RDP yemadziro emadziro putty

RedispersiblePolymer hupfu RDP/VAE, ndiyo yakakosha emulsion spray drying powder yakagadzirwa ne ethylene uye vinyl acetate copolymer, nekuda kwekukwanisa kwayo kusungirirwa kwepamusoro uye zvinhu zvakasiyana-siyana, zvakadai se: kudzivirira kwemvura, kuvaka uye kupisa kwekushisa, saka, ine zvakawanda zvakasiyana-siyana zvekushandisa.

basa rei yeRDPinogona kutamba mukatiwall putty?

1, kunatsiridza adhesion uye michina zvinhu zvewall putty. RedispersiblePolymer hupfu RDP/VAEmukubatana nemvura inogona kukurumidza kupararira mu emulsion, uye ine zvinhu zvakafanana nekutanga emulsion, ndiko kuti, kubuda kwemvura kunogona kuumba firimu, iyi firimu ine kushanduka kwepamusoro, kukwirira kwemamiriro ekunze uye kunamatira kune zvakasiyana-siyana zve substrates.

2, kuvandudza kubatana kwewall putty, yakanakisa alkali kuramba, kupfeka kuramba, kuwedzera flexural simba.

3, kuvandudza kudzivirira kwemvura uye kupera kwewall putty.

4, kunatsiridza kuchengetwa kwemvura kwewall putty, wedzera nguva yekuvhura.

5, kunatsiridza kukanganisa kupikisa uye kuwedzera kusimba kwewall putty.

In wall puttyanogonaRedispersible polymer hupfuchinhu chakakosha chekuwedzera, kazhinji kutaura, iyo yemukati madziro putty inogona kuwedzerwa kana kwete. Asi mumadziro ekunzewall puttyinofanira kuwedzerwa mukuparadzirwa kwepolima hupfu, inogona kunge iri mukupararira kwepolima hupfupawall puttyane kuoma kwakanaka uye kunonoka simba, kudzivirira kuitika kwehupfu hwekupedzisira uye mamwe matambudziko.

Vatengi vanowanzobvunza mibvunzo nezvewall putty, zvakaita sewall puttynyore kubvisa hupfu, hupfu hwakakomba, kana simba idiki uye zvichingodaro. Vese vanoziva kuitawall puttyinoda kuwedzera cellulose ether, vashandisi vazhinji havawedzere redispersiblepolima hupfu. Nekuti ichawedzera mutengo wewall putty, saka kuitira kuchengetedza mutengo, vatengi vazhinji havawedzere, ichi ndicho chikonzero putty iri nyore kuita hupfu dambudziko remhando yepamusoro!

Celluloseetherinogona kutora mwando kana ichiwedzerwa nemvura. Basa guru re cellulose kuchengetedza mvura, asi zvishoma nezvishomaRDPupfu mushure menguva yakareba. Rudzi urwu rweputty rwakasununguka, mwero wekunyudzwa kwemvura wakakwira, hupfu huri nyore, hauna simba, hauna elasticity. Kuvandudza putty pamusoro pezvinetso zvinogona kugadzirisa putty formula, iyo yakakodzera yekuwedzera yevamwe vakapararirapolima hupfukuvandudza simba rekupedzisira rewall putty.

Putty mukugadzira maitiro kana iwe uchikwanisa kuwedzera zvakakwanaRevanoparadziraible polima hupfu, kana kushandisa yakaderera-giredhi putty yakakoshapolima hupfu, zvaita seiwill wall puttyhave ?

wall puttyanogona kuva muRedispersible polymer poda RDP/VAEkuwedzera zvishoma, iyo yakanyanya kujeka kuita ndeye putty layer yakasununguka, hupfu hwepamusoro, kusaenzana kwakashata, zvakaoma kuumba dense firimu. Mudhuri uyu unowanzo kupenengura, kuputika, kutsemuka, kutsemuka uye zvimwewo zvinoitika. Kana yakadererawall puttyinosarudzwa, rusvingo ruchabudisa magasi anokuvadza, akadai se formaldehyde uye kumwe kukuvadzwa kwemuviri womunhu kunooneka.

Naizvozvo, chirevo chemhando yepamusorowall puttykugadzirwa ndiko kusarudza yakanaka hydroxypropyl methyl celluloseHPMCuye inoparadzirwa zvakarepolymer poda RDPuye zvimwe zvigadzirwa zvinowedzera kugadzira zvigadzirwa zvakasvibirira.