Carboxymethylcellulose (CMC) uye starch zvese zviri zviviri polysaccharides, asi zvine maumbirwo akasiyana, hunhu uye mashandisirwo akasiyana.
Kuumbwa kwemamorekuru:
1. Carboxymethylcellulose (CMC):
Carboxymethylcellulose imhando ye cellulose, iyo polymer yakatsetseka inoumbwa nemayuniti eglucose akabatana ne β-1,4-glycosidic bonds. Kugadziriswa kwe cellulose kunosanganisira kuunzwa kwemapoka e carboxymethyl kuburikidza ne etherification, zvichigadzira carboxymethylcellulose. Boka re carboxymethyl rinoita kuti CMC isombe mumvura uye rinopa polymer hunhu hwakasiyana.
2. Sitachi:
Starch i carbohydrate inoumbwa nemayuniti eglucose akabatana ne α-1,4-glycosidic bonds. I polymer yechisikigo inowanikwa mumiti inoshandiswa semusanganiswa wekuchengetedza simba. Mamorekuru estarch anowanzo kuve nemhando mbiri dze glucose polymers: amylose (straight chains) uye amylopectin (branched chain structures).
Zvimiro zvemuviri:
1. Carboxymethylcellulose (CMC):
Kunyungudika: CMC inonyungudika mumvura nekuda kwekuvapo kwemapoka ecarboxymethyl.
Kusviba: Inoratidza kusviba kwakanyanya mumushonga, zvichiita kuti ive yakakosha mukushandiswa kwakasiyana-siyana kwakadai sekugadzira chikafu uye mishonga.
Kujeka: Mhinduro dzeCMC dzinowanzo ratidza pachena.
2. Sitachi:
Kunyungudika: Sitachi yemuno hainyungudike mumvura. Inoda gelatinization (kudziiswa mumvura) kuti inyungudike.
Kusviba: Starch paste ine viscosity, asi kazhinji inenge yakaderera pane CMC.
Kujeka: Mastarch paste anowanzova asina kujeka, uye mwero wekujeka kwawo unogona kusiyana zvichienderana nerudzi rwestarch.
manyuko:
1. Carboxymethylcellulose (CMC):
CMC inowanzogadzirwa kubva mu cellulose kubva mumiti yakadai sehuni kana donje.
2. Sitachi:
Zvirimwa zvakaita sechibage, gorosi, mbatatisi nemupunga zvine starch yakawanda. Ndicho chinhu chikuru chinowanikwa muzvikafu zvakawanda zvemazuva ano.
Maitiro Ekugadzira:
1. Carboxymethylcellulose (CMC):
Kugadzirwa kweCMC kunosanganisira etherification reaction ye cellulose ne chloroacetic acid mune alkaline medium. Izvi zvinoguma nekutsiviwa kwe hydroxyl groups mu cellulose ne carboxymethyl groups.
2. Sitachi:
Kubvisa sitachi kunosanganisira kupwanya masero emiti uye kubvisa granules dzesitachi. Sitachi inobviswa inogona kuitwa nenzira dzakasiyana-siyana, kusanganisira kugadziriswa uye gelatinization, kuti iwane hunhu hwaunoda.
Chinangwa uye mashandisirwo:
1. Carboxymethylcellulose (CMC):
Indasitiri yezvekudya: CMC inoshandiswa sechinosimbisa, chinosimbisa uye chinosanganisa chikafu muzvikafu zvakasiyana-siyana.
Mishonga: Nekuda kwehunhu hwayo hwekusunga uye kuputsika, inoshandiswa mukugadzira mishonga.
Kuchera Oiri: CMC inoshandiswa mumafuta anochera oiri kudzora rheology.
2. Sitachi:
Indasitiri yezvekudya: Starch ndiyo inonyanya kushandiswa muzvikafu zvakawanda uye inoshandiswa semushonga wekukora, mushonga wekugadzira jelly uye mukusimbisa muviri.
Indasitiri yemicheka: Starch inoshandiswa mukugadzira saizi yemachira kuti iome.
Indasitiri yepepa: Starch inoshandiswa mukugadzira mapepa kuwedzera simba repepa uye kuvandudza hunhu hwepamusoro.
Kunyangwe CMC nestarch zvese zviri polysaccharides, zvine musiyano mukuumbwa kwemamorekuru, hunhu hwemuviri, manyuko, maitiro ekugadzira uye mashandisirwo. CMC inonyungudika mumvura uye ine viscous zvakanyanya uye inowanzo shandiswa mukushandiswa kunoda hunhu uhwu, nepo starch iri polysaccharide inoshandiswa zvakanyanya muindasitiri yechikafu, machira uye mapepa. Kunzwisisa misiyano iyi kwakakosha pakusarudza polymer yakakodzera mashandisirwo chaiwo emaindasitiri neemabhizinesi.
Nguva yekutumira: Ndira-12-2024