Hydroxypylm methylcellulose (hpmc) gypsum-plaster ndi mankhwala a gypsum

Hydroxypropyl methylcellulose (hpmc), monga etherse yofala, imagwiritsidwa ntchito pomanga zida zomangira, makamaka mu gypsum zopangidwa ndi gypsum. HPMC ili ndi madzi abwino osungunuka, kukula, kusungidwa kwamadzi ndikupanga mafilimu, chifukwa chake amatenga gawo lofunikira pakupanga kwa gypsum.

Zoyambira za hydroxypropyl methylcellulose (hpmc)
HPMC ndi ma cellulose a ether ether, dzina lake ma hydroxpyl ndi methyl magulu pa cellulose molekyulu. Zoyambira zake zimaphatikizapo:

Kusungunuka: HPMC imatha kusungunuka mwachangu m'madzi ozizira kuti apange yankho la colloidal kapena pang'ono.
Kukula: HPMC ili ndi mphamvu yabwino kwambiri ndipo imatha kuwonjezera mafayilo a yankho.
Kusunga kwamadzi: HPMC imatha kukhala yonyowa kwa nthawi yayitali pomwe madzi amatuluka, kupewetsa madzi kuti asatayike mwachangu kwambiri.
Kupanga filimu: HPMC imatha kupanga filimu yosinthika komanso yowoneka bwino mutayanika.
Makhalidwe awa amapangitsa kuti hpmc ikhale yofunika kwambiri mu gypsum-plaster and gypsum zinthu.

Kugwiritsa ntchito HPMC mu gypsum-porster
Pulasiti ya gypsum ndi mankhwala okonda ku Gypsum ndi kunja kwa mpanda wamakoma mu nyumba zamakono, makamaka opangidwa ndi gypsum gypsum, ophatikizidwa ndi zowonjezera zosiyanasiyana. Kugwiritsa ntchito HPMC mu gypsum-positi ya gypsum kumawonekera makamaka muzinthu zotsatirazi:

Kukula Kwakukulu: HPMC imatha kuwonjezera mawidwe a pulasitala ya gypsum-yochokera ku gypsum-yogwira ntchito kwambiri pomanga ndikuletsa kusamba ndi kusanja.
Zotsatira za madzi: Chifukwa cha kuchuluka kwa magwiridwe antchito a HPMC, madzi osinthika a gypsum - akuchepetsa madzi okwanira potenga nawo gawo komanso kulimba mphamvu.
Kuwongolera magwiridwe antchito: HPMC imatha kusintha ufiti ndi madzi a pulasitala yochokera ku gypsum-yochokera ku gypsum - ndikupangitsa kukhala kosavuta kufalikira ndi kusalala pakumanga, kumachepetsa zovuta zomanga.
Kukana Kukana: Powonjezera kusinthasintha kwa pulasitala, HPMC kumatha kuchepetsa kuwonongeka chifukwa cha shrinkage ndikuwonjezera moyo wa ntchito zokongoletsera.

Kugwiritsa ntchito HPMC muzogulitsa gypsum
Kuphatikiza pa ntchito yake mu pulasitala ya gypsum, hpmc imagwiritsidwanso ntchito kwambiri m'malo osiyanasiyana a gypsum, monga gypsum mizere, gypsum mitundu ya ma gpppe amathanso kubweretsa zotsatirazi zotere:

Kusintha ndi kukulira: Kuwonjezera hpmc ku gypsum slurry kumatha kusintha ma vinyato ndi thixotropy, kumachepetsa mafuta ndi zilema, ndikusintha chinthu cha chomaliza.
Kusintha ndi mphamvu: Kanemayo makina opangidwa ndi HPMC panthawi yolimba imatha kuwonjezera kusinthasintha komanso kuwonongeka kwa zinthu za gypsum ndikuchepetsa kunyamula ndi kukhazikitsa.
Sinthani kusungitsa kwamadzi: HPMC imatha kukhalabe ndi chinyezi kwa nthawi yayitali pazinthu zowuma kwa gypsum zinthu, kupewa kuwonongeka ndi kusokonekera komwe kumayambitsidwa ndi kuyanika kwambiri.
Kupanga yunifolomu: HPMC imatha kupangitsa kuti gypsum slurry imagawidwanso mu nkhungu, kusintha kachulukidwe kazinthu, ndikuwonetsetsa kuti mulingo.

Kugwiritsa ntchito hydroxypropyl methylcellulose (hpmc) mu gypsum-positi ya gypsum ndi maubwino othandiza. Posintha kukula, kusungidwa kwamadzi, kupanga mafilimu ndi zinthu zina, hpmc sikumangosintha njira yomangayi komanso yomaliza ntchito, komanso imapereka moyo wa mankhwala a gypsum. Mu kafukufuku wamtsogolo ndi chitukuko ndi kugwiritsa ntchito zida zomangira, hpmc, monga owonjezera othandiza, ipitilizabe kusewera mbali yake yapadera ndikupereka zopereka zazikulu pakukula kwa makampani omanga.