Muindasitiri yemakemikari, CMC (Carboxymethyl Cellulose Sodium) inonziwo CMC. CMC yakakosha cellulose derivative inowanikwa nekemikari kushandura yakasikwa cellulose. Kunyanya, iyo molecular chimiro cheCMC ndechekuti mapoka ecarboxymethyl anounzwa mu cellulose molecule, iyo inoipa iyo yakawanda mitsva yemuviri uye kemikari zvimiro, saka inoshandiswa zvakanyanya mumakemikari, chikafu, mushonga uye mamwe maindasitiri.
1. Chimiro chemakemikari uye zvinhu zveCMC
CMC is a cellulose ether compound inowanikwa nekuita kwe cellulose uye chloroacetic acid, uye yayo basic structural unit ndeye β-1,4-glucose ring. Kusiyana nemasikirwo cellulose, mapoka ecarboxymethyl anounzwa mune molecule chimiro cheCMC, iyo inoita kuti igadzire viscous colloidal mhinduro mumvura. Huremu hwemamorekuru eCMC hunogona kugadziridzwa zvichienderana nedanho rekuita, uye maCMC ehuremu hwakasiyana hwemamorekuru anoratidza kunyungudika kwakasiyana uye viscosity mukushandisa. Kunyungudika uye viscosity yeCMC inobatwa nedhigirii rekutsiva (kureva kuti, nhamba yezvinotsiva pane cellulose molecule). CMC ine yakakwirira dhigirii yekutsiva kazhinji ine yakakwira solubility yemvura uye viscosity. CMC ine kugadzikana kwakanyanya kwemakemikari, ine kumwe kushivirira kune acid uye alkali nharaunda, haina chepfu uye haina kukuvadza, uye inosangana nekuchengetedzwa kwezvakatipoteredza uye hutano zviyero.
2. CMC kugadzira nzira
Maitiro ekugadzira eCMC anosanganisira matanho matatu: alkalization, etherification uye post-kurapwa.
Alkalization: Cellulose (kazhinji kubva kumidziyo yechisikigo senge donje nehuni pulp) inobatwa nesodium hydroxide kuti iwedzere kuita kwehydroxyl ye cellulose, iyo yakanakira maitiro anotevera.
Etherification: Sodium chloroacetate inowedzerwa kune alkalized cellulose, uye mapoka ecarboxymethyl anounzwa kuburikidza nekuita kushandura cellulose kuita carboxymethyl cellulose.
Post-kurapwa: Iyo CMC inogadzirwa nemaitiro haina kurerekera, inosefa, yakaomeswa uye yakapwanyika kuti pakupedzisira iwane zvigadzirwa zvezvakasiyana zvakatemwa. Iyo dhigirii yekutsiva uye huremu hwemamorekuru echigadzirwa inogona kugadziridzwa nekudzora maitiro ekuita, yakaomeswa zvinhu uye nguva yekuita, kuitira kuti uwane zvigadzirwa zveCMC zvine akasiyana viscosities uye solubility zvivakwa.
3. Kuita maitiro eCMC
Seyakanyanya kushanda nesimba gobvu, stabilizer, firimu rekare uye rinonamira, CMC ine anotevera maitiro ekuita:
Yakanaka kunyungudika kwemvura: CMC inonyungudika nyore mumvura uye inogona kuumba yakajeka colloidal mhinduro, uye nzira yekunyungudutsa yakapfava uye iri nyore kushanda.
Yakasimba yekukora mhedzisiro: CMC inogona zvakanyanya kuwedzera viscosity yemhinduro pane yakaderera, izvo zvinoita kuti ive nepamusoro kukosha kwekushandisa muzviitiko zvakawanda panodiwa kukora mhedzisiro.
Kugadzikana: CMC ine kushivirira kwakanyanya kune asidhi, alkali, mwenje, kupisa, nezvimwe, uye ine mhinduro yakanaka kugadzikana.
Yakachengeteka uye isina-chepfu: CMC inoshandiswa zvakanyanya mukudya, mushonga uye mamwe maindasitiri. Yakachengeteka uye isina-chepfu uye yakakodzera kune yakananga kana isina kunanga chikafu chekubata zvinhu.
4. Nzvimbo dzekushandisa dzeCMC
Indasitiri yechikafu: CMC inoshandiswa zvakanyanya seyakakora, emulsifier, stabilizer, nezvimwewo muindasitiri yezvekudya. Inogona kushandiswa mu ice cream, jamu, condiments, zvinwiwa, zvigadzirwa zvemukaka, nezvimwewo kuti zvinyatso kuvandudza kugadzirwa, kuravira uye kugadzikana kwechikafu. Semuenzaniso, CMC seyakakora muaizikirimu inogona kudzivirira kuumbwa kweaizi makristasi uye kuita kuti kuravira kweaizi cream kuve nyore.
Indasitiri yemishonga: Mumunda wemishonga, CMC inogona kushandiswa sechinamira pamapiritsi, matrix yemafuta ekuzora, uye thickener yemamwe mishonga yemvura. CMC zvakare ine zvimwe zvekunamira uye firimu-kugadzira zvimiro, izvo zvinogona kuvandudza inodzorwa kuburitsa mhedzisiro yemishonga uye kugadzirisa kugadzikana uye kunyura mwero wezvinodhaka.
Indasitiri yemakemikari yemazuva ese: Muzvizoro uye zvigadzirwa zvekuchengeta munhu, CMC inoshandiswa zvakanyanya mumafuta ekuzora, makirimu, shampoos uye zvimwe zvigadzirwa seyakakora uye inodzikamisa. CMC yakanaka yekunyungudika kwemvura uye firimu-inogadzira zvimiro zvinogonesa kudzikamisa chimiro chezvizoro uye kugadzirisa kupfava kwechigadzirwa.
Indasitiri yePetroleum: CMC inobata basa rekuita thickener uye filtration agent mukuchera mvura, fracturing fluid uye simende slurry, zvinobudirira kuderedza njodzi yekurasikirwa kwemvura uye kuvhara panguva yekuchera, nekuvandudza kuchera nekuchengetedza.
Indasitiri yeMachira uye yekugadzira mapepa: CMC inogona kushandiswa seyarn saizi mumiriri, machira ekupedzisa mumiriri uye pepa rekuwedzera muminda yemachira nekugadzira mapepa, iyo inogona kuvandudza simba reshinda uye kuvandudza kudzivirira kwemvura uye kusimba kwepepa.
5. Kudiwa kwemusika uye tarisiro yekusimudzira yeCMC
Nekukurumidza kukura kwehupfumi hwenyika uye kufambira mberi kwetekinoroji, kudiwa kwemusika kweCMC kuri kukura. Kunyanya mumaindasitiri ezvekudya nemishonga, sezvo vatengi vachinyanya kutarisisa kune hutano nekuchengetedza, yakasikwa uye isingakuvadzi thickener CMC zvishoma nezvishoma yakatsiva mamwe ekugadzira makemikari. Mune ramangwana, kudiwa kwemusika weCMC kunotarisirwa kuramba kuchikura, kunyanya mumatarisiro ekushandiswa kwezvikafu zvinokora, zvinwiwa zvekuchera, zvinodhaka zvinodzorwa zvinoburitsa zvinotakura, nezvimwe.
Sezvo iyo yakasvibirira sosi yeCMC inonyanya kuve yakasikwa cellulose, maitiro ekugadzira ane hushamwari kwezvakatipoteredza. Kuti ienderane nebudiriro yeindasitiri yemakemikari egirinhi, maitiro ekugadzira eCMC ari kuramba achivandudza, sekuderedza kuburitswa kwetsvina mukugadzira, kuvandudza mashandisirwo ezviwanikwa, nezvimwewo, uye kuedza kuita kuti kugadzirwa kweCMC kuzadzise chinangwa. yebudiriro inoenderera mberi.
Seyakakosha cellulose derivative, sodium carboxymethyl cellulose (CMC) yakashandiswa zvakanyanya mumaindasitiri mazhinji akadai sekemikari, chikafu, mushonga, makemikari ezuva nezuva, peturu, machira uye kugadzira mapepa nekuda kwekusiyana kwayo kunyungudika kwemvura, kukora uye kugadzikana kwakanaka. Nekufambira mberi kwetekinoroji uye nekuwedzera kwekudiwa kwemusika, maitiro ekugadzira uye minda yekushandisa yeCMC iri kuramba ichikura, uye ine yakakosha budiriro inogona kuitika muminda yegirinhi kemikari indasitiri uye yakakwirira-kuita mashandisirwo mune ramangwana.
Nguva yekutumira: Nov-01-2024