ʻO Carboxymethyl cellulose (CMC) kahi mea polymer multifunctional i hoʻohana nui ʻia i ka meaʻai, nā lāʻau lapaʻau, nā mea hoʻonaninani, ka ʻaila, ka hana pepa, nā lole a me nā ʻoihana ʻē aʻe. ʻO kāna mau pōmaikaʻi nui e pili ana i ka mānoanoa, stabilization, suspension, emulsification, mālama wai a me nā hana ʻē aʻe, no laila ua hoʻohana nui ʻia i nā kula he nui. Eia nō naʻe, ʻoiai ʻo kāna hana maikaʻi loa i nā noi he nui, aia kekahi mau hemahema a me nā palena o CMC, hiki ke kaupalena i kāna hoʻohana ʻana i kekahi mau manawa a i ʻole e koi i nā hana kikoʻī e lanakila ai i kēia mau hemahema.
1. Hiki ke hoʻoheheʻe ʻia
He ʻano koʻikoʻi ka solubility o CMC i ka wai, akā ma lalo o kekahi mau kūlana, hiki ke kaupalena ʻia ka solubility. No ka laʻana, ʻaʻohe hiki ke hoʻoheheʻe ʻia ka CMC ma nā wahi paʻakai kiʻekiʻe a i ʻole ka wai paʻakikī. I loko o kahi paʻakai kiʻekiʻe, hoʻemi ʻia ka repulsion electrostatic ma waena o nā kaulahao mole CMC, ka hopena o ka hoʻonui ʻana i nā pilina intermolecular, e pili ana i kona solubility. ʻIke ʻia kēia i ka hoʻohana ʻia ʻana i ka wai kai a i ʻole ka wai i loaʻa ka nui o nā minerala. Eia kekahi, hoʻoheheʻe lohi ʻo CMC i ka wai haʻahaʻa haʻahaʻa a lōʻihi paha e hoʻoheheʻe ʻia, hiki ke hoʻemi ʻia ka hana ʻoihana.
2. Poor viscosity paʻa
Hiki ke hoʻopili ʻia ka viscosity o CMC e ka pH, ka mahana, a me ka ikaika ionic i ka wā e hoʻohana ai. Ma lalo o nā kūlana acidic a alkaline paha, hiki ke emi nui ka viscosity o CMC, e pili ana i kona hopena mānoanoa. He hopena koʻikoʻi paha kēia i kekahi mau noi e koi ana i ka viscosity paʻa, e like me ka hoʻoponopono ʻana i ka meaʻai a me ka hoʻomākaukau lāʻau. Eia kekahi, ma lalo o nā kūlana wela kiʻekiʻe, hiki i ka viscosity o CMC ke hāʻule wikiwiki, e hopena i ka palena palena i kekahi mau noi wela kiʻekiʻe.
3. He maikaʻi ʻole ka biodegradability
ʻO CMC kahi cellulose i hoʻololi ʻia me ka lohi o ka degradation rate, ʻoi aku ka nui ma nā wahi kūlohelohe. No laila, he haʻahaʻa haʻahaʻa ka biodegradability CMC a hiki ke kau i kekahi kaumaha i ke kaiapuni. ʻOiai ʻoi aku ka maikaʻi o ka CMC i ka biodegradation ma mua o kekahi mau polymers synthetic, ʻoi aku ka lōʻihi o kāna kaʻina degradation. Ma kekahi mau noi pili kaiapuni, lilo paha kēia i mea noʻonoʻo nui, e koi ana i ka poʻe e ʻimi i nā mea ʻē aʻe e pili ana i ke kaiapuni.
4. Nā pilikia paʻa kemika
ʻAʻole paʻa paha ka CMC i kekahi mau kaiapuni kemika, e like me ka waika ikaika, ke kumu ikaika a i ʻole nā kūlana oxidative. Hiki ke hoʻohaʻahaʻa a i ʻole nā hopena kemika. Hiki ke kaupalena ʻia ka hoʻohana ʻana i kēia ʻano paʻa ʻole ma nā wahi kemika kūikawā. I loko o kahi kaiapuni oxidizing kiʻekiʻe, hiki i ka CMC ke hoʻohaʻahaʻa i ka oxidative, a laila e nalowale ana kāna hana. Eia kekahi, i kekahi mau haʻina i loaʻa i nā ion metala, hiki i ka CMC ke hui pū me nā ion metala, e pili ana i kona solubility a me ka paʻa.
5. Kumukuai kiekie
ʻOiai ʻo CMC kahi mea me ka hana maikaʻi loa, ʻoi aku ke kiʻekiʻe o kāna kumukūʻai hana, ʻoi aku ka nui o nā huahana CMC me ka maʻemaʻe kiʻekiʻe a i ʻole nā hana kikoʻī. No laila, i kekahi mau noi koʻikoʻi koʻikoʻi, ʻaʻole pono ka hoʻohana ʻana o CMC. Hiki paha kēia i nā hui e noʻonoʻo i nā mea ʻē aʻe i ʻoi aku ka maikaʻi o ke kumukūʻai i ke koho ʻana i nā mānoanoa a i ʻole stabilizers, ʻoiai ʻaʻole maikaʻi kēia mau koho e like me ka CMC i ka hana.
6. Loaʻa paha nā huahana i ka hana hana
ʻO ke kaʻina hana o ka CMC e pili ana i ka hoʻololi kemika o cellulose, hiki ke hana i kekahi mau huahana, e like me ka sodium chloride, sodium carboxylic acid, a me nā mea ʻē aʻe. Eia kekahi, hiki i nā reagents kemika i hoʻohana ʻia i ke kaʻina hana ke loaʻa ka hopena maikaʻi ʻole i ke kaiapuni inā ʻaʻole i mālama pono ʻia. No laila, ʻoiai he nui nā waiwai maikaʻi o CMC, ʻo ka hopena o ke kaiapuni a me ke olakino o kāna kaʻina hana he mea pono e noʻonoʻo ʻia.
7. ʻO ka biocompatibility palena
ʻOiai ua hoʻohana nui ʻia ʻo CMC i nā lāʻau lapaʻau a me nā mea hoʻonaninani a maikaʻi ka biocompatibility, ʻaʻole lawa paha kona biocompatibility i kekahi mau noi. No ka laʻana, i kekahi mau hihia, hiki i ka CMC ke hoʻoulu i ka ʻili liʻiliʻi a i ʻole ka hopena maʻi, ʻoi aku ka nui o ka hoʻohana ʻana i nā kiʻekiʻe kiʻekiʻe a i ʻole no ka manawa lōʻihi. Eia kekahi, hiki i ka metabolism a me ka hoʻopau ʻana i ka CMC i loko o ke kino ke lōʻihi ka manawa, ʻaʻole kūpono paha i kekahi mau ʻōnaehana lawe lāʻau.
8. ʻAʻole pono nā mea mechanical
Ma ke ʻano he mānoanoa a me ka stabilizer, he haʻahaʻa haʻahaʻa ka ikaika mechanical CMC, ʻo ia paha ke kumu palena i kekahi mau mea e koi ai i ka ikaika kiʻekiʻe a i ʻole ka elasticity kiʻekiʻe. No ka laʻana, i loko o kekahi mau textiles a i ʻole nā mea composite me nā koi ikaika kiʻekiʻe, hiki ke kaupalena ʻia ka hoʻohana ʻana o CMC a i ʻole pono e hoʻohana pū ʻia me nā mea ʻē aʻe e hoʻomaikaʻi ai i kona mau waiwai mechanical.
Ma ke ʻano he mea hoʻohana nui ʻia, carboxymethyl cellulose (CMC) he nui nā pono, akā ʻaʻole hiki ke mālama ʻia kona mau hemahema a me nā palena. Ke hoʻohana nei i ka CMC, pono e noʻonoʻo pono ʻia nā mea e like me kona solubility, viscosity stability, chemical stability, environmental impact and cost e like me ke ʻano o ka noi. Eia hou, hiki i ka noiʻi a me ka hoʻomohala ʻana ke hoʻomaikaʻi hou i ka hana o CMC a lanakila i kāna mau hemahema i kēia manawa, a laila e hoʻonui ai i kona hiki ke hoʻohana ʻia ma nā kahua ʻoi aku.
Ka manawa hoʻouna: ʻAukake-23-2024