Focus on Cellulose ethers

Nga Taonga me nga Whakatupato o Hydroxyethyl Cellulose

Hydroxyethyl cellulose (HEC)he ma, he kowhai marama ranei, he hongi, he kikokore, he paura totoka ranei, he mea whakarite ma te tauhohenga whakaetere o te cellulose alkaline me te ethylene oxide (te chlorohydrin ranei). Ko nga etera cellulose wairewa nonionic. I tua atu i te matotoru, te whakatarewa, te here, te maanu, te hanga kiriata, te marara, te pupuri wai me te whakarato colloid tiaki, kei a ia nga ahuatanga e whai ake nei:

1. He wairewa te HEC i roto i te wai wera, te wai matao ranei, te teitei o te wera, te koropupuke ranei me te kore ua, na reira he maha nga ahuatanga o te whakarewatanga me te pokey, me te waiariki kore;

2. Karekau he katote, ka taea te noho tahi me te tini o etahi atu polymers wairewa-wairewa, surfactants, me nga tai. He pai rawa atu te whakamaarata colloidal mo 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 kaha o te colloid tiaki te kaha rawa atu. Na te mea he pai nga ahuatanga o te whakapakeke, te aukati, te whakamarara, te whakaemulsifying, te piri, te hanga kiriata, te tiaki i te makuku me te whakarato i te colloid tiaki, kua whakamahia nuitia te HEC ki te torotoro hinu, paninga, hanga, rongoa, kai, pueru, 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 arohia nga mea e whai ake nei. te

1. I mua, i muri i te taapiri i te hydroxyethyl cellulose, me whakaoho tonu kia tino marama, kia marama te otinga. te

2. Me ata tatari ki roto i te taika ranu, kaua e whakauru tika i te nui o te hydroxyethyl cellulose, te hydroxyethyl cellulose ranei kua hanga kapia me nga poi ki roto i te tank whakaranu. te

3. Ko te pāmahana wai me te uara PH i roto i te wai he tino hononga ki te whakakorenga o te hydroxyethyl cellulose, no reira me aro nui. te

4. Kaua e taapiri etahi matū kawakore ki te ranunga i mua i te whakamahanatanga o te paura hydroxyethyl cellulose i roto i te wai. Ko te whakanui ake i te uara PH i muri i te whakamahana ka awhina i te memeha. te

5. I te mea e taea ana, taapirihia he kaihoko anti-fungal i te wa e taea ai. te

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, kare ano hoki e hanga i nga colloid porowhita korekore i muri i te taapiri wai.


Wā tuku: Tihema-27-2022
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