Musiyano Pakati peCMC neHEMC

Carboxymethylcellulose (CMC) uye Hydroxyethyl methylcellulose (HEMC) marudzi maviri ezvinobuda muselulosi anowanzoshandiswa mumaindasitiri akasiyana siyana, kusanganisira maindasitiri ezvekudya nemishonga. Ose CMC neHEMC mapolymer anonyungudika nemvura anobva muselulosi, asi ane zvimiro zvakasiyana uye anoshandiswa kune akasiyana maapplication. Muchinyorwa ichi, tichaongorora mutsauko uripo pakati peCMC neHEMC.

Mushonga Wemakemikari
Iyo kemikari chimiro cheCMC neHEMC yakafanana, sezvo ese ari maviri anobva ku cellulose. CMC inogadzirwa nekuita cellulose ine chloroacetic acid kugadzira mapoka ecarboxymethyl, nepo HEMC inogadzirwa nekuita seruserune ne ethylene oxide uye methyl chloride kugadzira hydroxyethyl uye methyl mapoka.

Solubility
Imwe yemisiyano mikuru pakati peCMC neHEMC ndeyekunyungudika kwavo mumvura. CMC inonyungudika zvakanyanya mumvura uye inogona kuumba yakajeka, viscous mhinduro kunyangwe pakadzika kudzikira. Kusiyana neizvi, HEMC hainyanyi kunyungudika mumvura kupfuura CMC uye kazhinji inoda kushandiswa kwechinhu chinonyungudutsa, senge ethanol kana isopropyl doro, kunyungudika zvachose.

Viscosity
Mumwe musiyano wakakosha pakati peCMC neHEMC ndeye viscosity yavo. CMC ine viscous yakanyanya uye inogona kugadzira gobvu gel-senge mhinduro kana yanyungudutswa mumvura. Izvi zvinoita kuti CMC ive yakanaka kuti ishandiswe mumashandisirwo panodiwa kukora kana gelling, senge muindasitiri yechikafu yekugadzira sosi nemapfekero. Kusiyana neizvi, HEMC ine viscosity yakaderera pane CMC uye inowanzo shandiswa seyakakora kana rheology modifier mumashandisirwo panodiwa mhinduro isina viscous.

pH Kugadzikana
CMC inowanzogadzikana pamusoro pehupamhi hwepH kukosha kupfuura HEMC. CMC yakagadzikana mune ese aridhi uye alkaline nharaunda, izvo zvinoita kuti ive yakakodzera kushandiswa muindasitiri yezvekudya, uko pH hunhu hunogona kusiyana zvakanyanya. Kusiyana neizvi, HEMC yakanyanya kugadzikana mune zvishoma acidic kune isina kwayakarerekera pH nharaunda uye inogona kuputsa kune yakakwirira pH kukosha.

Tembiricha Kugadzikana
Zvose CMC neHEMC dzakagadzikana pamusoro pemhando dzakasiyana-siyana dzekushisa, asi pane mutsauko mukugadzikana kwavo kwekupisa. CMC yakagadzikana zvakanyanya kupfuura HEMC uye inogona kuchengetedza zvivakwa zvayo patembiricha yepamusoro. Izvi zvinoita kuti CMC ive yakanaka kuti ishandiswe mukushandisa uko kupisa kwakanyanya kunobatanidzwa, senge mukugadzirwa kwezvinhu zvakabikwa. HEMC, kune rumwe rutivi, ine yakaderera thermal kugadzikana pane CMC uye inogona kuputsa pasi pakakwirira tembiricha.

Applications
Ose CMC neHEMC anoshandiswa mumhando dzakasiyana dzekushandisa mumaindasitiri akasiyana. CMC inowanzoshandiswa seyakakora, stabilizer, uye emulsifier muindasitiri yechikafu kune zvigadzirwa zvakaita seaizikirimu, sosi, uye mapfekero. Inoshandiswawo muindasitiri yemishonga sebhainda, disintegrant, uye kumisa mumiririri. HEMC inowanzo shandiswa seyakakora, binder, uye rheology modifier muindasitiri yekuvaka yezvigadzirwa zvakaita sependi, machira, uye zvinonamira. Inoshandiswawo muindasitiri yemishonga sebhainda, disintegrant, uye inosimudzira-kuburitsa mumiririri.