He aha ka ʻokoʻa ma waena o ka sodium CMC a me CMC?

ʻO ka sodium carboxymethylcellulose (NaCMC) a me ka carboxymethylcellulose (CMC) nā huaʻelua o ka cellulose, he polymer maoli i loaʻa i nā paia o nā mea kanu. Loaʻa kēia mau pūhui i nā noi ma nā ʻoihana like ʻole, me ka meaʻai, nā lāʻau lapaʻau, nā textiles, a me nā mea hou aku.

Sodium Carboxymethylcellulose (NaCMC):

1. Kemimi hale:

Lawe ʻia ka NaCMC mai ka cellulose ma o ke kaʻina hana hoʻololi kemika. Hoʻokomo ʻia nā hui Carboxymethyl (-CH2-COOH) i loko o ka hale cellulose, a pili nā ion sodium me kēia mau pūʻulu.
ʻO ka paʻakai sodium o CMC e hāʻawi i ka hoʻoheheʻe wai i ka polymer.

2. Solubility:

Hiki ke hoʻoheheʻe ʻia ka NaCMC i ka wai. ʻO ka loaʻa ʻana o nā ion sodium e hoʻonui i kona solubility i ka wai i hoʻohālikelike ʻia me ka cellulose unmodified.

3. Nā hiʻohiʻona a me nā hana:

Hana ma ke ʻano he mānoanoa, stabilizer a me ka mea mālama wai i nā ʻano noi.
Hōʻike i ka hana pseudoplastic a i ʻole ka shear-thinning, ʻo ia hoʻi, e emi ana kona viscosity ma lalo o ke koʻikoʻi shear.

4. Noi:

ʻOihana Meaʻai: Hoʻohana ʻia ma ke ʻano he mea mānoanoa i nā huahana meaʻai e like me ka ʻuala, ka ice cream a me nā meaʻai bakena.

Lapaʻau: Hoʻohana ʻiai loko o nā ʻano hana no kāna mau mea paʻa a hoʻonui i ka viscosity.

ʻO ka ʻaila ʻaila: hoʻohana ʻia e hoʻomalu i ka viscosity a me ka nalowale o ka wai i nā wai wili.

5. Hana ʻia:

Hoʻopili ʻia e ka hopena o ka cellulose me ka sodium hydroxide a me ka waikawa monochloroacetic.

Carboxymethylcellulose (CMC):

1. Kemimi hale:

ʻO CMC ma kahi ʻano ākea e pili ana i ke ʻano carboxymethylated o cellulose. ʻAʻole pahapili i nā iona sodium.

Hoʻokomo ʻia nā hui Carboxymethyl i loko o ka iwi kuamoʻo cellulose.

2. Solubility:

Hiki ke noho ʻia ka CMC ma nā ʻano he nui, me ka paʻakai sodium (NaCMC) a me nā paʻakai ʻē aʻe e like me ka calcium CMC (CaCMC).

ʻO ka sodium CMC ka mea maʻamau i hoʻoheheʻe ʻia i ka wai, akā ma muli o ka noi, hiki ke hoʻololi ʻia ʻo CMC i mea liʻiliʻi i ka wai.

3. Nā hiʻohiʻona a me ka hanaons:

E like me NaCMC, CMUa waiwai ʻia ʻo C no kona mānoanoa, hoʻopaʻa, a mālama i ka wai.

ʻO ke koho o CMC type (sodium, calcium, etc.) pili i nā waiwai i makemake ʻia o ka huahana hope.

4. Noi:

Hoʻohana nui ʻia i ka ʻoihana meaʻai, pharmaceutical, textile, ceramics a me ka hana pepa.

ʻano ʻokoʻasHiki ke koho ʻia ʻo CMC ma muli o nā koi kikoʻī o ka noi.

5. Hana ʻia:

Hiki i ka Carboxymethylation o cellulose ke komo i nā ʻano hopena like ʻole a me nā reagents, e alakaʻi ana i ka hoʻokumu ʻana o nā ʻano CMC.

ʻO ka ʻokoʻa nui ma waena o ka sodium CMC a me CMC ʻo ka hele ʻana o nā ion sodium. ʻO ka sodium CMC e pili pono ana i ka paʻakai sodium o carboxymethyl cellulose, he mea hiki ke hoʻoheheʻe ʻia i ka wai. ʻO CMC, ma ka ʻaoʻao ʻē aʻe, he huaʻōlelo ākea e uhi ana i nā ʻano like ʻole o ka carboxymethylated cellulose, me ka sodium a me nā paʻakai ʻē aʻe, kēlā me kēia me kāna mau waiwai ponoʻī a me nā noi. ʻO ka koho ma waena o ka sodium CMC a me CMC e pili ana i ka hoʻohana i manaʻo ʻia a me nā waiwai i makemake ʻia o ka huahana hopena.