Chii chinonzi Sodium Carboxymethyl cellulose?

Carboxymethylcellulose (CMC) inosiyana-siyana uye inoshandiswa zvakanyanya kemikari musanganiswa inowana mashandisirwo mumaindasitiri akasiyana nekuda kweiyo yakasarudzika zvimiro. Iyi polymer inotorwa kubva ku cellulose, yakasikwa polymer inowanikwa mumasero madziro emiti. Carboxymethylcellulose inogadzirwa nekemikari shanduko ye cellulose kuburikidza nekuunzwa kwecarboxymethyl mapoka, ayo anosimudzira ayo-kunyungudika kwemvura uye kukora masimba.

Molecular Structure uye Synthesis

Carboxymethylcellulose ine cellulose maketani ane carboxymethyl mapoka (-CH2-COOH) akabatanidzwa kune mamwe emapoka ehydroxyl pazvikamu zveglucose. Iyo synthesis yeCMC inosanganisira kuita kwe cellulose ne chloroacetic acid, zvichikonzera kutsiviwa kwemaatomu ehydrogen pane cellulose cheni nemapoka ecarboxymethyl. Iyo dhigirii yekutsiva (DS), iyo inoratidza avhareji nhamba yemapoka ecarboxymethyl paglucose unit, inokanganisa zvimiro zveCMC.

Zvenyama uye Chemical Properties

1. Solubility: Chimwe chezvinhu zvinozivikanwa zveCMC kunyungudika kwayo kwemvura, zvichiita kuti ive yakakosha yekukora mumiriri mumhinduro dzine mvura. Iyo dhigirii yekutsiva inokanganisa kunyungudika, nepamusoro DS inotungamira mukunyungudika kwemvura.
2. Viscosity: Carboxymethylcellulose inokosheswa pakukwanisa kwayo kuwedzera viscosity yezvinwiwa. Izvi zvinoita kuti ive chinhu chakajairika muzvigadzirwa zvakasiyana, senge chikafu, mishonga, uye zvigadzirwa zvekuchengeta munhu.
3. Firimu-Kugadzira Zvivakwa: CMC inogona kuumba mafirimu kana yakaoma, ichibatsira mukushandiswa kwayo mumaindasitiri uko kunoda kutetepa, kuchinjika coating.
4. Ion Exchange: CMC ine ion yekutsinhana zvivakwa, ichiibvumira kudyidzana nemaion mumhinduro. Ichi chivakwa chinowanzo shandiswa mumaindasitiri senge kuchera mafuta uye kuchenesa mvura yetsvina.
5. Kugadzikana: CMC yakagadzikana pasi pehupamhi hwepH mamiriro, ichiwedzera kune zvakasiyana-siyana mumashandisirwo akasiyana.

Applications

1. Indasitiri Yezvekudya:

• Thickening Agent: CMC inoshandiswa seyakakora mumiriri mune dzakasiyana siyana zvigadzirwa zvekudya, zvinosanganisira sosi, madhirezi, uye zvigadzirwa zvemukaka.
• Stabilizer: Inogadzirisa emulsions mune zvigadzirwa zvekudya, kudzivirira kuparadzana.
• Texture Modifier: CMC inosimudzira magadzirirwo uye muromo wezvimwe zvinhu zvekudya.

2. Pharmaceuticals:

• Binder: CMC inoshandiswa sebhainda mumapiritsi emishonga, ichibatsira kubata zvinosanganiswa pamwechete.
• Suspension Agent: Inoshandiswa mumishonga yemvura kudzivirira kugadzika kwezvikamu.

3. Personal Care Products:

• Viscosity Modifier: CMC inowedzerwa kune zvizorwa, shampoos, uye lotions kugadzirisa viscosity yavo uye kugadzirisa maitiro avo.
• Stabilizer: Inodzikamisa emulsions mune zvizorwa magadzirirwo.

4. Indasitiri yemapepa:

• Surface Sizing Agent: CMC inoshandiswa muindasitiri yemapepa kuvandudza zvinhu zvepapepa, sekutsvedzerera uye kudhinda.

5. Indasitiri yeMicheka:

• Sizing Agent: CMC inoshandiswa kune fiber kuti ivandudze zvivakwa zvavo zvekuruka uye kuwedzera kusimba kwejira rinobuda.

6. Kuchera Oiri:

• Fluid Loss Control Agent: CMC inoshandiswa mukuchera zvinwiwa kudzora kurasikirwa kwemvura, kuderedza njodzi yekusagadzikana kwetsime.

7. Kugadziriswa kweWastewater:

• Flocculant: CMC inoshanda senge flocculant kuunganidza zvakanaka zvimedu, zvichiita kuti kubviswa kwavo mumarara ekurapa kwemvura.

Mafungiro Ezvakatipoteredza

Carboxymethylcellulose inowanzoonekwa yakachengeteka kuti ishandiswe mune akasiyana maapplication. Sekubuda kwe cellulose, inokwanisa kuomeswa, uye kukanganisa kwayo kwezvakatipoteredza kwakadzikira. Nekudaro, zvakakosha kuti titarise iyo yakazara nharaunda tsoka yekugadzirwa kwayo uye kushandiswa kwayo.

Mhedziso

Carboxymethylcellulose imhando dzakasiyana-siyana uye yakakosha polymer ine yakapararira maapplication mumaindasitiri akasiyana. Musanganiswa wayo wakasarudzika wezvivakwa, zvinosanganisira kunyungudika kwemvura, kugona kukora, uye kugadzikana, kunoita kuti ive chinhu chakakosha muzvigadzirwa zvakasiyana. Sezvo maindasitiri achiramba achitsvaga mhinduro dzinogara uye dzinoshanda, basa recarboxymethylcellulose rinogona kushanduka, uye tsvakiridzo inoenderera mberi inogona kuburitsa manyorerwo matsva eiyi inoshamisa polymer.