RDP (Redispersible Polymer Powder) yog cov hmoov additive uas feem ntau siv hauv cov khoom siv, tshwj xeeb tshaj yog nyob rau hauv cov khoom siv cement xws li mortars, adhesives thiab pobzeb grouts. Nws muaj cov polymer resins (feem ntau yog raws li vinyl acetate thiab ethylene) thiab ntau yam additives.
RDP hmoov feem ntau yog siv rau cov hom phiaj hauv qab no:
Txhim kho Flexibility thiab Durability: Thaum ntxiv rau cov ntaub ntawv cementitious, RDP nce lawv qhov yooj, elasticity thiab tawg tsis kam. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas cov ntaub ntawv raug txav los yog kev co, xws li cov nplais nplaum los yog plastering sab nrauv.
Txhim kho Adhesion: RDP ua kom muaj zog ntawm cov cement-based cov ntaub ntawv thiab cov substrates xws li pob zeb, ntoo, pobzeb lossis rwb thaiv tsev. Nws txhim kho adhesion thiab txo qhov kev pheej hmoo ntawm delamination lossis sib cais.
Kev tuav dej: RDP pab khaws cov dej hauv cov cement sib tov, tso cai rau dej kom zoo ntawm cov cement thiab ua kom lub sijhawm ua haujlwm ntawm cov khoom siv. Qhov no muaj txiaj ntsig zoo hauv cov ntawv thov uas txuas ntxiv lub sijhawm ua haujlwm lossis kev ua haujlwm zoo dua yuav tsum tau ua.
Ua kom muaj peev xwm ua haujlwm tau zoo: RDP txhim kho cov dej ntws thiab kev sib kis ntawm cov khoom siv cement, ua kom yooj yim sib tov, tuav thiab siv tau. Nws txhim khu kev ua haujlwm ntawm cov mortar thiab txo cov haujlwm uas yuav tsum tau ua thaum tsim kho.
Muaj feem cuam tshuam rau Lub Sijhawm Teeb Meem: RDP tuaj yeem cuam tshuam rau lub sijhawm teeb tsa ntawm cov ntaub ntawv cementitious, tso cai rau kev tswj hwm ntau dua ntawm cov txheej txheem teeb tsa. Nws tuaj yeem pab nce lossis txo lub sijhawm teeb tsa xav tau rau ib daim ntawv thov tshwj xeeb.
Txhim Kho Dej Resistance: RDP txhim kho cov dej tsis kam ntawm cov khoom siv cement, ua rau lawv tiv taus dej ntau dua thiab ua kom lawv cov kav ntev hauv qhov chaw ntub dej lossis ntub dej.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov khoom tshwj xeeb thiab kev ua haujlwm ntawm RDP hmoov yuav txawv nyob ntawm seb muaj pes tsawg leeg ntawm cov khoom siv polymer, qhov loj me, thiab lwm yam. Cov tuam txhab sib txawv tuaj yeem muab cov khoom lag luam RDP nrog cov yam ntxwv sib txawv raws li cov ntawv thov tshwj xeeb.
Zuag qhia tag nrho, RDP hmoov yog multifunctional additive rau kev tsim kho cov ntaub ntawv uas txhim khu kev yooj yim, adhesion, processability, dej tsis kam thiab durability ntawm cement-based khoom.
Post lub sij hawm: Jun-07-2023