Hec hydroxyethyl cellulose mānoanoa

ʻO ka Hydroxyethyl cellulose (HEC) kahi derivative nonionic cellulose i hoʻohana nui ʻia i nā ʻoihana like ʻole ma muli o kona mānoanoa maikaʻi loa, hoʻokuʻu, a me nā waiwai emulsifying. He polymer hiki ke hoʻoheheʻe ʻia ka HEC i ka wai anuanu e hana ai i nā ʻoluʻolu a me ke kala ʻole. Hoʻohana maʻamau ʻia ʻo HEC ma ke ʻano he mānoanoa i nā ʻano noiʻi he nui, me ka uhi ʻana, nā adhesives, nā huahana mālama pilikino, a me nā lāʻau lapaʻau.

Hana ʻia ʻo HEC ma o ka hoʻololi ʻana i ka cellulose maoli, he polymer i loaʻa nā ʻāpana glucose i hoʻopili pū ʻia e nā paʻa glycosidic β(1→4). ʻO ka hoʻololi ʻana o ka cellulose e pili ana i ka hoʻokomo ʻana i nā pūʻulu hydroxyethyl (-CH2CH2OH) i nā ʻāpana anhydroglucose o ka iwi kuamoʻo cellulose. ʻO kēia hoʻololi ka hopena i kahi polymer hiki ke hana i nā paʻa hydrogen me nā mole wai, e alakaʻi ana i ka hoʻokumu ʻana i kahi hopena viscous.

He mānoanoa maikaʻi ʻo HEC ma muli o kona hiki ke hana i kahi ʻano gel-like i ka wā e hoʻohui ʻia ai i kahi hopena. Hiki i nā pūʻulu hydroxyethyl ma ka mole HEC ke launa pū me nā mole wai, e hopena i ka hoʻokumu ʻana i nā paʻa hydrogen. ʻO nā paʻa hydrogen ma waena o ka mole HEC a me nā molekole wai e hoʻomāmā a hoʻonui i ka nui o ka mole HEC. I ka hoʻonui ʻana o ka molela HEC, hoʻokumu ia i kahi ʻano ʻoihana ʻekolu-dimensional e pahele i ka wai a me nā mea hoʻoheheʻe ʻē aʻe, e hopena i ka piʻi ʻana o ka viscosity o ka hopena.

Hoʻopili ʻia ka mana mānoanoa o HEC e nā ʻano like ʻole, me ka ʻike ʻana o HEC i ka hopena, ka mahana, a me ka pH. ʻO nā kiʻekiʻe kiʻekiʻe o HEC i ka hopena e alakaʻi i ka piʻi nui o ka viscosity. Eia nō naʻe, ʻo ka hoʻonui ʻana i ka manaʻo o HEC ma mua o kahi kikoʻī hiki ke alakaʻi i ka emi ʻana o ka viscosity ma muli o ka hoʻokumu ʻana o nā aggregates. Hoʻopili ka mahana i ka hiki ke mānoanoa o HEC, me nā mahana kiʻekiʻe e alakaʻi ana i ka emi ʻana o ka viscosity. Hiki i ka pH o ka hopena ke hoʻopili i ka hiki ke mānoanoa o HEC, me nā koina pH kiʻekiʻe e alakaʻi ana i ka emi ʻana o ka viscosity.

Hoʻohana maʻamau ʻia ʻo HEC ma ke ʻano he mānoanoa i nā noi like ʻole, me nā uhi a me nā pena. I nā uhi, ua hoʻohui ʻia ʻo HEC i ka hoʻolālā e hoʻomaikaʻi i nā waiwai rheological o ka uhi. ʻO nā waiwai rheological o kahi uhi e pili ana i kona hiki ke kahe a pae ma luna o kahi ʻili. Hiki i ka HEC ke hoʻomaikaʻi i ke kahe a me ka pae ʻana i nā waiwai o kahi uhi ma o ka hoʻonui ʻana i kona viscosity a me ka hoʻohaʻahaʻa ʻana i kona ʻano sagging. Hiki i ka HEC ke hoʻomaikaʻi i ke kūpaʻa o ka uhi ʻana ma o ka pale ʻana i ka hoʻonā ʻana o nā puaʻa a me nā mea paʻa ʻē aʻe.

I nā adhesives, hoʻohana ʻia ʻo HEC ma ke ʻano he mānoanoa e hoʻomaikaʻi i ka viscosity a me ka tackiness o ka adhesive. Pono ka viscosity o ka adhesive no kona hiki ke pili i ka ʻili a noho ma kahi. Hiki i ka HEC ke hoʻomaikaʻi i ka viscosity o ka mea hoʻopili a pale iā ia mai ka kulu a holo ʻana paha. Hiki i ka HEC ke hoʻomaikaʻi i ka paʻakikī o ka mea hoʻopili, e ʻae iā ia e pili pono i kahi ʻili.

I nā huahana mālama pilikino, hoʻohana ʻia ʻo HEC ma ke ʻano he mānoanoa a me ka stabilizer. Hoʻohana pinepine ʻia ʻo HEC i nā shampoos, conditioners, a me nā holoi kino e hoʻomaikaʻi i ko lākou viscosity a me ke ʻano. Hiki i ka HEC ke hoʻomaikaʻi i ke kūpaʻa o kēia mau huahana ma ka pale ʻana i ka hoʻokaʻawale ʻana a me ka hoʻoponopono ʻana i nā mea paʻa.

I nā lāʻau lapaʻau, hoʻohana ʻia ʻo HEC ma ke ʻano he mānoanoa a me ka mea hoʻomaha. Hoʻohana mau ʻia ʻo HEC i nā hoʻokuʻu waha e hoʻokuʻu i nā lāʻau hiki ʻole ke hoʻoheheʻe ʻia i loko o kahi ʻano wai. Hiki ke hoʻohana ʻia ʻo HEC ma ke ʻano he mānoanoa i nā creams topical a me nā gels e hoʻomaikaʻi i ko lākou viscosity a me ke ʻano.

I ka hopena, he polymer hiki ke hoʻoheheʻe wai ka HEC i hoʻohana nui ʻia ma ke ʻano he mānoanoa i nā ʻoihana like ʻole ma muli o kona ʻano mānoanoa maikaʻi loa, hoʻokuʻu, a me nā waiwai emulsifying.