Redispersible Polymer: Txhim kho cov khoom lag luam

Redispersible polymer hmoov (RDP) ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua tau zoo ntawm ntau yam khoom, tshwj xeeb hauv cov khoom siv. Nov yog yuav ua li cas RDPs pab txhawb kev txhim kho cov khoom lag luam:

1. Txhim kho Adhesion: RDPs txhim kho qhov adhesion ntawm cov ntaub ntawv tsim kho xws li pobzeb nplaum, mortars, thiab renders rau substrates. Lawv tsim ib qho kev sib raug zoo ntawm cov khoom siv thiab cov substrate, kom ntseeg tau tias lub sij hawm ntev adhesion thiab tiv thaiv delamination los yog detachment.
2. Txhim kho Flexibility thiab Crack Resistance: RDPs txhim kho qhov yooj yim thiab tawg tsis kam ntawm cov ntaub ntawv cementitious xws li mortars thiab self-leveling compounds. Lawv pab txo qis shrinkage thiab tawg los ntawm kev txhim kho cov cohesiveness thiab elasticity ntawm cov khoom, uas ua rau ntau ruaj thiab resilient tsim.
3. Dej Resistance thiab Durability: RDPs txhim kho cov dej tsis kam thiab ua haujlwm ntev ntawm cov ntaub ntawv tsim kho, ua rau lawv tsim nyog rau kev siv sab hauv thiab sab nrauv. Lawv txhim kho cov khoom tiv thaiv kev nkag mus rau dej, khov-thaw mus, thiab huab cua, ncua nws lub neej kev pab cuam thiab tswj kev ua haujlwm zoo.
4. Txhim kho kev ua haujlwm thiab kev siv cov cuab yeej: RDPs txhim kho kev ua haujlwm thiab kev siv cov khoom siv hauv kev tsim kho, ua kom yooj yim sib xyaw, sib kis, thiab ua tiav. Lawv txhim kho qhov ntws thiab sib xws ntawm cov khoom, uas ua rau cov npoo smoother thiab ntau yam ua tiav.
5. Tswj Chaw thiab Kho Lub Sij Hawm: RDPs pab tswj kev teeb tsa thiab kho lub sijhawm ntawm cov khoom siv cementitious, tso cai rau kev ua haujlwm zoo dua thiab txuas ntxiv sijhawm qhib. Lawv tswj cov txheej txheem hydration, ua kom muaj kev kho kom zoo thiab txo qhov kev pheej hmoo ntawm kev teeb tsa ntxov ntxov lossis ziab.
6. Txhim kho Cohesion thiab Strength: RDPs txhim kho kev sib koom ua ke thiab lub zog ntawm cov ntaub ntawv tsim kho, ua rau muaj zog dua thiab ruaj khov ntawm cov qauv. Lawv ntxiv dag zog rau cov khoom siv matrix, ua rau nws lub peev xwm thauj khoom thiab tiv thaiv kev ntxhov siab.
7. Txhim kho khov-thaw ruaj khov: RDPs txhim kho qhov khov-thaw ruaj khov ntawm cov ntaub ntawv cementitious, txo qhov kev pheej hmoo ntawm kev puas tsuaj lossis kev puas tsuaj hauv huab cua txias. Lawv txo qhov ingress ntawm dej thiab tiv thaiv kev tsim ntawm cov dej khov muaju, khaws cia cov khoom ruaj khov thiab kev ua haujlwm.
8. Compatibility nrog Additives: RDPs yog sib xws nrog ntau yam additives uas feem ntau siv nyob rau hauv cov ntaub ntawv siv, xws li accelerators, retarders, thiab air-entraining agents. Qhov no tso cai rau kev hloov pauv hauv kev tsim thiab ua rau kev hloov kho ntawm cov khoom lag luam kom tau raws li cov kev xav tau tshwj xeeb.

Zuag qhia tag nrho, redispersible polymer hmoov ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm ntawm cov khoom siv los ntawm kev txhim kho adhesion, yooj, dej tsis kam, durability, workability, teem sijhawm thiab kho lub sij hawm, cohesion, lub zog, khov-thaw stability, thiab compatibility nrog additives. Lawv txoj kev siv pab txhawb rau kev tsim cov khoom lag luam zoo thiab txhim khu kev qha tsim nyog rau ntau yam kev siv thiab ib puag ncig.