlwm qub vim qhov kub qis, thiab txawm tias ua rau muaj teeb meem xws li tawg thiab poob tawm. Kev ntxiv cov hmoov latex uas rov ua dua tshiab tuaj yeem txhim kho qhov kev tiv thaiv te ntawm putty. Cov hmoov latex tuaj yeem tswj tau qhov ruaj khov zoo hauv qab qhov kub qis thiab zam cov teeb meem zoo ntawm putty vim khov. Yog li ntawd, kev siv cov putty uas muaj hmoov latex hauv thaj chaw txias xws li sab qaum teb tuaj yeem txhim kho qhov ruaj khov thiab kev ntseeg siab ntawm cov khoom.
6. Txo qhov porosity thiab txhim kho qhov ceev ntawm putty
Ntxiv cov hmoov latex tuaj yeem txo qhov porosity ntawm putty thiab ua kom cov putty ntom dua. Thaum lub sijhawm tsim cov zaj duab xis ntawm putty, cov hmoov latex tuaj yeem sau cov qhov me me hauv putty, txo qhov nkag mus ntawm huab cua thiab dej, thiab txhim kho qhov tsis kam dej, tiv taus kev ua qias tuaj thiab tiv taus kev cuam tshuam ntawm putty. Qhov compact ntawm putty muaj qhov cuam tshuam tseem ceeb rau qhov ruaj khov ntawm phab ntsa, thiab tuaj yeem txhim kho qhov zoo ntawm phab ntsa tom qab siv ntev.
7. Txhim kho cov khoom tiv thaiv kev ua qias tuaj ntawm putty
Cov txheej putty yog txheej hauv qab ntawm cov xim. Kev raug plua plav, roj, cov kua qaub thiab alkaline hauv huab cua thiab lwm yam khoom ua qias tuaj ntev yuav cuam tshuam rau qhov kawg ntawm cov xim. Cov hmoov latex uas yaj tau dua pab txo qhov muaj peev xwm nqus tau ntawm qhov chaw putty, yog li txo qhov lo ntawm cov pa phem. Qhov no tsis yog tsuas yog txhim kho qhov ruaj khov ntawm putty, tab sis kuj tseem tswj qhov zoo nkauj ntawm cov xim phab ntsa.
8. Ua kom cov putty tuab dua
Vim tias cov hmoov latex tuaj yeem txhim kho qhov kev sib txuas thiab kev ua haujlwm ntawm cov putty, cov hmoov latex feem ntau tuaj yeem txhawb nqa qhov tuab ntawm kev tsim kho. Qhov no yog qhov tseem ceeb tshwj xeeb rau qee phab ntsa uas xav tau qhov tuab dua los kho, uas tuaj yeem ua kom ntseeg tau tias phab ntsa kho tau du thiab tsis yooj yim tawg thaum siv ntev.
Qhov cuam tshuam ntawmhmoov latex uas yaj tau dua tshiabntawm putty muaj ntau yam, feem ntau yog pom hauv kev txhim kho qhov lo, kev ywj pheej, kev tiv thaiv dej, kev tiv thaiv te, kev ua haujlwm tsim kho thiab tiv thaiv kev ua qias tuaj ntawm putty. Raws li kev hloov kho zoo heev, hmoov latex tsis tsuas yog tuaj yeem txhim kho qhov zoo ntawm putty thiab txhim kho nws lub zog, tab sis kuj ua rau putty hloov pauv tau yooj yim dua hauv ntau qhov chaw tsim kho. Raws li kev lag luam tsim kho qhov yuav tsum tau ua rau kev tsim kho phab ntsa zoo nce ntxiv, kev siv cov hmoov latex redispersible yuav dhau los ua ntau dua, thiab nws cov kev cuam tshuam rau cov khoom putty yuav dhau los ua qhov tseem ceeb dua.
Lub sijhawm tshaj tawm: Lub Peb Hlis-25-2025