ʻO Sodium carboxymethyl cellulose solulose i ka wai

Hoʻolauna

ʻO Carboxymethyl cellulose (CMC) kahi ʻano o ka cellulose derivative i hoʻohana nui ʻia i nā ʻoihana like ʻole, me ka meaʻai, nā lāʻau lapaʻau, ka pepa, a me nā textiles. He polymer hiki ke hoʻoheheʻe ʻia i ka wai i hana ʻia ma ka hana ʻana i ka cellulose me ka sodium monochloroacetate a i ʻole ka sodium dichloroacetate i mua o kahi alkali. ʻO ka CMC kahi pauka keʻokeʻo, ʻala ʻole, ʻono ʻole i hoʻohana ʻia ma ke ʻano he mea mānoanoa, stabilizer, emulsifier, a me suspending agent i nā huahana like ʻole. Hoʻohana ʻia ia ma ke ʻano he mea hoʻopaʻa i nā papa a me nā capsules, a ma ke ʻano he lubricant i ka hana ʻana i nā papa.

ʻO ka solubility o CMC i loko o ka wai e pili ana i nā kumu he nui, me ke ʻano o ka hoʻololi ʻana (DS), ke kaumaha molekala, a me ka pH. ʻO ke degere o ka hoʻololi ʻana, ʻo ia ka helu o nā hui carboxymethyl no kēlā me kēia ʻāpana anhydroglucose (AGU) i loko o ke kaulahao polymer, a ua hōʻike pinepine ʻia ma ke ʻano he pākēneka. ʻO ke kiʻekiʻe o ka DS, ʻoi aku ka hydrophilic i ka CMC a ʻoi aku ka hoʻoheheʻe ʻia i ka wai. ʻO ke kaumaha molekala o ka CMC e pili pū ana i kona hoʻoheheʻe ʻana i ka wai; ʻoi aku ka hoʻoheheʻe ʻana o nā kaumaha molekala kiʻekiʻe. ʻO ka hope, hiki i ka pH o ka hopena ke hoʻopili i ka solubility o CMC; ʻoi aku ka nui o ka pH e hoʻonui i ka solubility o CMC.

Hoʻopili pū ʻia ka solubility o CMC i ka wai e ka loaʻa ʻana o nā mea ʻē aʻe i ka hopena. No ka laʻana, hiki i ka hele ʻana o nā electrolytes e like me ka sodium chloride ke hoʻemi i ka solubility o CMC i ka wai. Pēlā nō, hiki i ka hele ʻana o nā mea hoʻoheheʻe kūlohelohe e like me ka ethanol ke hoʻemi i ka solubility o CMC i ka wai.

Hiki ke hoʻoholo ʻia ka solubility o CMC i ka wai ma ke ana ʻana i ka neʻe ʻana o ka CMC i loko o kahi hopena me ka hoʻohana ʻana i kahi spectrophotometer. Hiki ke ho'oholo 'ia ka mana'o o CMC ma ke ana 'ana i ka absorbance o ka ho'onā ma ka nalu o 260 nm. Hoʻohālikelike ka absorbance i ka ʻike o CMC i ka hopena.

Ma keʻano laulā, hiki ke hoʻoheheʻe ʻia ka CMC i ka wai. Hoʻonui ka solubility o CMC i ka wai me ka piʻi ʻana o ke kiʻekiʻe o ka hoʻololi ʻana, ke kaumaha molekala, a me ka pH. Hoʻopili pū ʻia ka solubility o CMC i ka wai e ka loaʻa ʻana o nā mea ʻē aʻe i ka hopena.

Ka hopena

ʻO Carboxymethyl cellulose (CMC) kahi polymer wai-soluble i hoʻohana nui ʻia i nā ʻoihana like ʻole. ʻO ka solubility o CMC i loko o ka wai e pili ana i nā kumu he nui, me ke ʻano o ka hoʻololi ʻana, ke kaumaha molekala, a me ka pH. Ma keʻano laulā, hiki ke hoʻoheheʻe ʻia ʻo CMC i ka wai, a piʻi ka solubility me ka piʻi ʻana o ke kiʻekiʻe o ka hoʻololi ʻana, ke kaumaha molekala, a me ka pH. Hoʻopili pū ʻia ka solubility o CMC i ka wai e ka loaʻa ʻana o nā mea ʻē aʻe i ka hopena. Hiki ke ho'oholo 'ia ka mana'o o CMC ma ke ana 'ana i ka absorbance o ka ho'onā ma ka nalu o 260 nm.