Zotsatira za hydroxypropyl methylcellulose pamatope

Pali zinthu zambiri zomwe zimakhudza kagwiritsidwe ntchito ka hydroxypropyl methylcellulose HPMC muzomangira, makamaka pulasitala yopangidwa ndi gypsum, motere:

1 kusunga madzi

Hydroxypropyl methylcellulose yomanga imalepheretsa kuyamwa kwamadzi kwambiri ndi gawo lapansi, ndipo gypsum ikakhazikika, madziwo ayenera kusungidwa mu pulasitala momwe angathere. Khalidweli limatchedwa kusungirako madzi ndipo limagwirizana mwachindunji ndi kukhuthala kwa njira yopangira hydroxypropyl methylcellulose mu stucco. Apamwamba mamasukidwe akayendedwe a yankho, ndi apamwamba ake madzi posungira mphamvu. Madzi akawonjezeka, mphamvu yosungira madzi idzachepa. Izi ndichifukwa choti madzi ochulukirapo amatsitsa njira ya hydroxypropyl methylcellulose pomanga, zomwe zimapangitsa kuchepa kwa mamasukidwe amphamvu.

2 anti-sagging

Pulasitala yokhala ndi anti-sag properties imalola ogwiritsira ntchito kuti agwiritse ntchito malaya okhuthala popanda kugwedezeka, komanso amatanthauza kuti pulasitalayo si thixotropic, yomwe ingagwere pansi panthawi yogwiritsira ntchito.

3 Kuchepetsa mamasukidwe akayendedwe, zosavuta kumanga

Pulasitala wa gypsum wocheperako komanso wosavuta kupanga atha kupezeka powonjezera zinthu zina zapanyumba za hydroxypropyl methylcellulose. Mukamagwiritsa ntchito magalasi otsika-makamaka a hydroxypropyl methylcellulose, kuchuluka kwa mamasukidwe kumachepetsedwa Kumanga kumakhala kosavuta, koma mphamvu yosungira madzi ya low-viscosity hydroxypropyl methylcellulose yomanga ndi yofooka, ndipo ndalama zowonjezera ziyenera kuwonjezeka.

4 Kugwirizana kwa stucco

Kwa matope owuma okhazikika, ndi ndalama zambiri kuti apange matope apamwamba kwambiri, omwe angapezeke powonjezera madzi ndi mpweya wambiri. Koma kuchuluka kwa madzi ndi mpweya kuthovukira kwambiri