Redispersible polymer hmoov (RDP) yog cov khoom siv hauv tsev ntxiv uas hloov cov polymer emulsion rau hauv cov hmoov hmoov los ntawm cov txheej txheem ziab kom qhuav. Thaum cov hmoov no sib xyaw nrog dej, nws tuaj yeem rov ua dua los tsim cov latex ruaj khov uas nthuav tawm cov khoom zoo ib yam li cov latex qub. Cov khoom siv no tau siv dav hauv kev tsim kho kev lag luam, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov mortar qhuav thiab lub tsev adhesives.
1. Cov khoom xyaw tseem ceeb thiab txheej txheem kev npaj
Cov khoom xyaw tseem ceeb ntawm cov kua roj hmab rov ua dua tshiab feem ntau muaj xws li polymer matrix, kev tiv thaiv colloid (xws li polyvinyl cawv), additives (xws li defoamers thiab plasticizers) thiab qee qhov inorganic fillers (xws li calcium carbonate). Lub polymer matrix yog lub ntsiab tivthaiv ntawm redispersible latex hmoov. Cov polymers muaj xws li ethylene-vinyl acetate copolymer (EVA), acrylate copolymer thiab styrene-butadiene copolymer.
Cov txheej txheem ntawm kev npaj redispersible latex hmoov feem ntau suav nrog cov kauj ruam hauv qab no:
Emulsion polymerization: Ua ntej, npaj ib qho aqueous emulsion uas muaj cov polymer. Los ntawm emulsion polymerization technology, monomers yog polymerized hauv dej los tsim emulsion zoo li polymer hais.
Txau kom qhuav: Cov txheej txheem polymer emulsion tau qhuav los ntawm lub tshuab ziab khaub ncaws. Cov emulsion yog txau rau hauv cov dej zoo thiab sai sai kom qhuav los ua cov hmoov polymer hais.
Kev kho deg: Thaum lub sij hawm los yog tom qab ziab, qee cov tshuaj kho deg (xws li polyvinyl cawv) feem ntau yog ntxiv los txhim kho qhov ruaj khov thiab rov ua dua ntawm cov hmoov.
2. Cov yam ntxwv ua tau zoo
Redispersible latex hmoov muaj ntau yam khoom tshwj xeeb uas ua rau nws nrov hauv kev tsim kho:
Redispersibility: Cov hmoov no tuaj yeem hloov pauv hauv dej thiab rov qab mus rau lub xeev emulsion, muab cov khoom siv zoo ib yam li thawj emulsion.
Txhim kho adhesion: Hauv kev sib xyaw qhuav mortar lossis nplaum, latex hmoov tuaj yeem txhim kho qhov adhesion ntawm cov khoom thiab cov substrate.
Txhim kho kev yooj yim: Nws tuaj yeem txhim kho qhov yooj yim thiab tawg tsis kam ntawm cov khoom siv thiab txo qhov kev pheej hmoo ntawm kev tawg los ntawm kev ntxhov siab lossis kev hloov kub.
Dej tsis kam thiab huab cua tsis kam: Redispersible latex hmoov tuaj yeem txhim kho cov dej tsis kam thiab huab cua tsis kam ntawm cov ntaub ntawv, ua rau lawv ruaj khov nyob rau hauv cov av ntub lossis hloov pauv huab cua.
Kev tsim kho yooj yim: Cov khoom siv nrog cov khoom siv rov ua dua tshiab latex hmoov ntxiv muaj kev ua haujlwm zoo dua thaum tsim kho, xws li lub sijhawm qhib ntev dua thiab qib zoo dua.
3. Cov chaw thov
Redispersible latex hmoov muaj ntau yam kev siv hauv kev tsim kho kev lag luam, feem ntau suav nrog cov hauv qab no:
Pobzeb nplaum: Cov hmoov Latex tuaj yeem txhim kho kev sib raug zoo thiab kev yooj yim ntawm cov pobzeb nplaum, thiab yog tsim rau ntau yam substrates thiab pobzeb hom, tshwj xeeb tshaj yog nyob rau hauv geothermal plag tsev thiab sab nrauv phab ntsa rwb thaiv tsev.
Waterproof mortar: Nyob rau hauv cov mis tsis muaj dej tsis zoo, cov hmoov latex tuaj yeem txhim kho qhov kev sib tsoo thiab kev ua haujlwm tsis zoo ntawm cov tshuaj khib nyiab, ua rau nws ua tau zoo nyob rau hauv qhov chaw ntub dej xws li chav dej thiab chav ua noj.
Cov ntaub ntawv hauv pem teb tus kheej: Cov hmoov Latex tuaj yeem txhim kho qhov fluidity thiab flatness ntawm tus kheej-leveling cov ntaub ntawv hauv pem teb, kom ntseeg tau tias hauv pem teb yog du, muaj zog thiab tsis yooj yim rau tawg tom qab kev tsim kho.
Sab nrauv phab ntsa rwb thaiv tsev: Hauv cov txheej txheem phab ntsa sab nraud (xws li cov phab ntsa sab nraud thiab cov kab hluav taws xob sab hauv), cov hmoov latex tuaj yeem txhim kho lub zog sib txuas ntawm cov rwb thaiv tsev thiab cov txheej txheem, ua kom muaj kev ntseeg siab thiab ruaj khov ntawm cov rwb thaiv tsev.
Kho mortar: Latex hmoov plays lub luag haujlwm hauv kev txhim kho kev sib raug zoo thiab kev sib tsoo ntawm kev kho cov tshuaj khib nyiab, ua kom muaj kev sib xyaw ua ke zoo ntawm qhov chaw kho nrog cov qauv qub thiab txuas ntxiv lub neej kev pabcuam ntawm lub tsev.
4. Kev tiv thaiv ib puag ncig thiab kev ruaj ntseg
Nrog rau kev txhim kho ntawm ib puag ncig kev paub, kev tiv thaiv ib puag ncig cov yam ntxwv ntawm redispersible latex hmoov kuj tau them nyiaj rau. Ntau lub tuam txhab tau txais cov txheej txheem tsim khoom zoo ib puag ncig los txo kev siv cov khoom tsis zoo, thiab cov khoom siv no tuaj yeem txo cov khoom pov tseg thiab txhim kho kev siv peev txheej hauv kev tsim kho. Tsis tas li ntawd, thaum txhim kho kev ua haujlwm ntawm cov khoom siv hauv tsev, latex hmoov kuj tuaj yeem txo cov nqi tu thiab kev siv hluav taws xob ntawm cov tsev, yog li ua rau kev txhim kho cov vaj tse ruaj khov.
5. Kev cia siab ntawm kev ua lag luam thiab kev loj hlob
Nrog rau qhov kev thov nce ntxiv rau cov khoom siv ua haujlwm siab thiab ib puag ncig tus phooj ywg hauv kev tsim kho kev lag luam, kev lag luam zeem muag ntawm redispersible latex hmoov yog dav. Kev txhim kho yav tom ntej muaj xws li:
Kev ua kom zoo dua qub: Txhim kho qhov kev ua tau zoo ntawm cov hmoov latex, xws li txhim kho nws cov huab cua tsis kam thiab tshuaj lom neeg, kom ua tau raws li qhov xav tau ntawm cov ntawv thov sib txawv.
Ntsuab ntau lawm: Txo cov pa roj carbon hneev taw thiab ib puag ncig cuam tshuam ntawm cov txheej txheem tsim los ntawm ntsuab chemistry thiab cov txheej txheem ruaj khov.
Customized khoom: Muab customized latex hmoov cov khoom raws li cov kev xav tau ntawm cov neeg muas zaub kom hloov mus rau tshwj xeeb daim ntawv thov scenarios, xws li tsis tshua muaj kub kev tsim kho, high-humidity ib puag ncig, thiab lwm yam.
Redispersible latex hmoov, raws li cov khoom siv tseem ceeb hauv tsev ntxiv, muaj ntau yam ntawm daim ntawv thov kev cia siab. Nws cov kev ua tau zoo heev tsis yog tsuas yog txhim kho cov khoom siv hauv tsev, tab sis kuj txhawb kev tsim kho kev lag luam kom txhim kho nyob rau hauv ib puag ncig tus phooj ywg thiab kev coj noj coj ua.
Post lub sij hawm: Aug-23-2024