Methyl HydroxytHyl cellulose yakagadzirirwa?

Kumashure uye kuongorora

Cellulose ether is a worselt shandiswa polymer yakanaka makemikari zvinhu zvakagadzirwa kubva kune zvakasikwa Polymer Cellulose kuburikidza nemakemikari kurapwa kwemakemikari. Mushure mekugadzira mheremalose nitrate uye cellulose acetate muzana ramakore rechi 19, makemikari akagadzira nhevedzano yemaseruva emaCellum Cellulose ether zvigadzirwa senge sodium carboxymeyl cellever (ec), hpyl hydroxaketl cellyl Celleulose anaana anozivikanwa se "maindasitiri monosdium" uye akamboshandiswa zvakanyanya mumafuta ekudzora, kuvaka, huviri, chikafu, mushonga uye makemikari ezuva nezuva.

Hydroxethyl methyl cellalose (MHPC) isinganzwisisike, isina kuchena, isina chepfu chena poda inogona kunyimwa mumvura inotonhora kuti iite chirevo cheViscous. Iyo ine maitiro ekuremerwa, kusunga, kupararira, anoparadzira, firimu kugadzira, kumhanyisa, kuunganidza, kuchengeta unoshanda uye kuchengetedza manyoro uye kuchengetedza colloid. Nekuda kweiyo nzvimbo yekushandira inoshanda yemhinduro mhinduro, inogona kushandiswa seye collodal inodzivirira mumiririri, emulsifier uye inopararira. HydroxytHyl methylcellose mhinduro yemvura ine hydrophilicity yakanaka uye ndeyekunyorera kwemvura kumiririri. Nekuti hydroxythyl methylcellose ine hydroxythulosel mapoka, ine kugona kwakanaka-nyoro, yakanaka viscosity kugadzikana uye kunyorovesa kuramba panguva refu yekuchengetedza.

Hydroxethyl methylcellose (hemc) yakagadzirirwa nekuunza ethylene oxts Iyo tembiricha yemhepo yemethylcellose yakakwira zvakare kupfuura iyo yeiyo MC.

Chimiro

Chimiro

Hunhu hukuru hwe hydroxythyl methylcellose (hemc) ndeiyi:

1. Solubility: soluble mumvura uye mamwe organic sol sol. Hemc inogona kunyungudutswa mumvura inotonhora. Yake yepamusoro yepamusoro inotsanangurwa chete neViscosity. Solubility inosiyana neViscosity. Iyo yakadzika viscosity, iyo yakakura solubility.

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3. Sosi yezviitiko: Nekuda kwekushanda kwekushanda kwemhinduro yemhinduro, inogona kushandiswa seye collodal yekudzivirira mumiririri, emulsifier uye anopararira.

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5. Kunhuhwirira kwakadzika uye kunhuhwirira kwakanyanyisa.

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7. PH Simba

Application

HydroxytHyl methylcellose inogona kushandiswa seye collodal yekudzivirira mumiriri, emulsifier uye inopararira nekuda kwebasa rayo rekushanda mumvura. Mienzaniso yayo yekushandisa iri seinotevera:

1. Mhedzisiro yehydroxytlyl methylcellose pane simende kuita. HydroxytHyl methylcellose is a is is is is is is is is is is is is is is is-jena chena poda inogona kunyimwa mumvura inotonhora kuti iite fungidziro yeVickuus Viscous. Iyo ine maitiro ekuremerwa, kusunga, kupararira, anoparadzira, firimu kugadzira, kumhanyisa, kuunganidza, kuchengeta unoshanda uye kuchengetedza manyoro uye kuchengetedza colloid. Sezvo mhinduro yemvura ine nzvimbo inoshandira inoshanda basa, inogona kushandiswa seye collodal inodzivirira mumiririri, emulsifier uye inopararira. HydroxytHyl methylcellose mhinduro yemvura ine hydrophilicity yakanaka uye ndeyekunyorera kwemvura kumiririri.

2. Pendi inochinjika yekuyamura yakagadzirirwa, iyo yakagadzirwa nezvinhu zvinotevera zvinotevera zvigadzirwa zviri muhuremu: 150-200 g ye fanized mvura; 60-70 g yeakachena emuroldion; 550-650 g ye inorema calcium; 70-90 g ye talcum poda; Base cellulose mhinduro mhinduro 30-40g; Lignocellulose mhinduro yemvura 10-20g; Firimu-Inogadzira Rubatsiro 4-6g; Antiseptic uye Fungicide 1.5-2G; kuparadzira 1.8-2G; Interting mumiririri 1.8-2G; 3.5-4.5G; Etylene glycol 9-11g; Iyo hydroxyetyl ​​methylcellose mhinduro yemvura inogadzirwa nekunyungudika 2-4% hydroxytlsl methylose mumvura; Iyo Lignocellulose mhinduro yemvura inogadzirwa ne1-3% Lignocellose inogadzirwa nekunyungudika mumvura.

Kugadzirira

Nzira yekugadzirira yeHydroxytHyl methyl Cellelose, iyo nzira iyo yakanatswa yekotoni inoshandiswa seyakavezwa zvinyorwa, uye esylylene oxide inoshandiswa seyenzuro yekugadzirira kugadzirira hydroxyll metdroxose. Iyo huremu zvikamu zvezvinyorwa zvekugadzira hydroxylyl methylcellose zviri seyekutanga: Nhengo dzeSolvent, mhete dzemvura, yeClacial acetic acid; Matanho chaiwo ndeiyi:

Nhanho yekutanga, mune reaction kettle, wedzera toluene uye isopropanol musanganiswa, mvura uye sodium hydroxide, kupisa kusvika pamakumi matanhatu emaminitsi 20-30 maminitsi makumi maviri;

Nhanho yechipiri, kushomeka: Kutonhorera zviri pamusoro apa kusvika 30-50 ° CTTON, KUSVIRA PASI PASI PASI 50 ° C;

Nhanho yechitatu. Nhanho yekutanga yekuziya: 40-60 ° C, 1.0-2. maawa0 maawa, kudzvinyirira kunodzorwa pakati pe 0.15 uye 0.3mpa; Chikamu chechipiri chekutsausa: 60 ~ ℃, 2.0 ~ maawa 2,5, kudzvinyirira kunodzorwa pakati pe 0.4 uye 0.8mpa;

Nhanho yechina, kusarerekera: Wedzera iyo yakayera glacial acetic acetic Actics kuenda kuSecciptation, tembiricha inokwira Iyo Desolventization Tank inozadzwa neTap yemvura yakarapwa neyakagadzirwazve osmosis kifaa pa 90 ° C kusvika 100 ° C;

Nhanho yechishanu, iyo Centrifugal Washing: Zvinyorwa zviri muChinyorwa chechina chakaiswa mukati mechikamu chakaringana kupfuura, uye zvinhu zvakaparadzaniswa zvinoendeswa kune tangi yekushambidza yakazadzwa nemvura inopisa pamberi pekushambidza zvinhu.

Nhanho yechitanhatu, Centrifugal Kuomesa: Chinyorwa chakashambwa chinoburitswa muChreji yakatwasuka.

Kuenzaniswa neiyo iripo cellulose ether yekugadzira tekinoroji, iyo iripo iripo inoshandisa Ethylyone oxide kuti gadzira hydroxaketl metdroxose, iyo ine yakanaka nyoro yekudzivirira nekuda kweiyo hydroxytem mapoka. Iyo ine yakanaka viscosity kugadzikana uye kunyorovesa kuramba panguva yekuchengetedza kwenguva refu. Inogona kushandiswa pachinzvimbo chevamwe cellulose ana