I-Carboxymethyl Cellulose (CMC) itholakala ngemuva kwe-calloxymetútation of cellulose. Isixazululo sayo samanzi sinemisebenzi yokuqina, ukwakha amafilimu, ukubopha izibopho, ukuvikelwa kwamanzi, ukuvikela ama-colloid, ukuqinisekiswa kanye nokumiswa, kusetshenziswa izimboni ze-njll., Kungenye ebaluleke kakhulu I-Cellulose Telroser. Inwanalia Cellulose iyi-polysaccharide esatshalaliswa kabanzi futhi eningi kakhulu ye-polysaccharide ngokwemvelo, futhi imithombo yawo icebile kakhulu. Ubuchwepheshe bokuguqulwa kwamanje kweselula ikakhulukazi bugxile ekuthetheleni nasekuhlolweni. I-Carboxmetyltation uhlobo lobuchwepheshe bokuthenjwa.
Izakhiwo Ezibonakalayo
I-Sodium Carboxymethyl Cellulose (CMC) iyi-anionic cellulose ether, enomcupho omhlophe noma ophuzi wefayibha wefayibha noma i-white powch powder noma i-adorless powder, engenamkhawulo, engenakunambitha, ayinobuthi; ukuncibilika kalula emanzini abandayo noma emanzini ashisayo, kwakha isixazululo esithile esicacile. Isixazululo asithathi hlangothi noma kancane i-alkalil, i-insolul e-ethanol, ether, i-isopropanol, i-acetone namanye ama-sol sol solvent, ancibilika ngo-60% aqukethe isixazululo se-ethanol noma i-acetone. Kuyi-hygroscopic, ezinzile ekukhanyeni nokushisa, i-visa iyehla ngokwanda kokushisa, ikhambi lizinzile kwaPh 2-10, i-PH liphansi kuno-2, futhi i-visa liyancipha lapho i-PH iphakeme kune-10 . Amazinga okushisa angu-227 ℃, izinga lokushisa le-carbonization lingama-252 ℃, futhi ukungezwani okungaphezulu kwesisombululo esingu-2% esinamanzi kungu-71M / N.
Izakhiwo Zamakhemikhali
Ilungiselelwe kusuka kuma-cellulose derivativevents of carboxymethyls substiturents, elapha i-cellulose nge-sodium hydroxide ukwakha i-alkali cellulose, bese uphendula nge-monochlororocetic acid. Uphiko lukashukela owakha ama-cellulose anamaqembu ama-3 hydroxyl angathathelwa indawo, ngakho-ke imikhiqizo enamazinga ahlukene wokufaka esikhundleni. Ngokwesilinganiso, i-1 mmol ye-carboxymethyl yethulwe nge-1 g yesisindo esomile, esingenakufakwa emanzini bese i-diliful acid, kepha ingavuvukala futhi isetshenziselwe i-ion Exchange Chromatography. I-Carboxymethyl Pka imayelana ne-4 emanzini amsulwa futhi cishe ngo-3.5 ku-0.5mol / l nacl. Kuyinto ebuthakathaka ye-acial exchanger futhi imvamisa esetshenziselwa ukwahlukana kwamaprotheni angathathi hlangothi nakuyisisekelo kwaPh> 4. Bangaphezu kuka-40% amaqembu e-hydroxyl athathelwa indawo amaqembu e-carboxymethyl, angachithwa emanzini ukwakha isixazululo esizinzile se-colloidal solution.
Inhloso Eyinhloko
I-Carboxymethyl Cellulose (CMC) iyimpuphu ye-White engenabuthi futhi enobuthi ngokusebenza okuzinzile futhi ingena kalula emanzini. Isixazululo sayo esinamanzi athathiwe noma i-alkaline esobala ebonakalayo, incibilika kwamanye ama-glues ancibilikayo wamanzi nama-resins, kanye nokungabonakali. ku-organic solvents njenge-ethanol. I-CMC ingasetshenziswa njenge-adhesive, i-perhener, umenzi osomisa umenzeli, emulsifier, dispersant, stabilizer, i-agent, njll.
I-Sodium Carboxymethyl Cellulose (CMC) ingumkhiqizo ophuma kakhulu, ukusetshenziswa okusetshenziswa kakhulu kanye nokusetshenziswa okulula kakhulu phakathi kwezitha ze-cellulose, ezaziwa ngokuthi "ama-monosodium we-monosodium ama-glutamate".
1. Isetshenziselwa ukumba kawoyela kanye nokushayela kwegesi yemvelo, ukumba kahle namanye amaphrojekthi
① Udaka oluqukethe i-CMC lungenza kahle udonga lwe-Wall lukheke ikhekhe elincanyana neliqinile elinomdlandla ophansi, okunciphisa ukulahleka kwamanzi.
Ngemuva kokungeza i-CMC odakeni, ukumba i-rig kungathola amandla aphansi okuqala, ukuze odaka akwazi ukukhulula igesi esongelwe kulo, futhi ngasikhathi sinye, umdonyisi ulahlekelwa ngokushesha emgodini odaka.
Mud ③Drilling Mud, Njengamanye Ukuhlukaniswa Kwamanye Ukumiswa, inesikhathi esithile sokuba khona, futhi ukungezwa kwe-CMC kungenza kuzinze futhi kwandise isikhathi sokuba khona.
④ Udaka oluqukethe i-CMC akuvamile ukuthintwa isikhunta, ngakho-ke akudingekile ukugcina inani eliphakeme le-PH futhi lisebenzise izisusa.
⑤ Uqukatha i-CMC njengodaka lodaka lokugeza uketshezi, olungamelana nokungcoliswa kosawoti ohlukahlukene oncibilikayo.
⑥ Udaka oluqukethe i-CMC lunokuqina okuhle futhi lunganciphisa ukulahleka kwamanzi noma ngabe izinga lokushisa lingaphezulu kuka-150 ℃.
I-CMC ene-viscosity ephezulu futhi i-degree ephezulu yokufaka esikhundleni ilungele udaka olunobunzima obuphansi, kanye ne-cmc enokubonakala okuphansi kanye nezinga eliphakeme lokufaka esikhundleni semali lilungele udaka ngobuningi obukhulu. Ukukhethwa kwe-CMC kufanele kunqunywe ngokuya ngezimo ezahlukahlukene njengohlobo lodaka, isifunda kanye nokujula okuhle.
2. Isetshenziswa emkhakheni wezindwangu, ukuphrinta nokudaya embonini. Imboni yendwangu isebenzisa i-CMC njenge-ejenti ye-sizing yokukhanya kwe-yorn okukhanyayo kokotini, uvolo, indwangu yamakhemikhali, ehlanganisiwe nezinye izinto eziqinile;
I-3. Isetshenziswa embonini yephepha CMC ingasetshenziswa njengephepha le-ejenti yephepha elibushelelezi kanye ne-ejenti yezandla embonini yamaphepha. Ukungeza i-0.1% kuya ku-0.3% CMC kwi-pulp kungathuthukisa amandla ashukumisayo ephepha ngo-40% kuya ku-50%, futhi kwandise ukugqabhuka ngamahlandla amane kuya kwayisi-5.
I-4. I-CMC ingasetshenziswa njenge-dirt adsorbent uma ingezwe ku-sonthetic detegergents; Amakhemikhali ansuku zonke anjengemboni amazinyo embonini yamazinyo CMC glycerin aqualid isixazululo njengesisekelo sezinyo; Umkhakha wezemithi usetshenziswa njenge-nyouner ne-emulsifier; Isixazululo se-CMC esinamanzi sikhulu futhi sisetshenziselwa ukucubungula amaminerali amaminerali, njll.
I-5. Embonini ye-ceramic, ingasetshenziswa njenge-adhesive, i-spitizer, umenzeli osomisile we-glaze, umenzeli wokulungisa umbala, njll.
6. Isetshenziswa ekwakheni ukuthuthukisa ukugcinwa kwamanzi namandla
7. Isetshenziswa embonini yokudla. Imboni yokudla isebenzisa i-CMC ene-degree ephezulu kakhulu njenge-smilener ye-ayisikhilimu, ukudla okusemathinini, ama-noodle asheshayo, ne-foam stabilizer yebhilidi, ama-bec.
8. Imboni yezemithi ikhetha i-CMC nge-viscosity efanelekile njenge-timeturance yethebhulethi, ukuqhelelana futhi okumisiwe kokukhunjulwa.
Isikhathi sePosi: Nov-03-2022