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.
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.
Me pehea te whakamahi i te hydroxyethyl cellulose? Me pehea te taapiri?
1. Tāpiri tika i roto i te hanga
Ko tenei tikanga te mea ngawari me te wa poto rawa atu.
Taapirihia he wai ma ki roto i te peere nui e mau ana ki te whakaranu kutikuti teitei. Tīmatahia ki te kōrori i te tere iti, ka tatari kia ata rite te hydroxyethyl cellulose ki roto i te otinga. Me whakaoho tonu kia ruku nga matūriki katoa. Na ka taapirihia nga rongoa me nga momo taapiri. Pērā i te poaka, te awhina whakamarara, te wai haukini, me etahi atu. Oho kia rewa katoa te hydroxyethyl cellulose (ka tino piki te pokey o te otinga) i mua i te taapiri i etahi atu waahanga ki te tauira mo te tauhohenga.
2. Ka mau ki te waipiro whaea e tatari ana
Ko te whakarite i te waipiro whaea me te kukū teitei i te tuatahi, katahi ka taapiri atu ki te hua. Ko te painga o tenei tikanga he nui ake te ngawari, ka taea te taapiri tika ki te hua kua oti, engari me penapena tika. Ko nga hikoinga o tenei tikanga he rite ki te nuinga o nga hikoinga o te tikanga 1; ko te rerekee karekau he hiahia mo te kutikuti kutikuti teitei, a ko etahi o nga kaikohikohiko he nui te kaha ki te pupuri i te hydroxyethyl cellulose kia marara rite i roto i te otinga ka taea te haere tonu me te kore e mutu Ohooho kia rewa rawa ki roto i te wairewa viscous. Heoi, me tohu ko te fungicide me whakauru wawe ki te waipiro whaea.
Nga tohutohu atawhai
I te mea ko te hydroxyethyl cellulose kua rongoa i te mata he paura, he totoka kiko ranei, i te wa e whakarite ana koe i te waipiro whaea hydroxyethyl cellulose, me mahara koe ki te aro ki nga mea 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 tank whakaranu, kaua hoki e ringihia te hydroxyethyl cellulose ki roto i te tank ranu i roto i nga rahinga nui, tika ranei ki nga kapia me nga poi.
(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 ruku ka awhina i te whakakorenga.
(5) Tāpirihia 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.
Te wa tuku: Maehe-21-2023