He aha ka ʻokoʻa ma waena o ka hydroxyethyl cellulose a me ka hydroxypropyl cellulose?

ʻO ka Hydroxyethylcellulose (HEC) a me ka hydroxypropylcellulose (HPC) nā huaʻelua o ka cellulose, he polymer maoli i loaʻa i nā paia o nā mea kanu. Hoʻohana nui ʻia kēia mau cellulose derivatives i nā ʻoihana like ʻole ma muli o kā lākou mau waiwai kūʻokoʻa.

Hoʻolālā kemika:

Hydroxyethylcellulose (HEC):

Hoʻopili ʻia ʻo HEC ma ka hana ʻana i ka cellulose me ka ethylene oxide.
I ka hana kemika o HEC, hoʻokomo ʻia nā hui hydroxyethyl i loko o ka iwi kuamoʻo cellulose.
Hōʻike ka degere o ka hoʻololi ʻana (DS) i ka helu awelika o nā pūʻulu hydroxyethyl i kēlā me kēia ʻāpana glucose i ke kaulahao cellulose.

Hydroxypropylcellulose (HPC):

Hana ʻia ka HPC ma ka mālama ʻana i ka cellulose me ka propylene oxide.
I ka wā o ka synthesis, hoʻohui ʻia nā pūʻulu hydroxypropyl i ka hale cellulose.
E like me HEC, hoʻohana ʻia ke degere o ka hoʻololi ʻana no ka helu ʻana i ka nui o ka hoʻololi ʻana o ka hydroxypropyl i ka mole cellulose.

hiʻona:

Hydroxyethylcellulose (HEC):

ʻIke ʻia ʻo HEC no kāna mau mana paʻa wai maikaʻi loa, e hana ana ia i mea hoʻohui maʻamau i nā ʻano hana mānoanoa a me nā gelling.
Hoʻokumu ia i ka hopena maʻemaʻe i loko o ka wai a hōʻike i ka ʻano pseudoplastic, ʻo ia hoʻi, e liʻiliʻi ka liʻiliʻi ma lalo o ke koʻikoʻi shear.
Hoʻohana maʻamau ʻia ʻo HEC i ka hoʻokumu ʻana i nā huahana mālama pilikino, nā lāʻau lapaʻau, a ma ke ʻano he mānoanoa i nā uhi wai.

Hydroxypropylcellulose (HPC):

Loaʻa iā HPC ka hiki ke hoʻoheheʻe wai a me nā waiwai hana kiʻiʻoniʻoni.
Loaʻa iā ia kahi ākea ākea o ka hoʻohālikelike ʻana me nā solvents like ʻole ma mua o HEC.
Hoʻohana pinepine ʻia ʻo HPC ma ke ʻano he mea hoʻopaʻa i loko o nā ʻano lāʻau lapaʻau, nā huahana mālama waha, a me ka hana papa.

palapala noi:

Hydroxyethylcellulose (HEC):

Hoʻohana nui ʻia ia i nā mea hoʻonaninani a me nā ʻoihana mālama pilikino ma ke ʻano he mānoanoa i nā shampoos, lotions a me nā ʻaila.
Hoʻohana ʻia ma ke ʻano he stabilizer a me ka regulator viscosity i loko o nā ʻano lāʻau lapaʻau.
Hoʻohana ʻia i ka hana ʻana i nā pena wai a me nā uhi.

Hydroxypropylcellulose (HPC):

Hoʻohana maʻamau ʻia i nā noi lāʻau lapaʻau, ʻoi aku ma ke ʻano he mea hoʻopaʻa i ka hana ʻana i nā papa.
Hoʻohana ʻia ia i nā huahana mālama waha e like me ka toothpaste no kāna mau waiwai mānoanoa.
Hiki ke hoʻohana ʻia i nā ʻōnaehana lawe lāʻau hoʻokuʻu ʻia.

ʻOiai ʻo ka hydroxyethyl cellulose (HEC) a me ka hydroxypropyl cellulose (HPC) kaʻana like ʻana ma muli o ko lākou kumu cellulose, ʻokoʻa lākou i ke ʻano kemika, nā waiwai, a me nā noi. Hoʻohana pinepine ʻia ʻo HEC i ka mālama pilikino a me ka hoʻopili ʻana no ka mālama ʻana i ka wai a me ka hiki ke mānoanoa, ʻoiai ʻo HPC e hoʻohana nui ʻia i ka ʻoihana lāʻau lapaʻau, ʻoi loa i ka hana papa a me nā ʻōnaehana hoʻokuʻu lāʻau. He mea koʻikoʻi ka hoʻomaopopo ʻana i kēia mau ʻokoʻa no ke koho ʻana i nā derivative cellulose kūpono no nā noi ʻoihana kūikawā.