Kuvaka hydroxypropyl methyl cellulose yakakosha kudzivirira kupinda kwehunyoro pamadziro, huchava huwandu hwakakwana hwehunyoro hunogona kugara mumota, simende inoita kuti mvura ishande zvakanaka uye basa rehydroxypropyl methyl cellulose mumota rinogona kuenzana nekunaka kwehunyoro, uye kuchengetwa kwemvura kwehydroxypropyl methyl cellulose kuchava nani.
Kana hunyoro hwehydroxypropyl methyl cellulose hwanyanya kukwira, kuchengetwa kwemvura kwehydroxypropyl methyl cellulose kunodzikira, uye izvi zvinotungamira zvakananga kukushanda zvakanaka kwehydroxypropyl methyl cellulose. Tinozivawo zvinhu zviri nyore kuita zvikanganiso, tinofanira kugara tichigara tiri vatsva, tichawana mhedzisiro isingatarisirwi.
Kuyerwa kwe viscosity kunoonekwa chiratidzo chakakosha chehydroxypropyl methyl cellulose. Nzira dzakajairika dzekuyera ndedzekuyera kutenderera kwe viscosity, kuyerwa kwe capillary viscosity uye kuyerwa kwe fall viscosity.
Kare, hydroxypropyl methyl cellulose yaiongororwa nekuyera capillary viscosity, uchishandisa Uhnscher viscometer. Mhinduro yekuyera inowanzo kuve mhinduro yemvura ye2, uye fomura yacho ndeiyi: V=Kdt. V ndiyo viscosity mumasekonzi, K ndiyo constant yeviscometer, D ndiyo density pakupisa kwakafanana, uye T ndiyo nguva inotora kubva kumusoro kusvika pasi peviscometer mumasekonzi. Nzira iyi yekushanda yakaoma, kana paine zvinhu zvisinganyunguduke, zviri nyore kukonzera zvikanganiso, zvakaoma kuziva mhando yehydroxypropyl methylcellulose.
Dambudziko rekuvaka glue stratification idambudziko guru rinosangana nevatengi. Chekutanga, dambudziko rezvinhu zvisina kugadzirwa rinofanira kutariswa pakuvaka glue stratification. Chikonzero chikuru chekuvaka glue stratification kusawirirana kuripo pakati pepolyvinyl alcohol (PVA) nehydroxypropyl methylcellulose (HPMC). Chikonzero chechipiri ndechekuti nguva yekusanganisa haina kukwana; Panewo kushanda kweglue stratification yekuvaka hakuna kunaka.
Mukugadzira manamati, instant hydroxypropyl methylcellulose (HPMC) inofanira kushandiswa nekuti HPMC inongopararira mumvura chete uye hainyungudike zvechokwadi. Maminetsi angangoita maviri, viscosity yemvura inowedzera zvishoma nezvishoma, zvichiita kuti ive colloid inopenya yakajeka.
Zvigadzirwa zvinonyunguduka zvinopisa, mumvura inotonhora, zvinogona kuparadzirwa nekukurumidza mumvura inopisa, kunyangarika mumvura inopisa, kana tembiricha yadzikira kusvika patembiricha yakati, viscosity inooneka zvishoma nezvishoma, kusvika pagadzirwa colloid inoonekera yakajeka. Hydroxypropyl methylcellulose (HPMC) muglue rekuvaka inokurudzirwa 2-4kg.
Hydroxypropyl methyl cellulose (HPMC) mukuvaka glue chemical stability, mildew, water retention effect yakanaka, uye haikanganisike nekushanduka kwePH, viscosity kubva pa100 000 S - 200 000 S inogona kushandiswa. Asi mukugadzirwa kwayo, viscosity haisi yakakwira, viscosity uye bond strength zvinoenderana, viscosity yakakwira, simba rayo diki, kazhinji viscosity ye100,000S yakakodzera.
Nguva yekutumira: Gunyana-16-2022