Txheej txheem cej luam ntawm Re-Dispersible polymer hmoov

Re-dispersible polymer hmoov (RDP) yog ib hom khoom siv polymer uas tau siv dav hauv kev tsim kho kev lag luam. Nws yog cov hmoov dawb los yog dawb dawb uas yog tsim los ntawm cov tshuaj tsuag kom qhuav polymer emulsions. Cov hmoov nplej tau yooj yim sib xyaw nrog dej los ua ib qho kev ncua kev ruaj ntseg uas tuaj yeem siv los ua cov ntawv nplaum, nplaum, lossis txheej.

RDPs feem ntau yog siv nyob rau hauv ntau yam kev tsim kho, nrog rau cov pobzeb nplaum, grouts, self-leveling compounds, thiab sab nrauv rwb thaiv tsev thiab xov tshuab (EIFS). Lawv kuj tseem siv rau hauv kev tsim cov pob zeb qhuav, uas yog cov khoom sib xyaw ua ntej ntawm cov cement, xuab zeb, thiab lwm yam khoom siv los ua pob zeb, plaster, thiab lwm yam khoom siv hauv tsev.

Cov khoom ntawm RDPs tuaj yeem sib txawv nyob ntawm seb hom polymer siv, nrog rau cov txheej txheem tsim khoom. Txawm li cas los xij, feem ntau, RDPs muaj cov yam ntxwv hauv qab no:

1. Lub zog ruaj khov: RDPs tuaj yeem tsim cov ntawv cog lus muaj zog nrog ntau yam substrates, suav nrog pob zeb, ntoo, thiab hlau.

2. Dej tsis kam: RDPs muaj kev tiv thaiv zoo rau cov dej, uas ua rau lawv zoo tagnrho rau kev siv hauv qhov chaw ntub dej.

3. Flexibility: RDPs tuaj yeem tsim tau kom hloov tau, uas tso cai rau lawv tiv taus kev ntxhov siab thiab txav mus los yam tsis muaj kev tawg lossis tawg.

4. Kev ua haujlwm zoo: RDPs tuaj yeem yooj yim tov nrog dej los ua kom muaj kev sib tw, ua haujlwm tau zoo lossis raug ncua.

5. Zoo adhesion: RDPs tuaj yeem sib raug zoo rau ntau yam substrates, nrog rau cov ntxeem tau thiab tsis ntxeem tau.

6. Cov tshuaj tiv thaiv zoo: RDPs tiv taus ntau yam tshuaj, nrog rau cov kua qaub, cov hauv paus, thiab cov kuab tshuaj.

Muaj ntau ntau hom RDPs muaj nyob rau hauv kev ua lag luam, txhua tus muaj nws tus kheej cov khoom thiab cov yam ntxwv. Qee yam uas feem ntau muaj xws li:

1. Ethylene-vinyl acetate (EVA) copolymers: Cov RDPs no tau hloov tau zoo heev thiab muaj qhov zoo heev adhesion rau ntau yam substrates. Lawv feem ntau siv rau hauv pobzeb nplaum, grouts, thiab EIFS.

2. Vinyl acetate-ethylene (VAE) copolymers: Cov RDPs no yog cov dej-resistant thiab muaj adhesion zoo rau ntau yam substrates. Lawv feem ntau siv rau sab nrauv rwb thaiv tsev thiab ua tiav tshuab (EIFS), nrog rau hauv cov nplais nplaum thiab grouts.

3. Styrene-butadiene (SB) copolymers: Cov RDPs no tau hloov tau zoo heev thiab muaj kev ua tau zoo heev rau ntau yam substrates. Lawv feem ntau siv rau hauv pobzeb nplaum, grouts, thiab EIFS.

4. Acrylics: Cov RDPs no yog cov dej-resistant thiab muaj adhesion zoo rau ntau yam substrates. Lawv feem ntau siv rau sab nrauv rwb thaiv tsev thiab ua tiav tshuab (EIFS), nrog rau hauv cov nplais nplaum thiab grouts.

5. Polyvinyl cawv (PVA): Cov RDPs no yog cov dej-soluble heev thiab muaj adhesion zoo rau ntau yam substrates. Lawv feem ntau siv nyob rau hauv qhuav-mix mortars thiab ua ib tug binder nyob rau hauv daim ntawv txheej.

Ntxiv rau lawv cov kev siv hauv kev tsim kho kev lag luam, RDPs kuj tau siv ntau yam kev siv, suav nrog:

1. Textile coatings: RDPs tuaj yeem siv los ua cov txheej txheem rau textiles los txhim kho lawv cov dej tsis kam thiab kav ntev.

2. Cov xim thiab cov txheej txheem: RDPs tuaj yeem siv los ua cov ntawv khi hauv cov xim thiab cov txheej txheem los txhim kho lawv cov adhesion thiab dej tsis kam.

3. Adhesives: RDPs tuaj yeem siv los ua cov ntawv nplaum hauv cov nplaum los txhim kho lawv lub zog thiab dej tsis kam.

4. Cov khoom siv tu tus kheej: RDPs tuaj yeem siv rau hauv cov khoom tu tus kheej, xws li cov plaub hau gels thiab cov tshuaj pleev ib ce, txhawm rau txhim kho lawv cov kev ntxhib los mos thiab ruaj khov.

Zuag qhia tag nrho, re-dispersible polymer hmoov yog ntau yam khoom siv thiab tseem ceeb hauv kev tsim kho kev lag luam thiab tshaj. Nrog lawv cov khoom tshwj xeeb thiab ntau yam kev siv, lawv paub tseeb tias yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv ntau qhov kev lag luam rau xyoo tom ntej.