ʻO Hydroxyethyl Cellulose (HEC) he polymer non-ionic wai-soluble i hoʻohana nui ʻia i nā uhi, nā mea hoʻonaninani, nā lāʻau lapaʻau, nā meaʻai, ka hana pepa, ka ʻaila ʻaila a me nā ʻoihana ʻē aʻe. He pūhui cellulose ether i loaʻa ma ka etherification o cellulose, kahi e hoʻololi ai ka hydroxyethyl i kahi hapa o nā pūʻulu hydroxyl o cellulose. ʻO nā waiwai kino a me nā kemika o ka hydroxyethyl cellulose e lilo ia i mea nui o nā mānoanoa, gelling agents, emulsifiers a me stabilizers.
Ka helu hoʻolapalapa o ka hydroxyethyl cellulose
ʻO ka Hydroxyethyl cellulose he polymer molecular kiʻekiʻe me ke kaumaha molekala nui, a ʻaʻole maʻalahi kona wahi paila e like me ka mea o nā pūhui molekala liʻiliʻi. Ma nā hoʻohana pono, ʻaʻohe wahi hoʻolapalapa akaka nā mea molekala kiʻekiʻe e like me ka hydroxyethyl cellulose. ʻO ke kumu, e hoʻoheheʻe ʻia ia mau mea i ka wā e hoʻomehana ai, ma mua o ka hoʻololi pololei ʻana mai ka wai a i ke kinoea ma o ka hoʻololi ʻana e like me nā mea molekala liʻiliʻi maʻamau. No laila, ʻaʻole pili ka manaʻo o "kahi paila" o ka hydroxyethyl cellulose.
ʻO ka mea maʻamau, i ka wā e wela ai ka hydroxyethyl cellulose i ka wela kiʻekiʻe, e hoʻoheheʻe mua ia i ka wai a i ʻole ka mea hoʻoheheʻe organik e hana i kahi colloidal solution, a laila ma kahi kiʻekiʻe o ka wela, e hoʻomaka ke kaulahao polymer e haki a hoʻoheheʻe ʻia i ka wela, e hoʻokuʻu ana i nā molekole liʻiliʻi e like me ka wai, carbon dioxide a me nā mea ʻē aʻe me ka ʻole o ke kaʻina hana paila. No laila, hydroxyethyl cellulose ʻaʻohe wahi hoʻolapalapa akaka, akā he mahana decomposition, ʻokoʻa me kona kaumaha molekala a me ke degere o ka hoʻololi ʻana. ʻO ka ʻōlelo maʻamau, ʻoi aku ka maʻamau o ka wela decomposition thermal o hydroxyethyl cellulose ma luna o 200°C.
ʻO ke kūpaʻa wela o ka hydroxyethyl cellulose
Hiki i ka Hydroxyethyl cellulose ke kūpaʻa kemika maikaʻi ma ka lumi wela, hiki ke kū i kahi ʻano o ka waika a me ka alkali, a loaʻa kekahi ʻano wela. Eia nō naʻe, ke kiʻekiʻe loa ka mahana, ʻoi aku ka nui o ka loaʻa ʻole o nā solvents a i ʻole nā stabilizers ʻē aʻe, e hoʻomaka nā kaulahao polymer e haki ma muli o ka hana o ka wela. ʻAʻole hele pū ʻia kēia kaʻina hoʻoheheʻe wela me ka hoʻolapalapa ʻana, akā, ʻo ka haki ʻana o ke kaulahao a me ka hopena dehydration, e hoʻokuʻu ana i nā mea maʻemaʻe a waiho i nā huahana carbonized.
I nā noi ʻoihana, i mea e pale aku ai i ka decomposition i hoʻokumu ʻia e ka wela kiʻekiʻe, ʻaʻole ʻike pinepine ʻia ka hydroxyethyl cellulose i kahi kaiapuni ma mua o kona wela decomposition. ʻOiai i nā noi wela kiʻekiʻe (e like me ka hoʻohana ʻana i nā wai hoʻoheheʻe ʻaila), hoʻohana pinepine ʻia ka hydroxyethyl cellulose i hui pū me nā mea ʻē aʻe e hoʻonui ai i kona kūpaʻa wela.
Hoʻohana i ka hydroxyethyl cellulose
ʻOiai ʻaʻohe wahi paila o ka hydroxyethyl cellulose, ʻo kona solubility a me nā waiwai mānoanoa e hoʻohana nui ʻia i nā ʻoihana he nui. ʻo kahi laʻana:
ʻOihana uhi: hiki ke hoʻohana ʻia ka hydroxyethyl cellulose ma ke ʻano he mānoanoa e kōkua i ka hoʻoponopono ʻana i ka rheology o ka uhi, pale i ka ua a hoʻomaikaʻi i ka pae a me ka paʻa o ka uhi.
ʻO nā mea hoʻonaninani a me nā kinikona i kēlā me kēia lā: He mea nui ia i nā mea holoi he nui, nā huahana mālama ʻili, nā shampoos a me nā niho niho, hiki ke hāʻawi i ka huahana i ka viscosity kūpono, moisturizing a me ke kūpaʻa.
ʻoihana lāʻau lapaʻau: I ka hoʻomākaukau lāʻau lapaʻau, hoʻohana pinepine ʻia ka hydroxyethyl cellulose i ka hana ʻana i nā papa hoʻokuʻu hoʻomau a me nā uhi e hoʻomalu i ka hoʻokuʻu ʻana o nā lāʻau lapaʻau.
ʻOihana meaʻai: Ma ke ʻano he mānoanoa, stabilizer a me ka emulsifier, hoʻohana pū ʻia ka hydroxyethyl cellulose i ka meaʻai, ʻoi aku ka ice cream, jelly a me nā meaʻai.
ʻO ka hoʻoheheʻe ʻana i ka aila: I ka ʻaila ʻaila, hydroxyethyl cellulose kahi mea nui o ka wai wili, hiki ke hoʻonui i ka viscosity o ka wai, hoʻopaʻa i ka pā punawai a hōʻemi i ka nalowale o ka lepo.
Ma ke ʻano he mea polymer, ʻaʻohe wahi hoʻolapalapa akaka ka hydroxyethyl cellulose no ka mea e hoʻoheheʻe ʻia ma nā wela kiʻekiʻe ma mua o ke ʻano o ka paila maʻamau. ʻOi aku ka maʻamau o kona mahana decomposition wela ma luna o 200°C, ma muli o kona kaumaha molekala a me ke degere o ka hoʻololi ʻana. Eia nō naʻe, hoʻohana nui ʻia ka hydroxyethyl cellulose i nā uhi, nā mea hoʻonaninani, nā lāʻau lapaʻau, nā meaʻai a me ka ʻaila ma muli o kāna mānoanoa maikaʻi loa, gelling, emulsifying a me ka hoʻopaʻa ʻana i nā waiwai. Ma kēia mau noi, ʻaʻole maʻamau ka ʻike ʻana i nā wela kiʻekiʻe kiʻekiʻe e hōʻoia i kāna hana a paʻa.
Ka manawa hoʻouna: Oct-23-2024