Pūāhua:Ko te Hydroxyethyl Cellulose （HEC CAS:9004-62-0） he paura mā, he kowhai rānei, kāore he kakara, he ngāwari te rere. Ka wairewa ki te wai matao me te wai wera, engari kāore e wairewa i te nuinga o ngā whakarewa waro. Ka paku rerekē te uara pH i te awhe 2-12, engari ka heke te matotoru ki tua atu i tēnei awhe.
Uara：Ko te Hydroxyethyl Cellulose (HEC CAS:9004-62-0) he whakamātotoru e whakamahia whānuitia ana mō ngā waituhi wai-wai e hangai ana ki te cellulose ether. He matū kore-ionic wairewa-wai, he pai te kaha ki te whakamātotoru mō te wai, ka taea te whakapōrearea e te hāora, ngā waikawa, me ngā whākōkī, ā, ka taea te hono atu e te Cu2+ i raro i ngā āhuatanga kawakore. He pumau i te wera, kāore e puta he kirikiri i te wā e whakamahana ana, kāore e pupū ake i raro i ngā āhuatanga waikawa, ā, he pai te āhua hanga kiriata. Ka taea te hanga i tōna wairewa wai hei kiriata mārama, ka taea te hanga mā te mahi a te cellulose kawakore me te Chemicalbook ethylene oxide, ā, he āhuatanga whakamātotoru, whakaemulsification, piri, whakatārewatanga, hanga kiriata, pupuri makuku, me te tiaki colloid. Ko te mahi a ngā whakamātotoru i roto i ngā waituhi wai-wai ko te whakamātotoru i a rātou. Mā te tāpiri i ngā whakamātotoru ki te waituhi ka whakanui ake i tōna matotoru, ka taea te whakapai ake i te pumau ā-tinana me te matū o te waituhi; Nā te pikinga o te matotoru, ka taea te whakahaere i te rheology o te waituhi i te wā e tā ana; Kāore e ngāwari te maturuturu o te tae me te whakakī i roto i te mangumangu, ā, ka nui ake te pumau o te waituhi wai hei penapena.
Tikanga Whakaputa：He pūhui taiao te cellulose kawakore e toru ngā rōpū hydroxyl kei runga i ia mowhiti turanga muka. Ka tauhohe te rōpū hydroxyl tino kaha ki te whakaputa i te hydroxyethyl cellulose. Ruia te miro mata, te penupenu kua whakapaia rānei ki roto i te 30% alkali wai, ā, tangohia kia pēhia i muri i te hawhe haora. Pēhia kia tae te nui o te wai kawakore ki te 1:2.8, kātahi ka kuru. Ka makahia te cellulose kawakore kua kuru ki roto i te tauhohenga, ka hiritia, ka whakakorengia, ka whakakīia ki te hauota. Ka whakakorengia, ka whakakīia ki te hauota kia maha ngā wā hei whakakapi i te hau katoa i roto i te tauhohenga. Pēhia te wai ethylene oxide kua whakamataohia i mua, ka tukuna te wai whakamatao ki roto i te koti tauhohenga, ā, ka whakahaere i te pāmahana tauhohenga ki te 25 ℃ mō te 2 hāora kia puta he hua hydroxyethyl cellulose mata. Ka horoia te hua mata ki te waipiro, ka whakakorengia ki te waikawa acetic ki te pH 4-6, ā, ka honoa ki te glyoxal kia pakeke. Kātahi ka horoia ki te wai, ka centrifuge, ka whakamaroke, ka whakamaroke, ka huri kia puta he hydroxyethyl cellulose.
Wā tuku: Maehe-28-2023
