Umehluko phakathi kwe-Hydroxypropylyl starch ether ne-hydroxypropyll methylcellulose ekwakheni

I-Hydroxypropyll starch ether (hpse) kanyeI-Hydroxypropyl methylcellulose (HPMC)ziyizinhlobo zombili zama-polymers ancibilikayo asetshenziswa embonini yezokwakha. Ngenkathi babelana ngokufana okuthile, kunomehluko obalulekile ezinhlakeni zabo zamakhemikhali kanye nezimpawu zokusebenza. Ngezansi kokuhlukaniswa okuyinhloko phakathi kwe-hydroxypropylyl starch ether kanye ne-hydroxypropyll methylcellulose kuzicelo zokwakha:

1. Isakhiwo samakhemikhali:

• I-HPSE (i-Hydroxypropyl starch ether):
  • Kuthathwe esitashi, okuyi-carbohydrate etholakala emithonjeni yezitshalo ehlukahlukene.
  • Iguqulwe nge-hydroxypropylation ukuthuthukisa izakhiwo zayo.
• Hpmc (hydroxypropyl methylcellulose):
  • Kususelwa ku-cellulose, i-polymer yemvelo etholakala ezindongeni zeseli zezitshalo.
  • Iguqulwe nge-hydroxypropylation kanye ne-methylation ukufeza izakhiwo ezifiselekayo.

2. Izinto zomthombo:

• I-HPSE:
  • Etholakala emithonjeni esekwe endaweni yesitshalo, njenge-corn, amazambane, noma i-tapioca.
• I-HPMC:
  • Ethathwe emithonjeni esekwe kwizitshalo, imvamisa uginindela wokhuni noma ukotini.

3. I-Solubity:

• I-HPSE:
  • Imvamisa ibonisa i-solubility yamanzi amahle, ivumela ukusakazeka okulula ekusungulweni okusekwe emanzini.
• I-HPMC:
  • Shelisa kakhulu amanzi, akha izixazululo ezicacile emanzini.

4. I-Thermal Gelation:

• I-HPSE:
  • Ezinye izithambisi ze-hydroxyproppropyll zingabonisa izakhiwo ze-gelation, lapho ukubonakala kwesixazululo kukhuphuka ngokushisa.
• I-HPMC:
  • Ngokuvamile ayikhombisi i-gelal ye-thermal, futhi ukubonakala kwalo kusalokhu kuzinze ngaphesheya kolunye amazinga okushisa.

I-5. Izakhiwo ezenziwe ngefilimu:

• I-HPSE:
  • Ingakha amafilimu ngokuguquguquka okuhle nezindawo zokunamathela.
• I-HPMC:
  • Ibonisa izakhiwo ezakha amafilimu, okufaka isandla ekutholeni okuthuthukile kanye nokuhlangana kokwakha.

6. Indima ekwakheni:

• I-HPSE:
  • Isetshenziswa kwizicelo zokwakha zokukhula kwayo, ukugcinwa kwamanzi, nezindawo ezinamathela. Ingaqashwa emikhiqizweni esekwe ku-gypsum, ngodaka, kanye nama-adhesives.
• I-HPMC:
  • Kusetshenziswe kabanzi ekwakheni indima yayo njenge-swerener, i-ejenti yokugcinwa kwamanzi, kanye nokusebenza kwe-enhancer. Kuvame ukutholakala odongeni osuselwa kukhonkolo, izinamathiseli, izinhlungu, nezinye izindlela.

7. Ukuvumelana:

• I-HPSE:
  • Iyahambisana nohla lwezingane zokwakha nezinto zokwakha.
• I-HPMC:
  • Ibonisa ukuhambisana okuhle nezinto zokwakha ezahlukahlukene kanye nezithasiselo.

8. Ukubeka isikhathi:

• I-HPSE:
  • Kungathinta isikhathi sokubeka ezakhiweni zokwakha ezithile.
• I-HPMC:
  • Ingathonya isikhathi sokusetha kodaka neminye imikhiqizo eqinisekisiwe.

9. Ukuvumelana nezimo:

• I-HPSE:
  • Amafilimu akhiwa yi-Hydroxyproppropylyllopyllopylyl
• I-HPMC:
  • Kunomthelela ekuguquleni nasekulinganiseni ukuqhekeka ekwakhekeni kokwakha.

10. Izindawo zohlelo lokusebenza:

• I-HPSE:
  • Kutholakale emikhiqizweni ehlukahlukene yokwakha, kufaka phakathi udaka, ama-putty, kanye nokunamathela.
• I-HPMC:
  • Isetshenziswa kakhulu odongeni osuselwa kukhonkolo, ama-tile anamathela, ama-grouts, nezinye izinto zokwakha.

Ngamafuphi, kuyilapho womabili ama-hydroxyproppropylylyl ether (hpse) kanye ne-hpdroxypropyll methylcellulose (HPMC) isebenza ngezinhloso ezifanayo ekwakheni, imvelaphi yabo ehlukile yamakhemikhali, izici ze-solubity, nezinye izakhiwo zibenza zilungele ukwakheka okuhlukile kanye nezicelo ngaphakathi kwemboni yokwakha. Ukukhetha phakathi kwabo kuncike kwizidingo ezithile zezinto zokwakha kanye nezimpawu zokusebenza ozifunayo.