Focus on Cellulose ethers

Te whakamahinga o te konutai carboxymethyl cellulose me te hydroxyethyl cellulose i roto i nga hua matū o ia ra

Te whakamahinga o te konutai carboxymethyl cellulose me te hydroxyethyl cellulose i roto i nga hua matū o ia ra

Ko te konutai Carboxymethylcellulose (CMC-Na) he matū waro, he pärönaki carboxymethylated o te cellulose, me te tino kapia cellulose katote.Ko te konutai carboxymethyl cellulose he pūhui polymer anionic kua whakaritea ma te tauhohe i te cellulose taiao me te kawakawa me te waikawa monochloroacetic, me te taumaha ngota mai i te tini mano ki te miriona.Ko te CMC-Na he paura kirikiri, he paura maramara ranei, he kore kakara, he reka, he hygroscopic, he ngawari ki te marara ki te wai kia puta he otinga colloidal marama.

I te wa e noho koretake ana, he kawakore ranei, ko te wairewa he wai pokey teitei.Ka mau ki nga rongoa, te marama me te wera.Heoi, he iti te wera ki te 80°C, a ki te whakamahana mo te wa roa ki runga ake i te 80°C, ka heke te pokey ka kore e rewa ki te wai.

Ko te konutai carboxymethyl cellulose ano he momo whakakaha.Na te pai o nga ahuatanga o te mahi, kua whakamahia nuitia i roto i te ahumahi kai, me te whakatairanga i te tere me te hauora o te ahumahi kai ki tetahi waahanga.Hei tauira, na te kaha o te whakapakeke me te whakaemulsifying, ka taea te whakamahi ki te whakapumau i nga inu miraka pē me te whakanui ake i te pokey o te punaha miraka pē;na te kaha o te wai me te rehydration, ka taea te whakamahi ki te whakapai ake i te kai rimurapa penei i te taro me te taro koromamao.te kounga, te roa o te oranga o nga hua rimurapa me te whakanui i te reka.

Na te mea he paanga o te reera, he pai ki te kai kia pai ake te hanga reera, na reira ka taea te whakamahi ki te hanga tiēre me te tāmi;ka taea hoki te whakamahi hei papanga paninga kai, ka whakahuihuitia ki etahi atu mea whakapouri, ka horahia ki runga i etahi papa kai, ka taea e ia te pupuri i te kai kia hou tonu, a, na te mea he mea kai, e kore e puta he kino ki te tangata. hauora.Na reira, ko te CMC-Na te kai-koeke, hei taapiri kai pai, e whakamahia nuitia ana i roto i te hanga kai i roto i te umanga kai.

 

Ko te Hydroxyethylcellulose (HEC), te tauira matū (C2H6O2)n, he ma, he kowhai marama ranei, he hongi, he kikokore, he paura totoka kore-paitini, he mea hanga mai i te cellulose alkaline me te ethylene oxide (he chlorohydrin ranei) I whakaritea ma te tauhohenga whakaeterera, no te kore- te katote wairewa cellulose ethers.Na te mea he pai nga ahuatanga o te HEC mo te whakamaroke, te whakatarewa, te whakamarara, te whakaemulsifying, te here, te hanga kiriata, te tiaki i te makuku me te whakarato colloid tiaki.

He ngawari te whakarewa ki te wai i te 20°C. Kare e whakarewahia i roto i nga whakarewa pararopi noa.Kei a ia nga mahi o te whakapakeke, te aukati, te here, te whakaemulsifying, te whakamarara, me te pupuri i te makuku.Ka taea te whakarite otinga i roto i nga awhe pokey rereke.He tino pai te wairewa tote mo nga electrolytes.

Ka huri paku te pokey i te awhe o te uara PH 2-12, engari ka heke te pokey ki tua atu i tenei awhe.Kei a ia nga ahuatanga o te matotoru, te whakatarewa, te here, te whakaemulsifying, te marara, te pupuri i te makuku me te tiaki i te colloid.Ka taea te whakarite otinga i roto i nga awhe pokey rereke.


Wā tuku: Feb-06-2023
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