Caws Tsis Taus Raug
Dec 09, 2020
1 、 Sodium carboxymethyl cellulose
CMC yog cellulose derivative ntawm qabzib nrog polymerization degree ntawm 200-500, etherification degree ntawm 0.6-0.7, dawb los yog ze li cov hmoov dawb lossis cov tshuaj fibrous, tsis muaj ntxhiab thiab hygroscopic. Kev hloov pauv qib (etherification degree) ntawm pawg carboxyl txiav txim siab nws lub zog. Thaum etherification degree siab dua 0.3, nws yog soluble hauv alkali tov.
2 、 Agar
Agar ua los ntawm cov zaub pob paj ntoo extract yog ib qho tseem ceeb ntawm cov pos hniav. Nws tsis muaj xim thiab tsis muaj kev kho kom zoo, tab sis nws yog cov khoom thiab soluble hauv dej kub. Agar tuaj yeem siv los ua cov khoom noj txias thiab microbial kab lis kev cai nruab nrab. Agar feem ntau hu ua zaub cob pob lossis hmoov nplej, tseem hu ua shihuajiao. Agar yog nplua nuj nyob hauv kev noj haus fiber ntau (80.9%).
3 、 Xanthan ntawm cov pos hniav
Thaum lub siab tsis tuaj yeem (tsawg dua 0.5%), nws muaj qhov siab tshaj plaws ntawm cov pos hniav uas ntuj thiab yog soluble hauv dej txias. Qhov dej tov yog ib qho pseudoplastic txaus. Thaum shear kev ntxhov siab txo qis, viscosity poob qis zuj zus, tab sis thaum shear kev ntxhov siab poob qis, viscosity tam sim ntawd rov qab. Lub viscosity ntawm aqueous tov yog qhov tas mus li nyob rau hauv ntau qhov kub thiab txias.
