Nyob rau xyoo tas los no, kev lag luam kev tsim kho tau pom kev hloov pauv loj mus rau kev siv cov pob zeb ua haujlwm siab kom tau raws li qhov xav tau ntawm cov haujlwm tsim kho vaj tse niaj hnub. Ib qho ntawm cov khoom xyaw tseem ceeb ntawm cov pob zeb ua haujlwm siab yog cov khoom sib txuas, uas khi cov khoom sib xyaw ua ke los ua cov pob zeb ua kom ruaj khov thiab ruaj khov. Ntawm ntau hom nplaum, kev siv cov nplaum polymeric tau txais kev nyiam rau nws lub peev xwm los muab cov khoom xav tau xws li kev ua kom ruaj khov thiab yooj ywm.
Ib qho ntawm cov polymer binders uas siv ntau tshaj plaws hauv cov pob zeb ua vaj tse siab yog RDP (Redispersible Polymer Hmoov) polymer binder. RDP polymer binders yog cov hmoov sib tov qhuav uas tuaj yeem sib tov nrog lwm cov khoom xyaw kom yooj yim los tsim cov khoom sib tov nrog kev ywj pheej thiab kev tiv thaiv dej. Ntxiv RDP polymer binders rau hauv cov pob zeb yog qhov tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas cov pob zeb yuav tsum raug kev ntxhov siab loj lossis dhau los ntawm kev nthuav dav thiab kev cog lus ntau zaus.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm RDP polymer adhesives yog lawv cov khoom sib txuas zoo dua. RDP polymer binders muaj cov tshuaj lom neeg uas pab lawv lo rau cov khoom sib xyaw thiab lwm yam khoom hauv cov sib tov ua vaj tse. Qhov no ua rau cov pob zeb ua vaj tse muaj zog dua thiab ruaj khov dua, tiv taus kev puas tsuaj los ntawm cov zog sab nraud xws li kev khov-thaw, kev puas tsuaj thiab kev cuam tshuam.
Lwm qhov txiaj ntsig ntawm RDP polymer binders yog lawv lub peev xwm los ua kom muaj kev ywj pheej ntawm cov sib tov ua vaj tse. Cov sib tov ua vaj tse ib txwm muaj feem ntau tawg yooj yim thiab yooj yim tawg thaum raug kev ntxhov siab lossis kev hloov pauv kub. RDP polymer binders tuaj yeem hloov kho kom tsim tau ntau qib ntawm kev ywj pheej, ua rau cov sib tov ua vaj tse tiv taus cov kev ntxhov siab no zoo dua yam tsis muaj kev tawg. Qhov kev ywj pheej ntxiv no kuj txo qhov kev pheej hmoo ntawm kev tawg lossis lwm yam kev puas tsuaj thaum lub sijhawm tsim kho lossis siv.
Ntxiv rau qhov muab kev ruaj khov thiab kev ywj pheej ntau dua, RDP polymer nplaum kuj tseem tiv taus dej noo heev. Cov qauv pob zeb uas raug dej lossis dej noo ntev ntev tuaj yeem tsim ntau yam teeb meem, suav nrog kev tawg, spalling thiab corrosion. RDP polymer binders muaj cov neeg sawv cev hydrophobic uas pab tiv thaiv dej noo, txo qhov kev pheej hmoo ntawm cov teeb meem no thiab txhim kho kev ua haujlwm ntev ntawm cov qauv pob zeb.
Kev siv cov nplaum RDP polymer kuj yog ib puag ncig zoo. Tsis zoo li cov sib xyaw ua ke, uas feem ntau xav tau ntau cov cement Portland, uas yog qhov tseem ceeb ntawm cov pa roj carbon dioxide, RDP polymer binders tuaj yeem siv cov nyiaj me dua kom ua tiav tib theem ntawm kev ua tau zoo. Qhov no txo cov pa roj carbon ntawm cov sib xyaw ua ke thiab pab txo qhov cuam tshuam rau ib puag ncig ntawm kev tsim kho.
Txawm hais tias lawv muaj ntau yam zoo, muaj qee qhov teeb meem cuam tshuam nrog kev siv RDP polymer binders hauv cov pob zeb ua vaj tse. Ib qho ntawm cov teeb meem loj tshaj plaws yog qhov xav tau kev tswj hwm qhov ntau thiab tsawg thiab kev sib xyaw ntawm cov polymer binders kom ntseeg tau tias muaj kev ua haujlwm zoo tshaj plaws. Cov binder tsawg dhau ua rau kev nplaum thiab kev ruaj khov tsawg dua, thaum cov binder ntau dhau ua rau lub zog tsawg dua thiab kev ua haujlwm tsawg dua. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum ua haujlwm nrog tus neeg muag khoom pob zeb uas muaj kev paub dhau los uas nkag siab txog cov yam ntxwv ntawm RDP polymer binders thiab tuaj yeem pab ua kom zoo dua lawv siv hauv cov ntawv thov tshwj xeeb.
Muaj ntau qhov zoo ntawm kev siv RDP polymer binders hauv cov pob zeb ua vaj tse zoo. Nws ua rau lub zog thiab kev ywj pheej ntawm cov sib tov pob zeb ua vaj tse, txhim kho nws txoj kev tiv thaiv dej noo, thiab muaj kev cuam tshuam tsawg dua rau ib puag ncig dua li cov sib tov pob zeb ua vaj tse ib txwm muaj. Txawm hais tias lawv siv muaj qee qhov kev cov nyom, kev sib xyaw ua ke thiab kev sib tov ua tib zoo tuaj yeem tsim cov txiaj ntsig zoo thiab ua rau muaj cov qauv pob zeb ua vaj tse ruaj khov thiab kav ntev. RDP polymer adhesives yog qhov kev xaiv zoo rau cov neeg uas tab tom nrhiav kev tsim cov qauv pob zeb ua vaj tse uas tuaj yeem tiv taus cov xwm txheej hnyav thiab muab kev ua haujlwm txhim khu kev qha dhau sijhawm.
Lub sijhawm tshaj tawm: Lub Kaum Hli-16-2023