Hydroxyethyl Cellulose Etera

ʻO ka Hydroxyethyl cellulose ether kahi polymer non-ionic water-soluble, hiki ke hoʻoheheʻe ʻia i ka wai wela a me ka wai anuanu.ʻO ka Hydroxyethyl cellulose ether ka nui o nā viscosities, a ʻo nā ʻano wai wai āpau ʻaʻole Newtonian.

ʻO ka Hydroxyethyl cellulose ether he waiwai hydration maikaʻi loa.He laumā a ʻaʻahu kona ʻano wai, me ka maikaʻi o ka wai a me ka pae

ʻO kēia ka ʻano molecular structure kūpono o ka hydroxyethyl cellulose ether:

N = degere o ka hui

Aia ʻekolu pūʻulu hydroxyl ma kēlā me kēia ʻāpana anhydroglucose i cellulose, i mālama ʻia me ka alkali i loko o ka wai o ka sodium hydroxide solution no ka loaʻa ʻana o ka paʻakai paʻakai cellulose, a laila e hana i ka hopena etherification me ka ethylene oxide e hana i ka hydroxyethyl cellulose ether.I ke kaʻina hana o ka synthesizing HEC, ʻaʻole hiki i ka ethylene oxide ke hoʻololi wale i nā pūʻulu hydroxyl ma cellulose, akā e hana pū kekahi i ka hopena polymerization chain me nā pūʻulu hydroxyl i nā hui i pani ʻia.