Redispersible hmoov yog ib qho tseem ceeb additive siv nyob rau hauv cementitious los yog gypsum-raws li cov ntaub ntawv nyob rau hauv kev tsim kho kev lag luam. Nws siv tau hloov pauv txoj kev siv cov ntaub ntawv no hauv kev tsim kho, vim nws txhim kho cov khoom ntawm cov khoom kawg, ua rau nws ruaj khov, hloov tau, thiab tiv taus dej puas. Hauv seem no, peb yuav saib ntau yam kev siv cov hmoov redispersible.

1. Txhim kho adhesion thiab cohesion

Ib qho tseem ceeb ntawm kev siv cov hmoov redispersible yog los txhim kho cov adhesion thiab cohesion ntawm cementitious lossis gypsum-based cov ntaub ntawv. Thaum ntxiv rau kev sib xyaw qhuav, cov hmoov rov ua dua tshiab tsim cov yeeb yaj kiab ntawm cov cement hais, uas txhim kho lawv lub peev xwm los lo ua ke thiab sib txuas rau lwm qhov chaw. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov uas cov khoom raug rau sab nraud quab yuam, xws li cua los yog los nag.

2. Txhim khu kev tiv thaiv dej

Lwm qhov tseem ceeb ntawm kev siv cov hmoov redispersible yog los txhim kho cov dej tsis kam ntawm cov ntaub ntawv cementitious lossis gypsum. Cov zaj duab xis polymer tsim los ntawm cov hmoov redispersible tiv thaiv dej los ntawm kev nkag mus rau saum npoo ntawm cov khoom, uas txo qhov kev pheej hmoo ntawm tawg, shrinking, los yog sagging. Qhov no ua rau cov khoom siv ruaj khov thiab siv tau ntev, txawm tias nyob hauv qhov chaw ntub dej lossis ntub dej.

3. Ua kom yooj yim thiab ua haujlwm tau zoo

Redispersible hmoov kuj tseem siv los ua kom qhov yooj yim thiab ua haujlwm ntawm cov khoom siv cementitious lossis gypsum. Cov zaj duab xis polymer tsim los ntawm cov hmoov redispersible tso cai rau cov khoom siv khoov thiab ncab yam tsis muaj kev tawg, uas ua rau nws zoo tagnrho rau siv hauv cov ntawv thov uas yuav tsum tau txav mus los. Cov hmoov kuj tseem txhim khu kev ua haujlwm ntawm cov khoom siv, ua kom yooj yim rau kev sib tov, sib kis, thiab ua kom tiav.

4. Txhim kho khov-thaw tsis kam

Kev tiv thaiv khov-thaw yog ib qho tseem ceeb ntawm cov khoom siv cementitious lossis gypsum-based, tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam uas kub hloov pauv tau zoo heev. Redispersible hmoov tuaj yeem txhim kho qhov khov-thaw tsis kam ntawm cov ntaub ntawv no los ntawm kev txo cov dej uas nkag mus rau saum npoo ntawm cov khoom, uas txo qhov kev pheej hmoo ntawm kev tawg lossis tawg.

5. Ua kom durability

Redispersible hmoov yog siv los ua kom lub zog ntawm cov cementitious lossis gypsum-raws li cov ntaub ntawv, ua rau lawv tiv taus hnav thiab tsim kua muag. Cov hmoov pab txhawb cov khoom siv, txo qhov kev pheej hmoo ntawm kev tawg lossis tawg, thiab txuas ntxiv nws txoj sia.

6. Txhim kho qhov tsos

Redispersible hmoov kuj tuaj yeem txhim kho cov tsos ntawm cementitious lossis gypsum-raws li cov ntaub ntawv, los ntawm kev txhim kho lawv cov kev ntxhib los mos, xim, thiab tiav. Cov hmoov tuaj yeem siv los tsim kom muaj lub ntsej muag du, zoo ib yam, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas cov khoom yuav pom, xws li hniav plaster lossis stucco.

7. Txo shrinkage

Redispersible hmoov tuaj yeem pab txo qis qis uas tshwm sim hauv cov khoom siv cementitious lossis gypsum thaum lub sijhawm ziab. Qhov no yog vim hais tias cov zaj duab xis polymer tsim los ntawm cov hmoov pab tuav cov khoom ua ke, txo qhov chaw ntawm lawv raws li cov khoom dries.

8. Txhim khu lub zog

Redispersible hmoov kuj tuaj yeem txhim kho lub zog ntawm cementitious lossis gypsum-raws li cov ntaub ntawv, ua rau lawv tiv taus kev tawg lossis tawg hauv kev ntxhov siab. Cov hmoov pab ntxiv dag zog rau cov khoom, ua kom nws lub zog tensile thiab tiv thaiv nws los ntawm crumbling los yog poob sib nrug.

9. Txhim kho kev ua haujlwm

Redispersible hmoov tuaj yeem txhim kho kev ua haujlwm ntawm cov cementitious lossis gypsum-raws li cov ntaub ntawv, ua kom yooj yim sib tov, sib kis, thiab ua tiav. Cov hmoov txo cov dej uas xav tau hauv kev sib tov, uas ua rau cov khoom siv tsis tshua muaj dej thiab tswj tau yooj yim dua.

10. Ua kom tsis haum tshuaj

Redispersible hmoov tuaj yeem ua rau muaj kev tiv thaiv ntawm cementitious lossis gypsum-raws li cov ntaub ntawv rau cov tshuaj, xws li acids lossis alkalis. Cov hmoov pab tiv thaiv cov khoom los ntawm cov teebmeem ntawm cov tshuaj no, txo cov kev pheej hmoo ntawm degradation los yog corrosion.

Nyob rau hauv xaus, redispersible hmoov yog ib qho tseem ceeb additive siv nyob rau hauv cementitious los yog gypsum-raws li cov ntaub ntawv nyob rau hauv kev tsim kho kev lag luam. Nws siv txhim kho cov khoom ntawm cov khoom kawg, ua rau nws ruaj khov, hloov tau, thiab tiv taus dej puas. Cov hmoov yog siv los txhim kho adhesion thiab cohesion, txhim khu cov dej tsis kam, ua kom yooj thiab ua haujlwm, txhim kho khov-thaw tsis kam, ua kom muaj zog, txhim khu cov tsos, txo qis, txhim kho lub zog, txhim kho kev ua haujlwm, thiab ua kom cov tshuaj tiv thaiv.