Focus on Cellulose ethers

Methylcellulose

Methylcellulose

Methyl cellulose, whakapotohia hei MC, e mohiotia ana ko te cellulose methyl ether, he ether cellulose nonionic. Ko te ahua o te ma, te kowhai marama, te paura hina hina ranei, te kirikiri, te kikorangi ranei, te kore kakara, te reka, te kore-paitini me te kore-riri, hygroscopic.

Ka whakarewahia te Methylcellulose i roto i te waikawa acetic glacial, engari karekau i roto i nga whakarewa pararopi penei i te waihano, ether, acetone, me te chloroform. Ko te Methylcellulose he momo waiariki motuhake. Ka rewa i roto i te wai wera i runga ake i te 50°C, ka tere te marara me te pupuhi ki te hanga reera. Ka heke iho te pāmahana wai ki raro i te 50°C, ka memeha ki te wai ka puta he wairewa wai. Ka taea e nga wairewa wai me nga momo reera te taunekeneke tetahi ki tetahi.

Ko te whakaritenga o te methyl cellulose e whakamahi ana i te cellulose taiao penei i te miro penupenu me te penupenu rakau hei rauemi mata, ka tukuna ki te kawakore (pērā i te konutai waihā, me ētahi atu) kia whiwhi cellulose alkali, katahi ka whakaemihia ma te taapiri i te methyl chloride. Te tauhohenga i tetahi pāmahana, i muri i te horoinga, te whakakore, te whakamaroketanga, te whakamaroke me etahi atu tukanga, kia rite ki te maatanga o te hua me te ihirangi hangarau, ka taea te wehea te methyl cellulose ki te methyl cellulose methyl cellulose, te kai methyl cellulose, te methyl cellulose me etahi atu hua. .

He ātete te Methylcellulose ki te waikawa me te kawakore, te hinu, te wera, te microorganisms me te marama. He pai te matotoru, te hanga kiriata, te pupuri i te wai, te whakaemulsifying, te makuku, te marara, me nga taonga taapiri.

Ko te Methylcellulose he maha nga momo tono o raro, mai i te paninga, te waituhi, te whakapiri ki nga kakano, te ta me te tae ki te rongoa me te tukatuka kai. He maha nga ahumahi he tono tono mo nga hua me te waahi whanaketanga ahua whanui. I muri i te wa roa o te whakawhanaketanga tonu, kua hangaia e te ahumahi methyl cellulose o taku whenua tetahi tauine, a kei te piki haere te awhe hua, engari me tino tika i runga i te tauine me te whanaketanga matawhānui!


Te wa tuku: Hanuere-29-2023
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