I-starch ether kunye ne-seluplose i-ether ziintlobo ze-Ether ezisetyenzisiweyo kumashishini ahlukeneyo, ngakumbi ngokwakhiwa kunye neengubo. Ngelixa babelana ngokufanayo ngokubhekisele kwi-polymers eqinileyo emanzini enamabala amakhulu kunye nokuzinzisa, kukho umahluko osisiseko phakathi kwabo, ngokuyintloko kwimithombo yabo kunye nesakhiwo sabo sekhemikhali.
I-Starch Ether:
1. Umthombo:
-Imvelaphi yendalo: Isitatshi se-Ether sithathwe kwistatshi, eyi-carbohydrate efumaneka kwizityalo. Isitatshi siqhele ukwenziwa kwizityalo ezinje ngengqolowa, iitapile, okanye iCassava.
2. Isakhiwo semichiza:
-Ubume be-polymer: isitatshi yi-polysaccharide edityaniswe ngeeyunithi ze-glucose ezidityaniswe ne-Glycosidic. I-starches igxothiwe sisitatshi, apho amaqela e-hydroxyl kwimolekyuli yesitatshi athathwe ngamaqela e-ether.
3. Izicelo:
-Ishishini lokwakha: isitatshi see sisetyenziswa kwishishini lokwakha njengezongezwa kwiimveliso ezise-Gyppum ezisekwe kwiGyppum, izilwanyana, kunye nezinto ezisekwe kwisamente. Banegalelo ekuphuculeni ukusebenza, ukugcinwa kwamanzi, kunye nokunamathela.
4. Iindidi eziqhelekileyo:
- I-HYDROXYETHTH (HES): Uhlobo olunye lwesitatshi lwe-starch ether i-hydroxyetyl starch, apho amaqela e-hydroxyyl ayaziswa ukulungisa imeko yesitatshi.
I-seluplose ether:
1. Umthombo:
-Umvelaphi yendalo: I-Selese Ether isuselwa kwi-sellyulose, i-polymer yendalo efumaneka kwiindonga zeseli. Yinxalenye ephambili yeendonga zeseli zezityalo kwaye ikhutshwe kwimithombo yolwazi efana ne-pulp okanye umqhaphu.
2. Isakhiwo semichiza:
-Ubume bePolymer: I-Sellulose yi-polymer yomgca oquka iiyunithi ze-glucose ezidityaniswe yi-β-1,4-Glycosidic Bonds. I-Selessulose eves igxothiwe i-sellyulose, apho amaqela e-hydroxyl kwimolekyuli eselfowuni iguqulwa ngamaqela e-Ether.
3. Izicelo:
Imveliso yokwakha: I-Selesese Teltulose ehana ifumana ukusetyenziswa ngokubanzi kumzi-mveliso wokwakha, efana nooMatshi. Zisetyenziswa kwiimveliso ezisekwe kwisamente, imibhedesi ye-tile, kunye nokufa kwamarwele ukomeleza ukugcinwa kwamanzi, ukusebenza kunye nokunamathela.
4. Iindidi eziqhelekileyo:
-I-HYDROXYETHyL selutase (Hec): Uhlobo olunye oluqhelekileyo lwe-ether i-ether i-hydroxyyteethyl seluplose, apho amaqela e-hydroxyyl azaziswa ukuguqula isakhiwo seselselose.
-I-Methyl Selelose (MC): Olunye uhlobo oluqhelekileyo le-methyl seluplose, apho kwangeniswa khona amaqela ama-methyl.
Umahluko ophambili:
1. Umthombo:
-I-Stanch Ether isuselwa kwisitatshi, i-carbohydrate efumaneka kwizityalo.
-I-Selersese Ether isuselwa kwisellumse, eyona nto iphambili kwiindonga zeseli zezityalo.
2. Isakhiwo semichiza:
-Isiseko sepolymer ye-starch ether sisitatshi, i-polysacchaaccharacchaaccharide eneyunithi yeGlucose.
-Isiseko sepolymer ye-seluplose ether yi-seluplose, i-polymer ye-pilymer ye-Glucose iyunithi yeGlucose.
3. Izicelo:
- Zombini iintlobo ze-Eoni zisetyenziswa kumzi-mveliso wokwakha, kodwa izicelo ezithile kunye nefomu linokwahluka.
4. Iindidi eziqhelekileyo:
- I-HYDROXYTYL Starch (hes) kunye ne-hydroxyyteethl seluplose (hec) yiMizekelo ye-Ether Derivetives.
Ngelixa i-starch ether kunye ne-seluplose ether zimbini iipolisi ezisetyenziswa ngamanzi asetyenziswa njengezongezelelo kwizicelo ezahlukeneyo, umthombo, i-polymer yazo, kunye nemichiza ethile ye-polleme yahluka. Lo mahluko unokuphembelela intsebenzo yabo kwifom kunye nokusetyenziswa.
IXESHA LOKUQALA: UJan-06-2024