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. Na te mea he pai nga ahuatanga o te HEC penei i te matotoru, te aukati, te marara, te whakaemulsifying, te honohono, te hanga kiriata, te tiaki i te makuku me te whakarato colloids whakamarumaru, kua whakamahia nuitia i roto i te tiaki kiri, te tirotiro hinu, te paninga, te hanga, te rongoa me te kai, nga kakano, te hanga pepa me te polymers. Polymerization me etahi atu mara. 40 reiti tatari mata ≥ 99%;
Nga ahuatanga o te ahua: he ma ki te kowhai marama he kiko, he paura totoka, he kore paitini, he hongi, he ngawari ki te wairewa ki te wai. Korekore i roto i nga whakarewa waro whanui.
Hydroxyethyl cellulose
I roto i te awhe o te uara PH o 2-12, he iti te huringa pokey, engari ka heke te pokey ki tua atu i tenei awhe. Kei a ia nga ahuatanga o te matotoru, te whakatarewa, te honohono, te whakaemulsifying, te marara, te pupuri i te makuku me te tiaki i te colloid. Ka taea te whakarite otinga o nga awhe pokey rereke. Karekau e tau i raro i te pāmahana me te pehanga noa, ka karo i te haumākū, te wera me te pāmahana teitei, he tino pai te tote wairewa mo nga dielectrics, a ko tana wairewa wai ka whakaaetia kia mau nga tote teitei me te pumau.
Nga mea nui: Hei katote-kore, ko te hydroxyethyl cellulose nga ahuatanga e whai ake nei i tua atu i te whakamatotoru, te whakatarewa, te here, te rere, te hanga kiriata, te marara, te pupuri i te wai me te whakarato colloids whakamarumaru:
1. He wairewa te HEC i roto i te wai wera, i te wai matao ranei, karekau e heke i te pāmahana teitei, te koropuputanga ranei, na te mea he maha nga ahuatanga o te whakarewatanga me nga ahuatanga pokey, me te waiariki kore;
2. Karekau he katote ka taea te noho tahi me te maha atu o nga momo polymers wairewa-wairewa, surfactants me nga 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 atu, engari ko te colloid tiaki te kaha kaha.
Kopa te waahi tono
Ka whakamahia hei whakapiringa, surfactant, kaihoko tiaki colloid, dispersant, emulsifier me te dispersion stabilizer. He maha nga momo tono i roto i te paninga, te waituhi, te muka, te tae, te hanga pepa, te whakapaipai, te pesticides, te tukatuka kohuke, te tango hinu me te rongoa.
1. I te nuinga o te wa e whakamahia ana hei maatete whakamarumaru, hei whakamarumaru, hei whakapiri, hei whakapumau me te taapiri mo te whakarite i te whakaehunga, te reera, te hinu hinu, te hinu, te kai horoi kanohi, te suppository me te papa, ka whakamahia ano hoki hei reera hydrophilic, rauemi angaahi, te whakarite i nga whakaritenga tuku-a-iwi. , ka taea hoki te whakamahi hei whakapumau i te kai.
2. Kei te whakamahia hei kaihoko rahi i roto i te ahumahi kakano, te honohono, te matotoru, te emulsifying, te whakapumau me etahi atu awhina i roto i nga waahanga hiko me nga waahanga marama.
3. Ka whakamahia hei whakamatao me te whakaheke filtrate mo te wai keri wai me te wai otinga, a ka kitea te kaha o te whakakaha i roto i te wai keri wai tote. Ka taea hoki te whakamahi hei kaihoko whakahaere mate wai mo te sima puna hinu. Ka taea te hono-whakawhiti ki nga katote whakarewa polyvalent hei hanga ra.
4. Ka whakamahia tenei hua hei dispersant mo te wai-wai-wai-a-te-wai-a-te-wai-a-te-wai-a-raa, te polystyrene me te polyvinyl chloride i roto i te hanga hinu pakaru. Ka taea hoki te whakamahi hei whakakao whakaehunga i roto i te ahumahi peita, te haumākū parenga tairongo i roto i te ahumahi hiko, ciment coagulation inhibitor me te makuku pupuri kaihoko i roto i te ahumahi hanga. Ko te whakakikorua me te whakapiri niho mo te ahumahi uku. Kei te whakamahia nuitia ki te ta me te tae, te kakano, te hanga pepa, te rongoa, te akuaku, te kai, te hikareti, te pesticides me te patu ahi.
5. Whakamahia rite surfactant, colloid māngai tiaki, whakaehunga stabilizer mo te vinyl pūhaumāota, vinyl acetate me ētahi atu whakaehunga, me te taherapa tackifier, dispersant, dispersion stabilizer, me ētahi atu. pesticides, aha atu. He maha ano nga whakamahinga mo te tango hinu me te umanga miihini.
6. Ko te Hydroxyethyl cellulose he mahi mata, he matotoru, he whakatarewa, he here, he whakaemi, he hanga kiriata, he marara, he pupuri i te wai me te whakamarumaru i roto i nga mahi rongoa totoka me te wai.
7. Ka whakamahia hei dispersant mo te whakamahi i te wai-a-wai-a-wai-a-te-wai-a-waa whawhati wai, polyvinyl chloride me te polystyrene. Ka taea hoki te whakamahi hei whakakao emulsion i roto i te umanga peita, te aukati coagulation ciment me te makuku pupuri i te umanga hangahanga, te kaihoko glazing me te whakapiri toothpaste i roto i te umanga uku. Kei te whakamahia nuitia ki te tuhi me te tae, te kakano, te hanga pepa, te rongoa, te akuaku, te kai, te hikareti me te pesticides me etahi atu mara ahumahi.
Kopa mahi hua
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 whakamaarata colloidal kei roto i nga otinga dielectric 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.
Me pehea te kopaki
Whakauru tika ki te hanga
1. Taapirihia he wai ma ki te peere nui kua oti te whakauru ki te whakaranu kutikuti teitei.
2. Tīmatahia te kōrori i te tere iti, ka tatari kia ata rite te waikura hydroxyethyl cellulose ki roto i te otinga.
3. Whakakorikori tonu kia ruku nga matūriki katoa.
4. Kātahi ka tāpirihia he māngai antifungal, tāpiritanga kawakore pēnei i te poaka, he awhina whakamarara, he wai haukini.
5. 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 roto i te tauira, ka huri kia oti ra ano te hua.
Te mahi a te hydroxyethyl cellulose i roto i te hanganga matū o nga mea whakapaipai? Ko nga huinga polymer wairewa-wai e whakamahia ana i roto i nga mea whakapaipai ka wehewehea ki nga waahanga e rua: te taiao me te waihanga.
Ko nga puhui polymer wairewa-wai-taiao ko: te maaka, te kapia tipu, te gelatin kararehe, me etahi atu, engari karekau te kounga, he ngawari te pa ki te huarere, te taiao matawhenua, te iti o te hua, ka ngawari te kino o te huakita me te maaka.
Ko nga pūhui polymer wairewa wai-wairewa ko te waipiro polyvinyl, te polyvinylpyrrolidone, me etahi atu, he mea pumau, he iti te riri o te kiri me te iti o te utu, na reira kua whakakapihia e ratou nga pūhui polymer wairewa-wai-maori ka noho hei puna matua o nga rauemi mata colloid.
Ka wehewehea ano ki nga puhui polymer-wai-wai-waiwai me te waihanga.
He maha nga wa ka whakamahia nga pūhui polymer wai-wairewa: methyl cellulose, ethyl cellulose, konutai carboxymethyl cellulose, hydroxyethyl cellulose, me te guar gum me ona hua.
Ka whakamahia noa nga puhui polymer wairewa-wairewa: polyvinyl alcohol, polyvinylpyrrolidone, acrylic acid polymer, etc.
Ka whakamahia enei i roto i nga mea whakapaipai hei whakapiri, hei whakakao, hei hanga kiriata, hei whakapumau whakaehunga.
Te wa tuku: Noema-11-2022