Dab tsi yog redispersible polymer hmoov?

Redispersible polymer hmoov (RPP) yog dawb-ntws, dawb hmoov uas ua los ntawm cov tshuaj tsuag kom qhuav polymer dispersions los yog emulsions. Lawv muaj cov khoom siv polymer uas tau coated nrog cov tshuaj tiv thaiv thiab cov khoom ntxiv. Thaum sib xyaw nrog dej, cov hmoov no tau yooj yim tawg los ua cov khoom siv polymer ruaj khov, ua rau lawv siv tau ntau yam kev siv hauv kev tsim kho, xim thiab txheej, nplaum, thiab lwm yam lag luam.

Kev sib xyaw:

Cov muaj pes tsawg leeg ntawm redispersible polymer hmoov feem ntau muaj xws li cov nram qab no Cheebtsam:

1. Polymer Particles: Cov khoom tseem ceeb ntawm RPP yog cov khoom siv polymer, uas tau muab los ntawm ntau cov khoom siv hluavtaws xws li yas acetate-ethylene (VAE), ethylene-vinyl acetate (EVA), acrylics, styrene-butadiene (SB), lossis polyvinyl acetate ( PVA). Cov polymers no pab txhawb rau cov khoom xav tau thiab kev ua tau zoo ntawm cov khoom kawg.
2. Cov Tshuaj Tiv Thaiv: Txhawm rau tiv thaiv cov khoom siv polymer los ntawm agglomerating thaum lub sij hawm cia thiab tsheb thauj mus los, cov tshuaj tiv thaiv xws li polyvinyl cawv (PVA) los yog cellulose ethers feem ntau siv. Cov neeg ua hauj lwm no ruaj khov rau cov khoom polymer thiab xyuas kom lawv cov redispersibility hauv dej.
3. Plasticizers: Plasticizers tuaj yeem muab ntxiv los txhim kho qhov yooj yim, ua haujlwm tau zoo, thiab adhesion ntawm RPPs. Cov additives no pab txhim kho kev ua tau zoo ntawm cov khoom siv polymer hauv ntau daim ntawv thov, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem yooj yim, cov nplaum, thiab cov sealants.
4. Fillers thiab Additives: Nyob ntawm cov ntawv thov tshwj xeeb, cov khoom ntim, cov xim, cov kab sib txuas sib txuas, cov thickeners, thiab lwm yam khoom ntxiv tuaj yeem muab tso rau hauv RPP cov qauv los txhim kho lawv cov khoom lossis muab cov haujlwm tshwj xeeb.

Properties thiab yam ntxwv:

Redispersible polymer hmoov muaj ntau yam khoom tseem ceeb thiab cov yam ntxwv uas ua rau lawv muaj ntau yam thiab siv dav hauv ntau yam lag luam:

1. Redispersibility: RPP nkag mus rau hauv dej los tsim cov polymer emulsions ruaj khov los yog dispersions, tso cai rau yooj yim koom ua ke rau hauv formulations thiab daim ntawv thov tom ntej.
2. Film-Forming muaj peev xwm: Thaum dispersed nyob rau hauv dej thiab thov mus rau qhov chaw, RPP muaj peev xwm tsim nyias, nruam films thaum ziab. Cov yeeb yaj kiab no txhim kho adhesion, durability, thiab huab cua tiv thaiv hauv cov txheej txheem, cov nplaum, thiab cov sealants.
3. Enhanced Adhesion: RPP txhim kho qhov adhesion ntawm substrates thiab coatings, mortars, los yog adhesives, ua rau muaj zog bonds thiab txhim kho kev ua tau zoo ntawm kev tsim kho thiab cov khoom siv hauv tsev.
4. Kev tuav dej: Lub hydrophilic xwm ntawm RPP ua rau lawv nqus thiab khaws cov dej hauv cov txheej txheem, ua kom dej ntev ntev thiab txhim kho kev ua haujlwm, qhib lub sijhawm, thiab adhesion hauv mortar thiab pobzeb daim ntaub nplaum.
5. Flexibility thiab Toughness: RPP-hloov cov ntaub ntawv nthuav tawm ntau zog, elasticity, thiab toughness, ua rau lawv tiv taus tawg, deformation, thiab kev puas tsuaj.
6. Huab cua Resistance: RPPs txhim kho huab cua tiv thaiv thiab ua haujlwm ntev ntawm cov txheej, sealants, thiab waterproofing membranes, muab kev tiv thaiv ntev tiv thaiv UV hluav taws xob, ya raws, thiab ib puag ncig yam.

Daim ntawv thov:

Redispersible polymer hmoov pom cov ntawv thov hauv ntau qhov kev lag luam thiab cov khoom lag luam, suav nrog:

• Kev tsim kho: Pobzeb nplaum, mortar, grouts, waterproofing membranes, self-leveling compounds, thiab sab nrauv rwb thaiv tsev thiab tiav tshuab (EIFS).
• Xim thiab Txheej: Sab nrauv xim, textured coatings, hniav plasters, thiab architectural coatings.
• Adhesives thiab Sealants: Pobzeb adhesives, tawg fillers, caulks, saj zawg zog sealants, thiab siab-rhiab nplaum nplaum.
• Textiles: Textile coatings, finishing agents, thiab sizing compounds.

redispersible polymer hmoov yog ntau yam thiab multifunctional cov ntaub ntawv siv los txhim kho kev ua tau zoo, durability, thiab versatility ntawm ntau yam khoom thiab formulations nyob rau hauv kev tsim kho, xim thiab txheej, nplaum, textiles, thiab lwm yam industries.