ʻOkoʻa ma waena o EHEC a me HPMC

ʻO EHEC a me HPMC ʻelua mau ʻano polymers i hoʻohana pinepine ʻia me nā ʻano kemika a me nā waiwai. Kū ʻo EHEC no ka ethyl hydroxyethyl cellulose, aʻo HPMC ke kū nei no ka hydroxypropyl methylcellulose. Ma kēia ʻatikala, e kūkākūkā mākou i nā ʻokoʻa ma waena o EHEC a me HPMC e pili ana i kā lākou hana kemika, waiwai, hoʻohana, a me ka palekana.

1. Hoʻolālā Kimia

ʻO EHEC kahi polymer hiki ke hoʻoheheʻe ʻia i ka wai i loaʻa mai ka cellulose. He ether cellulose i hoʻololi ʻia i loaʻa nā pūʻulu ethyl a me hydroxyethyl i hoʻopili ʻia i ka iwi kuamoʻo cellulose. ʻO ke degere o ka hoʻololi ʻana (DS) o EHEC e pili ana i ka helu o nā hui ethyl a me hydroxyethyl i loaʻa i kēlā me kēia anhydroglucose unit (AGU) o ka iwi kuamoʻo cellulose. Hiki ke DS o EHEC mai ka 0.2 a hiki i ka 2.5, me nā koina DS kiʻekiʻe e hōʻike ana i kahi kiʻekiʻe o ka hoʻololi.

ʻO HPMC, ma ka ʻaoʻao ʻē aʻe, he polymer hiki ke hoʻoheheʻe ʻia i ka wai i loaʻa mai ka cellulose. He cellulose ether i hoʻololi ʻia i loaʻa nā hui hydroxypropyl a me methyl i pili i ka iwi kuamoʻo cellulose. ʻO ke degere o ka hoʻololi ʻana o HPMC e pili ana i ka helu o nā hui hydroxypropyl a me methyl i loaʻa i kēlā me kēia AGU o ka iwi kuamoʻo cellulose. Hiki ke DS o HPMC mai ka 0.1 a hiki i ka 3.0, me nā koina DS kiʻekiʻe e hōʻike ana i kahi kiʻekiʻe o ka hoʻololi.

2. Waiwai

Loaʻa iā EHEC a me HPMC nā waiwai like ʻole e kūpono ai no nā noi like ʻole. Aia kekahi o nā waiwai koʻikoʻi o EHEC a me HPMC ma lalo nei:

a. Solubility: ʻAʻole hiki ke hoʻoheheʻe ʻia ka EHEC i ka wai ma mua o ka HPMC, a ke emi nei kona solubility i ka piʻi ʻana o ke degere o ka hoʻololi. ʻO HPMC, ma kekahi ʻaoʻao, hiki ke hoʻoheheʻe ʻia i ka wai.

b. Rheology: He mea pseudoplastic ka EHEC, ʻo ia hoʻi, hōʻike ia i ke ʻano ʻoki ʻoki. ʻO ia ke ʻano o ka emi ʻana o ka viscosity o EHEC i ka piʻi ʻana o ka shear rate. ʻO HPMC, ma ka ʻaoʻao ʻē aʻe, he mea Newtonian, ʻo ia hoʻi, e mau ana kona viscosity me ka nānā ʻole i ka nui o ka shear rate.

c. Nā waiwai hana kiʻiʻoniʻoni: Loaʻa i ka EHEC nā waiwai hana kiʻiʻoniʻoni maikaʻi, i kūpono ia no ka hoʻohana ʻana i nā uhi a me nā kiʻiʻoniʻoni. Loaʻa i ka HPMC nā waiwai hana kiʻiʻoniʻoni, akā hiki i nā kiʻiʻoniʻoni ke maʻalahi a hiki i ka pohā.

d. Paʻa: Paʻa ka EHEC ma luna o kahi ākea o ka pH a me nā kūlana wela. Paʻa pū ka HPMC ma kahi ākea pH ākea, akā hiki ke hoʻopili ʻia kona kūpaʻa e nā wela kiʻekiʻe.

3. Hoʻohana

Hoʻohana ʻia ʻo EHEC a me HPMC ma kahi ākea o nā noi i ka ʻoihana meaʻai, lāʻau lapaʻau, a me nā ʻoihana mālama pilikino. Aia kekahi o nā hoʻohana nui o EHEC a me HPMC ma lalo nei:

a. ʻOihana meaʻai: Hoʻohana mau ʻia ʻo EHEC ma ke ʻano he mānoanoa, stabilizer, a me ka emulsifier i nā huahana meaʻai e like me nā kīʻaha, nā lole, a me nā meaʻai i kālua ʻia. Hoʻohana ʻia ʻo HPMC ma ke ʻano he mānoanoa a me ka stabilizer i nā huahana meaʻai, akā ʻoi aku ka maʻamau o ka hoʻohana ʻana ma ke ʻano he mea uhi no nā huahana confectionery e like me nā candies gummy a me nā kokoleka.

b. ʻOihana lāʻau lapaʻau: Hoʻohana ʻia ʻo EHEC ma ke ʻano he mea hoʻopaʻa, disintegrant, a me ka mea hoʻopili papa papa i loko o nā hoʻoponopono lāʻau. Hoʻohana pū ʻia ʻo HPMC ma ke ʻano he mea hoʻopili, disintegrant, a me ka mea hoʻopili papa i loko o nā ʻano lāʻau lapaʻau, akā hoʻohana maʻamau ia ma ke ʻano he mea hoʻokuʻu mau.

4. Palekana

Manaʻo ʻia ʻo EHEC a me HPMC he palekana no ka hoʻohana ʻana i nā meaʻai a me nā noi lāʻau. Eia naʻe, e like me nā mea kemika, aia kekahi mau pilikia e pili ana i kā lākou hoʻohana.