Uyini umehluko phakathi kwe-starch ether ne-cellulose ether?

I-starch ether kanye ne-cellulose ether zombili izinhlobo zezinto ezisetshenziswa ezimbonini ezahlukene, ikakhulukazi ekwakheni nasekufakeni izinto. Nakuba zifana ngokufana ngokuba yi-polymers encibilika emanzini enezakhiwo zokujiya nokuzinzisa, kunomehluko omkhulu phakathi kwazo, ikakhulukazi emthonjeni wazo kanye nesakhiwo samakhemikhali.

I-Ether yesitashi:

1. Umthombo:
- Imvelaphi Yemvelo: I-starch ether itholakala ku-starch, okuyi-carbohydrate etholakala ezitshalweni. I-starch ivame ukukhishwa ezitshalweni ezifana nommbila, amazambane, noma i-cassava.

2. Isakhiwo Samakhemikhali:
- Ukwakheka kwe-Polymer: Isitashi siyi-polysaccharide eyakhiwe amayunithi e-glucose axhunywe yizibopho ze-glycosidic. Ama-starch ether ayizinto eziguquliwe zesitashi, lapho amaqembu e-hydroxyl ku-molecule yesitashi eshintshwa khona amaqembu e-ether.

3. Izicelo:
- Imboni Yokwakha: Ama-starch ether avame ukusetshenziswa embonini yokwakha njengezithasiselo emikhiqizweni esekelwe ku-gypsum, kuma-mortar, nasezintweni ezisekelwe kusimende. Anegalelo ekuthuthukiseni ukusebenza kahle, ukugcinwa kwamanzi, kanye nokunamathela.

4. Izinhlobo Ezivamile:
- Isitashi se-Hydroxyethyl (HES): Uhlobo olulodwa oluvamile lwe-starch ether yi-hydroxyethyl starch, lapho amaqembu e-hydroxyethyl efakwa khona ukuze ashintshe isakhiwo sesitashi.

I-Ether ye-Cellulose:

1. Umthombo:
- Imvelaphi Yemvelo: I-Cellulose ether itholakala ku-cellulose, i-polymer yemvelo etholakala ezindongeni zamaseli zezitshalo. Iyingxenye ebalulekile yezindonga zamaseli ezitshalo futhi ikhishwa emithonjeni efana ne-pulp yokhuni noma ikotini.

2. Isakhiwo Samakhemikhali:
- Ukwakheka kwe-Polymer: I-Cellulose iyi-polymer eqondile equkethe amayunithi e-glucose axhunywe yizibopho ze-β-1,4-glycosidic. Ama-ether e-Cellulose ayizinto ezivela ku-cellulose, lapho amaqembu e-hydroxyl ku-molecule ye-cellulose eguqulwa khona namaqembu e-ether.

3. Izicelo:
- Imboni Yokwakha: Ama-ether e-cellulose asetshenziswa kabanzi embonini yokwakha, afana nama-ether e-starch. Asetshenziswa emikhiqizweni esekelwe kusimende, kuma-adhesive ethayela, kanye nasezintweni zokubopha ukuze kuthuthukiswe ukugcinwa kwamanzi, ukusebenza kahle, kanye nokunamathela.

4. Izinhlobo Ezivamile:
- I-Hydroxyethyl Cellulose (HEC): Uhlobo olulodwa oluvamile lwe-cellulose ether yi-hydroxyethyl cellulose, lapho amaqembu e-hydroxyethyl efakwa khona ukuze ashintshe isakhiwo se-cellulose.
- I-Methyl Cellulose (MC): Olunye uhlobo oluvamile yi-methyl cellulose, lapho kungeniswa khona amaqembu e-methyl.

Umehluko Oyinhloko:

1. Umthombo:
- I-starch ether itholakala ku-starch, i-carbohydrate etholakala ezitshalweni.
- I-Cellulose ether itholakala ku-cellulose, ingxenye enkulu yezindonga zamaseli ezitshalo.

2. Isakhiwo Samakhemikhali:
- I-polymer eyisisekelo ye-starch ether yi-starch, i-polysaccharide eyakhiwe ngamayunithi e-glucose.
- I-polymer eyisisekelo ye-cellulose ether yi-cellulose, i-polymer eqondile eyakhiwe ngamayunithi e-glucose.

3. Izicelo:
- Zombili izinhlobo zama-ether zisetshenziswa embonini yokwakha, kodwa ukusetshenziswa kanye nokwakheka okuthile kungahluka.

4. Izinhlobo Ezivamile:
- Isitashi se-Hydroxyethyl (HES) kanye ne-hydroxyethyl cellulose (HEC) yizibonelo zalezi zinto ezitholakala ku-ether.

kuyilapho i-starch ether kanye ne-cellulose ether kungama-polymer ancibilika emanzini asetshenziswa njengezithasiselo ezinhlelweni ezahlukene, umthombo wawo, i-polymer eyisisekelo, kanye nezakhiwo ezithile zamakhemikhali ziyahlukahluka. Lokhu kwehluka kungathonya ukusebenza kwawo ekwakhiweni nasekusetshenzisweni okuthile.