Uburyo bwo Kwipimisha Xanthan

1. Sikizamini cya olubility

Fata icyitegererezo cya 1 g, usuke buhoro muri beaker irimo amazi ya ml 100, muminota 15, witondere shyira akabari mumazi, fungura buhoro buhoro blender kugirango wihute 200 r / min, irashobora gushonga burundu nyuma yiminota 25, ukurikije uburyo bwavuzwe haruguru ko ingero zidashonga muri Ethanol, acetone cyangwa etil ether.

2. Gikigeragezo

Ongeramo amazi 300 ml mumashanyarazi ya 500, shyushya kuri 80 ℃, fungura blender kugirango wihute 200r / min, Kubyutsa no kongeramo 1.5g byumye hamwe na 1.5g inzige zinzige.mugihe imvange mubisubizo, Komeza kubyutsa iminota irenga 30.. icyitegererezo cyibisubizo bitandukanye, ntukongereho inzige ibishyimbo, nta kole.

3.ububobere

3.1 T.igikoresho 

Brook field rotation viscometer viscosity metero cyangwa indi mikorere ihwanye.

3.2Timiterere

a) Ubwoko bwa rotor rotor: 3

b) Umuvuduko wa rotor: 60 r / min

c) Gupima ubushyuhe: 24 ℃ ~ 25 ℃

3.3 Intambwe zo gusesengura

3.3.1 Gutegura igisubizo kirimo 1% sample na potasiyumu ya chloride 1%.

a) Hamwe nimpapuro zisukuye, zumye ukurikije urugero rwa 1.5 g na chloride ya potasiyumu (neza na 0,01 g), bivanze neza;

b) Gupima ml 300 y'amazi yatoboye muri 400 ml

c) Fata inzoga yavuzwe haruguru n'amazi munsi ya blender, fungura blender, uzunguruze icyitegererezo kivanze buhoro buhoro mumazi ya stir no hagati yikirahure cyamazi, hanyuma utangire igihe, 800 r / min mumasaha 2, ushushe ubushyuhe 24 ℃ ~ 25 ℃;

d) Reka guhagarika, gufata igikombe, hamwe na stir bar cyangwa ibindi bintu bisa hejuru-hasi igisubizo inshuro nke.

3.3.2

Fata urugero rukwiye rwa 1% yumuti wicyitegererezo hamwe na 1% potasiyumu ya chloride yumuti, shyira mubwoko bwa ml 100, kugena mubihe byagenwe.

4.Intama zingirakamaro

4.1 Uburyo bwo kumenya

Ukurikije intambwe ya 3, ukurikije agaciro ka viscosity yumuvuduko wa rotor 3 kugeza 6 r / min na 60 r / min,

4.2 Ibisubizo byo kubara

Intama zingirakamaro zibarwa kubwoko (1):

N = η1 / η2 …………………… （1）

Ubwoko:

N - kogosha agaciro agaciro;

η1 - ubwiza bwagaciro hamwe n'umuvuduko 6 r / min, igice cya centipoise (cP);

η2- ubwiza bwagaciro hamwe n'umuvuduko 60 r / min, igice cya centipoise (cP);

5.Kugabanya ibiro byumye

5.1 Ihame

Icyitegererezo cyumye kugeza kuburemere burigihe ukurikije ubushyuhe runaka, ubare ubwiza bwibintu byatakaye.

5.2 Igikoresho

a) Ikirahure gipima icupa: imbere ya diameter 60 ~ 70 mm, hejuru ya mm 35.

b) Gushyushya amashanyarazi guhora yumisha ubushyuhe

5.3 Intambwe zo gusesengura

Shira icupa ripima kuri 105 ℃ + 1 oven ifuru yumye muminota 30, uburemere burigihe.Mu icupa ripima neza ukurikije urugero rwa 1.0 g kugeza kuri 1.0 g (byuzuye kugeza 0.0001 g), Kubaka, kugenda kuruhande, Gukora sample ikwirakwizwa kimwe muri gupima icupa, Imizigo ipima icupa ukayishyira mu ziko, Fungura ingofero hamwe nudupapuro twa icupa mu ziko, Kuma munsi ya 105 ℃ + 1 ℃ kumasaha 2, Fungura ifuru, Gupfuka icupa ripima hamwe nicyitegererezo ako kanya, Gukonjesha ubushyuhe bwicyumba muri icyuma, Uburemere burigihe, Ukurikije kugabanya ubwiza hamwe nicyitegererezo cyo kubara uburemere bwumye.

5.4 Ibisubizo byo kubara

Igice cyumye cyuburemere butabarwa kubwoko (2):

X = [(m1-m2) / m] × 100 …………………… （2）

Ubwoko:

X - igice kinini cyumye cyuburemere,%;

m1 -Ubushobozi bwo gupima icupa nicyitegererezo mbere yo gukama, igice ni garama (g);

m2 - Ubushobozi bwo gupima icupa nicyitegererezo nyuma yo gukama, igice ni garama (g);

m - ubuziranenge bw'icyitegererezo, igice ni garama (g).