Kupititsa patsogolo zotsatira za hydroxypropyl noth cellulose pazinthu za simenti

Hydroxypropyl methyl cellulose

Kukhazikitsa mayeso

Nthawi yofikira konkriti imagwirizana ndi nthawi ya nthawi ya simenti, yophatikizika si yayikulu, kotero kuti isakanikitse kwa nthawi ya matope Chiwerengero cha simenti-cha simenti chimafunikira kukonzedwa.

HPMC ndi kapangidwe ka macromolecule, ndi gulu la hydroxyl pa gulu la magwiridwe antchito, omwe amatha kupanga ma hydrogen ndi mamolekyulu osakaniza ndi mawotchi akusakaniza. Maunyolo a HPMC atakhala ma utoto atakondana, kotero kuti ma molekyulu a HPMC amachepetsa wina ndi mnzake kuti apange mawonekedwe a netiweki, simenti, kusakaniza madzi okutidwa. Chifukwa HPMC imapanga mawonekedwe a network ofanana ndi filimu yowonda komanso yolimbana ndi simenti, imalepheretsa kusinthika kwa matope, kulepheretsa kapena kuchepetsa kuchepa kwa simenti.

Madzi akukwirira

Zowonjezera zam'madzi ndizofanana ndi konkriti, zomwe zimayambitsa kukhazikika kwamadzi, ndikupangitsa kuti gawo lalikulu la mathithi azikhala ndi pulasitiki wambiri kapena kutsutsana ndi malo oyambira, ndipo mphamvu ya osanjikiza pamtunda ndi ofooka. Kuchokera pakuyesera, zitha kuonedwa kuti kuchuluka kwa kusakaniza kuli pamwamba pa 0,5%, palibe chopota madzi. Izi zili choncho chifukwa HPMC ikasakanikirana, HPMC ili ndi mapangidwe a filimu ndi ma netiweki, komanso adsorption ya hydroleclession ndi matope a thupi. Pambuyo kuwonjezera hpmc ku malipoti kachiwiri, thovu zambiri zodziyimira palokha lipangidwe. Maguluwa adzagawidwa moyenera mu matope ndikulepheretsa kuchepa kwa ophatikizika. HPMC yomwe imagwira ntchito ya simenti ya simenti imakhudza kwambiri, nthawi zambiri imagwiritsidwa ntchito pokonzekera matope owuma, nthawi zambiri matope owuma ndi simenti ina yatsopano yophatikizika, kuti ikhale yosungirako madzi.