He aha ka hydroxyethyl cellulose?

ʻO ka Hydroxyethyl cellulose (HEC) he polymer hiki ke hoʻoheheʻe ʻia i ka wai i loaʻa mai ka cellulose, kahi polysaccharide kūlohelohe i loaʻa i nā mea kanu. Hoʻokumu ʻia ʻo HEC ma o ka hoʻololi ʻana o ka cellulose e ka hoʻohui ʻana o nā pūʻulu hydroxyethyl, i hoʻopili ʻia i nā ʻāpana glucose o ka mole cellulose. Hoʻololi kēia hoʻololi i nā waiwai o ka cellulose a lilo ia i mea pono i nā ʻano noi like ʻole, e like me ka meaʻai, nā mea hoʻonaninani, a me nā ʻoihana lāʻau.

He polymer nui loa ka HEC, me ka nui o nā kaupaona molekala a me nā degere o ka hoʻololi ʻana, e hoʻoholo ana i kona mau waiwai, e like me kona solubility, viscosity, a me ka gelation. ʻO ke kiʻekiʻe o ka hoʻololi ʻana he ana ia o ka helu o nā pūʻulu hydroxyethyl i hoʻopili ʻia i kēlā me kēia ʻāpana glucose o ka molekole cellulose, a hiki ke hoʻohālikelike ʻia mai ka 1 a hiki i ka 3, me nā degere kiʻekiʻe e hōʻike ana i ka nui o nā pūʻulu hydroxyethyl.

Hoʻohana ʻia ʻo HEC i nā huahana like ʻole e like me ka mānoanoa, stabilizer, a me ka binder. Hiki ke hoʻohana ʻia no ka hoʻonui ʻana i ka viscosity o ka hoʻokumu ʻana i ka wai, hoʻomaikaʻi i ke ʻano a me ka waha o nā huahana meaʻai, a hoʻonui i ka paʻa o nā emulsions. I ka ʻoihana lāʻau lapaʻau, hoʻohana ʻia ʻo HEC ma ke ʻano he mea hoʻopaʻa no nā papa, ma ke ʻano he mānoanoa no nā ʻano kumuhana, a ma ke ʻano he mea hoʻokuʻu hoʻomau no nā ʻōnaehana lawe lāʻau.

ʻO kekahi o nā waiwai koʻikoʻi o HEC ʻo kona hiki ke hana i nā gels i ka wai. Ke hoʻoheheʻe ʻia ʻo HEC i ka wai, hiki iā ia ke hana i kahi gel ma o kahi kaʻina i kapa ʻia ʻo hydration. ʻO ke kaʻina hana gelation e pili ana i ke kiʻekiʻe o ka hoʻololi ʻana, ke kaumaha molekala, a me ka neʻe ʻana o HEC i ka hopena. Hiki ke hoʻomalu ʻia ke kaʻina hana gelation o HEC ma o ka hoʻoponopono ʻana i kēia mau ʻāpana, kahi e pono ai i nā ʻano noi.

Hoʻohana maʻamau ʻia ʻo HEC i ka ʻoihana meaʻai ma ke ʻano he mānoanoa a me ka stabilizer i nā huahana e like me nā kīʻaha, nā lole, a me nā sopa. Hiki iā ia ke hoʻomaikaʻi i ke ʻano a me ka waha o kēia mau huahana, a hoʻonui i ko lākou kūpaʻa i ka manawa. Hiki ke hoʻohana ʻia ʻo HEC e hoʻopaʻa i nā emulsion, e like me ka mayonnaise, ma ka pale ʻana i ka hoʻokaʻawale ʻana o ka ʻaila a me ka wai.

I ka ʻoihana hoʻonaninani, hoʻohana ʻia ʻo HEC i kahi ākea o nā huahana mālama pilikino, me nā shampoos, conditioners, lotions, a me nā ʻaila. Hiki i ka HEC ke hoʻomaikaʻi i ke ʻano a me ka paʻa ʻana o kēia mau huahana, hoʻomaikaʻi i ko lākou mau waiwai moisturizing, a hāʻawi i kahi manaʻo ʻoluʻolu a velvety. Hiki iā ia ke hoʻokūpaʻa i nā emulsions i loko o nā mea hoʻonaninani a kōkua i ka pale ʻana i ka hoʻokaʻawale ʻana o nā mea ʻaila a me ka wai.

I ka ʻoihana lāʻau lapaʻau, hoʻohana ʻia ʻo HEC ma ke ʻano he mea hoʻopaʻa i nā papa papa e hōʻoia i ka paʻa ʻana o nā mea papa. Hoʻohana ʻia ʻo ia ma ke ʻano he mānoanoa no nā hoʻokumu topical, kahi e hiki ai ke hoʻonui i ka viscosity a me ka paʻa o nā ʻaila a me nā ʻaila. Hoʻohui ʻia, hoʻohana ʻia ʻo HEC ma ke ʻano he mea hoʻokuʻu paʻa i nā ʻōnaehana lawe lāʻau, kahi hiki iā ia ke hoʻomalu i ka nui o ka hoʻokuʻu ʻia ʻana o nā lāʻau i loko o ke kino.

Loaʻa iā HEC nā waiwai kūʻokoʻa i lilo ia i polymer pono i nā ʻano noi. Aia kekahi o kēia mau waiwai:

Ka wai-soluble: HEC nui loa ka wai-soluble, kahi e maʻalahi ai ka hoʻohui ʻana i loko o nā ʻano wai.

ʻAʻohe mea ʻawaʻawa a biocompatible: ʻO HEC ka mea maʻamau i manaʻo ʻia he mea palekana a biocompatible, kahi e pono ai i nā noi lāʻau lapaʻau a me nā mea hoʻonaninani.

Versatile: He polymer nui loa ka HEC i hiki ke hoʻohana ʻia i ka nui o nā noi ma muli o kona hiki ke hana i nā gels a hoʻololi i nā pae like ʻole o ka hoʻololi ʻana a me nā paona molekula.

I ka hopena, ʻo ka hydroxyethyl cellulose he polymer hiki ke hoʻoheheʻe ʻia i ka wai i loaʻa mai ka cellulose ma o ka hoʻohui ʻana o nā hui hydroxyethyl.