Ko te Hydroxypropyl methylcellulose (HPMC), te cellulose raw, ka taea te para ki te miro, ki te penupenu rakau ranei, he mea tino tika kia kuru i mua i te whakamaaramatanga, i te wa ranei o te whakamaaramatanga, a ko te kuru na roto i te kaha miihini whakangaro i te hanganga whakahiato o te cellulose rauemi mata hei whakaiti i te tohu te tioata me te polymerization, te whakanui ake i te horahanga o te mata, na reira ka pai ake te urunga me te kaha tauhohenga matū o te reagent tauhohenga ki nga roopu hydroxyl e toru i runga i te roopu mowhiti huka o te macromolecule cellulose.
Ko te Hydroxypropyl methylcellulose (HPMC) ka whakamahia hei taputapu mata hei whakaputa hinu, ka taea te whakamahi i te huka katoa, te whakapai ake i te tere o te whakamahi i nga rauemi mata, te whakaiti i te toenga o te tïpako i roto i te hupa fermentation, me te whakaiti i te utu o te wai para. maimoatanga. Ko tenei hydroxypropyl methylcellulose Ko nga ahuatanga o te methylcellulose e pai ana ki te arotautanga o te puranga, te whangai-putea me nga tukanga fermentation tonu, te karo i te raupapa o nga raruraru penei i te whakahaere i te hanganga o te reo me te reiti waimeha; he pai hoki ki te whakahaere i te tukanga FERMENTATION. I te mea ko te mahi o te hydroxypropyl methylcellulose (HPMC) he rite ki etahi atu ethers wairewa-wai, ka taea te whakamahi i roto i te peita taherapa me nga waahanga peita kapia-wairewa-wairewa hei kaihoko kiriata-whakaahua, thickener, emulsifier me te stabilizer, me era atu. he pai te mau kakahu, te whakataurite me te piri, kua pai ake te maataki o te mata, te pumau ki te waikawa me te kawakawa, me te hototahi ki nga poaka konganuku.
He pai te painga o te Hydroxypropyl methylcellulose (HPMC) hei whakakaha mo te peita polyvinyl acetate ma te wai ma. Ko te tohu o te whakakapinga o te cellulose ether ka piki ake, ka kaha ake ano te aukati ki te horo huakita.
Ahakoa ehara i te mea uaua te maapono whakahiatotanga o te hydroxypropyl methyl cellulose (HPMC), me kawakore, ka whakakorikorihia nga mea mata, me te kawakore. Ko ia taiao o te whakamaarama, te whakaora whakarewa, te centrifugation, te horoi me te whakamaroke he maha nga hangarau matua me te matauranga nui.
Mo nga momo hua rereke, kei ia taiao nga tikanga whakahaere hou, penei i te pāmahana, te wa, te pehanga me te mana rere rawa. Ko nga taputapu awhina me nga taputapu whakahaere he taurangi pai mo te kounga hua me nga punaha whakaputa pono.
Wā tuku: Tihema-15-2022