ʻO ka Methylcellulose (MC) kahi mea polymer maʻamau i hoʻohui ʻia me ke kemika, kahi cellulose ether i hoʻololi ʻia i loaʻa ma ka methylating cellulose kūlohelohe. Ma muli o kāna mau waiwai kino a me ke kemika kūikawā, hoʻohana nui ʻia ia i ke kūkulu ʻana, nā meaʻai, nā lāʻau lapaʻau, nā mea hoʻonaninani, nā pepa a me nā uhi.
1. Hoʻokaʻawale ʻia ma ke degere o ka hoʻololi ʻana
ʻO ke degere o ka hoʻololi ʻana (DS) e pili ana i ka waiwai awelika o nā pūʻulu hydroxyl i pani ʻia e nā hui methyl ma kēlā me kēia ʻāpana glucose i ka methylcellulose. Aia 3 mau pūʻulu hydroxyl ma kēlā me kēia apo glucose o ka mole cellulose hiki ke pani ʻia e nā hui methyl. No laila, hiki ke hoʻololi i ke kiʻekiʻe o ka hoʻololi o ka methylcellulose mai ka 0 a hiki i ka 3. E like me ke kiʻekiʻe o ka hoʻololiʻana, hiki ke hoʻokaʻawaleʻia ka methylcellulose iʻelua mauʻano: ke kūlana kiʻekiʻe o ka hoʻololi a me ke kūlana haʻahaʻa o ka hoʻololi.
Kiʻekiʻe kiʻekiʻe o ka hoʻololi methylcellulose (DS> 1.5): ʻO kēia ʻano huahana he kiʻekiʻe kiʻekiʻe o ka methyl substitution, no laila ʻoi aku ka hydrophobic, he haʻahaʻa haʻahaʻa a me ke kūpaʻa wai maikaʻi. Hoʻohana pinepine ia i nā mea kūkulu hale, nā uhi a me nā manawa ʻē aʻe e koi ai i kahi pae o ka hydrophobicity.
Degere haʻahaʻa o ka methylcellulose hoʻololi (DS <1.5): Ma muli o ka liʻiliʻi o ka methyl substitution, ʻoi aku ka hydrophilic o kēia ʻano huahana, ʻoi aku ka maikaʻi o ka solubility a hiki ke hoʻoheheʻe ʻia i ka wai anuanu. Hoʻohana nui ʻia ka methylcellulose haʻahaʻa haʻahaʻa i nā ʻoihana meaʻai a me nā lāʻau lapaʻau e like me ka mānoanoa, emulsifier a me ka stabilizer.
2. Hoʻokaʻawale ma ka hoʻohana
E like me ka hoʻohana ʻana i ka methylcellulose ma nā ʻano like ʻole, hiki ke hoʻokaʻawale ʻia i ʻelua mau ʻāpana: ʻoihana methylcellulose a me ka meaʻai a me ka methylcellulose lāʻau.
ʻOihana methylcellulose: Hoʻohana nui ʻia i ka hana ʻana, ka uhi, ka hana pepa, ka seramika a me nā ʻoihana ʻē aʻe e like me ka mānoanoa, adhesive, kiʻiʻoniʻoni mua, ka mea mālama wai, a me nā mea ʻē aʻe. ka lōʻihi; i loko o ka ʻoihana uhi, hiki i ka methylcellulose ke hoʻonui i ka paʻa a me ka dispersibility o nā uhi.
ʻO ka meaʻai a me ka methylcellulose lāʻau lapaʻau: Ma muli o kāna mau mea ʻawaʻawa a maikaʻi ʻole, hoʻohana ʻia ka methylcellulose i mea hoʻohui i ka meaʻai a me ka lāʻau lapaʻau. I ka meaʻai, ʻo ka methylcellulose kahi mānoanoa maʻamau a me ka emulsifier hiki ke hoʻopaʻa i ke ʻano meaʻai a pale i ka stratification a i ʻole ka hoʻokaʻawale ʻana; i ka lāʻau lapaʻau, hiki ke hoʻohana ʻia ka methylcellulose e like me ka pūpū capsule, kahi mea lawe lāʻau lapaʻau, a loaʻa nō hoʻi ka hana o nā lāʻau hoʻokuʻu hoʻomau. ʻO kona ʻai ʻana a me ka palekana e kaulana loa ka methylcellulose i kēia mau ʻāina ʻelua.
3. Hoʻokaʻawale ʻia e ka solubility
Hoʻokaʻawale nui ʻia ʻo Methylcellulose i ʻelua mau ʻāpana e pili ana i ka solubility: ʻano hoʻoheheʻe wai anuanu a me nā ʻano mea hiki ke hoʻoheheʻe ʻia.
ʻO ka methylcellulose hiki ke hoʻoheheʻe ʻia i ka wai anuanu: Hiki ke hoʻoheheʻe ʻia kēia ʻano methylcellulose i loko o ka wai anuanu e hana ai i kahi hopena ʻālohilohi, viscous ma hope o ka hemo ʻana. Hoʻohana pinepine ʻia i nā ʻoihana meaʻai a me nā lāʻau lapaʻau e like me ka mānoanoa a i ʻole nā kiʻiʻoniʻoni mua. Hoʻemi ka solubility o kēia ʻano methylcellulose me ka piʻi ʻana o ka mahana, no laila hiki ke hoʻohana ʻia kēia hiʻohiʻona no ka hoʻokele kūkulu ʻana ke hoʻohana ʻia i ka ʻoihana kūkulu.
ʻO ka methylcellulose hiki ke hoʻoheheʻe ʻia: Hiki ke hoʻoheheʻe ʻia kēia ʻano methylcellulose i loko o nā mea hoʻoheheʻe organik a hoʻohana pinepine ʻia i nā pena, nā uhi a me nā māla ʻoihana ʻē aʻe e koi ana i ka media phase organic. Ma muli o kāna mau waiwai hana kiʻiʻoniʻoni maikaʻi a me ke kūpaʻa kemika, kūpono ia no ka hoʻohana ʻana ma lalo o nā kūlana ʻoihana paʻakikī.
4. Hoʻokaʻawale ʻia e ke kaumaha molekala (viscosity)
He hopena koʻikoʻi ka paona molekala o ka methylcellulose i kona mau waiwai kino, ʻoi aku ka nui o ka hana viscosity i ka hopena. Wahi a ke kaumaha mole, hiki ke hoʻokaʻawale ʻia ka methylcellulose i ke ʻano viscosity haʻahaʻa a me ke ʻano viscosity kiʻekiʻe.
ʻO ka methylcellulose viscosity haʻahaʻa: He liʻiliʻi ke kaumaha molekala a he haʻahaʻa ka viscosity solution. Hoʻohana pinepine ʻia i ka meaʻai, ka lāʻau lapaʻau a me nā mea hoʻonaninani, ka mea nui no ka emulsification, hoʻokuʻu a me ka mānoanoa. Hiki i ka methylcellulose haʻahaʻa haʻahaʻa ke mālama i ka wai maikaʻi a me ke kūlike, a kūpono i nā noi e koi ana i nā haʻina haʻahaʻa haʻahaʻa.
ʻO ka methylcellulose kiʻekiʻe-viscosity: He paona molekala nui kona a hana i kahi hopena kiʻekiʻe-viscosity ma hope o ka hemo ʻana. Hoʻohana pinepine ʻia i nā mea kūkulu hale, nā uhi a me nā mea hoʻopili ʻoihana. Hiki i ka methylcellulose kiʻekiʻe kiʻekiʻe ke hoʻonui i ka ikaika mechanical, ke kūpaʻa a me ka hoʻopili ʻana o ka hopena, no laila e hoʻohana nui ʻia i nā mea e koi ai i ka ikaika kiʻekiʻe a me ke kūpaʻa kiʻekiʻe.
5. Hoʻokaʻawale ʻia ma ke ʻano o ka hoʻololi kemika
ʻO ka Methylcellulose kahi mea hoʻololi kemika i hoʻololi ʻia i ka cellulose derivative. E like me ke ʻano hoʻololi a me ke degere, hiki ke hoʻokaʻawale ʻia i hoʻokahi methyl cellulose a me ka cellulose hoʻololi ʻia.
Hoʻokahi methyl cellulose: pili i nā cellulose ethers i hoʻololi wale ʻia i ka methyl. ʻO kēia ʻano huahana he ʻano paʻa kino a me nā waiwai kemika, a ʻoi aku ka maikaʻi o kona solubility, mānoanoa a me nā waiwai hana kiʻiʻoniʻoni.
ʻO ka cellulose i hoʻololi ʻia i hui pū ʻia: Ma waho aʻe o ka methylation, ua mālama ʻia me ke kemika, e like me ka hydroxypropylation, ethylation, a me nā mea ʻē aʻe, e hana i kahi huahana i hoʻololi ʻia. No ka laʻana, hydroxypropyl methylcellulose (HPMC) a me carboxymethyl cellulose (CMC). ʻOi aku ka maikaʻi o kēia mau celluloses i hoʻololi ʻia i ka wai, ka pale wela a me ke kūpaʻa, a hiki ke hoʻololi i kahi ākea o nā pono ʻoihana.
6. Hoʻokaʻawale ʻia e ka ʻoihana noi
ʻO ka hoʻohana ākea o ka methylcellulose hiki ke hoʻokaʻawale ʻia e like me kāna mau hiʻohiʻona noi i nā ʻoihana like ʻole.
ʻO ka ʻoihana hana methylcellulose: Hoʻohana nui ʻia i nā mea sima a me nā mea gypsum e like me ka mālama wai a me ka mānoanoa. Hiki iā ia ke hoʻomaikaʻi i ka hana o nā mea kūkulu hale, pale i ka nalowale o ka wai, a hoʻonui i ka ikaika mechanical o nā huahana i hoʻopau ʻia.
ʻO ka ʻoihana meaʻai methylcellulose: Ma ke ʻano he emulsifier, mānoanoa a me ka stabilizer i ka hana ʻai. Hiki iā ia ke pale i ka nalowale o ka wai, hoʻomaikaʻi i ka ʻono a me ke ʻano o ka meaʻai, a hoʻonui i ke ola o ka meaʻai.
ʻO ka methylcellulose ʻoihana lāʻau lapaʻau: Ma ke ʻano he mea hoʻopaʻa papa a i ʻole kahi mea hoʻokuʻu hoʻomau no nā lāʻau lapaʻau. Hiki ke hoʻohana pū ʻia ka Methylcellulose i ka hoʻomākaukau ʻana i nā lāʻau lapaʻau ma ke ʻano he mea lawe lāʻau palekana a maikaʻi.
ʻO ka methylcellulose ʻoihana hoʻonaninani: I nā huahana mālama ʻili a me nā mea hoʻonaninani, hoʻohana ʻia ka methylcellulose ma ke ʻano he mānoanoa, emulsifier a me ka moisturizer e kōkua i nā huahana e hana i kahi ʻano maʻalahi a maʻalahi i ka wā e hoʻolōʻihi i ka hopena moisturizing.
I ka hōʻuluʻulu ʻana, nui nā ala e hoʻokaʻawale ai i ka methylcellulose, hiki ke hoʻokaʻawale ʻia e like me kona ʻano hana kemika, a i ʻole e like me kāna mau noi a me nā waiwai solubility. ʻO kēia mau ʻano hoʻokaʻawale ʻokoʻa e kōkua iā mākou e hoʻomaopopo maikaʻi i nā ʻano a me nā hana o ka methylcellulose, a hāʻawi pū i kahi kumu noʻonoʻo no kāna noi ʻana ma nā kahua like ʻole.
Ka manawa hoʻouna: Oct-23-2024