ʻAno:ʻO Hydroxyethyl Cellulose （HEC CAS:9004-62-0） he pauda keʻokeʻo a melemele ʻole, ʻala ʻole, a maʻalahi ke kahe.Hiki ke hoʻoheheʻe ʻia i ka wai anuanu a me ka wai wela, akā ʻaʻole hiki ke hoʻoheheʻe ʻia i ka hapa nui o nā mea hoʻoheheʻe organik.Hoʻololi liʻiliʻi ka waiwai pH i ka laulā o 2-12, akā e emi ana ka viscosity ma mua o kēia pae.
Waiwai：ʻO Hydroxyethyl Cellulose （HEC CAS:9004-62-0） he mea hoʻohana mānoanoa no ka cellulose ether e pili ana i ka wai kūlohelohe.He hui nonionic hiki ke hoʻoheheʻe ʻia i 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.Paʻa ka thermally, ʻaʻole ʻike ʻia he gel i ka wā e hoʻomehana ai, ʻaʻole e kahe ma lalo o nā kūlana acidic, a he waiwai hoʻi ka hana kiʻiʻoniʻoni maikaʻi.Hiki ke hana ʻia kona ʻano wai i nā kiʻi ʻoniʻoni, hiki ke hana ʻia e ka hana o ka cellulose alkaline a me ka Chemicalbook ethylene oxide, a loaʻa iā ia nā waiwai o ka mānoanoa, emulsification, adhesion, suspension, film-forming, moisture retention, a me ka pale colloid.ʻO ke kuleana o nā mea mānoanoa i loko o nā inika wai-wai ka mea e mānoanoa ai iā lākou.ʻO ka hoʻohui ʻana i nā mea mānoanoa i ka inika e hoʻonui i kona viscosity, hiki ke hoʻomaikaʻi i ke kūpaʻa kino a me ke kemika o ka inika;Ma muli o ka piʻi ʻana o ka viscosity, hiki ke hoʻomalu ʻia ka rheology o ka inika i ka wā paʻi;ʻAʻole maʻalahi ka hoʻoheheʻe ʻana o ka puaʻa a me ka mea hoʻopiha i ka inika, e hoʻonui ana i ka paʻa o ka mālama ʻana i ka inika wai.
Hana Hana：ʻO ka alkali cellulose kahi polymer maoli i loaʻa ʻekolu pūʻulu hydroxyl ma kēlā me kēia apo kumu fiber.ʻO ka hui hydroxyl ikaika loa e hana i ka hydroxyethyl cellulose.E hoʻomoʻi i ka pulupulu maka a i ʻole ka pulp i hoʻomaʻemaʻe ʻia i loko o 30% wai alkali, a lawe i waho no ke kaomi ʻana ma hope o ka hapalua hola.E kaomi a hiki i ka 1:2.8 ka wai alkaline, a laila e ʻoki.Hoʻokomo ʻia ka cellulose alkali i ʻoki ʻia i loko o ka reactor, hoʻopaʻa ʻia, holoi ʻia, a hoʻopiha ʻia me ka nitrogen.Wehe pinepine ʻia ʻo Chemicalbook a hoʻopiha ʻia me ka nitrogen e pani i nā ea āpau i loko o ka reactor.E kaomi i loko o ka wai ethylene oxide i hoʻomaloʻo ʻia, e hoʻoheheʻe i ka wai hoʻoluʻu i loko o ka ʻaʻahu reactor, a e hoʻopaʻa i ka wela o ka hopena ma kahi o 25 ℃ no 2h e loaʻa ai kahi huahana hydroxyethyl cellulose crude.Holoi ʻia ka huahana me ka waiʻona, hoʻokaʻawale ʻia me ka acetic acid 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 ka hydroxyethyl cellulose.
Ka manawa hoʻouna: Mar-28-2023
