RDP rau phab ntsa phab ntsa putty

RedispersiblePolymer hmoov RDP/VAE, yog ib qho tshwj xeeb emulsion spray drying hmoov ua los ntawm ethylene thiab vinyl acetate copolymer, vim nws muaj peev xwm sib txuas thiab cov khoom tshwj xeeb, xws li: dej tsis kam, kev tsim kho thiab rwb thaiv tsev kub, yog li, muaj ntau yam kev siv.

lub luag hauj lwm ntawm RDPtuaj yeem ua si hauvphab ntsa?

1, txhim kho adhesion thiab mechanical zog ntawmphab ntsa putty. RedispersiblePolymer hmoov RDP/VAENyob rau hauv kev sib cuag nrog dej tuaj yeem tawg sai sai rau hauv emulsion, thiab muaj cov khoom zoo ib yam li thawj emulsion, uas yog, dej evaporation tuaj yeem tsim ib zaj duab xis, zaj duab xis no muaj qhov yooj yim, huab cua tsis kam thiab siab adhesion rau ntau yam substrates.

2, txhim kho cov cohesion ntawmphab ntsa putty, zoo heev alkali tsis kam, hnav tsis kam, nce lub zog flexural.

3, txhim kho cov dej tsis kam thiab permeability ntawmphab ntsa putty.

4, txhim kho cov dej tuav ntawmphab ntsa putty, nce lub sijhawm qhib.

5, txhim kho qhov cuam tshuam tsis kam thiab txhim kho cov kav ntev ntawmphab ntsa putty.

In phab ntsa puttyua tauRedispersible polymer hmoovyog ib qho tseem ceeb heev additive, feem ntau hais lus, lub puab phab ntsa putty yuav muab ntxiv los yog tsis. Tab sis nyob rau sab nrauv phab ntsaphab ntsa puttyyuav tsum tau ntxiv nyob rau hauv lub dispersion ntawmpolymer hmoov, tuaj yeem nyob rau hauv dispersion ntawmpolymer hmoovntawmphab ntsa puttymuaj zoo toughness thiab lig zog, los tiv thaiv qhov tshwm sim ntawm lig hmoov thiab lwm yam teeb meem.

Cov neeg siv khoom feem ntau nug cov lus nug txogphab ntsa putty, zoo liphab ntsa puttyyooj yim tshem tawm hmoov, hmoov hnyav, lossis lub zog me me thiab lwm yam. Txhua tus paub uaphab ntsa puttyyuav tsum tau ntxiv cellulose ether, ntau cov neeg siv tsis ntxiv redispersiblepolymer hmoov. Vim nws yuav nce tus nqi ntawmphab ntsa putty, yog li thiaj li yuav txuag tau tus nqi, ntau tus neeg siv khoom tsis ntxiv, qhov no yog vim li cas putty yog ib qho yooj yim rau hmoov cov teeb meem tseem ceeb!

Celluloseethertuaj yeem nqus dej noo thaum nws nthuav dav los ntawm dej. Lub luag haujlwm tseem ceeb ntawm cellulose yog khaws cov dej, tab sis nws yuav maj mamRDPhmoov tom qab lub sij hawm ntev. Hom putty no yog xoob, dej nqus tus nqi siab, hmoov yooj yim, tsis muaj zog, tsis muaj elasticity. Txhawm rau txhim kho putty saum toj no cov teeb meem tuaj yeem kho cov qauv putty, qhov tsim nyog ntxiv ntawm qee qhov dispersedpolymer hmoovlos txhim kho lub zog lig ntawm lubphab ntsa putty.

Putty hauv cov txheej txheem ntau lawm yog tias koj tuaj yeem ntxiv txausRetawgiab polymer hmoov, los yog siv qib qis putty tshwj xeebpolymer hmoov, dab tsi cuam tshuamyuav phab ntsa puttymuaj?

phab ntsa puttytuaj yeem nyob hauvRedispersible polymer hmoov RDP / VAEntxiv tsawg dua, qhov kev ua tau zoo tshaj plaws yog putty txheej xoob, nto hmoov av, tsis zoo leveling, nws yog ib qho nyuaj rau tsim ib tug tuab zaj duab xis. Cov phab ntsa no yog tev tawm, hlwv, tev, tawg thiab lwm yam tshwm sim. Yog qhov qis duaphab ntsa puttyyog xaiv, phab ntsa yuav tsim cov pa phem, xws li formaldehyde thiab lwm yam kev puas tsuaj rau tib neeg lub cev yog pom tseeb.

Yog li ntawd, lub premise ntawm high qualityphab ntsa puttyntau lawm yog xaiv ib tug zoo hydroxypropyl methyl celluloseHPMCthiab redispersiblePolymer hmoov RDPthiab lwm yam khoom siv ntxiv los tsim cov khoom ntsuab.