ʻAno:ʻO ka Hydroxyethyl Cellulose （HEC CAS:9004-62-0） he pauka keʻokeʻo a melemele paha, ʻaʻohe ʻala, a maʻalahi ke kahe. Hiki ke hoʻoheheʻe ʻia i ka wai anuanu a me ka wai wela, akā ma ke ʻano laulā, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka hapa nui o nā mea hoʻoheheʻe organik. Hoʻololi iki ka waiwai pH ma ka pae o 2-12, akā emi ka mānoanoa ma mua o kēia pae.
Waiwai：ʻO Hydroxyethyl Cellulose （HEC CAS:9004-62-0） he mea hoʻomānoanoa maʻamau no nā ʻīnika wai organik i hoʻokumu ʻia i ka cellulose ether. He hui nonionic wai-soluble ia nona ka hiki ke hoʻomānoanoa maikaʻi no ka wai, hiki ke hoʻohaʻahaʻa ʻia e ka oxygen, nā waikawa, a me nā enzymes, a hiki ke hoʻopili ʻia e Cu2+ ma lalo o nā kūlana alkaline. He paʻa ia i ka wela, ʻaʻole ʻike ʻia he gel i ka wā e hoʻomehana ai, ʻaʻole e precipitate ma lalo o nā kūlana acidic, a he waiwai maikaʻi kona ʻano hana kiʻiʻoniʻoni. Hiki ke hana ʻia kona hopena wai i mau kiʻiʻoniʻoni moakaka, hiki ke hana ʻia e ka hana a ka alkaline cellulose a me Chemicalbook ethylene oxide, a he mau waiwai o ka hoʻomānoanoa, emulsification, adhesion, suspension, film-forming, retention, making moisture, a me ka pale colloid. ʻO ke kuleana o nā mea hoʻomānoanoa i nā ʻīnika wai e hoʻomānoanoa iā lākou. ʻO ka hoʻohui ʻana i nā mea hoʻomānoanoa i ka ʻīnika e hoʻonui i kona viscosity, hiki ke hoʻomaikaʻi i ke kūpaʻa kino a me ke kemika o ka ʻīnika; Ma muli o ka hoʻonui ʻana o ka viscosity, hiki ke hoʻomalu ʻia ka rheology o ka ʻīnika i ka wā e paʻi ana; ʻAʻole maʻalahi ka hoʻoheheʻe ʻia o ka pigment a me ka mea hoʻopihapiha i loko o ka ʻīnika, e hoʻonui ana i ka paʻa o ka mālama ʻana i ka ʻīnika wai.
ʻAno Hana：He polymer kūlohelohe ka cellulose alkali nona nā hui hydroxyl ʻekolu ma kēlā me kēia apo kumu fiber. Hoʻihoʻi ka hui hydroxyl ikaika loa e hana i ka hydroxyethyl cellulose. E hoʻomohu i ka linter pulupulu maka a i ʻole ka pulp i hoʻomaʻemaʻe ʻia i loko o 30% alkali wai, a lawe i waho no ke kaomi ʻana ma hope o ka hapalua hola. E kaomi a hiki i ka nui o ka wai alkaline i ka 1:2.8, a laila e kuʻi. Hoʻokomo ʻia ka cellulose alkali i kuʻi ʻia i loko o ka reactor, sila ʻia, hoʻomaʻemaʻe ʻia, a hoʻopiha ʻia me ka nitrogen. Hoʻomaʻemaʻe pinepine ʻia a hoʻopiha ʻia me ka nitrogen e pani i ka ea āpau i loko o ka reactor. E kaomi i loko o ka wai ethylene oxide i hoʻomaʻalili mua ʻia, e hoʻolei i ka wai hoʻoluʻu i loko o ka ʻaʻahu reactor, a e kāohi i ka mahana o ka hopena i kahi o 25 ℃ no 2h e loaʻa ai kahi huahana hydroxyethyl cellulose maka. Holoi ʻia ka huahana maka me ka waiʻona, hoʻopau ʻia me ka waikawa acetic i ka pH 4-6, a hoʻopili ʻia me ka glyoxal no ka ʻelemakule. A laila holoi me ka wai, centrifuge, dehydrate, maloʻo, a wili e loaʻa ai ka hydroxyethyl cellulose.
Ka manawa hoʻouna: Malaki-28-2023
