Methyl hydroxethyl le joang cellulose?

Background and Overview

Celloulose Ether o sebelisoa haholo lingoliloeng tse ntle tsa lik'hemik'hale tse entsoeng ka celmer ea tlhaho ka kalafo ea lik'hemik'hale. Kamora ho etsa tlhahiso ea cellulose celtuse e acetate ka Lekholong la bo19 la lilemo, moobili ba pepesitsoeng ba-li-colllsebal babuelli ba linyeoe tsa celulose le tse ncha ba fumanoe ba ntse ba tsoela pele ho tsoelang pele, ba kenyelletsang likarolong tse ngata tsa indasteri. Lihlahisoa tse kang Sodium canthuxemethyl celboulose (HPC), HydroxypropyLe (MHC) le Methyl HydroullpropyL Joalokaha "indasteri ea indasteri ea Monosodium e sebelisoa haholo 'me e se e sebelisoa haholo ho oli ea oli, kaho, bosholu, lijo, lijo le lik'hemik'hale tsa bongaka tsa letsatsi le letsatsi.

Hydroxethyl Methyl Methyl Polddle e se nang bomolimo e se nang lehloa e ka qhibilihang metsing a batang a ho etsa tharollo ea li-viccous tse nang le maqhubu. E na le litšobotsi tsa ho holisa, tse tlama, li hahlaula, ho etsa lifilimi, ho tsamaisa, ho boloka mongobo ebile ho sireletsa mongobo. Ka lebaka la ts'ebetso e sebetsang ea tharollo, e ka sebelisoa e le moemeli ea sireletsang oa koluoa, emmolifier le afereho. Tharollo ea maiketsetso ea hydroxethyyl methylcelulose afylceluse Hobane hydroxethyl methylcelusese e na le lihlopha tse ntle tsa bohloka, bo tsitsitseng bo loketseng ba ho boloka nako e telele.

Hydroxethyl Methylcelll Mocheso oa botlokotse oa methylcellllll le sona le sona se phahame ho feta sa MC.

Sebopeho

Tšobotsi

Litšobotsi tsa sehlooho tsa hydroxethyl methylcell

1. Turnudity Hemc e ka qhibiliha ka metsing a batang. Khatello ea eona e phahameng ka ho fetisisa e khethoa feela ke pono. SELUBUBIL e fapana ka pono. Ho theola viscootion, e leng salloulity.

2. Lithaba tsa Hemc ke Ethene e seng ea litlolo, kahoo ba tsitsipane ka lithapollo tsa tšepe kapa tse ngata tse matlafatsang ba li-electroni tsa motlakase li ka baka ho felisa botona le pula.

3. Ts'ebetso ea pele: Ka lebaka la ketsahalo e sebetsang ea tharollo ea lapeng, e ka sebelisoa e le moemeli ea sireletsang oa koluoa, emmolifier le afereho.

4. Likhamo tsa Moqheka: Ha tharollo ea metsi a HemC e ntse e le opaque, e khutlela ho bona, empa ha e ntse e tsoela pele ho khutla

5. Metabolic Internet le monko o tlase le monko o tlase: Hemc e sebelisoa haholo lijong le meriana hobane e ke ke ea ba metaboselitsoe le monko o tlase le monko o tlase.

6. Khanyetso ea fatše: Hemc e na le ho khathatseha haholo le ho tsitsa ha nako e telele.

7. TLHOKOMELISO EA PH.

Kopo

Hydroxethyl Methylcelll Mehlala ea eona ea kopo e tjena:

1. Matla a hydroxethyl methylcellulose ho ts'ebetso ea Cement. Hydroxethyl Methylcelulolose ke phofo e tšoeu e nang le chefo e ka qhibilihang metsing a batang a ho etsa tharollo ea li-viscous tse nang le tšoaetso. E na le litšobotsi tsa ho holisa, tse tlama, li hahlaula, ho etsa lifilimi, ho tsamaisa, ho boloka mongobo ebile ho sireletsa mongobo. Kaha tharollo ea ho ala e na le likarolo tse nang le mafolofolo, e ka sebelisoa e le moemeli oa tšireletso, emmolifier le ho nyahama. Tharollo ea maiketsetso ea hydroxethyyl methylcelulose afylceluse

2. Patent ea liphallelo tse ngata haholo li lokisitsoe, e leng se entsoeng ka lisebelisoa tse latelang tsa liphallelo likarolong ka 150-200 g ea metsi a bolokiloeng; 60-70 g ea emulsion e hloekileng ea acrylic; 550-650 g ea calcium e boima; 70-90 g ea phofo ea talcum; Behese ea cellulose aquazous 30-40G; Lignoclulolose ea maiketsetso a maiketsetso 10-20g; Thuso e Senyang ea Filimi 4-6G; antiseptic le fungicide 1.5-2.5g; ho nyahama 1.8-2.2g; mohloa o kolobileng 1.8-2.2g; 3.5-4.5g; Ethylene glycol 9-11g; Thabiso ea hydroxethyl methylcelulose e antiang ke ho qhibiliha mydroxethyl methylceluse ka metsing; Tharollo ea lignocellulose ea maiketsetso e entsoe ka 1-3% lignocellulose e entsoe ka ho qhibiliha ka metsing.

Ho Itokisetsa

A preparation method of hydroxyethyl methyl cellulose, the method is that refined cotton is used as raw material, and ethylene oxide is used as an etherification agent to prepare hydroxyethyl methyl cellulose. Likarolo tsa boima ba lisebelisoa tse tala tsa ho lokisa hydroxethyl methylcelulose, likarolo tse 20-28 tsa methyl chlarde, 16-19 likarolo tsa asiti ea acetic acetic; Mehato e Ikhethileng ke:

Mohato oa pele, ka ketane ea Toluelle le Isopropanol motsoako, metsi, mocheso o fihla ho 60-80 ° ho fihlela metsotso e 204-00;

Mohato oa bobeli, Alkalization: Romella k'homphieutha e kaholimo ho la 1-50 verbalization

Mohato oa boraro, e moholo: Kamora hore motho ea fositseng a phethe, o ile a fallisoa ho 0.05-0.07Ma le methyl Chride bakeng sa metsotso e 30-50; Mokhahlelo oa pele oa menyetla: 40-60 ° C, 1.0-2.0 - khatello e laoloa lipakeng tsa 0.15 le 0.3Ma; Mokhahlelo oa bobeli oa phallo: 60 ~ 90 ℃, lihora tse 2,0 tsa 2.5, khatello e laoloa pakeng tsa 0.4 le 0.8La;

Mohato oa bone, ho se nke lehlakore: eketsa asiti e lekantsoeng e mpe pele ho la 102 ° C, 'me ho se be le boima ba ho jelella ho 72, Desfization e phethetsoe; Tanka ea Dessolventiza e tlatsitsoe ka metsi a pompo e tšoaroang ke sesebelisoa se khelosang ho 90 ° C ho isa ho 100 ° C;

Mohato oa bohlano oa ho hlatsoa, ​​Centrifigal Ho Hlajoa: Ntho ee e bohatong ea bone e tsoa ka sekepeng se tlatsitsoeng ka terakeng e chesang esale pele ea ho hlatsoa thepa.

Mohato oa botšelela, o omella ho omella: Ho fanoa ka boitsebiso bo hlatsuoang ka har'a sengole sengole, 'me thepa e omisitsoeng ka 150-170 ° C,' me boitsebiso bo omisitsoeng bo hamisoa le ho romelloa.

Ha ho bapisoa le theknoloji e teng ea cellulose e le leng, ho qaptjoa ha Ethene, ho sebelisa hydroxethyl methyl methyl methyl ka lebaka la lihlopha tsa hydroyl. E na le botsitso bo botle ba pono ea li-viscosty le ho hanyetsa nako ea ho boloka nako e telele. E ka sebelisoa sebakeng sa bo-Ethena e 'ngoe ea cellsoulose.