Kedu otu esi anwale cellulose ether?

1. Ọdịdị:

Nyochaa anya n'okpuru ìhè gbasasịrị ekesa.

2. Viscosity:

Tụnye beaker dị elu nke 400 ml, tụọ 294 g mmiri n'ime ya, gbanye igwekota, wee gbakwunye 6.0 g nke cellulose ether a tụrụ atụ;kpalie na-aga n'ihu ruo mgbe agbazere kpamkpam, ma mee ngwọta 2%;Mgbe awa 3-4 gachara na nnwale nnwale (20 ± 2) ℃;jiri viscometer rotary NDJ-1 iji nwalee, wee họrọ nọmba viscometer kwesịrị ekwesị na rotor ọsọ n'oge ule.Gbanyụọ rotor ma tinye ya na ngwọta ma hapụ ya ka ọ kwụrụ maka nkeji 3-5;gbanye mgba ọkụ wee chere ka uru ahụ kwụsie ike, ma dekọọ nsonaazụ ya.Cheta na: (MC 40,000, 60,000, 75,000) Họrọ No. 4 rotor na a ọsọ nke 6 revolutions.

3. Etisara steeti na mmiri:

Lelee usoro na ọsọ nke mgbasa n'oge usoro nhazi ya na ngwọta 2%.

4. ọdịnaya ntụ:

Were ite ahụ ọkụ wee kpọọ ya ọkụ n'ime ọkụ ọkụ nke ịnyịnya na-esi esi, mee ka ọ dị jụụ n'ebe a na-ekpo ọkụ, ma tụọ ya ruo mgbe ịdị arọ ya na-adịgide adịgide.Were nke ọma (5 ~ 10) gram nke ihe atụ n'ime ite ọkụ, buru ụzọ rie crucible ahụ na ọkụ eletrik, ma mgbe ọ ruru carbonization zuru oke, tinye ya na ọkụ ọkụ na-esi ísì maka ihe dịka (3 ~ 4) h, wee tinye ya. n'ebe a na-ehicha ihe iji mee ka ọ dị jụụ.Na-atụ ruo mgbe ịdị arọ.Ngụkọ ntụ (X):

X = (m2-m1) / m0 × 100

Na usoro: m1 ——oke nke crucible, g;

m2 --Ngụkọta ọnụ ọgụgụ nke crucible na ntụ mgbe ịgbanye ọkụ, g;

m0 --oke nke ihe nlele, g;

5. Ọdịnaya mmiri (mfu na ihicha):

Tulee ihe nlele 5.0g na tray nke ihe nyocha mmiri ngwa ngwa ma dozie ya na akara efu nke ọma.Mee ka okpomọkụ dịkwuo elu ma gbanwee okpomọkụ ka ọ bụrụ (105± 3) ℃.Mgbe ọnụ ọgụgụ ngosi anaghị agagharị, detuo uru m1 (ntụzi aka ziri ezi bụ 5mg).

Ọdịnaya mmiri (mfu na ihicha X (%)) ngụkọta oge:

X = (m1 / 5.0) × 100