Focus on Cellulose ethers

He maha nga mea nui e pa ana ki te pupuri wai o te hydroxypropyl methylcellulose

He maha nga mea nui e pa ana ki te pupuri wai o te hydroxypropyl methylcellulose

Ko te Hydroxypropyl methylcellulose (HPMC) he ether cellulose kore-ionic i hangaia mai i te cellulose rauemi polymer taiao ma te raupapa o nga tukanga matū.He paura ma kore kakara, kore reka me te kore paitini e pupuhi ana ki roto i te wairewa colloidal maamaa, paku kapua ranei i roto i te wai matao.He matotoru, he here, he marara, he whakaehunga, he hanga kiriata, he whakatarewa, he whakakoi, he whakaraerae, he kaha te mata, he pupuri makuku me nga taonga colloid.Ka taea te whakamahi i te Hydroxypropyl methyl cellulose me te methyl cellulose i roto i nga taonga hanga whare, te ahumahi peita, te kapia waihanga, te ahumahi uku, te rongoa, te kai, te kakano, te ahuwhenua, te matū o ia ra me etahi atu ahumahi.

Ko te pupuri i te wai o te hua hydroxypropyl methylcellulose HPMC ano ka pa ki nga ahuatanga e whai ake nei:

1. Ko te nui o te hydroxypropyl methylcellulose HPMC kua tapirihia Ko te nui ake o te nui o te cellulose ether HPMC kua tapiritia, ka nui ake te tere o te pupuri wai me te pai ake o te paanga o te wai.I roto i te awhe o te 0.25-0.6% te taapiri, ka tere te tere o te pupuri i te wai me te pikinga o te moni taapiri;ka piki ake te moni taapiri, ka heke te pikinga o te reiti pupuri wai.

2. HPMC viscosity of hydroxypropyl methylcellulose Ina piki ake te viscosity o HPMC, ka piki hoki te reiti pupuri wai;ka tae te pokey ki tetahi taumata, ka ngawari te piki o te tere pupuri wai.

3. Hydroxypropyl methylcellulose HPMC waiariki waiariki waiariki Te wera o te waiariki, teitei te pupuri wai;ki te kore, iti te reiti pupuri wai.

4. Hydroxypropyl methylcellulose HPMC homogeneity HPMC me te tauhohenga rite, te methoxyl me te hydroxypropoxyl kua tohatohahia, he nui te tere o te pupuri wai.


Wā tuku: Mei-08-2023
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