He aha te Hydroxyethyl Cellulose?
Ko te Hydroxyethyl cellulose (HEC), he ma, he kowhai marama ranei, he kakara, he kikokore, he paura totoka ranei, he mea whakarite ma te tauhohenga whakaeera o te cellulose kawakore me te ethylene oxide (he chlorohydrin ranei), no nga Etera cellulose wairewa Nonionic. Mai i 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, te kai, te kakano, te hanga pepa me te polymer Polymerization me etahi atu mara.
Ko te Hydroxyethyl cellulose e whakamahia nuitia ana i roto i te umanga whakakikorua, me titiro tatou ki te mahi i roto i nga paninga:
Ka aha ina tutaki te hydroxyethyl cellulose ki te peita wai?
I te mea he surfactant kore-katote, kei a hydroxyethyl cellulose nga ahuatanga e whai ake nei hei taapiri atu ki te whakamatotoru, ki te whakatarewa, ki te here, ki te maanu, ki te hanga kiriata, ki te marara, ki te pupuri wai me te whakarato colloid tiaki:
He wairewa te HEC i roto i te wai wera, i te wai matao ranei, te teitei o te wera, te koropupuke ranei me te kore ua, na reira he whanuitanga o te whakarewatanga me nga ahuatanga pokey, me te waiariki kore;
Ko te kaha o te pupuri i te wai e rua te teitei ake i tera o te methyl cellulose, a he pai ake te whakahaere o te rere;
Karekau he katote ka taea te noho tahi me te maha atu o nga momo polymers wairewa-wairewa, surfactants, me nga tai. He pai rawa atu te whakamaarata colloidal mo nga otinga electrolyte teitei;
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.
I te mea ko te hydroxyethyl cellulose te rongoa he paura, he totoka kiko ranei, me whai nga mea e whai ake nei i te wa e whakareri ana i te waipiro whaea hydroxyethyl cellulose:
(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 taika ranu, kaua e hoatu he rahinga nui, kaua ranei e maka tika te hydroxyethyl cellulose ki roto i te tank whakaranu.
(3) Ko te pāmahana wai me te uara PH i roto i te wai he hononga nui ki te whakakorenga o te hydroxyethyl cellulose, no reira me aro nui.
(4) Kaua e taapiri etahi matū kawakore ki te ranunga i mua i te whakamakuku i te paura hydroxyethyl cellulose ki te wai. Ko te whakanui ake i te pH i muri i te makuku ka awhina ki te memeha.
(5) I te mea ka taea, taapirihia he kaihoko antifungal i mua.
(6) I te wa e whakamahi ana i te hydroxyethyl cellulose teitei, ko te kukū o te waipiro whaea kia kaua e teitei ake i te 2.5-3% (ma te taumaha), mena ka uaua te hapai i te waipiro whaea.
Wā tuku: Noema-21-2022