Polymer Modifiers

Polymer modifiers yog cov khoom siv ntxiv rau cov polymers los txhim kho lawv cov kev ua tau zoo los yog muab cov khoom tshiab. Muaj ntau hom kev hloov pauv polymer, suav nrog cov khoom ntim, cov yas yas, cov kab sib txuas sib txuas, thiab cov tshuaj reactive diluents, thiab lwm yam. Ib hom kev hloov pauv polymer uas feem ntau siv hauv cov khoom siv yog Redispersible Polymer Powder (RDP).

Redispersible Polymer Powder (RDP) yog ib hom kev hloov pauv polymer uas siv rau hauv cov khoom siv xws li cementitious mortars, pobzeb nplaum, thiab cov khoom sib xyaw ua ke. Nws yog tsim los ntawm cov tshuaj tsuag kom qhuav ib qho sib xyaw ntawm polymer emulsion thiab kev tiv thaiv colloid, thiab nws feem ntau yog raws li cov yas acetate-ethylene (VAE) lossis ethylene-vinyl acetate (EVA) copolymer.

RDP yog cov hmoov dawb dawb, uas tuaj yeem hloov pauv tau yooj yim hauv dej. Thaum nws yog tov nrog dej thiab cementitious cov ntaub ntawv, nws tsim ib tug ruaj khov, saj zawg zog, thiab check zaj duab xis uas txhim kho cov khoom ntawm cov khoom siv. Qee qhov txiaj ntsig ntawm kev siv RDP ua cov hloov pauv polymer suav nrog:

1. Txhim kho kev ua haujlwm: RDP txhim kho kev ua haujlwm ntawm cov ntaub ntawv cementitious los ntawm kev txo cov dej ntsiab lus thiab txhim kho rheology. Qhov no ua rau kom zoo dua adhesion, tuav tau yooj yim dua, thiab txo qhov tawg.
2. Ua kom muaj zog: RDP txhim kho lub zog thiab ua haujlwm ntev ntawm cov ntaub ntawv cementitious los ntawm kev ua kom muaj zog ntawm daim ntawv cog lus thiab txo cov permeability. Qhov no ua rau cov khoom siv ruaj khov thiab ruaj khov dua.
3. Kev tiv thaiv zoo dua rau cov dej thiab tshuaj: RDP txhim kho qhov kev tiv thaiv ntawm cov ntaub ntawv cementitious rau dej thiab tshuaj los ntawm kev txo cov porosity thiab txhim kho impermeability. Qhov no ua rau cov khoom siv tsis muaj dej tsis zoo thiab tshuaj lom neeg ntau dua.
4. Adhesion zoo dua: RDP txhim kho adhesion ntawm cementitious cov ntaub ntawv rau ntau yam substrates, xws li pob zeb, masonry, thiab ntoo. Qhov no ua rau muaj kev ruaj khov thiab ruaj khov ntawm cov khoom siv thiab cov substrate.

RDP yog siv nyob rau hauv ntau yam khoom siv, xws li:

1. Cementitious mortars: RDP yog siv rau hauv cov cementitious mortars xws li pobzeb nplaum, grouts, thiab renders. Nws txhim kho kev ua haujlwm, lub zog, thiab ua haujlwm ntev ntawm cov ntaub ntawv no, ua rau muaj kev ua tiav zoo dua thiab ua haujlwm ntev dua.
2. Self-leveling tebchaw: RDP yog siv nyob rau hauv tus kheej-leveling tebchaw los txhim kho lawv cov ndlwg thiab leveling zog. Nws kuj txhim kho lawv lub zog thiab durability, uas ua rau kev ua tiav zoo dua.
3. Gypsum-based khoom: RDP yog siv rau hauv cov khoom siv gypsum xws li kev sib koom ua ke thiab plasters. Nws txhim kho kev ua haujlwm, lub zog, thiab ua haujlwm ntev ntawm cov khoom no, ua rau kom muaj kev ua tiav zoo dua thiab ua haujlwm ntev dua.
4. Cov ntaub ntawv rwb thaiv tsev: RDP yog siv rau hauv cov ntaub ntawv insulating xws li thermal mortars thiab coatings. Nws txhim kho cov adhesion, lub zog, thiab durability ntawm cov ntaub ntawv no, ua rau muaj kev rwb thaiv tsev zoo dua thiab kev ua neej ntev dua.

Hauv kev xaus, Redispersible Polymer Powder (RDP) yog ib hom kev hloov pauv polymer uas feem ntau siv hauv cov khoom siv los txhim kho lawv cov khoom. Nws txhim kho kev ua haujlwm, lub zog, thiab ua haujlwm ntev ntawm cov ntaub ntawv cementitious, uas ua rau muaj kev ua tiav zoo dua thiab ua haujlwm ntev dua. RDP yog siv rau hauv ntau yam khoom siv xws li cementitious mortars, self-leveling compounds, thiab gypsum-based khoom, thiab lwm yam.