Dry-yakavhenganiswa dhaka inoda marudzi akasiyana-siyana emusanganiswa ane maitiro akasiyana ekuita kuti aenderane, uye anogona chete kugadzirirwa kuburikidza nenhamba yakawanda yebvunzo. Zvichienzaniswa zvechinyakare kongiri admixtures, yakaoma-yakavhenganiswa dhaka admixtures anogona chete kushandiswa muupfu chimiro, uye chechipiri, vari soluble mumvura inotonhora, kana zvishoma nezvishoma nyungudika pasi chiito alkali kuti dzishandise yavo yakakodzera mugumisiro.
Basa guru re redispersible latex powder nderekuvandudza kuchengetwa kwemvura uye kugadzikana kwedhaka. Kunyangwe ichigona kudzivirira kuputika kwedhaka (inoderedza mwero wekubuda kwemvura) kune imwe nhanho, haiwanzo shandiswa senzira yekuvandudza kuoma kwedhaka, kutsemuka kuramba uye kuramba kwemvura.
Kuwedzera hupfu hwepolymer hunogona kuvandudza kusamira, kuoma, kutsemuka kuramba uye kukanganisa kuramba kwedhaka nekongiri. Kuita kwe redispersible latex poda yakagadzikana, uye ine mhedzisiro yakanaka pakuvandudza kusimba kwechisungo chedhaka, kuvandudza kusimba kwayo, kuremara, kutsemuka kuramba uye kusamira. Kuwedzera hydrophobic latex poda kunogona zvakare kuderedza zvakanyanya kunyura kwemvura kwedhaka (nekuda kwehydrophobicity yayo), kuita kuti dhaka rifemeke uye kusapinda mumvura, kusimudzira kuramba kwayo kwemamiriro ekunze, nekuvandudza kugara kwayo.
Kuenzaniswa nekuvandudza simba rekushanduka uye simba rekubatanidza redhaka uye kuderedza brittleness yayo, mhedzisiro ye redispersible latex powder pakuvandudza kuchengetwa kwemvura uye kubatana kwedhaka kunogumira. Sezvo kuwedzerwa kwe redispersible latex powder kunogona kupararira uye kukonzera kuwanda kwemhepo-kupinza mumusanganiswa wevhu, maitiro ayo ekuderedza mvura ari pachena. Ehe, nekuda kwechimiro chisina kunaka chemhepo yakaunzwa, iyo yekudzikisa mvura haina kuvandudza simba. Pane zvinopesana, simba revhu richaderera zvishoma nezvishoma nekuwedzera kweiyo redispersible latex powder content. Nokudaro, mukugadzirwa kwemamwe madhaka anoda kufunga nezvekumanikidzika uye kushanduka kwesimba, zvinowanzodiwa kuwedzera defoamer panguva imwe chete kuitira kuderedza kuipa kwe latex powder pane simba rekumanikidza uye kushanduka kwesimba redhaka. .
Nguva yekutumira: Mar-10-2023