Pūāhua:Ko te Hydroxyethyl Cellulose （HEC CAS:9004-62-0） he paura ma, kowhai kowhai ranei kaore he kakara, he kakara, he ngawari te rere.Wairewa i roto i te wai matao me te wai wera, engari i te nuinga o nga wa karekau i roto i te nuinga o nga whakarewa pararopi.He paku rereke te uara pH i te awhe o te 2-12, engari ka heke te pokey ki tua atu i tenei awhe.
Uara：Ko te Hydroxyethyl Cellulose （HEC CAS:9004-62-0） he mea whakamaroke e whakamahia nuitia ana mo nga waituhi wai-wai-wai-a-whare e pa ana ki te etera.He puhui nonionic te wai-wairewa he pai te kaha o te matotoru mo te wai, ka taea te whakaheke e te hāora, te waikawa, me te whākōkī, ka taea te whakawhiti e te Cu2+ i raro i nga tikanga kawakore.He pai te waiariki, kare e puta he reera i te wa e whakamahana ana, karekau e heke i raro i nga tikanga waikawa, he pai hoki nga taonga hanga kiriata.Ko tana otinga wai ka taea te hanga ki nga kiriata maramara, ka taea te hanga e te mahi a te cellulose alkaline me te Chemicalbook ethylene oxide, me nga ahuatanga o te matotoru, te emulsification, te piri, te aukati, te hanga kiriata, te pupuri makuku, me te tiaki colloid.Ko te mahi a te hunga whakapouri i roto i nga waituhi wai-wai ko te whakapakeke.Ko te taapiri i nga kaitao ki te mangumangu ka piki ake tona poikeke, ka taea te whakapai ake i te pumau o te waituhi me te matū;Na te piki ake o te viscosity, ka taea te whakahaere i te rheology o te mangumangu i te wa e tuhi ana;Ko te poaka me te whakakii i roto i te mangumangu kaore i te ngawari ki te whakaheke, ka piki ake te pumau o te waituhi waituhi.
Tikanga Whakaputa：Ko te cellulose alkali he polymer taiao e toru nga roopu hydroxyl kei runga i ia mowhiti turanga muka.Ka tauhohe te roopu hydroxyl tino kaha ki te whakaputa hydroxyethyl cellulose.Waiwaihia te miro mata, te penupenu parakore ranei ki te 30% wai kawakore, ka mau ki waho mo te pehi i muri i te hawhe haora.Patohia kia tae ra ano te wai kawakore ki te 1:2.8, katahi ka kuru.Ka makahia te cellulose alkali ki roto i te reactor, ka hiri, ka whakakorehia, ka whakakiia ki te hauota.He maha nga wa ka whakakorehia e te pukapuka matū ka whakakiia ki te hauota hei whakakapi i te hau katoa o te reactor.Pēhia ki roto i te wai ethylene oxide kua whakamatao, tukuna he wai whakamatao ki roto i te koti reactor, me te whakahaere i te pāmahana tauhohenga ki te 25 ℃ mo te 2h ki te whiwhi i te hua mawhero hydroxyethyl cellulose.Ka horoia te hua maoa ki te waipiro, ka whakakorehia ki te waikawa acetic ki te pH 4-6, ka honoa ki te glyoxal mo te koroheketanga.Katahi ka horoi ki te wai, te centrifuge, ka whakamakuku, ka maroke, ka orohia kia whiwhi ai te hydroxyethyl cellulose.
Te wa tuku: Maehe-28-2023
