Izici zohlelo lokusebenza kanye nezidingo zenqubo ye-CMC ekudleni

I-Sodium Carboxymethyl Cellulose, okubizwa ngokuthi yi-carboxymethyl cellulose (CMC) uhlobo lwe-high-polymer fiber ether elungiselelwe ukuguqulwa kwamakhemikhali kwe-cellulose yemvelo yemvelo. Isakhiwo saso ikakhulukazi iyunithi ye-D-glucose ngokusebenzisa i-β (1 → 4) i-glycosidic bond exhunyiwe izingxenye. Ukusetshenziswa kwe-CMC kunezinzuzo eziningi ngaphezu kwabanye abakhulu bokudla.

01
I-CMC isetshenziswa kabanzi ekudleni

(1) I-CMC inokuqina okuhle

Ekudleni okubandayo okufana nama-popsicles kanye no-ayisikhilimu, kungalawula ukwakheka kwamakristalu eqhwa, kwandise inani lokunwetshwa futhi kugcinwe ukwakhiwa okufanayo, kumelana nokuncibilika, nokunambitheka okuhle, futhi kwamhlophe.

Emikhiqizweni yobisi, noma ngabe ubisi olunambithekile, ubisi lwezithelo noma i-yogurt, lingaphendula ngamaprotheni ngaphakathi kwe-isoelectric iphuzu lesakhiwo se-PH (PH4.6) ukwakha ukuqina kwe-emulsion futhi uzuze ukumelana kwamaprotheni.

(2) I-CMC ingahlanganiswa nabanye abaqiniswayo kanye nama-emulsifiers

Emikhiqizweni yokudla neziphuzo, abakhiqizi abajwayelekile basebenzisa izitebhisi ezahlukahlukene, ezinjengokuthi: xanthan gum, i-ntarthan, dextrin, njll.

(3) I-CMC ine-pseudoplalicity

I-viscosity ye-CMC ibuyiselwe emuva emazingeni okushisa ahlukahlukene. Njengoba izinga lokushisa likhuphuka, ukubonakala kwesisombululo kuyancipha, okuphambene nalokho; Lapho amandla e-shear ekhona, ukubonakala kwe-CMC kuzokwehla, futhi ngokwanda kwamandla we-shear, i-viscosity izokwehla. Lezi zakhiwo zinika amandla i-CMC ukunciphisa umthwalo we-Equiple futhi zithuthukise ukusebenza kahle kwe-homogenization lapho kuvusa amapayipi, ukuhambisa amapayipi, kanye nepayipi, okungenakuthenjwa abanye abaqinisi.

02
Izidingo Zenqubo

Njenge-stabilizer esebenzayo, i-CMC izothinta umphumela wayo uma isetshenziswe ngokungafanele, futhi idale ukuthi umkhiqizo udwetshwe. Ngakho-ke, nge-CMC, kubaluleke kakhulu ukuhlakaza ngokuphelele nangesisombululo sokuthuthukisa ukusebenza kwayo, ukunciphisa umthamo, ukuthuthukisa ikhwalithi yomkhiqizo nokukhulisa isivuno. Ikakhulu, ukunakwa kufanele kukhokhwe kwinqubo ngayinye yenqubo:

(1) Izithako

1. I-High-Speed ​​Shear Dispiression Dispion Dispacerion ene-Mechage Force

Yonke imishini enekhono lokuxuba lingasetshenziswa ukusiza i-CMC ukusakaza emanzini. Ngokugunda okusheshisa kakhulu, i-CMC ingafakwa ngokulinganayo emanzini ukusheshisa ukuqedwa kwe-CMC.

Abanye abakhiqizi njengamanje basebenzisa abahlanganisi bemputer yamanzi noma amathangi okuxuba aphezulu.

2. Ushukela osomile wokuhlukanisa wokuhlukanisa

Hlanganisa kahle nge-CMC noshukela ogxekile ngesilinganiso esingu-1: 5, bese ufafaza kancane ngaphansi kokuvusa njalo ukuze ukhiphe i-CMC.

3. Qhafaza emanzini agcwele ushukela

NjengoCaramel, njll., Kungasheshisa ukuchithwa kwe-CMC.

(2) Ukungezwa kwe-acid

Kwezinye iziphuzo ezi-acidic, ezinjenge-yogurt, imikhiqizo engavikeleki ye-acid kumele ikhethwe. Uma zisebenza ngokujwayelekile, ikhwalithi yomkhiqizo ingathuthukiswa futhi izulu lomkhiqizo kanye ne-stratification kungavinjelwa.

1. Lapho engeza i-acid, izinga lokushisa le-acid ukwengezwa kufanele lilawulwe ngokuqinile, ngokuvamile ≤20 ° C.

2. Ukuhlushwa acid kufanele kulawulwe ku-8-20%, okuphansi okungcono.

I-3. I-Acid Exploss admagets admatic indlela yokufafaza, futhi ingezwe eceleni kwesiqondiso se-tangelity yesilinganiso sesitsha, ngokuvamile imizuzu eyi-1-3.

4. Slurry Speed ​​n = 1400-2400r / m

(3) homogeneous

1. Inhloso ye-emulsation

Uketshezi lokuphakelwa olunamafutha, oluqukethe amanoni, i-CMC kufanele ihlanganiswe ne-emulsifier, njenge-monogilyceride, ingcindezi ye-homogenization ingu-18-25mpa, futhi izinga lokushisa lingu-60-70 ° C.

2. Injongo ehlukanisiwe

I-Homogenization, uma izithako ezahlukahlukene ekuqaleni zingafani ngokuphelele, kusenezinhlayiya ezithile ezincane, kufanele kube yi-homogenized, umfutho we-homogenization yi-10MPA, futhi izinga lokushisa lingu-60-70 ° C.

(4) inzalo

I-CMC ekushiseni okuphezulu, ikakhulukazi lapho izinga lokushisa liphakeme kune-50 ° C isikhathi eside, i-viscosity ye-CMC enekhwalithi engeyinhle izokwehla ngokungaguquki. I-viscosity ye-CMC yabakhiqizi abajwayelekile izokwehla ngokujulile ku-80 ° C imizuzu engama-30, ngakho-ke inzalo noma ukufakwa kwezimali okusheshayo kungasetshenziswa. Indlela yokubulala inzalo yokufinyeza isikhathi se-CMC ekushiseni okuphezulu.

(5) Ezinye izinyathelo

1. Ikhwalithi yamanzi akhethiwe kufanele ibe ngamanzi ahlanzekile futhi aphathwe amanzi kampompi ngangokunokwenzeka. Amanzi amahle akufanele asetshenziselwe ukugwema ukutheleleka nge-microbial futhi athinte ikhwalithi yomkhiqizo.

2 Vimbela ukufakwa kwe-walkent metal ion.

3. Ngemuva kokusetshenziswa ngakunye kwe-CMC, umlomo wesikhwama sokupakisha kufanele aboshwe ngokuqinile ukuvikela ukumuncwa komswakama nokuwohloka kwe-CMC.

03
Izimpendulo zemibuzo ekusebenziseni i-CMC

Ukubonakala okuphansi, okubonakalayo okuphakathi nendawo, kanye nokuvezwa okuphezulu okuhlukaniswe ngokuhlelekile? Ngabe kuzoba nomehluko ngokungaguquguquki?

Phendula:
Kuyaqondakala ukuthi ubude bomakete we-molecular buhlukile, noma isisindo samangqamuzana sehlukile, futhi sahlukaniswa saba ukuvuma okuphansi, okuphakathi nokuphezulu. Vele, ukusebenza kwe-macroscopic kuhambelana nokubonakala okuhlukile. Ukuhlushwa okufanayo kunokubonakala okuhlukile, ukuqina komkhiqizo kanye nesilinganiso se-acid. Ubudlelwano obuqondile ikakhulukazi buya ngesisombululo somkhiqizo.

Yikuphi ukusebenza okukhethekile kwemikhiqizo ngezinga elithile lokufakwa esikhundleni esiphezulu kwe-1.15? Ngamanye amagama, kukhuphuka izinga lokufaka esikhundleni, ukusebenza okuthile komkhiqizo kuthuthukisiwe?

Phendula:
Umkhiqizo unezinga eliphakeme lokufaka esikhundleni, ukhuphuke kakhulu, futhi wehliswe kakhulu i-pseudoplasticity. Imikhiqizo enokubonakala okufanayo inesilinganiso esiphakeme sokufakwa esikhundleni kanye nomuzwa osobala ngokwengeziwe. Imikhiqizo enezinga eliphakeme lokufaka esikhundleni selikhambi elicwebezelayo, kuyilapho imikhiqizo enezinga elijwayelekile lokufaka esikhundleni sekhambi elimhlophe.

Kulungile ukukhetha i-viscosity ephakathi yokwenza amaprotheni avuthiwe?

Phendula:
Imikhiqizo ephakathi nendawo ephansi, izinga lokufaka esikhundleni licishe libe ngu-0.90, kanye nemikhiqizo enokumelana ne-acid engcono.

I-CMC ingancipha kanjani ngokushesha? Kwesinye isikhathi, ngemuva kokubilisa, kuncibilikisa kancane.

Phendula:
Hlanganisa namanye ama-colloids, noma uhlakaze nge-1000-1200 rpm agaritator.

Ukuchazwa kwe-CMC akukuhle, i-hydrophicicity yinhle, futhi kulula ukuyihlanganisa, futhi imikhiqizo ene-degree ephezulu kakhulu ibonakala! Amanzi afudumele ancibilikisa ngokushesha kunamanzi abandayo. Ukubilisa akunconywa. Ukupheka isikhathi eside kwemikhiqizo ye-CMC kuzobhubhisa isakhiwo samangqamuzana futhi umkhiqizo uzolahlekelwa ukubonakala kwawo!