Chii chinonzi hpmc ye gypsum plaster?

Hydroxyprusyl methylcellose (HPMC) inoita basa rakakosha mukuvandudza maitiro uye zvivakwa zve gypsum plaster. Izvi zvinowedzera zvinowedzera zvinoshanda mabasa akasiyana siyana, zvinopa mukushanda, kudenha, kudzokorora kwemvura, uye hunhu hwese hweplaster.

Chemical chimiro uye zvivakwa:
HpMC ndeyemhuri ye cellulose etana, iyo inotorwa kubva ku cellulose, chiitiko chomuzvarirwo chinoitika chinowanikwa mumasango emadziro. Kuburikidza nemakemikari kugadziridzwa, hydroxyprusyl uye methyl mapoka anounzwa muCellulose Backbone, zvichikonzera kuumbwa kweHPMC. Uku kushandurwa kunopa zvivakwa zvakasarudzika kuHPMC, kusanganisira kusanganisa kwemvura, iyo-fermal gelation, yemafirimu ekuumba kugona, uye hunhu hwakakura.

Kugadzira Maitiro:
Kugadzirwa kweHPMC kunosanganisira matanho akati wandei. Pakutanga, cellulose inobviswa kubva pane zvikafu zvirimwa zvakaita sehuni dzemapuranga kana machira. Pashure pacho, iyi cellulose inowedzera kuwedzerwa, uko hydroxypruppropyl uye methyl mapoka akasungirirwa kune hydroxyl (-oh) mapoka anoshanda emamolelose mamorekuru. Dhigirii rekutsiva Pakupedzisira, Hpmc inokonzerwa neHPMC yakanatswa, yakaoma, uye yakagadziriswa mumakirogiramu akasiyana siyana akakodzera kushandiswa kwakasiyana.

Chikumbiro muGypsum Plaster:
HPMC inoshandiswa zvakanyanya seinowedzera muGypsum Plaster fomu nekuda kwenzvimbo yayo yakawanda yezvivakwa. Kana ikasanganiswa mumusanganiswa weplaster, HPMC zviito senge rheology modifier, kudzora viscosity uye kuyerera maitiro eiyo slurry. Izvi zvinowedzera kushanda kweiyo plaster, kubvumira kuve nyore kushandisa uye kupedza kupedza.

Uyezve, Hpmc inoshanda seyekuchengetwa kwemvura mumiririri, kuderedza kurasikirwa kwemvura panguva yekugadzika uye kuomesa matanho. Hydration iyi yakareba inosimudzira kurapwa kwakaringana kweplaster, inotungamira kusimbisa simba uye kusimba kwechigadzirwa chakapera. Pamusoro pezvo, HPMC inovandudza kudenha yePlaster kune dzakasiyana-siyana substrates

Zvakanakira HPMC muGypsum Plaster:
Kuvandudzwa Kurovedza: HPMC inopa iyo crosy yekuenderana nemusanganiswa weplaster, zvichiita kuti zvive nyore kuparadzira nekunyorera panguva yekushandisa.
Kuwedzerwa Kwekuchengetwa Kwevema
Superior Dambudziko: HPMC inosimudzira kusimba kwakasimba pakati peplaster uye substrate, kudzivirira kuumbwa uye kuona kutendeseka kwenguva refu.
Kudzora Kugara Nguva: Kuvapo kweHPMC kunobatsira kudzora nguva yekuisa nguva yeGypsum Plaster, kubvumira nguva yakakwana yekushanda pasina kusagadzikana pakuomesa kwekupedzisira.
Crack Kudzivisa: HPMC inobatsira kubatana kwemusanganiswa weplaster, kuderedza kuitika kwekudzikira kwemarara uye nekuvandudza iyo yekupedzisa kupedzisa.

HydroxyPropyl methylcellose (HPMC) inokosha inowedzera muGypsum Plaster Foraster, inopa huwandu hwakawanda hwezvakanakira zvinobatsira pakugadzirisa maitiro uye kunaka. Basa rayo seRheology Modifier, Rates Recentirnation, uye Designation Rumpoter inokatyamadza muindasitiri yekuvaka, uko gypsum plaster yakawedzera kushandiswa kwekupedza kwemukati. Nekunzwisisa zvimiro zvemakemikari uye zvinoshanda zveHPMC, vagadziri uye vagadziri vechiremba vanogona kurongedza mafambiro epurasta kuti vasangane zvakanyatsoita zvinodiwa uye kuwana mibairo yepamusoro.