E nānā i ka Cellulose ethers

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

ʻO Carboxymethylcellulose (CMC) a me cellulose nā polysaccharides me nā waiwai like ʻole a me nā noi. Pono ka hoʻomaopopo ʻana i ko lākou ʻokoʻa e ʻimi i kā lākou mau hale, nā waiwai, nā kumu, nā ʻano hana, a me nā noi.

Cellulose:

1. Ka wehewehe a me ka hoʻolālā:

ʻO Cellulose kahi polysaccharide maoli i haku ʻia me nā kaulahao laina o nā ʻāpana β-D-glucose i hoʻopili ʻia e nā paʻa β-1,4-glycosidic.

ʻO ia ka mea hana nui o nā paia o nā mea kanu, e hāʻawi ana i ka ikaika a me ka rigidity.

2. Puna:

He nui ka cellulose ma ke ʻano a loaʻa mua mai nā kumu mea kanu e like me ka lāʻau, ka pulupulu a me nā mea fibrous ʻē aʻe.

3. Hana ʻia:

ʻO ka hana ʻana o ka cellulose e pili ana i ka lawe ʻana i ka cellulose mai nā mea kanu a laila e hoʻomaʻamaʻa iā ia ma o nā ʻano hana e like me ka pulping kemika a i ʻole ka mīkini mīkini e loaʻa ai ka fiber.

4. Hana:

Ma kona ʻano maoli, ʻaʻole hiki ke hoʻoheheʻe ʻia ka cellulose i ka wai a me ka hapa nui o nā solvents organik.

Loaʻa iā ia ka ikaika tensile kiʻekiʻe, kūpono ia no nā noi kahi koʻikoʻi ka ikaika a me ka lōʻihi.

ʻO ka cellulose ka biodegradable a me ke kaiapuni.

5. Noi:

Loaʻa i ka Cellulose nā ʻano noi like ʻole, me ka hana pepa a me ka papa, textiles, cellulose-based plastics, a ma ke ʻano he mea hoʻohui fiber meaʻai.

Carboxymethylcellulose (CMC):

1. Ka wehewehe a me ka hoʻolālā:

ʻO Carboxymethylcellulose (CMC) he mea ia o ka cellulose kahi i hoʻokomo ʻia ai nā hui carboxymethyl (-CH2-COOH) i loko o ka iwi kuamoʻo.

2. Hana ʻia:

Hoʻopuka pinepine ʻia ʻo CMC ma o ka mālama ʻana i ka cellulose me ka chloroacetic acid a me ka alkali, ka hopena o ka hoʻololi ʻana o nā pūʻulu hydroxyl i ka cellulose me nā hui carboxymethyl.

3. Solubility:

ʻAʻole like me ka cellulose, hiki ke hoʻoheheʻe ʻia ka CMC i ka wai a hana i kahi hopena colloidal a i ʻole gel e pili ana i ka ʻike.

4. Hana:

Loaʻa iā CMC nā waiwai hydrophilic a me ka hydrophobic, kūpono ia no nā ʻano noi like ʻole i ka meaʻai, lāʻau lapaʻau a me nā ʻoihana ʻoihana.

Loaʻa iā ia nā mana hana kiʻiʻoniʻoni a hiki ke hoʻohana ʻia ma ke ʻano he mānoanoa a i ʻole stabilizer.

5. Noi:

Hoʻohana ʻia ʻo CMC i ka ʻoihana meaʻai ma ke ʻano he mānoanoa, stabilizer a me ka emulsifier i nā huahana e like me ka ice cream a me nā pāpale salakeke.

I nā lāʻau lapaʻau, hoʻohana ʻia ʻo CMC ma ke ʻano he mea hoʻopaʻa i nā papa papa.

Hoʻohana ʻia ia i ka nui a me ka hoʻopau ʻana o ka ʻoihana textile.

ʻokoʻa:

1. Solubility:

ʻAʻole hiki ke hoʻoheheʻe ʻia ka cellulose i ka wai, ʻoiai ʻo CMC e hoʻoheheʻe ʻia i ka wai. ʻO kēia ʻokoʻa i ka solubility e ʻoi aku ka maʻalahi o ka CMC i nā ʻano noi like ʻole, ʻoi aku hoʻi i nā ʻoihana kahi i makemake ʻia ai nā ʻano wai.

2. Kaʻina hana:

ʻO ka hana ʻana o ka cellulose e pili ana i ka ʻili a me ka hana ʻana mai nā mea kanu, ʻoiai ʻo CMC e synthesized ma o kahi kaʻina hoʻololi kemika e pili ana i ka cellulose a me ka carboxymethylation.

3. Kapili:

Loaʻa i ka Cellulose kahi ʻano laina a me ka lālā ʻole, ʻoiai ʻo CMC he mau hui carboxymethyl i hoʻopili ʻia i ka iwi kuamoʻo cellulose, e hāʻawi ana i kahi ʻano hoʻololi me ka solubility i hoʻonui ʻia.

4. Noi:

Hoʻohana nui ʻia ʻo Cellulose i nā ʻoihana e like me ka pepa a me nā textiles kahi e hāʻawi ai kona ikaika a me ka insolubility i nā pono.

ʻO CMC, ma ka ʻaoʻao ʻē aʻe, hoʻohana ʻia i loko o kahi ākea o nā ʻoihana, me ka meaʻai, nā lāʻau lapaʻau a me nā mea hoʻonaninani, ma muli o kona hoʻoheheʻe wai a me ka versatility.

5. Nā waiwai kino:

Ua ʻike ʻia ʻo Cellulose no kona ikaika a me ka paʻakikī, e hāʻawi ana i ka paʻa o nā mea kanu.

Loaʻa iā CMC kekahi mau waiwai o ka cellulose akā loaʻa pū kekahi, e like me ka hiki ke hana i nā gels a me nā hoʻonā, hāʻawi iā ia i kahi ākea o nā noi.

ʻOiai he kumu maʻamau ka cellulose a me carboxymethyl cellulose, ua alakaʻi ko lākou mau ʻano like ʻole a me nā waiwai i nā noi like ʻole i nā ʻoihana like ʻole. ʻO ka ikaika a me ka hiki ʻole o ka Cellulose ke lilo i mea maikaʻi i kekahi mau kūlana, ʻoiai ʻo ka wai hoʻoheheʻe wai o CMC a me ka hoʻololi ʻana i hoʻololi ʻia e lilo ia i mea waiwai i loko o nā ʻano huahana a me nā hana.


Ka manawa hoʻouna: Dec-26-2023
WhatsApp kamaʻilio pūnaewele!