Kunatswa kweHydroxyethyl cellulose

Kunatswa kweHydroxyethyl cellulose(HEC) inosanganisira kugadzirisa iyo mbishi kuvandudza kuchena kwayo, kuwirirana, uye zvivakwa zvekushandisa chaiko. Heino mhedziso yemaitiro ekunatsiridza kweHEC:

1. Raw Material Selection:

Maitiro ekunatsiridza anotanga nekusarudzwa kwemhando yepamusoro cellulose seyakagadzirwa. Cellulose inogona kutorwa kubva kwakasiyana siyana, senge pulp yehuni, machira ekotoni, kana zvimwe zvinomera-zvakavakirwa zvinhu.

2. Kucheneswa:

Iyo mbishi cellulose zvinhu inonatswa kubvisa tsvina senge lignin, hemicellulose, uye zvimwe zvisiri-cellulosic components. Iyi nzira yekuchenesa inowanzo sanganisira kugeza, kuchena, uye mishonga yemakemikari kuwedzera kuchena kweselulosi.

3. Etherification:

Mushure mekucheneswa, iyo cellulose inogadziriswa kemikari kuburikidza ne etherification kuti iunze mapoka ehydroxyethyl pane cellulose musana, zvichikonzera kuumbwa kweHydroxyethyl Cellulose (HEC). Etherification reactions inowanzobatanidza kushandiswa kwealkali metal hydroxides uye ethylene oxide kana ethylene chlorohydrin.

4. Neutralization uye Washing:

Kutevera etherification, musanganiswa wekuita haugadziriswe kubvisa yakawandisa alkali uye kugadzirisa pH. Iyo neutralized chigadzirwa inobva yashambidzwa zvakakwana kuti ibvise makemikari akasara uye ne-zvigadzirwa kubva pakuita.

5. Kusefa uye Kuomesa:

Iyo yakanatswa HEC mhinduro inosefa kuti ibvise chero yakasara yakasimba particles kana tsvina. Mushure mekusefa, mhinduro yeHEC inogona kuiswa, kana zvichidikanwa, uye yobva yaomeswa kuti iwane fomu yekupedzisira yehupfu kana granular yeHEC.

6. Kudzora Hunhu:

Munguva yese yekunatsa, matanho ekudzora emhando anoitwa kuti ave nechokwadi chekuenderana, kuchena, uye kuita kweHEC chigadzirwa. Miedzo yekudzora mhando inogona kusanganisira chiyero che viscosity, kuongorora huremu hwemamorekuru, kutsunga kwehunyoro, uye kumwe kuongorora kwemuviri nemakemikari.

7. Kurongedza uye Kuchengeta:

Kana yanatswa, chigadzirwa cheHEC chinoiswa mumidziyo yakakodzera kana mabhegi ekuchengetedza uye ekufambisa. Kurongedza kwakakodzera kunobatsira kuchengetedza HEC kubva mukusvibiswa, unyoro, uye zvimwe zvinhu zvezvakatipoteredza zvinogona kukanganisa kunaka kwayo.

Applications:

Yakanatswa Hydroxyethyl Cellulose (HEC) inowana akawanda maapplication mumaindasitiri akasiyana siyana, anosanganisira:

• Kuvaka: Inoshandiswa seyakakora, rheology modifier, uye mumiriri wekuchengetedza mvura mune simende-based zvigadzirwa, pendi, machira, uye zvinonamira.
• Kuzvichengeta Pachedu uye Zvizoro: Inoshandiswa seyakakora, stabilizer, uye firimu rekare mune lotions, makirimu, shampoos, uye zvimwe zvigadzirwa zvekuchengeta munhu.
• Pharmaceutical: Inoshandiswa sebhainda, disintegrant, uye inodzorwa-kuburitsa mumiriri mumapiritsi emishonga, capsules, uye nemuromo kumiswa.
• Chikafu: Inoshandiswa seyakakora, emulsifier, uye inodzikamisa muzvigadzirwa zvekudya zvakaita sesosi, madhirezi, uye zvigadzirwa zvemukaka.

Mhedziso:

Kunatsiridzwa kweHydroxyethyl Cellulose (HEC) kunosanganisira matanho akati wandei ekuchenesa nekugadzirisa iyo mbishi cellulose zvinhu, zvichikonzera kuti pave nemhando dzakasiyana-siyana uye yakakwirira-inoshanda polymer ine huwandu hwakawanda hwekushandisa mumaindasitiri akadai sekuvaka, kuchengetwa kwemunhu, mishonga, uye chikafu. Iyo nzira yekunatsa inovimbisa kuenderana, kuchena, uye kunaka kweHEC chigadzirwa, ichigonesa kushandiswa kwayo mumhando dzakasiyana siyana uye zvigadzirwa.