Carboxymethyl cellulose (CMC) ipolymer inonyungudika mumvura inobva mu cellulose, inova ndiyo organic polymer yakawanda kwazvo pasi pano. CMC inogadzirwa nekushandiswa kwemakemikari e cellulose, kazhinji kubva mumapuranga ehuni kana donje. Inoshandiswa zvakanyanya mumabasa akasiyana-siyana nekuda kwehunhu hwayo hwakasiyana, kusanganisira kugona kwayo kugadzira mhinduro dzakasimba uye majeli, kugona kwayo kusunga mvura, uye kugona kwayo kuora.
Maumbirwo eKemikari uye Kugadzirwa
Maumbirwo emakemikari eCMC ane ma cellulose backbones ane ma carboxymethyl groups (-CH2-COOH) akabatana nemamwe ma hydroxyl groups (-OH) ari pama glucose monomers. Maitiro aya ekutsiva anosanganisira kurapa cellulose ne chloroacetic acid mune alkaline medium, zvichikonzera kuumbwa kwe sodium carboxymethyl cellulose. Dhigirii rekutsiva (DS) rinoreva huwandu hwema hydroxyl groups pa glucose unit akatsiviwa nema carboxymethyl groups, ne DS ye 0.4 kusvika 1.4 iriyo yakajairika mumashandisirwo mazhinji.
Maitiro ekugadzira CMC anosanganisira matanho akati wandei:
Alkalization: Cellulose inorapwa nechigadziko chakasimba, chinowanzova sodium hydroxide, kuti igadzire alkali cellulose.
Kugadziriswa kwemvura: Alkali cellulose inobva yasanganiswa nechloroacetic acid, zvichiita kuti mapoka ehydroxyl atsiviwe nemapoka ecarboxymethyl.
Kucheneswa: CMC isina kucheneswa inogezwa uye inocheneswa kubvisa zvimwe zvinhu uye ma reagents akawandisa.
Kuomesa uye Kugaya: CMC yakacheneswa inoomeswa uye inogayiwa kuti iwane saizi yezvidimbu zvinodiwa.
Zvivakwa
CMC inozivikanwa nehunyanzvi hwayo hunoshamisa, izvo zvinoita kuti ishande mumabasa akasiyana-siyana:
Kunyungudika Kwemvura: CMC inonyungudika nyore nyore mumvura, zvichiita mhinduro dzakajeka, dzakasimba.
Kuchinja kweViscosity: Kuchinja kweCMC solutions kunogona kugadziriswa nekuchinja huwandu hwezvinhu uye huremu hwemamorekuru, zvichiita kuti ive inobatsira pakukora nekudzikamisa zvinhu.
Kugadzirwa kweFirimu: Inogona kugadzira mafirimu akasimba, anochinjika kana yaoma kubva mumushonga.
Hunhu Hwekunamira: CMC ine hunhu hwakanaka hwekunamira, hunobatsira mukushandiswa senge zvinonamira uye zvekuputira.
Kuora Kwezvinhu: Sezvo CMC ichibva mu cellulose yechisikigo, inogona kuora, zvichiita kuti ive isina njodzi kune zvakatipoteredza.
Indasitiri yezvekudya
CMC inoshandiswa zvakanyanya sechikafu chinowedzera (E466) nekuda kwekugona kwayo kugadzirisa viscosity uye kudzikamisa emulsions muzvigadzirwa zvakasiyana-siyana zvekudya. Inoshanda sechinosimbisa, chinosimbisa, uye chinosimbisa muzvigadzirwa zvakaita se ice cream, zvigadzirwa zvemukaka, zvinhu zvebhekari, uye masaradhi. Semuenzaniso, mu ice cream, CMC inobatsira kudzivirira kuumbwa kwemakristaro echando, zvichikonzera kuumbwa kwakapfava.
Mishonga Nezvizoro
Muindasitiri yemishonga, CMC inoshandiswa semushonga wekubatanidza mumatafura, musanganiswa wemafuta, uye musanganiswa wezvinhu zvinosimbisa ganda muzvimisikidzo nemidziyo yemusanganiswa. Inoshandawo semushonga wekusimbisa ganda mumafuta anonhuhwirira, mafuta ekuzora, uye majeli muindasitiri yezvizoro. Haisi chepfu uye haitsamwisi zvinoita kuti ikwanise kushandiswa muzvigadzirwa izvi.
Bepa neMachira
CMC inoshandiswa muindasitiri yemapepa semushonga wekuwedzera saizi yepepa kuti riwedzere kusimba uye kugona kudhindwa. Mumachira, inoshandiswa semushonga wekukora mukugadzira dhayi uye sechikamu chezvishandiso zvekudhinda machira, zvichiwedzera kufanana uye kunaka kwemaprints.
Madhishi ekuchenesa uye maAgent ekuchenesa
Muzvishandiso zvekushambidza, CMC inoshanda semushonga unomisa ivhu, ichidzivirira tsvina kuti isadzokorore kuiswa pamachira panguva yekusuka. Inovandudzawo mashandiro ezvishandiso zvekushambidza mvura nekuwedzera kunaka uye kugadzikana kwazvo.
Kuchera Oiri uye Kuchera Migodhi
CMC inoshandiswa mumafuta ekuchera mvura kudzora kusviba uye senzira yekugadzirisa rheology kuchengetedza kugadzikana kwematope ekuchera, kudzivirira kuputsika kwemaborehole uye kubatsira kubviswa kwezvidimbu. Mukuchera, inoshandiswa senzira yekuyangarara uye senzira yekuyangarara.
Kuvaka uye Zviumbwa zveMadomasi
Muindasitiri yekuvaka, CMC inoshandiswa mukugadzira simende nedhaka kuti ivandudze kuchengetedza mvura uye kushanda kwayo. Muzvigadzirwa zvesimbi, inoshanda sechinobatanidza uye chinobatanidza purasitiki muzvigadzirwa zvesimbi, ichivandudza hunhu hwavo hwekuumba nekuomesa.
Kufunga Nezvezvakatipoteredza uye Kuchengetedzeka
CMC inowanzoonekwa seyakachengeteka (GRAS) nemasangano ekutonga akadai seFDA. Haina chepfu, haikanganisi nharaunda, uye inogona kuora, zvichiita kuti ive isina njodzi kune nharaunda. Zvisinei, maitiro ekugadzira anosanganisira makemikari anofanira kubatwa nekungwarira kudzivirira kusvibiswa kwenharaunda. Kuraswa nemazvo uye kurapwa kwemarara kwakakosha kuderedza kukanganisa kwenharaunda.
Zvitsva uye Nzira dzeRemangwana
Kufambira mberi kuri kuitwa munguva pfupi yapfuura muCMC kunosanganisira kugadzirwa kweCMC yakagadziriswa ine hunhu hwakawedzerwa hwekushandisa. Semuenzaniso, CMC ine huremu hwemamorekuru hwakagadziriswa uye mwero wekutsiva inogona kupa mashandiro ari nani muzvirongwa zvekupa mishonga kana sezvinhu zvekurongedza zvakagadzirwa nebio. Pamusoro pezvo, tsvakiridzo iri kuenderera mberi iri kuongorora kushandiswa kweCMC munzvimbo itsva dzakadai sekugadzira tissue uye bioprinting, uko kugona kwayo kugadzira gel kunogona kubatsira zvikuru.
Carboxymethyl cellulose chinhu chinoshandiswa zvakasiyana-siyana uye chinokosha chine mashandisirwo akasiyana-siyana mumaindasitiri akasiyana-siyana. Hunhu hwayo hwakasiyana, kusanganisira kunyungudika kwemvura, kuchinja kwe viscosity, uye kuora kwehupenyu, zvinoita kuti ive chinhu chakakosha muzvigadzirwa zvakawanda. Nekufambira mberi kuri kuramba kuchiitwa mukugadzirwa kwayo nekugadzirisa, CMC yakagadzirira kutamba basa rakakosha muminda yechinyakare neyechiri kubuda, ichibatsira mukufambira mberi kwetekinoroji uye kuedza kuchengetedza zvakatipoteredza.
Nguva yekutumira: Chikumi-06-2024