CMC nthawi zambiri imakhala yophika poyipitsira ya inionic yokonzedwa ndi cellulose yokhala ndi caustic alkali ndi monochloroortic acid, ndi ma celecular olemera 6400 (± 1,000). Zopangidwa ndi zinthu zazikulu ndi sodium chloride ndi sodium glycolate. CMC ndi chikhalidwe cha cellulose. Amatchedwa kuti "kusinthidwa kwa Cellulose" ndi bungwe la chakudya ndiulimi wa United Nations ndi World Health Organisation (Ndani).
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Zizindikiro zazikulu kuti muyeze mtundu wa cmc ndi digiri ya zolowa m'malo mwake (DS) ndi chiyero. Nthawi zambiri, zinthu za CMC ndizosiyana pamene DS ndi yosiyana; Kukweza kuchuluka kwa malo osokoneza bongo, kulibwino kusinthika, komanso zabwinobwino kuwonekeratu. Malinga ndi malipoti, kuwonekera kwa cmc kuli bwino pomwe digiri ya mufilimu ndi 0,7-1.2, ndi mawonekedwe ake yankho lake ndi lalikulu pomwe mtengo wa PH ndi 6-9. Pofuna kuonetsetsa kuti, kuwonjezera pa kusankha kwa olemekezeka, zinthu zina zomwe zimakhudza kuchuluka kwa milingo yolowa m'malo mwa alkali ndi kusintha kwa nthawi, kutentha kwa madzi, kutentha , mtengo wa PH, yankho ndende ndi mchere.
Kusanthula kwa maubwino ndi zovuta za sodium carboxymethyl cellulose
Kukula kwa sodium carboxymethyl cellulose sikunachitikepo. Makamaka m'zaka zaposachedwa, kukulitsa magawo a ntchito ndi kuchepetsedwa kwa mitengo yopanga mapangidwe apanga ma carboxymethyl kwambiri celloul kwambiri. Zogulitsa zomwe zimagulitsidwa zimasakanikirana.
Kenako, momwe mungadziwire mtundu wa sodium carboxymethyl cellulose, timasanthula malingaliro ena mwakuthupi ndi mankhwala:
Choyamba, zitha kusiyanitsidwa ndi kutentha kwake kaboni. Kutentha wamba kwa mpweya wa sodium carboxyl cellose ndi 280-300 ° Carulose ndi 280-300 ° Cellulose ndi kaboni nthawi isanafike, ndiye kuti izi zimakhala ndi mavuto. (Nthawi zambiri ma carbonation amagwiritsa ntchito nduna ya muffle)
Kachiwiri, zimasiyanitsidwa ndi kutentha kwake kosatheka. Nthawi zambiri, sodium carboxymethyl cellulose imasintha mtundu akafika kutentha kwinakwake. Kutentha kwake ndi 190-200 ° C.
Chachitatu, chingazindikiridwe ku mawonekedwe ake. Kuwoneka kwa zinthu zambiri ndi ufa woyera, ndipo kukula kwake nthawi zambiri kumakhala ma mesh, komanso kuthekera kodutsa ndi 98,5%.
Sodium Carboxymethmethmethmethmethmethmethyl cellulose imagwiritsidwa ntchito kwambiri ndipo imakhala ndi mapulogalamu angapo, ndiye kuti pakhoza kukhala zitsamba zina pamsika. Ndiye mungazindikire bwanji ngati ndi chinthu chofunikira ndi omwe ogwiritsa ntchito amatha kudutsa mayeso otsatirawa.
Sankhani 0,5g ya sodium carboxymethyl cellulose, yomwe siyikutsimikiza ngati ndi chifukwa cha madzi a carboxylmethylmethmethyl Pangani yankho la yunifolomu, ozizira pambuyo pozindikira madzi, mayeso otsatirawa adachitika.
1. Onjezani madzi ku yankho la mayeso kuti achepetse maulendo 5, onjezani 0,5ml ya chromotropic acid kuyesa njira imodzi ya 1 dontho la mphindi 10 kuti uoneke wofiirira.
2. Onjezani 10 ml ya acetone mpaka 5 ml ya yankho, gwedezani ndikusakaniza bwino kupanga malo oyera.
3. Onjezani 1ML ya Techfate yoyeza yankho la 5ml la yankho la mayeso, sakanizani ndi kugwedeza kuti apange kuwala kwa buluu.
4. Zotsalira zomwe zimapezeka pofunafuna izi zikuwonetsa mchere wamtundu wa sodium, ndiye kuti, sodium carboxymethyl cellulose.
Mwanjira izi, mutha kudziwa ngati zogulidwa ndi sodium carboxylm ndi chiyero chake, zomwe zimapereka njira yosavuta yosankhira zinthu
Post Nthawi: Nov-12-2022