Hydroxyethyl cellulose me te ethyl cellulose

Ko te Hydroxyethyl cellulose me te ethyl cellulose he matū rereke e rua.Kei a ratou nga ahuatanga e whai ake nei.

Hydroxyethyl cellulose

Ka rite ki te surfactant katote-kore, hei taapiri atu ki te whakamaroke, ki te whakatarewa, ki te here, ki te rewa, ki te hanga kiriata, ki te whakamarara, ki te pupuri i te wai me te whakarato colloids whakamarumaru, kei a ia ano 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 te mea he whanuitanga o te whakarewatanga me nga ahuatanga pokey, me te waiariki kore;

2. Ko te katote-kore ano ka taea te noho tahi me te tini o etahi atu polymers wairewa-wairewa, surfactants me te tai, a he pai rawa atu te whakamaarata 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, engari ko te colloid tiaki te kaha kaha.

Ethyl cellulose

He ether cellulose kore-katote e kore e rewa i roto i te wai engari ka whakarewahia i roto i nga whakarewa waro.Kei a ia nga ahuatanga e whai ake nei:

1. Ehara i te mea ngawari ki te tahu.

2. He pai te pumau o te waiariki me te pai o te werawera.

3. Kaore he tae ki te ra.

4. He pai te ngawari.

5. He pai nga ahuatanga dielectric.

6. He pai te aukati alkali me te ngoikore o te waikawa waikawa.

7. He pai te mahi anti-hoholo.

8. He pai te aukati ki te tote, te makariri me te makuku.

9. Ka mau ki nga matū, te rokiroki mo te wa roa kaore he kino.

10. Hototahi ki te maha kapia me te pai hototahi ki plasticizers katoa.

11. He ngawari ki te huri i te tae i raro i te taiao kawakore kaha me nga tikanga wera.