He aha ka viscosity o ka hydroxyethyl cellulose?

ʻO ka Hydroxyethylcellulose (HEC) he polymer nonionic, wai-soluble i loaʻa mai ka cellulose. Ma muli o kāna mau waiwai rheological kūʻokoʻa, hoʻohana maʻamau ia i nā ʻoihana like ʻole me nā lāʻau lapaʻau, nā mea hoʻonaninani a me ke kūkulu ʻana. ʻO kekahi o nā waiwai koʻikoʻi o ka hydroxyethyl cellulose ʻo kona viscosity, kahi mea koʻikoʻi i ka hoʻoholo ʻana i kāna hana ma nā noi like ʻole.

ʻO ka viscosity kahi ana o ke kū ʻana o ka wai e kahe. I ka hihia o ka hydroxyethylcellulose, ua hoʻopili ʻia kona viscosity e kekahi mau mea, e like me ka neʻe ʻana, ka mahana a me ka helu shear. He mea koʻikoʻi ka hoʻomaopopo ʻana i kēia mau mea i ka hoʻohana ʻana i ka HEC i nā ʻano hana like ʻole.

ʻO ka viscosity o ka hydroxyethylcellulose e hilinaʻi nui ʻia i kona ʻike ʻana i ka hopena. Ma keʻano laulā, i ka piʻi ʻana o ka manaʻo HEC, piʻi pū kona viscosity. He ʻano maʻamau kēia ʻano o nā hoʻonā polymer a wehewehe pinepine ʻia e kahi kumu hoʻohālike kānāwai mana e pili ana i ka viscosity i ka noʻonoʻo.

He hopena koʻikoʻi ka mahana i ka viscosity o nā solutions hydroxyethyl cellulose. I ka nui o nā hihia, emi iho ka viscosity me ka piʻi ʻana o ka mahana. He mea koʻikoʻi kēia ʻike wela no nā noi kahi e pono ai nā mea e hoʻololi i ka viscosity, e like me ka wā o ka hana ʻana a i ʻole ke hoʻohana ʻia i nā ʻāpana like ʻole.

ʻO ka nui o ka shear kekahi mea nui e pili ana i ka viscosity o ka hydroxyethyl cellulose. ʻO ka helu shear e pili ana i ka neʻe ʻana o nā papa wai e pili ana i kekahi i kekahi. Hōʻike maʻamau ka viscosity o nā hāʻina HEC i ke ʻano shear thinning, ʻo ia hoʻi ke piʻi aʻe ka nui o ka shear rate, emi ka viscosity. ʻOi aku ka maikaʻi o kēia waiwai i nā noi e like me nā uhi a me nā adhesives kahi e pono ai ka maʻalahi o ka noi.

ʻO ke kaumaha mole o ka hydroxyethyl cellulose e hoʻoholo i kona viscosity. ʻOi aku ka nui o ke kaumaha o ka molekala HEC e loaʻa i nā viscosities kiʻekiʻe ma kahi ʻike i hāʻawi ʻia. He mea nui kēia ʻano i ke koho ʻana i kahi māka kikoʻī o HEC no kahi noi kikoʻī.

I loko o nā ʻano lāʻau lapaʻau, hoʻohana pinepine ʻia ka hydroxyethylcellulose ma ke ʻano he mea mānoanoa i nā ʻano o ka waha a me ka topical dosage forms. ʻO ka viscosity o HEC e hōʻoia i ka hoʻokuʻu ʻia ʻana o nā ʻāpana a hāʻawi i ka kūlike i koi ʻia no ka maʻalahi o ka dosing. Eia kekahi, hiki i ke ʻano shear-thinning o HEC ke hoʻomaikaʻi i ka hoʻolaha ʻana o nā ʻano kumuhana.

I ka ʻoihana hoʻonaninani, hoʻohana ʻia ka hydroxyethylcellulose i nā ʻano huahana like ʻole, me nā shampoos, lotions a me nā ʻaila. ʻO kāna mau waiwai hoʻololi viscosity e kōkua i ka hoʻomaikaʻi ʻana i ke kūpaʻa a me ke ʻano o kēia mau ʻano, e hoʻonui ai i ka ʻike mea hoʻohana holoʻokoʻa.

I ka ʻoihana kūkulu, hoʻohana pinepine ʻia ka hydroxyethylcellulose ma ke ʻano he mānoanoa i nā huahana sima. ʻO ka viscosity o HEC e kōkua i ka mālama ʻana i ka kahe a me ka hiki ke kaʻina o ka mea i ka wā o ka noi. He mea koʻikoʻi kēia no nā noi e like me nā tile adhesives a me nā grouts.

ʻO ka viscosity o ka hydroxyethyl cellulose kahi mea nui e pili ana i kāna hana ma nā noi like ʻole. ʻO ka hoʻomaopopo ʻana i nā mea e hoʻohuli ai i ka viscosity, e like me ka neʻe ʻana, ka mahana, a me ka shear rate, he mea koʻikoʻi i ka hoʻohana ʻana i ka HEC i nā ʻoihana like ʻole. Ma keʻano he polymer versatile, hoʻomau ka hydroxyethyl cellulose i ka hana nui i ka hoʻomaikaʻi ʻana i ka hana o nā huahana like ʻole ma nā ʻoihana like ʻole.