Ko nga tikanga whakakorenga o te HPMC ko: te wai matao te tikanga otinga inamata me te tikanga otinga wera, te tikanga whakaranu paura me te tikanga whakamakuku whakarewa pararopi.
Ko te otinga wai matao o HPMC ka tukuna ki te glyoxal, ka tere marara ki te wai matao.I tenei wa, ehara i te tino otinga.He otinga ina piki te pokey.Ko te otinga wera kaore i te rongoa ki te glyoxal.Ka nui te rōrahi o te glyoxal, ka tere te marara, engari ka tere te piki o te pokey.
I te mea he koretake te HPMC ki te wai wera, ka taea te whakamararatia o te HPMC ki te wai wera i te timatanga, ka tere te rewa ina whakamatao.
E rua nga tikanga angamaheni e whakaahuatia ana i raro nei:
1) Kuhua te nui o te wai wera ki roto i te ipu ka whakamahana ki te 70 ℃.I āta tāpirihia te Hydroxypropyl methylcellulose i raro i te whakakorikori puhoi, ka timata te HPMC ki te rewa ki runga i te wai, katahi ka hanga he slurry, i whakamataohia i raro i te whakakorikori.
2) Tāpirihia te 1 / 3, te 2 / 3 ranei o te wai e hiahiatia ana ki roto i te ipu, whakamahana ki te 70 ℃, whakamararatia te HPMC kia rite ki te tikanga 1) ki te whakarite i te slurry wai wera;Na ka tapirihia te toenga o te wai matao ki te wai wera, whakaohokia ka whakamataohia te ranunga.
Ka taea te rewa te HPMC wai matao ma te taapiri i te wai, engari ko te wa pokey tuatahi ko te 1 ki te 15 meneti.Ko te wa mahi kaua e neke ake i te wa timata.
Tikanga whakaranu paura: Ka marara katoa te paura HPMC ma te whakamaroke i nga waahanga paura kotahi, nui ake ranei, ka rewa ki te wai.I tenei keehi, ka taea te whakakore i te HPMC me te kore he keke.
Tikanga makuku whakarewa pararopi:
Ka taea te rewa te Hydroxypropyl methylcellulose ma te whakamararatia ki te whakarewa pararopi, ma te whakamakuku ranei ki te whakarewa pararopi, katahi ka taapiri atu ki te wai matao, ki te wai matao ranei.Ethanol, ethylene glycol, me etahi atu ka taea te whakamahi hei whakarewa waro.
Wā tuku: Hānuere-20-2022