Ndi zinthu ziti zomwe zimakhudza kusungidwa kwa madzi kwa hydroxypropyl methyl cellulose?

Kugwiritsa Ntchito Powder Hpmcakhoza uniformly ndi mogwira omwazikana mu simenti matope ndi gypsum zochokera mankhwala, kukulunga zonse particles olimba ndi kupanga wetting filimu. Chinyezi chapansicho chimatulutsidwa pang'onopang'ono pakapita nthawi, ndipo chimakhala ndi hydration reaction ndi inorganic cementitious materials, potero kuonetsetsa mphamvu yomangirira ndi mphamvu yopondereza ya zipangizo.

Choncho, kutentha kwa chilimwe kumanga, kuti tikwaniritse kusungirako madzi, m'pofunika kuwonjezera ndalama zokwanirahydroxypropyl methyl cellulosemolingana ndi chilinganizocho, apo ayi mavuto abwino monga kusakwanira kwa hydration, kuchepa kwa mphamvu, kung'ambika, kutsekeka, kutsekeka, ndi kutsekeka komwe kumachitika chifukwa cha kuyanika mwachangu kudzachitika, komanso kudzawonjezera zovuta za ogwira ntchito yomanga. Pamene kutentha kumachepa, kuchuluka kwa hydroxypropylmethylcellulose kumatha kuchepetsedwa pang'onopang'ono, ndipo zotsatira zofanana zosungira madzi zimatha kupezeka.

Kusungidwa kwa madzi kwa hydroxypropyl methyl cellulose kumatengera kutentha ndi izi:

1. Homogeneity ya hydroxypropyl methyl cellulose

Zofananahydroxypropyl methyl cellulose, Methoxy gulu ndi hydroxypropyl amagawidwa mofanana, ndipo mlingo wosungira madzi ndi wapamwamba.

2. Kutentha kwa HPMC gel osakaniza

Gel yotentha imakhala ndi kutentha kwakukulu komanso kuchuluka kwa madzi osungira; M'malo mwake, kuchuluka kwa kusunga madzi kumakhala kochepa.

3. Hydroxypropylmethylcellulosemamasukidwe akayendedwe

Pamene mamasukidwe akayendedwe aMtengo wa HPMCkuwonjezeka, kuchuluka kwa kusunga madzi kumawonjezekanso; Pamene mamasukidwe akayendedwe afika pamlingo wina, kuwonjezeka kwa kusungirako madzi kumakhala pang'onopang'ono.

4. Kuwonjezera kuchuluka kwa hydroxypropyl methyl cellulose

Kuchulukirachulukira kwa hydroxypropyl methyl cellulose kumapangitsa kuti madzi asungidwe komanso kusungitsa madzi bwino. Pakati pa 0.25-0.6% yowonjezera, kuchuluka kwa madzi osungira madzi kumawonjezeka mofulumira ndi kuwonjezeka kwa ndalama zowonjezera; Pamene kuchuluka kwa madzi kumawonjezeka, kuchuluka kwa madzi osungira kumachepa