Ko te Hydroxyethyl cellulose (HEC) he ma, he kowhai marama ranei, he hongi, he kirikiri, he paura totoka kore-paitini kua oti te whakarite ma te whakaeera o te cellulose kawakore me te ethylene oxide (te chlorohydrin ranei). Ko nga etera cellulose wairewa nonionic. I tua atu i te matotoru, te whakatarewa, te here, te rere, te hanga kiriata, te marara, te pupuri wai me te whakarato i nga colloids whakamarumaru, kei a ia nga ahuatanga e whai ake nei:
1. He wairewa te HEC i roto i te wai wera, i te wai matao ranei, karekau e heke i te wera nui, i te koropupuputanga ranei, na reira he whanuitanga o te wairewa me nga ahuatanga pokey, me te waiariki kore;
2. Ka taea e te katote-kore ake te noho tahi me te maha atu o nga momo polymers wairewa-wairewa, surfactants me nga tai, a he pai rawa atu te katoo colloidal kei roto i nga otinga electrolyte teitei;
3. Ko te kaha o te pupuri i te wai e rua ake te teitei o te methyl cellulose, a he pai ake te whakahaere o te rere.
4. Ka whakatauritea ki te methyl cellulose me te hydroxypropyl methyl cellulose, ko te kaha marara o HEC te mea kino rawa atu, engari ko te colloid tiaki te kaha kaha. Na te mea he pai nga ahuatanga o te HEC mo te whakamaroke, te aukati, te whakamarara, te whakaemulsifying, te honohono, te hanga kiriata, te tiaki i te makuku me te whakarato colloid tiaki, kua whakamahia nuitia i roto i te torotoro hinu, te paninga, te hanga, te rongoa me te kai, te kakano, te pepa me te polymer Polymerization. me etahi atu mara.
Whakatupato:
I te mea he paura, he totoka ranei te cellulose hydroxyethyl cellulose, he ngawari ki te hapai me te memeha i roto i te wai mena ka tuhia nga take e whai ake nei.
1. I mua, i muri i te taapiri i te hydroxyethyl cellulose, me whakaoho tonu kia tino marama, kia marama te otinga.
2. Me ata tatari ki roto i te oko ranu, kaua hoki e whakauru tika i te hydroxyethyl cellulose kua hanga hei kapia me nga poi ki roto i te oko whakaranu.
3. Ko te pāmahana wai me te uara pH o te wai he tino hononga ki te whakakorenga o te hydroxyethyl cellulose, no reira me aro nui ki a ia.
4. Kaua rawa e tāpirihia he matū kawakore ki te ranunga i mua i te whakamahanatanga o te paura hydroxyethyl cellulose e te wai. Ko te whakanui ake i te uara PH i muri i te whakamahana he awhina mo te whakakore.
5. I te mea e taea ana, taapirihia nga rongoa antifungal i te wa e taea ai.
6. A, no te whakamahi i te hydroxyethyl cellulose teitei-nui, ko te kukū o te waipiro whaea kia kaua e teitei ake i te 2.5-3%, ki te kore ka uaua ki te hapai i te waipiro whaea. Ko te hydroxyethyl cellulose i muri i te maimoatanga he mea ngawari ki te hanga kapia, poipoi ranei, karekau hoki e hanga i nga colloid porowhita korekore i muri i te taapiri wai.
Wā tuku: Nov-15-2022