Recispersible polymer hmoov (RDP) yog hmoov polymer-raws li tshuaj tsuag los ntawm tshuaj tsuag-kom qhuav polymer dispersion. Cov hmoov no tuaj yeem raug hluav taws xob rau hauv dej los ua cov ntaub yas uas muaj cov khoom zoo sib xws rau cov qub polymer dispersion. RDP yog feem ntau siv nyob rau hauv kev tsim kho kev tsim kho raws li tus tseem ceeb ntxiv hauv cov ntaub ntawv hauv tsev. Ntawm no yog ib tug txheej txheem cej luam ntawm RDP hauv cov ntsiab lus ntawm lub tsev cov ntaub ntawv:
Cov yam ntxwv tseem ceeb ntawm RDP hauv cov ntaub ntawv hauv tsev:
1. Txhim Kho Yooj Yim thiab Adhesion:
- RDP txhim kho kev yooj yim thiab cov khoom nplaum ntawm cov ntaub ntawv hauv tsev xws li Mortars, cov nplaum nplaum, thiab cov khoom siv ua ke. Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev kho cov ntawv thov qhov twg ruaj khov thiab lub zog yog qhov tseem ceeb.
2. Dej khaws cia:
- RDP txhim kho cov khoom siv hluav taws xob kom txuag tau ntawm cov ntaub ntawv tsim tsev, kom ua kom muaj kev haus dej kom huv ntawm kev ntseeg khov kho. Qhov no muaj peev xwm ua haujlwm tau zoo dua qub thiab txuas ntxiv qhib lub sijhawm rau cov ntawv thov nyiam cov khoom nplaum vais.
3. Cov cohesion thiab lub zog nce ntxiv:
- Nyob rau hauv cov neeg muaj ntsha thiab rders, RDP ua raws li phau ntawv qhia, txhim kho cov cohesion ntawm cov khoom thiab txhim kho lub zog. Qhov no tseem ceeb rau cov ntawv thov uas cov qauv txheej txheem yog qhov tseem ceeb.
4. Txo shrinkage:
- Kev sib txuam ntawm RDP hauv cov ntaub ntawv hauv tsev yuav pab txo qis qhov ntsws thaum lub txheej txheem ua kom qhuav. Qhov no yog qhov tseem ceeb rau kev tiv thaiv cov kab nrib pleb thiab ua kom muaj kev ruaj khov ntev ntawm cov qauv.
5. Txhim kho cov kev cuam tshuam tsis kam:
- RDP pab txhawb rau cov kev cuam tshuam tiv thaiv cov txheej txheem thiab cov khoom siv, muab cov txheej tiv thaiv uas tuaj yeem tiv thaiv sab nraud.
6. Txhim Kho Cov Haujlwm:
- Kev siv RDP txhim kho kev ua haujlwm ntawm cov khoom siv tsim kho, ua rau lawv yooj yim rau kev sib xyaw, thov, thiab cov duab. Qhov no yog qhov zoo dua thaum tsim qauv kev tsim kho.
Cov ntawv thov hauv cov ntaub ntawv hauv tsev:
1. Pobzeb Adhesives thiab Grouts:
- RDP feem ntau siv nyob rau hauv cov nplais nplaum thiab grouts los txhim kho adhesion, yooj yim, thiab dej tsis kam. Nws pab kom cov vuas tsuav nyob ruaj khov nyob rau hauv qhov chaw.
2. Sab nrauv rwb thaiv tsev thiab tiav cov tshuab (EIFS):
- RDP yog siv hauv Eifs txhawm rau txhim kho cov nplaum thiab yooj ntawm cov kab ke. Nws tseem ua rau muaj kev cuam tshuam rau lub kaw lus lub zog thiab kev tawm tsam rau qee qhov chaw ib puag ncig.
3. Mortar thiab renders:
- Hauv cov neeg nplua nuj thiab tus muab tub txib, RDP ua cov tseem ceeb ntxiv rau kev txhim kho cohesion, lub zog, thiab kev ua haujlwm. Nws pab tiv thaiv kev tiv thaiv cov kab nrib pleb thiab txhim kho cov kev ua tau zoo tag nrho.
4. Tus kheej-levwm sib txuas:
- RDP siv nyob rau hauv tus kheej-qib sib txuas kom txhim kho lawv cov khoom ntws thiab cov nplaum. Qhov no yog qhov tseem ceeb rau kev ua tiav qhov chaw du thiab theem.
5. Gypsum-based khoom:
- RDP tuaj yeem koom rau hauv cov khoom lag luam gypsum raws los txhim kho lawv cov nplaum, dej tsis kam, thiab tag nrho kev ua tau zoo.
Xaiv kev xaiv:
1. Polymer hom:
- Ntau hom RDP yuav yog nyob ntawm ntau hom polymer, xws li vinyl acetate ethylene (vae) lossis styrene butadiene (sb). Kev xaiv yog nyob ntawm qhov tshwj xeeb uas yuav tsum tau ua ntawm daim ntawv thov.
2. DOSAGE REST:
- Qhov ntau npaum li cas ntawm RDP nyob rau hauv ib tug tsim nyob ntawm yam zoo li hom khoom siv, yam khoom xav tau, thiab cov ntawv thov yuav tsum tau ua.
3. Sib txuam:
- Txhim kho kev sib raug zoo nrog lwm cov khoom xyaw hauv cov qauv tsim yog qhov tseem ceeb rau kev ua tiav cov khoom siv xav tau ntawm lub tsev.
4. Cov Qauv Zoo:
- RDP yuav tsum ua tau raws li cov qauv zoo thiab cov kev qhia tshwj xeeb kom ua tau zoo ib yam thiab txhim khu kev qha hauv kev siv kev siv.
Nws yog ib qho tseem ceeb kom nco ntsoov tias cov txheej txheem tshwj xeeb thiab cov lus qhia kev cai yuav sib txawv ntawm cov tuam txhab tsim khoom thiab cov khoom lag luam. Yog li ntawd, sab laj nrog cov neeg muab khoom thiab kos npe rau lawv cov lus pom zoo yog qhov tseem ceeb rau kev ua tau zoo.
Lub Sijhawm Post: Nov-21-2023