Nyob rau hauv xyoo tas los no, kev tsim kho kev lag luam tau pom kev hloov pauv loj ntawm kev siv cov pob zeb ua haujlwm siab kom tau raws li qhov xav tau ntawm cov phiaj xwm niaj hnub no. Ib qho ntawm cov khoom xyaw tseem ceeb ntawm cov pob zeb ua haujlwm siab yog cov binder, uas khi cov khoom sib xyaw ua ke los tsim cov pob zeb ua kom muaj zog thiab ruaj khov. Ntawm ntau hom adhesives, kev siv polymeric adhesives tau muaj koob meej rau nws lub peev xwm los muab cov khoom xav tau xws li kev ua kom muaj zog thiab ua kom yooj yim.
Ib qho ntawm feem ntau siv polymer binders hauv kev ua haujlwm siab yog RDP (Redispersible Polymer Powder) polymer binder. RDP polymer binders yog cov hmoov sib tov qhuav uas tuaj yeem sib xyaw nrog lwm cov khoom xyaw los tsim cov pob zeb sib xyaw nrog kev ua kom yooj yim thiab dej tsis kam. Ntxiv RDP polymer binders rau pob zeb yog qhov tshwj xeeb tshaj yog siv rau hauv cov ntawv thov uas cov pob zeb xav tias yuav raug kev ntxhov siab loj lossis dhau mus ntau zaus ntawm kev nthuav dav thiab kev cog lus.
Ib qho txiaj ntsig tseem ceeb ntawm RDP polymer adhesives yog lawv cov khoom sib txuas zoo dua. RDP polymer binders muaj cov tshuaj tua kab mob uas pab lawv ua raws li kev sib sau ua ke thiab lwm yam khoom hauv cov pob zeb sib xyaw. Qhov no ua rau cov pob zeb matrix muaj zog thiab ruaj khov dua, tiv thaiv kev puas tsuaj los ntawm sab nraud quab yuam xws li khov-thaw cycles, abrasion thiab cuam tshuam.
Lwm qhov txiaj ntsig ntawm RDP polymer binders yog lawv lub peev xwm los ua kom yooj yim ntawm cov pob zeb sib xyaw. Kev sib xyaw ua vaj tse qub feem ntau nkig thiab ua rau tawg thaum raug kev ntxhov siab lossis kub hloov pauv. RDP polymer binders tuaj yeem hloov kho los tsim cov qib sib txawv ntawm kev hloov pauv, tso cai rau cov pob zeb sib xyaw kom zoo dua tiv thaiv cov kev ntxhov siab yam tsis muaj kev tawg. Qhov kev hloov pauv tau nce ntxiv no kuj txo qhov kev pheej hmoo ntawm delamination lossis lwm yam kev puas tsuaj thaum lub sijhawm tsim kho lossis siv.
Ntxiv nrog rau kev muab cov kav ntev thiab yooj yim dua, RDP polymer adhesives kuj tseem muaj dej tsis kam. Cov vaj tse pob zeb uas raug dej lossis dej noo rau lub sijhawm ntev tuaj yeem tsim muaj ntau yam teeb meem, suav nrog kev tawg, tawg thiab corrosion. RDP polymer binders muaj cov tshuaj hydrophobic uas pab tiv thaiv cov dej noo, txo qhov kev pheej hmoo ntawm cov teeb meem no thiab txhim kho kev ua haujlwm ntev ntawm cov pob zeb ua vaj tse.
Kev siv RDP polymer adhesives kuj yog ib puag ncig tus phooj ywg. Tsis zoo li cov pob zeb sib xyaw ua ke, uas feem ntau xav tau ntau ntawm Portland cement, qhov loj ntawm cov pa roj carbon monoxide, RDP polymer binders tuaj yeem siv cov nqi me me kom ua tiav tib theem ntawm kev ua tau zoo. Qhov no txo cov pa roj carbon hneev taw ntawm cov pob zeb sib xyaw thiab pab txo qis kev cuam tshuam ib puag ncig ntawm kev tsim kho.
Txawm hais tias lawv muaj ntau qhov zoo, muaj qee qhov teeb meem cuam tshuam nrog kev siv RDP polymer binders hauv pob zeb. Ib qho ntawm cov kev cov nyom loj yog qhov yuav tsum tau ua tib zoo tswj qhov ntau npaum li cas thiab kev sib xyaw ntawm cov ntaub ntawv polymer kom ntseeg tau tias kev ua haujlwm zoo. Cov binder me me dhau los ua rau txo qis adhesion thiab durability, thaum ntau dhau los ua rau txo lub zog thiab txo kev ua haujlwm. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau ua hauj lwm nrog ib tug paub txog cov khoom vaj khoom tsev uas nkag siab txog cov yam ntxwv ntawm RDP polymer binders thiab yuav pab tau optimize lawv siv nyob rau hauv tej daim ntawv thov.
Muaj ntau qhov zoo rau kev siv RDP polymer binders hauv cov pob zeb ua haujlwm siab. Nws txhim kho cov kav ntev thiab yooj yim ntawm cov pob zeb sib xyaw, txhim kho nws cov kev tiv thaiv kom ya raws, thiab muaj kev cuam tshuam ib puag ncig qis dua li cov pob zeb sib xyaw. Thaum lawv cov kev siv nthuav tawm qee qhov kev sib tw, ceev faj batching thiab sib xyaw ua ke tuaj yeem tsim cov txiaj ntsig zoo thiab ua rau kev tsim cov pob zeb muaj zog thiab kav ntev. RDP polymer adhesives yog ib qho kev xaiv zoo tshaj plaws rau cov neeg uas tab tom nrhiav kev tsim cov vaj tse pob zeb uas tuaj yeem tiv taus cov xwm txheej hnyav thiab muab kev ua haujlwm ruaj khov rau lub sijhawm.
Post lub sij hawm: Oct-16-2023