Hydroxypropyl MethylCellulose (HPMC)

Hydroxypropyl methyl cellulose (HPMC) ili ndi makulidwe abwino kwambiri ndipo imatha kugwiritsidwa ntchito ngati anti-dispersant ya konkriti.HPMC yakhala ikugwiritsidwa ntchito kwambiri pantchito yomanga.Anti-dispersion test Anti-dispersant ndi ndondomeko yofunikira yaukadaulo yoyezera mtundu wa anti-dispersant.

HPMC ndi madzi sungunuka polima pawiri, amatchedwanso madzi sungunuka utomoni kapena madzi sungunuka polima, ndi kuonjezera kugwirizana kwa kusakaniza madzi ndi kuonjezera mamasukidwe akayendedwe a osakaniza, ndi hydrophilic polima zakuthupi, akhoza kupasuka m'madzi ndi kupanga yankho. kapena kubalalitsidwa.Zitha kuwoneka kuti kuchuluka kwa naphthalene mndandanda wothandiza kuchepetsa wothandizila wamadzi kumawonjezeka, kuphatikizika kwa madzi ochepetsa kuchepetsa kumachepetsa kufalikira kwa matope atsopano osakanikirana a simenti.

Ichi ndi chifukwa naphthalene dongosolo bwino madzi kuchepetsa wothandizila wa surfactant, pamene reducer madzi anawonjezera matope, madzi kuchepetsa wothandizila pamwamba pa simenti particles pamwamba ndi mlandu womwewo, ndi repulsion magetsi zimapangitsa simenti particles kupanga flocculation dongosolo. imalekanitsidwa, madzi otulutsidwa mumpangidwewo, adzachititsa gawo lina la kutaya madzi a simenti.Panthawi imodzimodziyo, ndi kuwonjezeka kwa kusakaniza kwa HPMC, kubalalitsidwa kwa matope atsopano a simenti kuli bwino komanso bwino.