Usoro ule Xanthan gum

1. Sule olubility

Were 1 g sample, jiri nwayọọ nwayọọ wụsa n'ime beaker nke nwere mmiri 100 ml, maka nkeji 15, kpachara anya tinye mmanya na-akpali akpali n'ime mmiri, jiri nwayọọ nwayọọ meghee blender ka ọ bụrụ 200 r / min, ọ nwere ike gbazee kpamkpam mgbe minit 25 gasịrị. Dị ka usoro dị n'elu si dị, ihe nlele anaghị agbaze na ethanol, acetone ma ọ bụ ethyl ether.

2. Gel nnwale

Tinye mmiri 300 ml na beaker 500 ml, kpoo ọkụ ruo 80 ℃, mepee blender ka ọ dị ọsọ 200r / min, Iji kpalie ma tinye 1.5g akọrọ na 1.5g igurube beangum.mgbe ngwakọta n'ime ihe ngwọta, Nọgide na-akpali ihe karịrị 30 nkeji.(mmiri okpomọkụ adịghị ala karịa 60 ℃ n'oge edemede) Kwụsị ịkpali, jụrụ ma ọ dịkarịa ala awa 2 n'ime ụlọ okpomọkụ, mgbe okpomọkụ na-ebelata na 40 ℃, na-akpụ ihe gel. Dị ka usoro ahụ dị n'elu na nkwadebe nke 1% nke Ngwọta sample n'ụzọ dị iche, etinyela chịngọm igurube, na-enweghị gluu.

3.viscosity

3.1 Tọ ngwá 

Mita viscometer rotational nke ubi Brook ma ọ bụ arụmọrụ ndị ọzọ dakọtara.

3.2Tọnọdụ est

a) Ụdị rotor rotor: 3

b) The rotor ọsọ: 60 r / min

c) Atụ okpomọkụ:24 ℃ ~ 25 ℃

3.3 Usoro nyocha

3.3.1 Kwadebe ihe ngwọta nke nwere 1% sample na 1% potassium chloride.

a) Na akwụkwọ dị ọcha, kpọrọ nkụ dị ka ihe nlele sitere na 1.5 g na potassium chloride (nke ruru 0.01 g), agwakọta ya nke ọma;

b) Na-atụ 300 ml nke mmiri na-ekpo ọkụ n'ime beaker 400 ml

c) Were beaker dị n'elu na mmiri n'okpuru blender, mepee blender, kpalite ihe ngwakọta ahụ jiri nwayọọ nwayọọ gbanye n'ime mmiri mmiri na-akpali akpali na n'etiti iko mmiri, ma malite oge, 800 r / min maka awa 2, na-akpali okpomọkụ 24 ℃. ~ 25 ℃;

d) Kwụsị ịkpali, were iko ahụ, ya na mmanya mkpagharị ma ọ bụ ihe ndị ọzọ yiri ya n'elu na ala ngwọta ugboro ole na ole.

3.3.2 Mkpebi

Were ego kwesịrị ekwesị nke 1% ihe nlele na ngwọta 1% potassium chloride, tinye n'ụdị beaker 100 ml, mkpebi siri ike na ọnọdụ ndị edepụtara.

4.Ụkpụrụ ike shiee

4.1 Usoro mkpebi

Dị ka nzọụkwụ 3 si kwuo, uru viscosity nke 3 rotor ọsọ ruo 6 r / min na 60 r / min,

4.2 Nsonaazụ nke ngụkọta oge

A na-agbakọ ụkpụrụ ike shear site n'ụdị (1):

N=η1/η2 ………………………… (1)

Ụdị:

N - uru arụmọrụ shear;

η1 - viscosity nke uru na ọsọ 6 r / min, unit maka centipoise (cP);

η2- viscosity nke uru na ọsọ 60 r / min, unit maka centipoise (cP);

5.Akọrọ arọ ọnwụ

5.1 Ụkpụrụ

The sample ihicha ka mgbe nile arọ n'okpuru ọnọdụ nke a ụfọdụ okpomọkụ, gbakọọ furu efu ihe onwunwe àgwà.

5.2 Akụrụngwa

a) Glass na-atụ karama: n'ime dayameta 60 ~ 70 mm, nke dị elu n'okpuru 35 mm.

b) Igwe ọkụ ọkụ na-ekpo ọkụ mgbe niile na-ekpo ọkụ ọkụ

5.3 Usoro nyocha

Tinye karama na-atụ arọ na 105 ℃ + 1 ℃ oven akọrọ maka nkeji 30, ịdị arọ mgbe niile. Na karama na-atụ aro n'ụzọ ziri ezi dị ka 1.0 g ka 1.0 g sample (n'ụzọ ziri ezi na 0.0001 g), Mee, n'akụkụ ije, Mee sample bụ uniformly ekesa na Kalama na-atụ arọ, karama na-atụ ibu ma tinye ya na oven, Mepee okpu na karama na oven, Na-ehicha n'okpuru 105 ℃ + 1 ℃ maka awa 2, Mepee oven, kpuchie karama na-atụ ihe na ihe nlele ozugbo, Na-ajụ oyi ruo ụlọ okpomọkụ na draya, Constant arọ, Dị ka ibelata àgwà na sampling ukwu ngụkọta oge na akọrọ weightlessness.

5.4 Nsonaazụ nke ngụkọta oge

A na-agbakọ akụkụ akọrọ nke enweghị ịdị arọ n'ụdị (2):

X=[(m1-m2)/m]×100……………………… (2)

Ụdị:

X - akụkụ akọrọ nke enweghị ịdị arọ,%;

m1 - The quility nke na-atụ karama na sample tupu ihicha, unit bụ gram (g);

m2 - Quility nke karama na-atụ ihe na ihe nlele mgbe ihichachara, unit ahụ bụ gram (g);

m - àgwà nke ihe atụ, unit bụ gram (g).