Kuvaka yakakosha hydroxypropyl methyl cellulose kudzivirira kupinza hunyoro kumadziro, kunenge kwakaringana hunyoro hunogona kugara mudhaka simende kuburitsa kuita kwakanaka mumvura uye basa rehydroxypropyl methyl cellulose mudhaka rinogona kuenzana kune viscosity, iyo yakakwirira viscosity yehydroxypropyl methyl cellulose kuchengetedza mvura kuchava nani.
Kamwe hunyoro hwehydroxypropyl methyl cellulose hwanyanya kukwira, kuchengetwa kwemvura kwehydroxypropyl methyl cellulose kunodzikira, uye zvinozotungamira mukubudirira kwekuvaka kwehydroxypropyl methyl cellulose. Isu tinozivawo zvinhu zvichave zviri nyore kuita zvikanganiso, isu tinofanirwa kugara tichiita nyowani, isu tichagamuchira zvisingatarisirwi mhedzisiro.
Iyo inooneka viscosity indekisi yakakosha yehydroxypropyl methyl cellulose. Iyo yakajairika nzira dzekuyera ndeyekutenderera viscosity kuyerwa, capillary viscosity kuyerwa uye kudonha kwema viscosity kuyerwa.
Pakutanga, hydroxypropyl methyl cellulose yakatemwa necapillary viscosity kuyerwa, uchishandisa Uhnscher viscometer. Mushonga wekuyeresa unowanzo gadzirisa mvura ye2, uye fomula ndeiyi: V=Kdt. V ndiyo viscosity mumasekonzi, K ndiyo inogara iri viscometer, D ndiyo density patembiricha isingaperi, uye T ndiyo nguva yainotora kubva kumusoro kusvika kuzasi kweviscometer mumasekonzi. Iyi nzira yekushanda yakanyanya kuoma, kana pane zvinhu zvisingagadziriswi, zviri nyore kukonzera kukanganisa, zvakaoma kuziva hutano hwehydroxypropyl methylcellulose.
Dambudziko rekuvaka glue stratification idambudziko rakakura rinosangana nevatengi. Chekutanga pane zvese, dambudziko rezvigadzirwa zvinofanirwa kutariswa pakuvaka glue stratification. Chikonzero chikuru chekuvaka glue stratification kusapindirana pakati pepolyvinyl doro (PVA) uye hydroxypropyl methylcellulose (HPMC). Chikonzero chechipiri ndechokuti nguva yekusanganiswa haina kukwana; Iko kune zvakare chivakwa cheglue thickening performance haina kunaka.
Mukuvaka glues, instant hydroxypropyl methylcellulose (HPMC) inofanirwa kushandiswa nekuti HPMC inongoparadzirwa mumvura uye hainyatso kunyungudika. Inenge maminetsi maviri, viscosity yemvura inowedzera zvishoma nezvishoma, ichigadzira yakajeka viscous colloid.
Zvigadzirwa zvinopisa zvinonyungudika, mumvura inotonhora, zvinogona kukurumidza kuparadzirwa mumvura inopisa, zvinonyangarika mumvura inopisa, kana tembiricha inodonha kune imwe tembiricha, viscosity inooneka zvishoma nezvishoma, kusvika pakuumbwa kwepachena viscous colloid. Hydroxypropyl methylcellulose (HPMC) muchivako glue yakawedzera huwandu inokurudzirwa 2-4kg.
Hydroxypropyl methyl cellulose (HPMC) muchivako glue kugadzikana kwemakemikari, mildew, mvura yekuchengetedza mhedzisiro yakanaka, uye haina kukanganiswa nekuchinja kwePH, viscosity kubva ku100 000 S - 200 000 S inogona kushandiswa. Asi mukugadzirwa hakusi kwepamusoro viscosity iri nani, iyo viscosity uye chisungo chesimba chinopindirana, yakakwirira iyo viscosity, simba idiki, kazhinji 100,000S viscosity yakakodzera.
Nguva yekutumira: Sep-16-2022