HPMC VS HEC: 6 mau ʻokoʻa e pono ai ʻoe e ʻike!

Hoʻolauna:

ʻO ka Hydroxypropylmethylcellulose (HPMC) a me ka hydroxyethylcellulose (HEC) nā mea hoʻohui maʻamau i hoʻohana ʻia i ka meaʻai, nā mea hoʻonaninani a me nā ʻoihana lāʻau.Loaʻa i kēia mau cellulose derivatives nā noi ākea ma muli o ko lākou hoʻoheheʻe wai kūʻokoʻa, paʻa paʻa paʻa, a me ka hiki ke hana kiʻiʻoniʻoni maikaʻi loa.

1. Kemimi hale:

ʻO ka HPMC kahi polymer synthetic i loaʻa mai ka cellulose.Hana ʻia ia ma ka hoʻololi ʻana i ka cellulose kūlohelohe me ka hoʻohui ʻana i ka propylene oxide a me ka methyl chloride.ʻO HEC kekahi ʻano o ka cellulose derivative, akā hana ʻia ma ka hoʻopili ʻana i ka cellulose kūlohelohe me ka ethylene oxide a laila mālama ʻia me ka alkali.

2. Solubility:

Hiki ke hoʻoheheʻe ʻia ka HPMC a me ka HEC i ka wai anuanu.Akā ʻoi aku ka haʻahaʻa o ka solubility o HEC ma mua o HPMC.'O ia ho'i, 'oi aku ka maika'i o ka ho'opuehu 'ia 'ana o ka HPMC a hiki ke ho'ohana ma'alahi 'ia i loko o ka ho'okumu 'ana.

3. Viscosity:

Loaʻa i ka HPMC a me HEC nā hiʻohiʻona viscosity ʻokoʻa ma muli o kā lākou hana kemika.He kiʻekiʻe ke kaumaha o ka molecular HEC a ʻoi aku ka paʻakikī ma mua o HPMC, e hāʻawi iā ia i kahi viscosity kiʻekiʻe.No laila, hoʻohana pinepine ʻia ʻo HEC ma ke ʻano he mānoanoa i nā formulations e koi ana i ka viscosity kiʻekiʻe, ʻoiai hoʻohana ʻia ʻo HPMC i nā formulations e koi ana i ka viscosity haʻahaʻa.

4. Hana kiʻiʻoniʻoni:

Loaʻa iā HPMC a me HEC nā mana hana kiʻiʻoniʻoni maikaʻi loa.Akā ʻo ka HPMC he haʻahaʻa haʻahaʻa kiʻiʻoniʻoni, ʻo ia hoʻi, hiki ke hoʻohana ʻia i nā wela haʻahaʻa.ʻOi aku ka maikaʻi o ka HPMC no ka hoʻohana ʻana i nā ʻano hana e koi ai i nā manawa maloʻo wikiwiki a me ka hoʻopili maikaʻi ʻana.

5. Paʻa:

Paʻa ka HPMC a me HEC ma lalo o ka nui o nā kūlana pH a me ka mahana.Eia naʻe, ʻoi aku ka maʻalahi o ka HEC i nā loli pH ma mua o HPMC.'O ia ho'i, pono e ho'ohana 'ia ka HEC i nā hana me ka pae pH o 5 a hiki i ka 10, a'o ka HPMC e hiki ke ho'ohana 'ia ma kahi ākea pH.

6. Noi:

ʻO nā ʻano like ʻole o HPMC a me HEC e kūpono iā lākou no nā noi like ʻole.Hoʻohana maʻamau ʻia ʻo HEC ma ke ʻano he mānoanoa mānoanoa i nā mea hoʻonaninani a me nā lāʻau lapaʻau.Hoʻohana ʻia ʻo ia ma ke ʻano he binder a me ka mea hana kiʻiʻoniʻoni i loko o nā papa papa.Hoʻohana ʻia ʻo HPMC ma ke ʻano he mānoanoa, stabilizer, a me ka mea hana kiʻiʻoniʻoni i nā meaʻai, lāʻau lapaʻau, a me nā mea hoʻonaninani.Hoʻohana ʻia ia ma ke ʻano he gelling agent i kekahi mau meaʻai.

I ka hopena:

ʻO ka HPMC a me ka HEC nā mea hoʻopuka cellulose me nā waiwai kūʻokoʻa kūpono no nā noi like ʻole.ʻO ka hoʻomaopopo ʻana i ka ʻokoʻa ma waena o kēia mau mea hoʻohui ʻelua hiki ke kōkua iā ʻoe e koho i ka mea kūpono no kāu meaʻai.ʻO ka holoʻokoʻa, ʻo HPMC a me HEC nā mea hoʻohui palekana a maikaʻi hoʻi e hāʻawi ana i nā pono he nui i ka ʻoihana meaʻai, hoʻonaninani a me nā lāʻau lapaʻau.