Carboxymethylcellulose (CMC) uye starch ese ari mapolysaccharides, asi ane akasiyana zvimiro, zvivakwa uye mashandisirwo.
Molecular composition:
1. Carboxymethylcellulose (CMC):
Carboxymethylcellulose inotorwa kubva ku cellulose, mutsara wepolymer inoumbwa neglucose mayunitsi akabatanidzwa ne β-1,4-glycosidic bond.Kugadziriswa kwe cellulose kunosanganisira kuunzwa kwemapoka ecarboxymethyl kuburikidza ne etherification, kugadzira carboxymethylcellulose.Iro carboxymethyl boka rinoita CMC kunyungudika mvura uye inopa iyo polymer yakasarudzika zvivakwa.
2. Starch:
Starch icarbohydrates inoumbwa neglucose units yakabatana ne α-1,4-glycosidic bonds.Iyo yakasikwa polymer inowanikwa muzvirimwa iyo inoshandiswa sechinhu chekuchengetedza simba.Starch mamorekuru anowanzo kuumbwa nemhando mbiri dzeglucose polymers: amylose (yakatwasuka cheni) uye amylopectin (matavi cheni zvimiro).
Zvinhu zvemuviri:
1. Carboxymethylcellulose (CMC):
Solubility: CMC inonyungudika mumvura nekuda kwekuvapo kwemapoka ecarboxymethyl.
Viscosity: Inoratidzira yakakwira viscosity mumhinduro, ichiita kuti ive yakakosha mune akasiyana maapplication akadai sekugadzira chikafu nemishonga.
Transparency: CMC mhinduro dzinowanzo jeka.
2. Starch:
Solubility: Native starch hainyunguswi mumvura.Inoda gelatinization (kupisa mumvura) kuitira kuti iparadze.
Viscosity: Starch paste ine viscosity, asi kazhinji yakaderera pane CMC.
Transparency: Starch pastes inowanzoita opaque, uye dhigirii rekupenya rinogona kusiyana zvichienderana nerudzi rwestarch.
kwakabva:
1. Carboxymethylcellulose (CMC):
CMC inowanzo gadzirwa kubva ku cellulose kubva kune zvidyarwa zvakaita sehuni pulp kana donje.
2. Starch:
Zvirimwa zvakaita sechibage, gorosi, mbatatisi nemupunga zvine sitachi.Icho chinhu chinonyanya kukosha muzvokudya zvakawanda.
Maitiro ekugadzira:
1. Carboxymethylcellulose (CMC):
Kugadzirwa kweCMC kunosanganisira etherification reaction ye cellulose ine chloroacetic acid mune alkaline medium.Kuita uku kunoguma nekutsiviwa kwemapoka ehydroxyl mu cellulose nemapoka ecarboxymethyl.
2. Starch:
Kubvisa starch kunosanganisira kutyora masero ezvirimwa uye kupatsanura starch granules.Yakabviswa starch inogona kupinda maitiro akasiyana-siyana, kusanganisira kuchinjwa uye gelatinization, kuti uwane zvinhu zvaunoda.
Chinangwa uye kushandiswa:
1. Carboxymethylcellulose (CMC):
Indasitiri yechikafu: CMC inoshandiswa seyakakora, stabilizer uye emulsifier mukudya kwakasiyana siyana.
Pharmaceuticals: Nekuda kwekusunga kwayo uye kuparadzanisa zvivakwa, inowana kushandiswa mukugadzirwa kwemishonga.
Kuchera Oiri: CMC inoshandiswa mumafuta ekuchera zvinwiwa kudzora rheology.
2. Starch:
Indasitiri yechikafu: Starch ndicho chikamu chikuru chezvikafu zvakawanda uye inoshandiswa seyakakora mumiriri, gelling agent uye stabilizer.
Indasitiri yemachira: Starch inoshandiswa mukuyera machira kupa kuomarara kumachira.
Indasitiri yemapepa: Starch inoshandiswa mukugadzira mapepa kuwedzera simba remapepa uye kugadzirisa zvivakwa zvepasi.
Kunyangwe CMC uye starch ese ari mapolysaccharides, ane misiyano mukuumbwa kwemamorekuru, zvimiro zvemuviri, masosi, maitiro ekugadzira uye mashandisiro.CMC inonyungudika nemvura uye ine viscous zvakanyanya uye inowanzo kufarirwa mumashandisirwo anoda izvi zvivakwa, nepo sitachi iine zvinhu zvakasiyana-siyana polysaccharide inoshandiswa zvakanyanya mumaindasitiri ezvekudya, machira nemapepa.Kunzwisisa mutsauko uyu kwakakosha pakusarudza iyo yakakodzera polymer kune chaiyo maindasitiri uye zvekutengesa maapplication.
Nguva yekutumira: Jan-12-2024